54 files changed, 3745 insertions, 0 deletions

diff --git a/patches/boot_time_opt/0011-drm-i915-fbc-sanitize-fbc-GEN-greater-than-9.patch b/patches/boot_time_opt/0011-drm-i915-fbc-sanitize-fbc-GEN-greater-than-9.patch
new file mode 100644
index 0000000..33debcd
--- /dev/null
+++ b/patches/boot_time_opt/0011-drm-i915-fbc-sanitize-fbc-GEN-greater-than-9.patch
@@ -0,0 +1,25 @@
+From 07639791f247ae7a807444106b9b7611f070d02b Mon Sep 17 00:00:00 2001
+From: Arjan van de Ven <arjan@linux.intel.com>
+Date: Fri, 6 Jan 2017 13:28:29 +0000
+Subject: [PATCH] drm/i915/fbc: sanitize fbc GEN greater than 9
+
+---
+ drivers/gpu/drm/i915/intel_fbc.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/drivers/gpu/drm/i915/intel_fbc.c b/drivers/gpu/drm/i915/intel_fbc.c
+index c43dd9abce79..f5a2560840f3 100644
+--- a/drivers/gpu/drm/i915/intel_fbc.c
++++ b/drivers/gpu/drm/i915/intel_fbc.c
+@@ -1262,7 +1262,7 @@ static int intel_sanitize_fbc_option(struct drm_i915_private *dev_priv)
+        if (!HAS_FBC(dev_priv))
+                return 0;
+ 
+-       if (IS_BROADWELL(dev_priv))
++       if (IS_BROADWELL(dev_priv) || INTEL_GEN(dev_priv) >= 9)
+                return 1;
+ 
+        return 0;
+-- 
+2.11.1
+
diff --git a/patches/boot_time_opt/0101-kvm-silence-kvm-unhandled-rdmsr.patch b/patches/boot_time_opt/0101-kvm-silence-kvm-unhandled-rdmsr.patch
new file mode 100644
index 0000000..aeb3abf
--- /dev/null
+++ b/patches/boot_time_opt/0101-kvm-silence-kvm-unhandled-rdmsr.patch
@@ -0,0 +1,29 @@
+From f45c353859fc0ceb75fef3a2f4a2c179dfa378d7 Mon Sep 17 00:00:00 2001
+From: Arjan van de Ven <arjan@linux.intel.com>
+Date: Tue, 23 Jun 2015 01:16:45 -0500
+Subject: [PATCH 101/124] kvm: silence kvm unhandled rdmsr
+
+Author:    Arjan van de Ven <arjan@linux.intel.com>
+
+Signed-off-by: Miguel Bernal Marin <miguel.bernal.marin@linux.intel.com>
+Signed-off-by: Jose Carlos Venegas Munoz <jos.c.venegas.munoz@intel.com>
+---
+ arch/x86/kvm/x86.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
+index 731044efb195..582c75311f95 100644
+--- a/arch/x86/kvm/x86.c
++++ b/arch/x86/kvm/x86.c
+@@ -2506,7 +2506,7 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
+                if (kvm_pmu_is_valid_msr(vcpu, msr_info->index))
+                        return kvm_pmu_get_msr(vcpu, msr_info->index, &msr_info->data);
+                if (!ignore_msrs) {
+-                       vcpu_unimpl(vcpu, "unhandled rdmsr: 0x%x\n", msr_info->index);
++//                     vcpu_unimpl(vcpu, "unhandled rdmsr: 0x%x\n", msr_info->index);
+                        return 1;
+                } else {
+                        vcpu_unimpl(vcpu, "ignored rdmsr: 0x%x\n", msr_info->index);
+-- 
+2.11.1
+
diff --git a/patches/boot_time_opt/0102-i8042-decrease-debug-message-level-to-info.patch b/patches/boot_time_opt/0102-i8042-decrease-debug-message-level-to-info.patch
new file mode 100644
index 0000000..96fd92b
--- /dev/null
+++ b/patches/boot_time_opt/0102-i8042-decrease-debug-message-level-to-info.patch
@@ -0,0 +1,65 @@
+From 7e847b13b753ec632fef2f1ffa0d8f5b444c967b Mon Sep 17 00:00:00 2001
+From: Arjan van de Ven <arjan@linux.intel.com>
+Date: Tue, 23 Jun 2015 01:26:52 -0500
+Subject: [PATCH 102/124] i8042: decrease debug message level to info
+
+Author:    Arjan van de Ven <arjan@linux.intel.com>
+
+Signed-off-by: Miguel Bernal Marin <miguel.bernal.marin@linux.intel.com>
+Signed-off-by: Jose Carlos Venegas Munoz <jos.c.venegas.munoz@intel.com>
+---
+ drivers/input/serio/i8042.c | 10 +++++-----
+ 1 file changed, 5 insertions(+), 5 deletions(-)
+
+diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c
+index 89abfdb539ac..5317c41b049e 100644
+--- a/drivers/input/serio/i8042.c
++++ b/drivers/input/serio/i8042.c
+@@ -593,7 +593,7 @@ static int i8042_enable_kbd_port(void)
+        if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR)) {
+                i8042_ctr &= ~I8042_CTR_KBDINT;
+                i8042_ctr |= I8042_CTR_KBDDIS;
+-               pr_err("Failed to enable KBD port\n");
++               pr_info("Failed to enable KBD port\n");
+                return -EIO;
+        }
+ 
+@@ -612,7 +612,7 @@ static int i8042_enable_aux_port(void)
+        if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR)) {
+                i8042_ctr &= ~I8042_CTR_AUXINT;
+                i8042_ctr |= I8042_CTR_AUXDIS;
+-               pr_err("Failed to enable AUX port\n");
++               pr_info("Failed to enable AUX port\n");
+                return -EIO;
+        }
+ 
+@@ -704,7 +704,7 @@ static int __init i8042_check_mux(void)
+        i8042_ctr &= ~I8042_CTR_AUXINT;
+ 
+        if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR)) {
+-               pr_err("Failed to disable AUX port, can't use MUX\n");
++               pr_info("Failed to disable AUX port, can't use MUX\n");
+                return -EIO;
+        }
+ 
+@@ -927,7 +927,7 @@ static int i8042_controller_selftest(void)
+        do {
+ 
+                if (i8042_command(&param, I8042_CMD_CTL_TEST)) {
+-                       pr_err("i8042 controller selftest timeout\n");
++                       pr_info("i8042 controller selftest timeout\n");
+                        return -ENODEV;
+                }
+ 
+@@ -949,7 +949,7 @@ static int i8042_controller_selftest(void)
+        pr_info("giving up on controller selftest, continuing anyway...\n");
+        return 0;
+ #else
+-       pr_err("i8042 controller selftest failed\n");
++       pr_info("i8042 controller selftest failed\n");
+        return -EIO;
+ #endif
+ }
+-- 
+2.11.1
+
diff --git a/patches/boot_time_opt/0103-init-do_mounts-recreate-dev-root.patch b/patches/boot_time_opt/0103-init-do_mounts-recreate-dev-root.patch
new file mode 100644
index 0000000..bb7bb9f
--- /dev/null
+++ b/patches/boot_time_opt/0103-init-do_mounts-recreate-dev-root.patch
@@ -0,0 +1,42 @@
+From 838abc7e5f43ea40a2cc05ebd6c7321b6d84b057 Mon Sep 17 00:00:00 2001
+From: Miguel Bernal Marin <miguel.bernal.marin@linux.intel.com>
+Date: Fri, 20 Nov 2015 14:01:26 -0600
+Subject: [PATCH 103/124] init: do_mounts: recreate /dev/root
+
+Rootfs shows as is mounted in /dev/root, but this devices is not present in
+/dev directory.
+
+Signed-off-by: Miguel Bernal Marin <miguel.bernal.marin@linux.intel.com>
+---
+ init/do_mounts.c | 8 ++++++++
+ 1 file changed, 8 insertions(+)
+
+diff --git a/init/do_mounts.c b/init/do_mounts.c
+index dea5de95c2dd..d74a346b2dfa 100644
+--- a/init/do_mounts.c
++++ b/init/do_mounts.c
+@@ -549,6 +549,7 @@ void __init mount_root(void)
+ void __init prepare_namespace(void)
+ {
+        int is_floppy;
++       int err;
+ 
+        if (root_delay) {
+                printk(KERN_INFO "Waiting %d sec before mounting root device...\n",
+@@ -602,6 +603,13 @@ void __init prepare_namespace(void)
+        devtmpfs_mount("dev");
+        sys_mount(".", "/", NULL, MS_MOVE, NULL);
+        sys_chroot(".");
++#ifdef CONFIG_BLOCK
++       /* recreate the /dev/root */
++       err = create_dev("/dev/root", ROOT_DEV);
++
++       if (err < 0)
++               pr_emerg("Failed to create /dev/root: %d\n", err);
++#endif
+ }
+ 
+ static bool is_tmpfs;
+-- 
+2.11.1
+
diff --git a/patches/boot_time_opt/0104-Increase-the-ext4-default-commit-age.patch b/patches/boot_time_opt/0104-Increase-the-ext4-default-commit-age.patch
new file mode 100644
index 0000000..fb709b4
--- /dev/null
+++ b/patches/boot_time_opt/0104-Increase-the-ext4-default-commit-age.patch
@@ -0,0 +1,35 @@
+From b6970d43f97325c9acc7bd942dcd192586d8d407 Mon Sep 17 00:00:00 2001
+From: Arjan van de Ven <arjan@linux.intel.com>
+Date: Mon, 11 Jan 2016 10:01:44 -0600
+Subject: [PATCH 104/124] Increase the ext4 default commit age
+
+Both the VM and EXT4 have a "commit to disk after X seconds" time.
+Currently the EXT4 time is shorter than our VM time, which is a bit
+suboptional,
+it's better for performance to let the VM do the writeouts in bulk
+rather than something deep in the journalling layer.
+
+(DISTRO TWEAK -- NOT FOR UPSTREAM)
+
+Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
+Signed-off-by: Jose Carlos Venegas Munoz <jose.carlos.venegas.munoz@intel.com>
+---
+ include/linux/jbd2.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
+index dfaa1f4dcb0c..9955fd6c6159 100644
+--- a/include/linux/jbd2.h
++++ b/include/linux/jbd2.h
+@@ -47,7 +47,7 @@
+ /*
+  * The default maximum commit age, in seconds.
+  */
+-#define JBD2_DEFAULT_MAX_COMMIT_AGE 5
++#define JBD2_DEFAULT_MAX_COMMIT_AGE 30
+ 
+ #ifdef CONFIG_JBD2_DEBUG
+ /*
+-- 
+2.11.1
+
diff --git a/patches/boot_time_opt/0105-silence-rapl.patch b/patches/boot_time_opt/0105-silence-rapl.patch
new file mode 100644
index 0000000..4dd78fc
--- /dev/null
+++ b/patches/boot_time_opt/0105-silence-rapl.patch
@@ -0,0 +1,25 @@
+From 558d32869c8d8e302dd3810610d62e1c69a8ebce Mon Sep 17 00:00:00 2001
+From: Arjan van de Ven <arjan@linux.intel.com>
+Date: Mon, 14 Mar 2016 11:22:09 -0600
+Subject: [PATCH 105/124] silence rapl
+
+---
+ drivers/powercap/intel_rapl.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/drivers/powercap/intel_rapl.c b/drivers/powercap/intel_rapl.c
+index 3c71f608b444..450aff027d42 100644
+--- a/drivers/powercap/intel_rapl.c
++++ b/drivers/powercap/intel_rapl.c
+@@ -1684,7 +1684,7 @@ static int __init rapl_init(void)
+ 
+        id = x86_match_cpu(rapl_ids);
+        if (!id) {
+-               pr_err("driver does not support CPU family %d model %d\n",
++               pr_info("driver does not support CPU family %d model %d\n",
+                        boot_cpu_data.x86, boot_cpu_data.x86_model);
+ 
+                return -ENODEV;
+-- 
+2.11.1
+
diff --git a/patches/boot_time_opt/0106-pci-pme-wakeups.patch b/patches/boot_time_opt/0106-pci-pme-wakeups.patch
new file mode 100644
index 0000000..f0a4799
--- /dev/null
+++ b/patches/boot_time_opt/0106-pci-pme-wakeups.patch
@@ -0,0 +1,27 @@
+From 1f44219cd74f5c3b97e2c85af87141e1bddf0555 Mon Sep 17 00:00:00 2001
+From: Arjan van de Ven <arjan@linux.intel.com>
+Date: Mon, 14 Mar 2016 11:10:58 -0600
+Subject: [PATCH 106/124] pci pme wakeups
+
+Reduce wakeups for PME checks, which are a workaround for miswired
+boards (sadly, too many of them) in laptops.
+---
+ drivers/pci/pci.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
+index eda6a7cf0e54..82a623255059 100644
+--- a/drivers/pci/pci.c
++++ b/drivers/pci/pci.c
+@@ -57,7 +57,7 @@ struct pci_pme_device {
+        struct pci_dev *dev;
+ };
+ 
+-#define PME_TIMEOUT 1000 /* How long between PME checks */
++#define PME_TIMEOUT 4000 /* How long between PME checks */
+ 
+ static void pci_dev_d3_sleep(struct pci_dev *dev)
+ {
+-- 
+2.11.1
+
diff --git a/patches/boot_time_opt/0107-ksm-wakeups.patch b/patches/boot_time_opt/0107-ksm-wakeups.patch
new file mode 100644
index 0000000..2b25625
--- /dev/null
+++ b/patches/boot_time_opt/0107-ksm-wakeups.patch
@@ -0,0 +1,34 @@
+From a5de04044d428bf54472365e7dc07958aa184daf Mon Sep 17 00:00:00 2001
+From: Arjan van de Ven <arjan@linux.intel.com>
+Date: Mon, 14 Mar 2016 11:06:46 -0600
+Subject: [PATCH 107/124] ksm-wakeups
+
+reduce wakeups in ksm by adding rounding (aligning) when the sleep times are 1 second or longer
+
+Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
+---
+ mm/ksm.c | 8 ++++++--
+ 1 file changed, 6 insertions(+), 2 deletions(-)
+
+diff --git a/mm/ksm.c b/mm/ksm.c
+index 9ae6011a41f8..eecd3ff669e2 100644
+--- a/mm/ksm.c
++++ b/mm/ksm.c
+@@ -1725,8 +1725,12 @@ static int ksm_scan_thread(void *nothing)
+                try_to_freeze();
+ 
+                if (ksmd_should_run()) {
+-                       schedule_timeout_interruptible(
+-                               msecs_to_jiffies(ksm_thread_sleep_millisecs));
++                       if (ksm_thread_sleep_millisecs >= 1000)
++                               schedule_timeout_interruptible(
++                                       msecs_to_jiffies(round_jiffies_relative(ksm_thread_sleep_millisecs)));
++                       else
++                               schedule_timeout_interruptible(
++                                       msecs_to_jiffies(ksm_thread_sleep_millisecs));
+                } else {
+                        wait_event_freezable(ksm_thread_wait,
+                                ksmd_should_run() || kthread_should_stop());
+-- 
+2.11.1
+
diff --git a/patches/boot_time_opt/0108-intel_idle-tweak-cpuidle-cstates.patch b/patches/boot_time_opt/0108-intel_idle-tweak-cpuidle-cstates.patch
new file mode 100644
index 0000000..da5396c
--- /dev/null
+++ b/patches/boot_time_opt/0108-intel_idle-tweak-cpuidle-cstates.patch
@@ -0,0 +1,227 @@
+From bf7e0cebaafe790f62cbc5815648d556847b7d27 Mon Sep 17 00:00:00 2001
+From: Arjan van de Ven <arjan@linux.intel.com>
+Date: Sat, 19 Mar 2016 21:32:19 -0400
+Subject: [PATCH 108/124] intel_idle: tweak cpuidle cstates
+
+Increase target_residency in cpuidle cstate
+
+Tune intel_idle to be a bit less agressive;
+Clear linux is cleaner in hygiene (wakupes) than the average linux,
+so we can afford changing these in a way that increases
+performance while keeping power efficiency
+---
+ drivers/idle/intel_idle.c | 74 +++++++++++------------------------------------
+ 1 file changed, 17 insertions(+), 57 deletions(-)
+
+diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
+index 4466a2f969d7..cbab050b83f0 100644
+--- a/drivers/idle/intel_idle.c
++++ b/drivers/idle/intel_idle.c
+@@ -475,7 +475,7 @@ static struct cpuidle_state hsw_cstates[] = {
+                .desc = "MWAIT 0x10",
+                .flags = MWAIT2flg(0x10) | CPUIDLE_FLAG_TLB_FLUSHED,
+                .exit_latency = 33,
+-               .target_residency = 100,
++               .target_residency = 1000,
+                .enter = &intel_idle,
+                .enter_freeze = intel_idle_freeze, },
+        {
+@@ -483,7 +483,7 @@ static struct cpuidle_state hsw_cstates[] = {
+                .desc = "MWAIT 0x20",
+                .flags = MWAIT2flg(0x20) | CPUIDLE_FLAG_TLB_FLUSHED,
+                .exit_latency = 133,
+-               .target_residency = 400,
++               .target_residency = 4000,
+                .enter = &intel_idle,
+                .enter_freeze = intel_idle_freeze, },
+        {
+@@ -491,7 +491,7 @@ static struct cpuidle_state hsw_cstates[] = {
+                .desc = "MWAIT 0x32",
+                .flags = MWAIT2flg(0x32) | CPUIDLE_FLAG_TLB_FLUSHED,
+                .exit_latency = 166,
+-               .target_residency = 500,
++               .target_residency = 5000,
+                .enter = &intel_idle,
+                .enter_freeze = intel_idle_freeze, },
+        {
+@@ -499,7 +499,7 @@ static struct cpuidle_state hsw_cstates[] = {
+                .desc = "MWAIT 0x40",
+                .flags = MWAIT2flg(0x40) | CPUIDLE_FLAG_TLB_FLUSHED,
+                .exit_latency = 300,
+-               .target_residency = 900,
++               .target_residency = 9000,
+                .enter = &intel_idle,
+                .enter_freeze = intel_idle_freeze, },
+        {
+@@ -507,7 +507,7 @@ static struct cpuidle_state hsw_cstates[] = {
+                .desc = "MWAIT 0x50",
+                .flags = MWAIT2flg(0x50) | CPUIDLE_FLAG_TLB_FLUSHED,
+                .exit_latency = 600,
+-               .target_residency = 1800,
++               .target_residency = 18000,
+                .enter = &intel_idle,
+                .enter_freeze = intel_idle_freeze, },
+        {
+@@ -515,7 +515,7 @@ static struct cpuidle_state hsw_cstates[] = {
+                .desc = "MWAIT 0x60",
+                .flags = MWAIT2flg(0x60) | CPUIDLE_FLAG_TLB_FLUSHED,
+                .exit_latency = 2600,
+-               .target_residency = 7700,
++               .target_residency = 77000,
+                .enter = &intel_idle,
+                .enter_freeze = intel_idle_freeze, },
+        {
+@@ -531,27 +531,11 @@ static struct cpuidle_state bdw_cstates[] = {
+                .enter = &intel_idle,
+                .enter_freeze = intel_idle_freeze, },
+        {
+-               .name = "C1E-BDW",
+-               .desc = "MWAIT 0x01",
+-               .flags = MWAIT2flg(0x01),
+-               .exit_latency = 10,
+-               .target_residency = 20,
+-               .enter = &intel_idle,
+-               .enter_freeze = intel_idle_freeze, },
+-       {
+-               .name = "C3-BDW",
+-               .desc = "MWAIT 0x10",
+-               .flags = MWAIT2flg(0x10) | CPUIDLE_FLAG_TLB_FLUSHED,
+-               .exit_latency = 40,
+-               .target_residency = 100,
+-               .enter = &intel_idle,
+-               .enter_freeze = intel_idle_freeze, },
+-       {
+                .name = "C6-BDW",
+                .desc = "MWAIT 0x20",
+                .flags = MWAIT2flg(0x20) | CPUIDLE_FLAG_TLB_FLUSHED,
+                .exit_latency = 133,
+-               .target_residency = 400,
++               .target_residency = 4000,
+                .enter = &intel_idle,
+                .enter_freeze = intel_idle_freeze, },
+        {
+@@ -559,7 +543,7 @@ static struct cpuidle_state bdw_cstates[] = {
+                .desc = "MWAIT 0x32",
+                .flags = MWAIT2flg(0x32) | CPUIDLE_FLAG_TLB_FLUSHED,
+                .exit_latency = 166,
+-               .target_residency = 500,
++               .target_residency = 5000,
+                .enter = &intel_idle,
+                .enter_freeze = intel_idle_freeze, },
+        {
+@@ -567,7 +551,7 @@ static struct cpuidle_state bdw_cstates[] = {
+                .desc = "MWAIT 0x40",
+                .flags = MWAIT2flg(0x40) | CPUIDLE_FLAG_TLB_FLUSHED,
+                .exit_latency = 300,
+-               .target_residency = 900,
++               .target_residency = 9000,
+                .enter = &intel_idle,
+                .enter_freeze = intel_idle_freeze, },
+        {
+@@ -575,7 +559,7 @@ static struct cpuidle_state bdw_cstates[] = {
+                .desc = "MWAIT 0x50",
+                .flags = MWAIT2flg(0x50) | CPUIDLE_FLAG_TLB_FLUSHED,
+                .exit_latency = 600,
+-               .target_residency = 1800,
++               .target_residency = 18000,
+                .enter = &intel_idle,
+                .enter_freeze = intel_idle_freeze, },
+        {
+@@ -583,7 +567,7 @@ static struct cpuidle_state bdw_cstates[] = {
+                .desc = "MWAIT 0x60",
+                .flags = MWAIT2flg(0x60) | CPUIDLE_FLAG_TLB_FLUSHED,
+                .exit_latency = 2600,
+-               .target_residency = 7700,
++               .target_residency = 77000,
+                .enter = &intel_idle,
+                .enter_freeze = intel_idle_freeze, },
+        {
+@@ -600,27 +584,11 @@ static struct cpuidle_state skl_cstates[] = {
+                .enter = &intel_idle,
+                .enter_freeze = intel_idle_freeze, },
+        {
+-               .name = "C1E-SKL",
+-               .desc = "MWAIT 0x01",
+-               .flags = MWAIT2flg(0x01),
+-               .exit_latency = 10,
+-               .target_residency = 20,
+-               .enter = &intel_idle,
+-               .enter_freeze = intel_idle_freeze, },
+-       {
+-               .name = "C3-SKL",
+-               .desc = "MWAIT 0x10",
+-               .flags = MWAIT2flg(0x10) | CPUIDLE_FLAG_TLB_FLUSHED,
+-               .exit_latency = 70,
+-               .target_residency = 100,
+-               .enter = &intel_idle,
+-               .enter_freeze = intel_idle_freeze, },
+-       {
+                .name = "C6-SKL",
+                .desc = "MWAIT 0x20",
+                .flags = MWAIT2flg(0x20) | CPUIDLE_FLAG_TLB_FLUSHED,
+                .exit_latency = 85,
+-               .target_residency = 200,
++               .target_residency = 2000,
+                .enter = &intel_idle,
+                .enter_freeze = intel_idle_freeze, },
+        {
+@@ -628,7 +596,7 @@ static struct cpuidle_state skl_cstates[] = {
+                .desc = "MWAIT 0x33",
+                .flags = MWAIT2flg(0x33) | CPUIDLE_FLAG_TLB_FLUSHED,
+                .exit_latency = 124,
+-               .target_residency = 800,
++               .target_residency = 8000,
+                .enter = &intel_idle,
+                .enter_freeze = intel_idle_freeze, },
+        {
+@@ -636,7 +604,7 @@ static struct cpuidle_state skl_cstates[] = {
+                .desc = "MWAIT 0x40",
+                .flags = MWAIT2flg(0x40) | CPUIDLE_FLAG_TLB_FLUSHED,
+                .exit_latency = 200,
+-               .target_residency = 800,
++               .target_residency = 8000,
+                .enter = &intel_idle,
+                .enter_freeze = intel_idle_freeze, },
+        {
+@@ -644,7 +612,7 @@ static struct cpuidle_state skl_cstates[] = {
+                .desc = "MWAIT 0x50",
+                .flags = MWAIT2flg(0x50) | CPUIDLE_FLAG_TLB_FLUSHED,
+                .exit_latency = 480,
+-               .target_residency = 5000,
++               .target_residency = 50000,
+                .enter = &intel_idle,
+                .enter_freeze = intel_idle_freeze, },
+        {
+@@ -652,7 +620,7 @@ static struct cpuidle_state skl_cstates[] = {
+                .desc = "MWAIT 0x60",
+                .flags = MWAIT2flg(0x60) | CPUIDLE_FLAG_TLB_FLUSHED,
+                .exit_latency = 890,
+-               .target_residency = 5000,
++               .target_residency = 50000,
+                .enter = &intel_idle,
+                .enter_freeze = intel_idle_freeze, },
+        {
+@@ -669,19 +637,11 @@ static struct cpuidle_state skx_cstates[] = {
+                .enter = &intel_idle,
+                .enter_freeze = intel_idle_freeze, },
+        {
+-               .name = "C1E-SKX",
+-               .desc = "MWAIT 0x01",
+-               .flags = MWAIT2flg(0x01),
+-               .exit_latency = 10,
+-               .target_residency = 20,
+-               .enter = &intel_idle,
+-               .enter_freeze = intel_idle_freeze, },
+-       {
+                .name = "C6-SKX",
+                .desc = "MWAIT 0x20",
+                .flags = MWAIT2flg(0x20) | CPUIDLE_FLAG_TLB_FLUSHED,
+                .exit_latency = 133,
+-               .target_residency = 600,
++               .target_residency = 1600,
+                .enter = &intel_idle,
+                .enter_freeze = intel_idle_freeze, },
+        {
+-- 
+2.11.1
+
diff --git a/patches/boot_time_opt/0109-xattr-allow-setting-user.-attributes-on-symlinks-by-.patch b/patches/boot_time_opt/0109-xattr-allow-setting-user.-attributes-on-symlinks-by-.patch
new file mode 100644
index 0000000..70247a0
--- /dev/null
+++ b/patches/boot_time_opt/0109-xattr-allow-setting-user.-attributes-on-symlinks-by-.patch
@@ -0,0 +1,56 @@
+From 4170571f7bb0897c90e13b2fcf3ee06990a9e774 Mon Sep 17 00:00:00 2001
+From: Alan Cox <alan@linux.intel.com>
+Date: Thu, 10 Mar 2016 15:11:28 +0000
+Subject: [PATCH 109/124] xattr: allow setting user.* attributes on symlinks by
+ owner
+
+Kvmtool and clear containers supports using user attributes to label host
+files with the virtual uid/guid of the file in the container. This allows an
+end user to manage their files and a complete uid space without all the ugly
+namespace stuff.
+
+The one gap in the support is symlinks because an end user can change the
+ownership of a symbolic link. We support attributes on these files as you
+can already (as root) set security attributes on them.
+
+The current rules seem slightly over-paranoid and as we have a use case this
+patch enables updating the attributes on a symbolic link IFF you are the
+owner of the synlink (as permissions are not usually meaningful on the link
+itself).
+
+Signed-off-by: Alan Cox <alan@linux.intel.com>
+---
+ fs/xattr.c | 14 ++++++++------
+ 1 file changed, 8 insertions(+), 6 deletions(-)
+
+diff --git a/fs/xattr.c b/fs/xattr.c
+index 2d13b4e62fae..580a5aeddfd2 100644
+--- a/fs/xattr.c
++++ b/fs/xattr.c
+@@ -118,15 +118,17 @@ xattr_permission(struct inode *inode, const char *name, int mask)
+        }
+ 
+        /*
+-        * In the user.* namespace, only regular files and directories can have
+-        * extended attributes. For sticky directories, only the owner and
+-        * privileged users can write attributes.
++        * In the user.* namespace, only regular files, symbolic links, and
++        * directories can have extended attributes. For symbolic links and
++        * sticky directories, only the owner and privileged users can write
++        * attributes.
+         */
+        if (!strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN)) {
+-               if (!S_ISREG(inode->i_mode) && !S_ISDIR(inode->i_mode))
++               if (!S_ISREG(inode->i_mode) && !S_ISDIR(inode->i_mode) && !S_ISLNK(inode->i_mode))
+                        return (mask & MAY_WRITE) ? -EPERM : -ENODATA;
+-               if (S_ISDIR(inode->i_mode) && (inode->i_mode & S_ISVTX) &&
+-                   (mask & MAY_WRITE) && !inode_owner_or_capable(inode))
++               if (((S_ISDIR(inode->i_mode) && (inode->i_mode & S_ISVTX))
++                       || S_ISLNK(inode->i_mode)) && (mask & MAY_WRITE)
++                       && !inode_owner_or_capable(inode))
+                        return -EPERM;
+        }
+ 
+-- 
+2.11.1
+
diff --git a/patches/boot_time_opt/0110-init_task-faster-timerslack.patch b/patches/boot_time_opt/0110-init_task-faster-timerslack.patch
new file mode 100644
index 0000000..b0075ff
--- /dev/null
+++ b/patches/boot_time_opt/0110-init_task-faster-timerslack.patch
@@ -0,0 +1,32 @@
+From 42c2cb32259b76fb1f6713d99c4f0922e97bcc8d Mon Sep 17 00:00:00 2001
+From: Arjan van de Ven <arjan@linux.intel.com>
+Date: Wed, 23 Mar 2016 14:52:41 +0000
+Subject: [PATCH 110/124] init_task: faster timerslack
+
+the default tuning is a compromise between client power and server performance;
+for a server distro like Clear Linux, we don't need to compromise.
+(for non-server usages we have different kernel binaries)
+
+in principle this can be done as a patch to systemd as well, but we have a shared
+systemd between usages while we have different kernels, so the logistics
+for where the patch goes work out better here
+---
+ include/linux/init_task.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/include/linux/init_task.h b/include/linux/init_task.h
+index 325f649d77ff..e0eb261e17cb 100644
+--- a/include/linux/init_task.h
++++ b/include/linux/init_task.h
+@@ -249,7 +249,7 @@ extern struct task_group root_task_group;
+        .journal_info   = NULL,                                         \
+        .cpu_timers     = INIT_CPU_TIMERS(tsk.cpu_timers),              \
+        .pi_lock        = __RAW_SPIN_LOCK_UNLOCKED(tsk.pi_lock),        \
+-       .timer_slack_ns = 50000, /* 50 usec default slack */            \
++       .timer_slack_ns = 1000, /* 1 usec default slack */              \
+        .pids = {                                                       \
+                [PIDTYPE_PID]  = INIT_PID_LINK(PIDTYPE_PID),            \
+                [PIDTYPE_PGID] = INIT_PID_LINK(PIDTYPE_PGID),           \
+-- 
+2.11.1
+
diff --git a/patches/boot_time_opt/0112-fs-ext4-fsync-optimize-double-fsync-a-bunch.patch b/patches/boot_time_opt/0112-fs-ext4-fsync-optimize-double-fsync-a-bunch.patch
new file mode 100644
index 0000000..7d0def8
--- /dev/null
+++ b/patches/boot_time_opt/0112-fs-ext4-fsync-optimize-double-fsync-a-bunch.patch
@@ -0,0 +1,158 @@
+From 3152053ea1ea3aa77bcc7e990d48ef84621ff6c9 Mon Sep 17 00:00:00 2001
+From: Arjan van de Ven <arjan@linux.intel.com>
+Date: Sat, 9 Apr 2016 22:41:37 +0000
+Subject: [PATCH 112/124] fs: ext4: fsync: optimize double-fsync() a bunch
+
+There are cases where EXT4 is a bit too conservative sending barriers down to the disk;
+there are cases where the transaction in progress is not the one that sent the barrier
+(in other words: the fsync is for a file for which the IO happened more time ago
+and all data was already sent to the disk). For that case, a more performing tradeoff
+can be made on SSD devices (which have the ability to flush their dram caches in a hurry
+on a power fail event) where the barrier gets sent to the disk, but we don't need to wait
+for the barrier to complete. Any consecutive IO will block on the barrier correctly.
+---
+ block/bio.c            | 20 ++++++++++++++++++++
+ block/blk-flush.c      | 41 +++++++++++++++++++++++++++++++++++++++++
+ fs/ext4/fsync.c        |  6 +++++-
+ include/linux/bio.h    |  1 +
+ include/linux/blkdev.h |  5 +++++
+ 5 files changed, 72 insertions(+), 1 deletion(-)
+
+diff --git a/block/bio.c b/block/bio.c
+index db85c5753a76..80f5ab6b536a 100644
+--- a/block/bio.c
++++ b/block/bio.c
+@@ -882,6 +882,26 @@ int submit_bio_wait(struct bio *bio)
+ }
+ EXPORT_SYMBOL(submit_bio_wait);
+ 
++static void submit_bio_nowait_endio(struct bio *bio)
++{
++       bio_put(bio);
++}
++
++/**
++ * submit_bio_nowait - submit a bio for fire-and-forget
++ * @rw: whether to %READ or %WRITE, or maybe to %READA (read ahead)
++ * @bio: The &struct bio which describes the I/O
++ *
++ * Simple wrapper around submit_bio() that takes care of bio_put() on completion
++ */
++void submit_bio_nowait(struct bio *bio)
++{
++       bio->bi_end_io = submit_bio_nowait_endio;
++       bio->bi_opf |= REQ_SYNC;
++       submit_bio(bio);
++}
++EXPORT_SYMBOL(submit_bio_nowait);
++
+ /**
+  * bio_advance - increment/complete a bio by some number of bytes
+  * @bio:       bio to advance
+diff --git a/block/blk-flush.c b/block/blk-flush.c
+index 3c882cbc7541..b2dfcfe01ed7 100644
+--- a/block/blk-flush.c
++++ b/block/blk-flush.c
+@@ -530,6 +530,47 @@ int blkdev_issue_flush(struct block_device *bdev, gfp_t gfp_mask,
+ }
+ EXPORT_SYMBOL(blkdev_issue_flush);
+ 
++/**
++ * blkdev_issue_flush_nowait - queue a flush
++ * @bdev:      blockdev to issue flush for
++ * @gfp_mask:  memory allocation flags (for bio_alloc)
++ * @error_sector:      error sector
++ *
++ * Description:
++ *    Issue a flush for the block device in question. Caller can supply
++ *    room for storing the error offset in case of a flush error, if they
++ *    wish to. If WAIT flag is not passed then caller may check only what
++ *    request was pushed in some internal queue for later handling.
++ */
++void blkdev_issue_flush_nowait(struct block_device *bdev, gfp_t gfp_mask)
++{
++       struct request_queue *q;
++       struct bio *bio;
++
++       if (bdev->bd_disk == NULL)
++               return;
++
++       q = bdev_get_queue(bdev);
++       if (!q)
++               return;
++
++       /*
++        * some block devices may not have their queue correctly set up here
++        * (e.g. loop device without a backing file) and so issuing a flush
++        * here will panic. Ensure there is a request function before issuing
++        * the flush.
++        */
++       if (!q->make_request_fn)
++               return;
++
++       bio = bio_alloc(gfp_mask, 0);
++       bio->bi_bdev = bdev;
++       bio_set_op_attrs(bio, REQ_OP_WRITE, WRITE_FLUSH);
++
++       submit_bio_nowait(bio);
++}
++EXPORT_SYMBOL(blkdev_issue_flush_nowait);
++
+ struct blk_flush_queue *blk_alloc_flush_queue(struct request_queue *q,
+                int node, int cmd_size)
+ {
+diff --git a/fs/ext4/fsync.c b/fs/ext4/fsync.c
+index 88effb1053c7..a58966c18172 100644
+--- a/fs/ext4/fsync.c
++++ b/fs/ext4/fsync.c
+@@ -150,7 +150,11 @@ int ext4_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
+        ret = jbd2_complete_transaction(journal, commit_tid);
+        if (needs_barrier) {
+        issue_flush:
+-               err = blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL, NULL);
++               err = 0;
++               if (!blk_queue_nonrot(bdev_get_queue(inode->i_sb->s_bdev)))
++                       err = blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL, NULL);
++               else
++                       blkdev_issue_flush_nowait(inode->i_sb->s_bdev, GFP_KERNEL);
+                if (!ret)
+                        ret = err;
+        }
+diff --git a/include/linux/bio.h b/include/linux/bio.h
+index 97cb48f03dc7..3f055e6541e0 100644
+--- a/include/linux/bio.h
++++ b/include/linux/bio.h
+@@ -421,6 +421,7 @@ struct request_queue;
+ extern int bio_phys_segments(struct request_queue *, struct bio *);
+ 
+ extern int submit_bio_wait(struct bio *bio);
++extern void submit_bio_nowait(struct bio *bio);
+ extern void bio_advance(struct bio *, unsigned);
+ 
+ extern void bio_init(struct bio *);
+diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
+index f6a816129856..727684abf21e 100644
+--- a/include/linux/blkdev.h
++++ b/include/linux/blkdev.h
+@@ -1144,6 +1144,7 @@ static inline struct request *blk_map_queue_find_tag(struct blk_queue_tag *bqt,
+ #define BLKDEV_DISCARD_ZERO    (1 << 1)        /* must reliably zero data */
+ 
+ extern int blkdev_issue_flush(struct block_device *, gfp_t, sector_t *);
++extern void blkdev_issue_flush_nowait(struct block_device *, gfp_t);
+ extern int blkdev_issue_discard(struct block_device *bdev, sector_t sector,
+                sector_t nr_sects, gfp_t gfp_mask, unsigned long flags);
+ extern int __blkdev_issue_discard(struct block_device *bdev, sector_t sector,
+@@ -1745,6 +1746,10 @@ static inline int blkdev_issue_flush(struct block_device *bdev, gfp_t gfp_mask,
+        return 0;
+ }
+ 
++static inline void blkdev_issue_flush_nowait(struct block_device *bdev, gfp_t gfp_mask)
++{
++}
++
+ #endif /* CONFIG_BLOCK */
+ 
+ #endif
+-- 
+2.11.1
+
diff --git a/patches/boot_time_opt/0113-overload-on-wakeup.patch b/patches/boot_time_opt/0113-overload-on-wakeup.patch
new file mode 100644
index 0000000..a3a6bce
--- /dev/null
+++ b/patches/boot_time_opt/0113-overload-on-wakeup.patch
@@ -0,0 +1,43 @@
+From 9f25d18f45a8391488feb9783404f2f79b7090f4 Mon Sep 17 00:00:00 2001
+From: jplozi <jplozi@unice.fr>
+Date: Fri, 11 Mar 2016 15:18:06 +0100
+Subject: [PATCH 113/124] overload on wakeup
+
+source https://github.com/jplozi/wastedcores
+
+as an experiment, apply the learnings from the wasted-cores paper
+and see how the performance works out. With the data from this we should
+be able to work with Peter and the rest of the scheduler folks on
+a more permanent/elegant solution.
+---
+ kernel/sched/fair.c | 14 ++++++++++++++
+ 1 file changed, 14 insertions(+)
+
+diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
+index c242944f5cbd..5132c828161e 100644
+--- a/kernel/sched/fair.c
++++ b/kernel/sched/fair.c
+@@ -5638,6 +5638,20 @@ select_task_rq_fair(struct task_struct *p, int prev_cpu, int sd_flag, int wake_f
+        }
+ 
+        rcu_read_lock();
++
++       if (cpu_rq(prev_cpu)->nr_running) {
++               int _cpu;
++
++               for_each_online_cpu(_cpu) {
++                       if (!cpumask_test_cpu(_cpu, tsk_cpus_allowed(p)) ||
++                               cpu_rq(_cpu)->nr_running)
++                               continue;
++
++                       rcu_read_unlock();
++                       return _cpu;
++               }
++       }
++
+        for_each_domain(cpu, tmp) {
+                if (!(tmp->flags & SD_LOAD_BALANCE))
+                        break;
+-- 
+2.11.1
+
diff --git a/patches/boot_time_opt/0114-bootstats-add-printk-s-to-measure-boot-time-in-more-.patch b/patches/boot_time_opt/0114-bootstats-add-printk-s-to-measure-boot-time-in-more-.patch
new file mode 100644
index 0000000..c6bf036
--- /dev/null
+++ b/patches/boot_time_opt/0114-bootstats-add-printk-s-to-measure-boot-time-in-more-.patch
@@ -0,0 +1,83 @@
+From 3a1512b4ed3922f88936b95731aaff706e7286a9 Mon Sep 17 00:00:00 2001
+From: Arjan van de Ven <arjan@linux.intel.com>
+Date: Wed, 11 Feb 2015 16:05:23 -0600
+Subject: [PATCH 114/124] bootstats: add printk's to measure boot time in more
+ detail
+
+Few distro-tweaks to add printk's to visualize boot time better
+
+Author:    Arjan van de Ven <arjan@linux.intel.com>
+
+Signed-off-by: Miguel Bernal Marin <miguel.bernal.marin@linux.intel.com>
+---
+ arch/x86/kernel/alternative.c | 4 ++++
+ drivers/base/firmware_class.c | 2 ++
+ init/main.c                   | 2 +-
+ kernel/kmod.c                 | 2 ++
+ 4 files changed, 9 insertions(+), 1 deletion(-)
+
+diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
+index 5cb272a7a5a3..d28fb7aae4ce 100644
+--- a/arch/x86/kernel/alternative.c
++++ b/arch/x86/kernel/alternative.c
+@@ -626,7 +626,9 @@ void __init alternative_instructions(void)
+         * patching.
+         */
+ 
++       printk("clr: Applying alternatives\n");
+        apply_alternatives(__alt_instructions, __alt_instructions_end);
++       printk("clr: Applying alternatives done\n");
+ 
+ #ifdef CONFIG_SMP
+        /* Patch to UP if other cpus not imminent. */
+@@ -637,6 +639,8 @@ void __init alternative_instructions(void)
+                                            _text, _etext);
+        }
+ 
++       printk("clr: Applying alternatives smp done\n");
++
+        if (!uniproc_patched || num_possible_cpus() == 1)
+                free_init_pages("SMP alternatives",
+                                (unsigned long)__smp_locks,
+diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c
+index a95e1e572697..b29467031be6 100644
+--- a/drivers/base/firmware_class.c
++++ b/drivers/base/firmware_class.c
+@@ -1224,6 +1224,8 @@ request_firmware(const struct firmware **firmware_p, const char *name,
+ {
+        int ret;
+ 
++       printk("clr: request_firmware: %s\n", name);
++
+        /* Need to pin this module until return */
+        __module_get(THIS_MODULE);
+        ret = _request_firmware(firmware_p, name, device, NULL, 0,
+diff --git a/init/main.c b/init/main.c
+index 2858be732f6d..f1d8c3fdbf05 100644
+--- a/init/main.c
++++ b/init/main.c
+@@ -751,7 +751,7 @@ static int __init_or_module do_one_initcall_debug(initcall_t fn)
+        unsigned long long duration;
+        int ret;
+ 
+-       printk(KERN_DEBUG "calling  %pF @ %i\n", fn, task_pid_nr(current));
++       printk(KERN_DEBUG "calling  %pF @ %i\n", fn, raw_smp_processor_id());
+        calltime = ktime_get();
+        ret = fn();
+        rettime = ktime_get();
+diff --git a/kernel/kmod.c b/kernel/kmod.c
+index 0277d1216f80..dc5a6edd3895 100644
+--- a/kernel/kmod.c
++++ b/kernel/kmod.c
+@@ -76,6 +76,8 @@ static int call_modprobe(char *module_name, int wait)
+                NULL
+        };
+ 
++       printk("clr: call_modprobe: %s   %i \n", module_name, wait);
++
+        char **argv = kmalloc(sizeof(char *[5]), GFP_KERNEL);
+        if (!argv)
+                goto out;
+-- 
+2.11.1
+
diff --git a/patches/boot_time_opt/0115-fix-initcall-timestamps.patch b/patches/boot_time_opt/0115-fix-initcall-timestamps.patch
new file mode 100644
index 0000000..cdf2af1
--- /dev/null
+++ b/patches/boot_time_opt/0115-fix-initcall-timestamps.patch
@@ -0,0 +1,42 @@
+From 5b5ad2c9b9b555d20aeba1f895d0c9d1c2a77776 Mon Sep 17 00:00:00 2001
+From: Arjan van de Ven <arjan@linux.intel.com>
+Date: Thu, 2 Jun 2016 23:36:32 -0500
+Subject: [PATCH 115/124] fix initcall timestamps
+
+Print more finegrained initcall timings
+
+use the tsc instead of the jiffies clock for initcall_debug
+---
+ init/main.c | 12 ++++++------
+ 1 file changed, 6 insertions(+), 6 deletions(-)
+
+diff --git a/init/main.c b/init/main.c
+index f1d8c3fdbf05..8358cbe6ab13 100644
+--- a/init/main.c
++++ b/init/main.c
+@@ -747,16 +747,16 @@ __setup("initcall_blacklist=", initcall_blacklist);
+ 
+ static int __init_or_module do_one_initcall_debug(initcall_t fn)
+ {
+-       ktime_t calltime, delta, rettime;
++       unsigned long long calltime, delta, rettime;
+        unsigned long long duration;
+        int ret;
+ 
+-       printk(KERN_DEBUG "calling  %pF @ %i\n", fn, raw_smp_processor_id());
+-       calltime = ktime_get();
++       printk(KERN_DEBUG "calling  %pF @ %i\n", fn, task_pid_nr(current));
++       calltime = local_clock();
+        ret = fn();
+-       rettime = ktime_get();
+-       delta = ktime_sub(rettime, calltime);
+-       duration = (unsigned long long) ktime_to_ns(delta) >> 10;
++       rettime = local_clock();
++       delta = rettime - calltime;
++       duration = delta >> 10;
+        printk(KERN_DEBUG "initcall %pF returned %d after %lld usecs\n",
+                 fn, ret, duration);
+ 
+-- 
+2.11.1
+
diff --git a/patches/boot_time_opt/0116-smpboot-reuse-timer-calibration.patch b/patches/boot_time_opt/0116-smpboot-reuse-timer-calibration.patch
new file mode 100644
index 0000000..d1f71b5
--- /dev/null
+++ b/patches/boot_time_opt/0116-smpboot-reuse-timer-calibration.patch
@@ -0,0 +1,31 @@
+From 16104411cc5a7b20f310e3ecede85343ee6ce6b9 Mon Sep 17 00:00:00 2001
+From: Arjan van de Ven <arjan@linux.intel.com>
+Date: Wed, 11 Feb 2015 17:28:14 -0600
+Subject: [PATCH 116/124] smpboot: reuse timer calibration
+
+NO point recalibrating for known-constant tsc... saves 200ms+ of boot time.
+
+Author:    Arjan van de Ven <arjan@linux.intel.com>
+
+Signed-off-by: Miguel Bernal Marin <miguel.bernal.marin@linux.intel.com>
+---
+ arch/x86/kernel/tsc.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
+index 46b2f41f8b05..88553c1f21f1 100644
+--- a/arch/x86/kernel/tsc.c
++++ b/arch/x86/kernel/tsc.c
+@@ -1384,6 +1384,9 @@ unsigned long calibrate_delay_is_known(void)
+        if (!tsc_disabled && !cpu_has(&cpu_data(cpu), X86_FEATURE_CONSTANT_TSC))
+                return 0;
+ 
++       if (cpu != 0)
++               return cpu_data(0).loops_per_jiffy;
++
+        if (!mask)
+                return 0;
+ 
+-- 
+2.11.1
+
diff --git a/patches/boot_time_opt/0117-raid6-add-Kconfig-option-to-skip-raid6-benchmarking.patch b/patches/boot_time_opt/0117-raid6-add-Kconfig-option-to-skip-raid6-benchmarking.patch
new file mode 100644
index 0000000..978e09f
--- /dev/null
+++ b/patches/boot_time_opt/0117-raid6-add-Kconfig-option-to-skip-raid6-benchmarking.patch
@@ -0,0 +1,156 @@
+From fd1f55138c242bd9aeec374ff611064bdc89b359 Mon Sep 17 00:00:00 2001
+From: Jim Kukunas <james.t.kukunas@linux.intel.com>
+Date: Fri, 27 May 2016 09:26:51 -0400
+Subject: [PATCH 117/124] raid6: add Kconfig option to skip raid6 benchmarking
+
+Adds CONFIG_RAID6_FORCE_ALGO, which causes the kernel to not benchmark
+each raid recovery and syndrome generation algorithm, and instead use
+the version selected via Kconfig (CONFIG_RAID6_FORCE_{INT,SSSE3,AVX2}).
+In the case, the selected algorithm is not supported by the processor at
+runtime, a fallback is used.
+
+Signed-off-by: Jim Kukunas <james.t.kukunas@linux.intel.com>
+---
+ lib/Kconfig       |  3 +--
+ lib/raid6/Kconfig | 38 ++++++++++++++++++++++++++++++++++++
+ lib/raid6/algos.c | 58 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
+ 3 files changed, 97 insertions(+), 2 deletions(-)
+ create mode 100644 lib/raid6/Kconfig
+
+diff --git a/lib/Kconfig b/lib/Kconfig
+index 260a80e313b9..b3efd21db2fd 100644
+--- a/lib/Kconfig
++++ b/lib/Kconfig
+@@ -7,8 +7,7 @@ config BINARY_PRINTF
+ 
+ menu "Library routines"
+ 
+-config RAID6_PQ
+-       tristate
++source "lib/raid6/Kconfig"
+ 
+ config BITREVERSE
+        tristate
+diff --git a/lib/raid6/Kconfig b/lib/raid6/Kconfig
+new file mode 100644
+index 000000000000..d881d6be89bb
+--- /dev/null
++++ b/lib/raid6/Kconfig
+@@ -0,0 +1,38 @@
++menu "RAID 6"
++
++config RAID6_PQ
++       tristate
++
++config RAID6_FORCE_ALGO
++       bool "Always use specified recovery algorithm"
++       default n
++       depends on RAID6_PQ
++       help
++               If this option is not set, on every boot the kernel will
++               benchmark each optimized version of the RAID6 recovery and
++               syndrome generation algorithms and will select the one that
++               performs best. Microbenchmarking each version negatively
++               affects boot time.
++
++               Enabling this option skips the benchmark at boot, and
++               instead always uses the algorithm selected. The only exception
++               is if the selected algorithm relies on a cpu feature not
++               supported at runtime. In this case, one of the lower performance
++               fallbacks are used.
++
++choice
++       prompt "RAID6 Recovery Algorithm"
++       default RAID6_FORCE_INT
++       depends on RAID6_FORCE_ALGO
++       ---help---
++               Select the RAID6 recovery algorithm to unconditionally use
++
++       config RAID6_FORCE_INT
++               bool "Reference Implementation"
++       config RAID6_FORCE_SSSE3
++               bool "SSSE3"
++       config RAID6_FORCE_AVX2
++               bool "AVX2"
++endchoice
++
++endmenu
+diff --git a/lib/raid6/algos.c b/lib/raid6/algos.c
+index 7857049fd7d3..29332d2a04a5 100644
+--- a/lib/raid6/algos.c
++++ b/lib/raid6/algos.c
+@@ -125,6 +125,63 @@ const struct raid6_recov_calls *const raid6_recov_algos[] = {
+ #define time_before(x, y) ((x) < (y))
+ #endif
+ 
++#ifdef CONFIG_RAID6_FORCE_ALGO
++/* TODO don't compile in algos that will never be used */
++int __init raid6_select_algo(void)
++{
++       const struct raid6_recov_calls *recov_fallback = &raid6_recov_intx1;
++       const struct raid6_recov_calls *recov_algo;
++       const struct raid6_calls *gen_fallback;
++       const struct raid6_calls *gen_algo;
++
++#if defined(__i386__)
++       gen_fallback = &raid6_intx32;
++#elif defined(__x86_64__)
++       gen_fallback = &raid6_sse2x2;
++#else
++# error "TODO"
++#endif
++
++#if defined(CONFIG_RAID6_FORCE_INT)
++       recov_algo = &raid6_recov_intx1;
++       gen_algo = &raid6_intx32;
++
++#elif defined(CONFIG_RAID6_FORCE_SSSE3)
++       recov_algo = &raid6_recov_ssse3;
++#if defined(__i386__)
++       gen_algo = &raid6_sse2x2;
++#else
++       gen_algo = &raid6_sse2x4;
++#endif
++
++#elif defined(CONFIG_RAID6_FORCE_AVX2)
++       recov_algo = &raid6_recov_avx2;
++
++#if defined(__i386__)
++       gen_algo = &raid6_avx2x2;
++#else
++       gen_algo = &raid6_avx2x4;
++#endif
++
++#else
++#error "RAID6 Forced Recov Algo: Unsupported selection"
++#endif
++
++       if (recov_algo->valid != NULL && recov_algo->valid() == 0)
++               recov_algo = recov_fallback;
++
++       pr_info("raid6: Forced to use recovery algorithm %s\n", recov_algo->name);
++
++       raid6_2data_recov = recov_algo->data2;
++       raid6_datap_recov = recov_algo->datap;
++
++       pr_info("raid6: Forced gen() algo %s\n", gen_algo->name);
++
++       raid6_call = *gen_algo;
++
++       return gen_algo && recov_algo ? 0 : -EINVAL;
++}
++#else
+ static inline const struct raid6_recov_calls *raid6_choose_recov(void)
+ {
+        const struct raid6_recov_calls *const *algo;
+@@ -256,6 +313,7 @@ int __init raid6_select_algo(void)
+ 
+        return gen_best && rec_best ? 0 : -EINVAL;
+ }
++#endif
+ 
+ static void raid6_exit(void)
+ {
+-- 
+2.11.1
+
diff --git a/patches/boot_time_opt/0118-Initialize-ata-before-graphics.patch b/patches/boot_time_opt/0118-Initialize-ata-before-graphics.patch
new file mode 100644
index 0000000..70e07c8
--- /dev/null
+++ b/patches/boot_time_opt/0118-Initialize-ata-before-graphics.patch
@@ -0,0 +1,47 @@
+From fbc1ab7c18a9c960a0bff293a93620d581658f8d Mon Sep 17 00:00:00 2001
+From: Arjan van de Ven <arjan@linux.intel.com>
+Date: Thu, 2 Jun 2016 23:36:32 -0500
+Subject: [PATCH 118/124] Initialize ata before graphics
+
+ATA init is the long pole in the boot process, and its asynchronous.
+move the graphics init after it so that ata and graphics initialize
+in parallel
+---
+ drivers/Makefile | 11 ++++++-----
+ 1 file changed, 6 insertions(+), 5 deletions(-)
+
+diff --git a/drivers/Makefile b/drivers/Makefile
+index 194d20bee7dc..2785e4c6b30f 100644
+--- a/drivers/Makefile
++++ b/drivers/Makefile
+@@ -55,14 +55,9 @@ obj-y                                += char/
+ # iommu/ comes before gpu as gpu are using iommu controllers
+ obj-$(CONFIG_IOMMU_SUPPORT)    += iommu/
+ 
+-# gpu/ comes after char for AGP vs DRM startup and after iommu
+-obj-y                          += gpu/
+ 
+ obj-$(CONFIG_CONNECTOR)                += connector/
+ 
+-# i810fb and intelfb depend on char/agp/
+-obj-$(CONFIG_FB_I810)           += video/fbdev/i810/
+-obj-$(CONFIG_FB_INTEL)          += video/fbdev/intelfb/
+ 
+ obj-$(CONFIG_PARPORT)          += parport/
+ obj-$(CONFIG_NVM)              += lightnvm/
+@@ -76,6 +71,12 @@ obj-$(CONFIG_IDE)            += ide/
+ obj-$(CONFIG_SCSI)             += scsi/
+ obj-y                          += nvme/
+ obj-$(CONFIG_ATA)              += ata/
++
++# gpu/ comes after char for AGP vs DRM startup and after iommu
++obj-y                          += gpu/
++# i810fb and intelfb depend on char/agp/
++obj-$(CONFIG_FB_I810)           += video/fbdev/i810/
++obj-$(CONFIG_FB_INTEL)          += video/fbdev/intelfb/
+ obj-$(CONFIG_TARGET_CORE)      += target/
+ obj-$(CONFIG_MTD)              += mtd/
+ obj-$(CONFIG_SPI)              += spi/
+-- 
+2.11.1
+
diff --git a/patches/boot_time_opt/0119-reduce-e1000e-boot-time-by-tightening-sleep-ranges.patch b/patches/boot_time_opt/0119-reduce-e1000e-boot-time-by-tightening-sleep-ranges.patch
new file mode 100644
index 0000000..a068afb
--- /dev/null
+++ b/patches/boot_time_opt/0119-reduce-e1000e-boot-time-by-tightening-sleep-ranges.patch
@@ -0,0 +1,311 @@
+From d9390cb702de5cbef64f893efd2344c4f58dae82 Mon Sep 17 00:00:00 2001
+From: Arjan van de Ven <arjan@linux.intel.com>
+Date: Mon, 25 Jul 2016 06:44:34 -0500
+Subject: [PATCH 119/124] reduce e1000e boot time by tightening sleep ranges
+
+The e1000e driver is a great user of the usleep_range() API,
+and has any nice ranges that in principle help power management.
+
+However the ranges that are used only during system startup are
+very long (and can add easily 100 msec to the boot time) while
+the power savings of such long ranges is irrelevant due to the
+one-off, boot only, nature of these functions.
+
+This patch shrinks some of the longest ranges to be shorter
+(while still using a power friendly 1 msec range); this saves
+100msec+ of boot time on my BDW NUCs
+
+Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
+---
+ drivers/net/ethernet/intel/e1000e/80003es2lan.c |  2 +-
+ drivers/net/ethernet/intel/e1000e/82571.c       |  2 +-
+ drivers/net/ethernet/intel/e1000e/ethtool.c     | 14 +++++++-------
+ drivers/net/ethernet/intel/e1000e/ich8lan.c     | 20 ++++++++++----------
+ drivers/net/ethernet/intel/e1000e/mac.c         |  2 +-
+ drivers/net/ethernet/intel/e1000e/netdev.c      | 14 +++++++-------
+ drivers/net/ethernet/intel/e1000e/nvm.c         |  2 +-
+ 7 files changed, 28 insertions(+), 28 deletions(-)
+
+diff --git a/drivers/net/ethernet/intel/e1000e/80003es2lan.c b/drivers/net/ethernet/intel/e1000e/80003es2lan.c
+index cd391376036c..b5759899eeb8 100644
+--- a/drivers/net/ethernet/intel/e1000e/80003es2lan.c
++++ b/drivers/net/ethernet/intel/e1000e/80003es2lan.c
+@@ -698,7 +698,7 @@ static s32 e1000_reset_hw_80003es2lan(struct e1000_hw *hw)
+        ew32(TCTL, E1000_TCTL_PSP);
+        e1e_flush();
+ 
+-       usleep_range(10000, 20000);
++       usleep_range(10000, 11000);
+ 
+        ctrl = er32(CTRL);
+ 
+diff --git a/drivers/net/ethernet/intel/e1000e/82571.c b/drivers/net/ethernet/intel/e1000e/82571.c
+index 6b03c8553e59..d31145269dd9 100644
+--- a/drivers/net/ethernet/intel/e1000e/82571.c
++++ b/drivers/net/ethernet/intel/e1000e/82571.c
+@@ -977,7 +977,7 @@ static s32 e1000_reset_hw_82571(struct e1000_hw *hw)
+        ew32(TCTL, tctl);
+        e1e_flush();
+ 
+-       usleep_range(10000, 20000);
++       usleep_range(10000, 11000);
+ 
+        /* Must acquire the MDIO ownership before MAC reset.
+         * Ownership defaults to firmware after a reset.
+diff --git a/drivers/net/ethernet/intel/e1000e/ethtool.c b/drivers/net/ethernet/intel/e1000e/ethtool.c
+index 7aff68a4a4df..7cb689bd41f8 100644
+--- a/drivers/net/ethernet/intel/e1000e/ethtool.c
++++ b/drivers/net/ethernet/intel/e1000e/ethtool.c
+@@ -1023,7 +1023,7 @@ static int e1000_intr_test(struct e1000_adapter *adapter, u64 *data)
+        /* Disable all the interrupts */
+        ew32(IMC, 0xFFFFFFFF);
+        e1e_flush();
+-       usleep_range(10000, 20000);
++       usleep_range(10000, 11000);
+ 
+        /* Test each interrupt */
+        for (i = 0; i < 10; i++) {
+@@ -1055,7 +1055,7 @@ static int e1000_intr_test(struct e1000_adapter *adapter, u64 *data)
+                        ew32(IMC, mask);
+                        ew32(ICS, mask);
+                        e1e_flush();
+-                       usleep_range(10000, 20000);
++                       usleep_range(10000, 11000);
+ 
+                        if (adapter->test_icr & mask) {
+                                *data = 3;
+@@ -1073,7 +1073,7 @@ static int e1000_intr_test(struct e1000_adapter *adapter, u64 *data)
+                ew32(IMS, mask);
+                ew32(ICS, mask);
+                e1e_flush();
+-               usleep_range(10000, 20000);
++               usleep_range(10000, 11000);
+ 
+                if (!(adapter->test_icr & mask)) {
+                        *data = 4;
+@@ -1091,7 +1091,7 @@ static int e1000_intr_test(struct e1000_adapter *adapter, u64 *data)
+                        ew32(IMC, ~mask & 0x00007FFF);
+                        ew32(ICS, ~mask & 0x00007FFF);
+                        e1e_flush();
+-                       usleep_range(10000, 20000);
++                       usleep_range(10000, 11000);
+ 
+                        if (adapter->test_icr) {
+                                *data = 5;
+@@ -1103,7 +1103,7 @@ static int e1000_intr_test(struct e1000_adapter *adapter, u64 *data)
+        /* Disable all the interrupts */
+        ew32(IMC, 0xFFFFFFFF);
+        e1e_flush();
+-       usleep_range(10000, 20000);
++       usleep_range(10000, 11000);
+ 
+        /* Unhook test interrupt handler */
+        free_irq(irq, netdev);
+@@ -1479,7 +1479,7 @@ static int e1000_set_82571_fiber_loopback(struct e1000_adapter *adapter)
+         */
+        ew32(SCTL, E1000_SCTL_ENABLE_SERDES_LOOPBACK);
+        e1e_flush();
+-       usleep_range(10000, 20000);
++       usleep_range(10000, 11000);
+ 
+        return 0;
+ }
+@@ -1592,7 +1592,7 @@ static void e1000_loopback_cleanup(struct e1000_adapter *adapter)
+                    hw->phy.media_type == e1000_media_type_internal_serdes) {
+                        ew32(SCTL, E1000_SCTL_DISABLE_SERDES_LOOPBACK);
+                        e1e_flush();
+-                       usleep_range(10000, 20000);
++                       usleep_range(10000, 11000);
+                        break;
+                }
+                /* Fall Through */
+diff --git a/drivers/net/ethernet/intel/e1000e/ich8lan.c b/drivers/net/ethernet/intel/e1000e/ich8lan.c
+index f3aaca743ea3..bef75cec259f 100644
+--- a/drivers/net/ethernet/intel/e1000e/ich8lan.c
++++ b/drivers/net/ethernet/intel/e1000e/ich8lan.c
+@@ -289,7 +289,7 @@ static void e1000_toggle_lanphypc_pch_lpt(struct e1000_hw *hw)
+                u16 count = 20;
+ 
+                do {
+-                       usleep_range(5000, 10000);
++                       usleep_range(5000, 6000);
+                } while (!(er32(CTRL_EXT) & E1000_CTRL_EXT_LPCD) && count--);
+ 
+                msleep(30);
+@@ -422,7 +422,7 @@ static s32 e1000_init_phy_workarounds_pchlan(struct e1000_hw *hw)
+        /* Ungate automatic PHY configuration on non-managed 82579 */
+        if ((hw->mac.type == e1000_pch2lan) &&
+            !(fwsm & E1000_ICH_FWSM_FW_VALID)) {
+-               usleep_range(10000, 20000);
++               usleep_range(10000, 11000);
+                e1000_gate_hw_phy_config_ich8lan(hw, false);
+        }
+ 
+@@ -547,7 +547,7 @@ static s32 e1000_init_phy_params_ich8lan(struct e1000_hw *hw)
+        phy->id = 0;
+        while ((e1000_phy_unknown == e1000e_get_phy_type_from_id(phy->id)) &&
+               (i++ < 100)) {
+-               usleep_range(1000, 2000);
++               usleep_range(1000, 1100);
+                ret_val = e1000e_get_phy_id(hw);
+                if (ret_val)
+                        return ret_val;
+@@ -1259,7 +1259,7 @@ static s32 e1000_disable_ulp_lpt_lp(struct e1000_hw *hw, bool force)
+                                goto out;
+                        }
+ 
+-                       usleep_range(10000, 20000);
++                       usleep_range(10000, 11000);
+                }
+                e_dbg("ULP_CONFIG_DONE cleared after %dmsec\n", i * 10);
+ 
+@@ -2011,7 +2011,7 @@ static s32 e1000_check_reset_block_ich8lan(struct e1000_hw *hw)
+ 
+        while ((blocked = !(er32(FWSM) & E1000_ICH_FWSM_RSPCIPHY)) &&
+               (i++ < 30))
+-               usleep_range(10000, 20000);
++               usleep_range(10000, 11000);
+        return blocked ? E1000_BLK_PHY_RESET : 0;
+ }
+ 
+@@ -2827,7 +2827,7 @@ static s32 e1000_post_phy_reset_ich8lan(struct e1000_hw *hw)
+                return 0;
+ 
+        /* Allow time for h/w to get to quiescent state after reset */
+-       usleep_range(10000, 20000);
++       usleep_range(10000, 11000);
+ 
+        /* Perform any necessary post-reset workarounds */
+        switch (hw->mac.type) {
+@@ -2863,7 +2863,7 @@ static s32 e1000_post_phy_reset_ich8lan(struct e1000_hw *hw)
+        if (hw->mac.type == e1000_pch2lan) {
+                /* Ungate automatic PHY configuration on non-managed 82579 */
+                if (!(er32(FWSM) & E1000_ICH_FWSM_FW_VALID)) {
+-                       usleep_range(10000, 20000);
++                       usleep_range(10000, 11000);
+                        e1000_gate_hw_phy_config_ich8lan(hw, false);
+                }
+ 
+@@ -3884,7 +3884,7 @@ static s32 e1000_update_nvm_checksum_spt(struct e1000_hw *hw)
+         */
+        if (!ret_val) {
+                nvm->ops.reload(hw);
+-               usleep_range(10000, 20000);
++               usleep_range(10000, 11000);
+        }
+ 
+ out:
+@@ -4035,7 +4035,7 @@ static s32 e1000_update_nvm_checksum_ich8lan(struct e1000_hw *hw)
+         */
+        if (!ret_val) {
+                nvm->ops.reload(hw);
+-               usleep_range(10000, 20000);
++               usleep_range(10000, 11000);
+        }
+ 
+ out:
+@@ -4658,7 +4658,7 @@ static s32 e1000_reset_hw_ich8lan(struct e1000_hw *hw)
+        ew32(TCTL, E1000_TCTL_PSP);
+        e1e_flush();
+ 
+-       usleep_range(10000, 20000);
++       usleep_range(10000, 11000);
+ 
+        /* Workaround for ICH8 bit corruption issue in FIFO memory */
+        if (hw->mac.type == e1000_ich8lan) {
+diff --git a/drivers/net/ethernet/intel/e1000e/mac.c b/drivers/net/ethernet/intel/e1000e/mac.c
+index b322011ec282..eecbf7a12735 100644
+--- a/drivers/net/ethernet/intel/e1000e/mac.c
++++ b/drivers/net/ethernet/intel/e1000e/mac.c
+@@ -815,7 +815,7 @@ static s32 e1000_poll_fiber_serdes_link_generic(struct e1000_hw *hw)
+         * milliseconds even if the other end is doing it in SW).
+         */
+        for (i = 0; i < FIBER_LINK_UP_LIMIT; i++) {
+-               usleep_range(10000, 20000);
++               usleep_range(10000, 11000);
+                status = er32(STATUS);
+                if (status & E1000_STATUS_LU)
+                        break;
+diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
+index 7017281ba2dc..7d68d694ed9e 100644
+--- a/drivers/net/ethernet/intel/e1000e/netdev.c
++++ b/drivers/net/ethernet/intel/e1000e/netdev.c
+@@ -3206,7 +3206,7 @@ static void e1000_configure_rx(struct e1000_adapter *adapter)
+        if (!(adapter->flags2 & FLAG2_NO_DISABLE_RX))
+                ew32(RCTL, rctl & ~E1000_RCTL_EN);
+        e1e_flush();
+-       usleep_range(10000, 20000);
++       usleep_range(10000, 11000);
+ 
+        if (adapter->flags2 & FLAG2_DMA_BURST) {
+                /* set the writeback threshold (only takes effect if the RDTR
+@@ -4258,7 +4258,7 @@ void e1000e_down(struct e1000_adapter *adapter, bool reset)
+ 
+        /* flush both disables and wait for them to finish */
+        e1e_flush();
+-       usleep_range(10000, 20000);
++       usleep_range(10000, 11000);
+ 
+        e1000_irq_disable(adapter);
+ 
+@@ -4296,7 +4296,7 @@ void e1000e_reinit_locked(struct e1000_adapter *adapter)
+ {
+        might_sleep();
+        while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
+-               usleep_range(1000, 2000);
++               usleep_range(1000, 1100);
+        e1000e_down(adapter, true);
+        e1000e_up(adapter);
+        clear_bit(__E1000_RESETTING, &adapter->state);
+@@ -4671,7 +4671,7 @@ int e1000e_close(struct net_device *netdev)
+        int count = E1000_CHECK_RESET_COUNT;
+ 
+        while (test_bit(__E1000_RESETTING, &adapter->state) && count--)
+-               usleep_range(10000, 20000);
++               usleep_range(10000, 11000);
+ 
+        WARN_ON(test_bit(__E1000_RESETTING, &adapter->state));
+ 
+@@ -5996,7 +5996,7 @@ static int e1000_change_mtu(struct net_device *netdev, int new_mtu)
+        }
+ 
+        while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
+-               usleep_range(1000, 2000);
++               usleep_range(1000, 1100);
+        /* e1000e_down -> e1000e_reset dependent on max_frame_size & mtu */
+        adapter->max_frame_size = max_frame;
+        e_info("changing MTU from %d to %d\n", netdev->mtu, new_mtu);
+@@ -6276,7 +6276,7 @@ static int e1000e_pm_freeze(struct device *dev)
+                int count = E1000_CHECK_RESET_COUNT;
+ 
+                while (test_bit(__E1000_RESETTING, &adapter->state) && count--)
+-                       usleep_range(10000, 20000);
++                       usleep_range(10000, 11000);
+ 
+                WARN_ON(test_bit(__E1000_RESETTING, &adapter->state));
+ 
+@@ -6687,7 +6687,7 @@ static int e1000e_pm_runtime_suspend(struct device *dev)
+                int count = E1000_CHECK_RESET_COUNT;
+ 
+                while (test_bit(__E1000_RESETTING, &adapter->state) && count--)
+-                       usleep_range(10000, 20000);
++                       usleep_range(10000, 11000);
+ 
+                WARN_ON(test_bit(__E1000_RESETTING, &adapter->state));
+ 
+diff --git a/drivers/net/ethernet/intel/e1000e/nvm.c b/drivers/net/ethernet/intel/e1000e/nvm.c
+index 2efd80dfd88e..38f7c8fb3061 100644
+--- a/drivers/net/ethernet/intel/e1000e/nvm.c
++++ b/drivers/net/ethernet/intel/e1000e/nvm.c
+@@ -410,7 +410,7 @@ s32 e1000e_write_nvm_spi(struct e1000_hw *hw, u16 offset, u16 words, u16 *data)
+                                break;
+                        }
+                }
+-               usleep_range(10000, 20000);
++               usleep_range(10000, 11000);
+                nvm->ops.release(hw);
+        }
+ 
+-- 
+2.11.1
+
diff --git a/patches/boot_time_opt/0120-give-rdrand-some-credit.patch b/patches/boot_time_opt/0120-give-rdrand-some-credit.patch
new file mode 100644
index 0000000..4b1669c
--- /dev/null
+++ b/patches/boot_time_opt/0120-give-rdrand-some-credit.patch
@@ -0,0 +1,30 @@
+From 5cc978db25b2c92707f68b15098ac39901fb5aac Mon Sep 17 00:00:00 2001
+From: Arjan van de Ven <arjan@linux.intel.com>
+Date: Fri, 29 Jul 2016 19:10:52 +0000
+Subject: [PATCH 120/124] give rdrand some credit
+
+try to credit rdrand/rdseed with some entropy
+
+In VMs but even modern hardware, we're super starved for entropy, and while we can
+and do wear a tin foil hat, it's very hard to argue that
+rdrand and rdtsc add zero entropy.
+---
+ drivers/char/random.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/drivers/char/random.c b/drivers/char/random.c
+index d6876d506220..fca09af81b2c 100644
+--- a/drivers/char/random.c
++++ b/drivers/char/random.c
+@@ -1638,6 +1638,8 @@ static void init_std_data(struct entropy_store *r)
+                if (!arch_get_random_seed_long(&rv) &&
+                    !arch_get_random_long(&rv))
+                        rv = random_get_entropy();
++               else
++                       credit_entropy_bits(r, 1);
+                mix_pool_bytes(r, &rv, sizeof(rv));
+        }
+        mix_pool_bytes(r, utsname(), sizeof(*(utsname())));
+-- 
+2.11.1
+
diff --git a/patches/boot_time_opt/0121-e1000e-change-default-policy.patch b/patches/boot_time_opt/0121-e1000e-change-default-policy.patch
new file mode 100644
index 0000000..bf3e13d
--- /dev/null
+++ b/patches/boot_time_opt/0121-e1000e-change-default-policy.patch
@@ -0,0 +1,27 @@
+From 5b4707fc2aa8c49aa18a60136880bf05a3e29071 Mon Sep 17 00:00:00 2001
+From: Arjan van de Ven <arjan@linux.intel.com>
+Date: Sat, 10 Dec 2016 14:29:52 +0000
+Subject: [PATCH 121/124] e1000e: change default policy
+
+change the default irq mitigation policy for e1000e to be
+more HPC/cluster friendly
+---
+ drivers/net/ethernet/intel/e1000e/param.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/drivers/net/ethernet/intel/e1000e/param.c b/drivers/net/ethernet/intel/e1000e/param.c
+index 6d8c39abee16..ef1122ad3b98 100644
+--- a/drivers/net/ethernet/intel/e1000e/param.c
++++ b/drivers/net/ethernet/intel/e1000e/param.c
+@@ -92,7 +92,7 @@ E1000_PARAM(RxAbsIntDelay, "Receive Absolute Interrupt Delay");
+  * Valid Range: 100-100000 or one of: 0=off, 1=dynamic, 3=dynamic conservative
+  */
+ E1000_PARAM(InterruptThrottleRate, "Interrupt Throttling Rate");
+-#define DEFAULT_ITR 3
++#define DEFAULT_ITR 1
+ #define MAX_ITR 100000
+ #define MIN_ITR 100
+ 
+-- 
+2.11.1
+
diff --git a/patches/boot_time_opt/0122-ipv4-tcp-allow-the-memory-tuning-for-tcp-to-go-a-lit.patch b/patches/boot_time_opt/0122-ipv4-tcp-allow-the-memory-tuning-for-tcp-to-go-a-lit.patch
new file mode 100644
index 0000000..eb44cec
--- /dev/null
+++ b/patches/boot_time_opt/0122-ipv4-tcp-allow-the-memory-tuning-for-tcp-to-go-a-lit.patch
@@ -0,0 +1,28 @@
+From 5cf7ba4ba9c9d770aad9e52deaa3730f259df9f1 Mon Sep 17 00:00:00 2001
+From: Arjan van de Ven <arjan@linux.intel.com>
+Date: Fri, 6 Jan 2017 15:34:09 +0000
+Subject: [PATCH 122/124] ipv4/tcp: allow the memory tuning for tcp to go a
+ little bigger than default
+
+---
+ net/ipv4/tcp.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
+index 6a90a0e130dc..32e43ce7c60e 100644
+--- a/net/ipv4/tcp.c
++++ b/net/ipv4/tcp.c
+@@ -3341,8 +3341,8 @@ void __init tcp_init(void)
+        tcp_init_mem();
+        /* Set per-socket limits to no more than 1/128 the pressure threshold */
+        limit = nr_free_buffer_pages() << (PAGE_SHIFT - 7);
+-       max_wshare = min(4UL*1024*1024, limit);
+-       max_rshare = min(6UL*1024*1024, limit);
++       max_wshare = min(16UL*1024*1024, limit);
++       max_rshare = min(16UL*1024*1024, limit);
+ 
+        sysctl_tcp_wmem[0] = SK_MEM_QUANTUM;
+        sysctl_tcp_wmem[1] = 16*1024;
+-- 
+2.11.1
+
diff --git a/patches/boot_time_opt/0123-igb-no-runtime-pm-to-fix-reboot-oops.patch b/patches/boot_time_opt/0123-igb-no-runtime-pm-to-fix-reboot-oops.patch
new file mode 100644
index 0000000..ce4964e
--- /dev/null
+++ b/patches/boot_time_opt/0123-igb-no-runtime-pm-to-fix-reboot-oops.patch
@@ -0,0 +1,27 @@
+From 10f0c995ce6aaf6b3ffa78377f1a12ad0477057a Mon Sep 17 00:00:00 2001
+From: Arjan van de Ven <arjan@linux.intel.com>
+Date: Thu, 12 Jan 2017 18:17:14 +0000
+Subject: [PATCH 123/124] igb: no runtime pm to fix reboot oops
+
+Causes oops on reboot due to a race between runtime resume and shutdown
+---
+ drivers/net/ethernet/intel/igb/igb_main.c | 3 ---
+ 1 file changed, 3 deletions(-)
+
+diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
+index 9affd7c198bd..8ade77e75b36 100644
+--- a/drivers/net/ethernet/intel/igb/igb_main.c
++++ b/drivers/net/ethernet/intel/igb/igb_main.c
+@@ -238,9 +238,6 @@ static struct pci_driver igb_driver = {
+        .id_table = igb_pci_tbl,
+        .probe    = igb_probe,
+        .remove   = igb_remove,
+-#ifdef CONFIG_PM
+-       .driver.pm = &igb_pm_ops,
+-#endif
+        .shutdown = igb_shutdown,
+        .sriov_configure = igb_pci_sriov_configure,
+        .err_handler = &igb_err_handler
+-- 
+2.11.1
+
diff --git a/patches/boot_time_opt/0124-tweak-perfbias.patch b/patches/boot_time_opt/0124-tweak-perfbias.patch
new file mode 100644
index 0000000..56a2865
--- /dev/null
+++ b/patches/boot_time_opt/0124-tweak-perfbias.patch
@@ -0,0 +1,32 @@
+From 03e2c414a860264511dae5bbfc6d7e62b8b94f0f Mon Sep 17 00:00:00 2001
+From: Arjan van de Ven <arjan@linux.intel.com>
+Date: Sun, 22 Jan 2017 18:51:13 +0000
+Subject: [PATCH 124/124] tweak perfbias
+
+---
+ arch/x86/kernel/cpu/intel.c | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
+index fcd484d2bb03..13ae40f10bd4 100644
+--- a/arch/x86/kernel/cpu/intel.c
++++ b/arch/x86/kernel/cpu/intel.c
+@@ -434,12 +434,12 @@ static void init_intel_energy_perf(struct cpuinfo_x86 *c)
+                return;
+ 
+        rdmsrl(MSR_IA32_ENERGY_PERF_BIAS, epb);
+-       if ((epb & 0xF) != ENERGY_PERF_BIAS_PERFORMANCE)
++       if ((epb & 0xF) >= ENERGY_PERF_BIAS_NORMAL)
+                return;
+ 
+-       pr_warn_once("ENERGY_PERF_BIAS: Set to 'normal', was 'performance'\n");
++       pr_warn_once("ENERGY_PERF_BIAS: Set to 'performance', was 'normal'\n");
+        pr_warn_once("ENERGY_PERF_BIAS: View and update with x86_energy_perf_policy(8)\n");
+-       epb = (epb & ~0xF) | ENERGY_PERF_BIAS_NORMAL;
++       epb = (epb & ~0xF) | ENERGY_PERF_BIAS_PERFORMANCE;
+        wrmsrl(MSR_IA32_ENERGY_PERF_BIAS, epb);
+ }
+ 
+-- 
+2.11.1
+
diff --git a/patches/boot_time_opt/0125-e1000e-increase-pause-and-refresh-time.patch b/patches/boot_time_opt/0125-e1000e-increase-pause-and-refresh-time.patch
new file mode 100644
index 0000000..1c50e74
--- /dev/null
+++ b/patches/boot_time_opt/0125-e1000e-increase-pause-and-refresh-time.patch
@@ -0,0 +1,33 @@
+From 6730c1ae12a567d56092d15540d2f971be95b936 Mon Sep 17 00:00:00 2001
+From: Miguel Bernal Marin <miguel.bernal.marin@linux.intel.com>
+Date: Mon, 27 Mar 2017 16:01:56 -0600
+Subject: [PATCH] e1000e: increase pause and refresh time
+
+Suggested-by:  Tim Pepper <timothy.c.pepper@linux.intel.com>
+Signed-off-by: Miguel Bernal Marin <miguel.bernal.marin@linux.intel.com>
+---
+ drivers/net/ethernet/intel/e1000e/netdev.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
+index 7d68d694ed9e..1db390a52656 100644
+--- a/drivers/net/ethernet/intel/e1000e/netdev.c
++++ b/drivers/net/ethernet/intel/e1000e/netdev.c
+@@ -4032,12 +4032,12 @@ void e1000e_reset(struct e1000_adapter *adapter)
+        case e1000_pch2lan:
+        case e1000_pch_lpt:
+        case e1000_pch_spt:
+-               fc->refresh_time = 0x0400;
++               fc->refresh_time = 0xFFFF;
++               fc->pause_time = 0xFFFF;
+ 
+                if (adapter->netdev->mtu <= ETH_DATA_LEN) {
+                        fc->high_water = 0x05C20;
+                        fc->low_water = 0x05048;
+-                       fc->pause_time = 0x0650;
+                        break;
+                }
+ 
+-- 
+2.12.2
+
diff --git a/patches/boot_time_opt/0151-mm-Export-do_madvise.patch b/patches/boot_time_opt/0151-mm-Export-do_madvise.patch
new file mode 100644
index 0000000..a6dbff7
--- /dev/null
+++ b/patches/boot_time_opt/0151-mm-Export-do_madvise.patch
@@ -0,0 +1,84 @@
+From 99b4cdcce43ad0f706120bef26fef8c628c572cf Mon Sep 17 00:00:00 2001
+From: Sebastien Boeuf <sebastien.boeuf@intel.com>
+Date: Mon, 23 Jan 2017 15:03:52 -0800
+Subject: [PATCH 151/154] mm: Export do_madvise()
+
+Combined with some interesting flags madvise() system call
+allows to free memory more smartly and more efficiently than
+we could do with a simple free(). The issue is that is not
+available for kernel modules that could need it.
+
+In order to solve this lack of support, this patch exports
+do_madvise() so as to make it available to the entire kernel.
+The already existing madvise() system call is unchanged and
+now relies on this new do_madvise() function.
+
+Suggested-by: Arjan van de Ven <arjan.van.de.ven@intel.com>
+Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
+---
+ include/linux/mm.h |  2 ++
+ mm/madvise.c       | 25 +++++++++++++++++++++----
+ 2 files changed, 23 insertions(+), 4 deletions(-)
+
+diff --git a/include/linux/mm.h b/include/linux/mm.h
+index 0b5b2e4df14e..925ec25f99a8 100644
+--- a/include/linux/mm.h
++++ b/include/linux/mm.h
+@@ -2450,5 +2450,7 @@ void __init setup_nr_node_ids(void);
+ static inline void setup_nr_node_ids(void) {}
+ #endif
+ 
++extern int do_madvise(unsigned long start, size_t len_in, int behavior);
++
+ #endif /* __KERNEL__ */
+ #endif /* _LINUX_MM_H */
+diff --git a/mm/madvise.c b/mm/madvise.c
+index 93fb63e88b5e..c8bbf93d4978 100644
+--- a/mm/madvise.c
++++ b/mm/madvise.c
+@@ -618,9 +618,7 @@ madvise_behavior_valid(int behavior)
+ }
+ 
+ /*
+- * The madvise(2) system call.
+- *
+- * Applications can use madvise() to advise the kernel how it should
++ * Kernel modules can use do_madvise() to advise the kernel how it should
+  * handle paging I/O in this VM area.  The idea is to help the kernel
+  * use appropriate read-ahead and caching techniques.  The information
+  * provided is advisory only, and can be safely disregarded by the
+@@ -673,7 +671,7 @@ madvise_behavior_valid(int behavior)
+  *  -EBADF  - map exists, but area maps something that isn't a file.
+  *  -EAGAIN - a kernel resource was temporarily unavailable.
+  */
+-SYSCALL_DEFINE3(madvise, unsigned long, start, size_t, len_in, int, behavior)
++int do_madvise(unsigned long start, size_t len_in, int behavior)
+ {
+        unsigned long end, tmp;
+        struct vm_area_struct *vma, *prev;
+@@ -767,3 +765,22 @@ SYSCALL_DEFINE3(madvise, unsigned long, start, size_t, len_in, int, behavior)
+ 
+        return error;
+ }
++EXPORT_SYMBOL_GPL(do_madvise);
++
++/*
++ * The madvise(2) system call.
++ *
++ * Applications can use madvise() system call to advise the kernel how
++ * it should handle paging I/O in this VM area.  The idea is to help
++ * the kernel use appropriate read-ahead and caching techniques.  The
++ * information provided is advisory only, and can be safely disregarded
++ * by the kernel without affecting the correct operation of the application.
++ *
++ * behavior values are the same than the ones defined in madvise()
++ *
++ * return values are the same than the ones defined in madvise()
++ */
++SYSCALL_DEFINE3(madvise, unsigned long, start, size_t, len_in, int, behavior)
++{
++       return do_madvise(start, len_in, behavior);
++}
+-- 
+2.12.1
+
diff --git a/patches/boot_time_opt/0152-x86-kvm-Notify-host-to-release-pages.patch b/patches/boot_time_opt/0152-x86-kvm-Notify-host-to-release-pages.patch
new file mode 100644
index 0000000..5f44930
--- /dev/null
+++ b/patches/boot_time_opt/0152-x86-kvm-Notify-host-to-release-pages.patch
@@ -0,0 +1,180 @@
+From d28921b5f797829e4e676f7968ae688ef96b7992 Mon Sep 17 00:00:00 2001
+From: Sebastien Boeuf <sebastien.boeuf@intel.com>
+Date: Mon, 23 Jan 2017 15:08:55 -0800
+Subject: [PATCH 152/154] x86: kvm: Notify host to release pages
+
+In context of hypervisors managing several virtual machines, we
+want those virtual machines to give the memory they used back to
+the host when they don't need it anymore.
+
+This patch introduces a new hypercall KVM_HC_RETURN_MEM, allowing
+the guest kernel to notify the host kernel when such event occurs.
+And relying on do_madvise() function that we have previously exported,
+it issues a call to this function when it receives the new hypercall.
+
+Use of do_madvise() with MADV_DONTNEED flag will allow the guest to
+ask for a new page without going through a new hypercall. Instead,
+it will be able to start using that memory again as it will get
+faulted back in as a fresh new page. That's why do_madvise() is more
+efficient than doing vm_unmap() to return some memory to the host.
+
+This patch introduces also a new sysctl kvm_madv_instant_free,
+allowing user to set MADV_FREE advice instead of MADV_DONTNEED.
+Indeed, MADV_FREE saves more performances than using MADV_DONTNEED
+because it does not zero the pages in case the memory has not been
+freed by the kernel. This can happen when there was no need for the
+kernel to get this memory back, meaning it was keeping those pages
+in the right state to be re-used by the same application.
+MADV_FREE being a very recent advice introduced in kernel 4.5, we
+only want to enable it through a sysctl in case the user want to
+use it.
+
+Suggested-by: Arjan van de Ven <arjan.van.de.ven@intel.com>
+Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
+---
+ arch/x86/kvm/x86.c            | 17 +++++++++++++++++
+ include/linux/mm.h            |  5 +++++
+ include/uapi/linux/kvm_para.h |  3 +++
+ kernel/sysctl.c               |  7 +++++++
+ mm/Makefile                   |  2 +-
+ mm/kvm.c                      | 25 +++++++++++++++++++++++++
+ 6 files changed, 58 insertions(+), 1 deletion(-)
+ create mode 100644 mm/kvm.c
+
+diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
+index 582c75311f95..683a94dd5f03 100644
+--- a/arch/x86/kvm/x86.c
++++ b/arch/x86/kvm/x86.c
+@@ -46,6 +46,7 @@
+ #include <linux/user-return-notifier.h>
+ #include <linux/srcu.h>
+ #include <linux/slab.h>
++#include <linux/mm.h>
+ #include <linux/perf_event.h>
+ #include <linux/uaccess.h>
+ #include <linux/hash.h>
+@@ -6019,6 +6020,19 @@ static void kvm_pv_kick_cpu_op(struct kvm *kvm, unsigned long flags, int apicid)
+        kvm_irq_delivery_to_apic(kvm, NULL, &lapic_irq, NULL);
+ }
+ 
++static int kvm_pv_return_mem_op(struct kvm *kvm, gpa_t gpa, size_t len)
++{
++       unsigned long start = gfn_to_hva(kvm, gpa_to_gfn(gpa));
++
++       if (len > KVM_MAX_RET_MEM_SIZE)
++               return KVM_EPERM;
++
++       if (kvm_is_error_hva(start + len))
++               return KVM_EFAULT;
++
++       return do_madvise(start, len, kvm_ret_mem_advice);
++}
++
+ void kvm_vcpu_deactivate_apicv(struct kvm_vcpu *vcpu)
+ {
+        vcpu->arch.apicv_active = false;
+@@ -6065,6 +6079,9 @@ int kvm_emulate_hypercall(struct kvm_vcpu *vcpu)
+                kvm_pv_kick_cpu_op(vcpu->kvm, a0, a1);
+                ret = 0;
+                break;
++       case KVM_HC_RETURN_MEM:
++               ret = kvm_pv_return_mem_op(vcpu->kvm, a0, a1);
++               break;
+        default:
+                ret = -KVM_ENOSYS;
+                break;
+diff --git a/include/linux/mm.h b/include/linux/mm.h
+index 925ec25f99a8..833f23d98baa 100644
+--- a/include/linux/mm.h
++++ b/include/linux/mm.h
+@@ -2303,6 +2303,11 @@ extern bool process_shares_mm(struct task_struct *p, struct mm_struct *mm);
+ extern int sysctl_drop_caches;
+ int drop_caches_sysctl_handler(struct ctl_table *, int,
+                                        void __user *, size_t *, loff_t *);
++extern int sysctl_kvm_madv_instant_free;
++extern int kvm_ret_mem_advice;
++int kvm_madv_instant_free_sysctl_handler(struct ctl_table *table, int write,
++                                        void __user *buffer, size_t *length,
++                                        loff_t *ppos);
+ #endif
+ 
+ void drop_slab(void);
+diff --git a/include/uapi/linux/kvm_para.h b/include/uapi/linux/kvm_para.h
+index bf6cd7d5cac2..7d90f77d87d0 100644
+--- a/include/uapi/linux/kvm_para.h
++++ b/include/uapi/linux/kvm_para.h
+@@ -23,6 +23,9 @@
+ #define KVM_HC_MIPS_GET_CLOCK_FREQ     6
+ #define KVM_HC_MIPS_EXIT_VM            7
+ #define KVM_HC_MIPS_CONSOLE_OUTPUT     8
++#define KVM_HC_RETURN_MEM              10
++
++#define KVM_MAX_RET_MEM_SIZE           (1 << 22) // 4MiB
+ 
+ /*
+  * hypercalls use architecture specific
+diff --git a/kernel/sysctl.c b/kernel/sysctl.c
+index c1095cdc0fe2..d8ae774fa042 100644
+--- a/kernel/sysctl.c
++++ b/kernel/sysctl.c
+@@ -1398,6 +1398,13 @@ static struct ctl_table vm_table[] = {
+                .extra1         = &one,
+                .extra2         = &four,
+        },
++       {
++               .procname       = "kvm_madv_instant_free",
++               .data           = &sysctl_kvm_madv_instant_free,
++               .maxlen         = sizeof(int),
++               .mode           = 0644,
++               .proc_handler   = kvm_madv_instant_free_sysctl_handler,
++       },
+ #ifdef CONFIG_COMPACTION
+        {
+                .procname       = "compact_memory",
+diff --git a/mm/Makefile b/mm/Makefile
+index 295bd7a..6455723 100644
+--- a/mm/Makefile
++++ b/mm/Makefile
+@@ -47,6 +47,8 @@ else
+        obj-y           += bootmem.o
+ endif
+ 
++obj-y += kvm.o
++
+ obj-$(CONFIG_ADVISE_SYSCALLS)  += fadvise.o
+ ifdef CONFIG_MMU
+        obj-$(CONFIG_ADVISE_SYSCALLS)   += madvise.o
+diff --git a/mm/kvm.c b/mm/kvm.c
+new file mode 100644
+index 000000000000..8945f6a311b9
+--- /dev/null
++++ b/mm/kvm.c
+@@ -0,0 +1,25 @@
++#include <linux/mman.h>
++
++int sysctl_kvm_madv_instant_free;
++
++int kvm_ret_mem_advice = MADV_DONTNEED;
++EXPORT_SYMBOL_GPL(kvm_ret_mem_advice);
++
++int kvm_madv_instant_free_sysctl_handler(struct ctl_table *table, int write,
++       void __user *buffer, size_t *length, loff_t *ppos)
++{
++       int ret;
++
++       ret = proc_dointvec(table, write, buffer, length, ppos);
++       if (ret)
++               return ret;
++
++#ifdef MADV_FREE
++       if (sysctl_kvm_madv_instant_free > 0)
++               kvm_ret_mem_advice = MADV_FREE;
++       else
++               kvm_ret_mem_advice = MADV_DONTNEED;
++#endif
++
++       return 0;
++}
+-- 
+2.12.1
+
diff --git a/patches/boot_time_opt/0153-x86-Return-memory-from-guest-to-host-kernel.patch b/patches/boot_time_opt/0153-x86-Return-memory-from-guest-to-host-kernel.patch
new file mode 100644
index 0000000..cdb876a
--- /dev/null
+++ b/patches/boot_time_opt/0153-x86-Return-memory-from-guest-to-host-kernel.patch
@@ -0,0 +1,155 @@
+From 855ef164854307839c08c60688eaeac14f9a649e Mon Sep 17 00:00:00 2001
+From: Sebastien Boeuf <sebastien.boeuf@intel.com>
+Date: Mon, 23 Jan 2017 15:26:13 -0800
+Subject: [PATCH 153/154] x86: Return memory from guest to host kernel
+
+All virtual machines need memory to perform various tasks, but this
+memory is not released to the host after it is not used anymore. We
+have to wait for the termination of the virtual machine to get this
+memory back into the host.
+
+Ballooning mechanism is close but not designed for the same purpose.
+In case we hit memory limits of the system, the host predicts how much
+memory can be asked back from a guest, and it issues an hypercall to
+retrieve this memory.
+
+The solution proposed is different because it does not wait for host
+needs before to return memory, and it knows precisely how much memory
+it can return.
+
+The way to notify the host side about such a return is to rely on
+the new hypercall KVM_HC_RETURN_MEM. In order to avoid the CPU to be
+overloaded with too many hypercalls, we only return memory blocks of
+order 7 (512k blocks) and higher. This value has been found running
+memory tests using multiple threads allocating/freeing high amount
+of memory. Those tests were run for different order values, and 7 was
+the best tradeoff between the number of hypercalls issued and the
+amount of memory returned to the host.
+
+In order to limit performances impact related to this code addition,
+we check for blocks of order 7 or higher. This means it only costs an
+additional function call and a branch to perform this check.
+
+Furthermore, this code has been added to the "merge" codepath of the
+buddy allocator, which is not as sensitive as the "free" codepath.
+Not all blocks going through the "free" codepath will end up in the
+"merge" codepath because some of them won't find their free buddy.
+But this is a negligible amount since the kernel does not use many
+high order blocks directly. Instead, those bigger blocks are often
+broken into smaller chunks used as low order blocks. At the time
+those small blocks are released, they go through the merge path.
+
+Benchmarks such as ebizzy and will-it-scale have been run in order
+to make sure this patch does not affect kernel performances and no
+significant differences were observed.
+
+Suggested-by: Arjan van de Ven <arjan.van.de.ven@intel.com>
+Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
+---
+ arch/x86/include/asm/kvm_para.h | 22 ++++++++++++++++++++++
+ arch/x86/kernel/kvm.c           | 10 ++++++++++
+ include/linux/mm-arch-hooks.h   |  8 ++++++++
+ mm/page_alloc.c                 |  2 ++
+ 4 files changed, 42 insertions(+)
+
+diff --git a/arch/x86/include/asm/kvm_para.h b/arch/x86/include/asm/kvm_para.h
+index bc62e7cbf1b1..4a2f6d1adbd2 100644
+--- a/arch/x86/include/asm/kvm_para.h
++++ b/arch/x86/include/asm/kvm_para.h
+@@ -92,6 +92,28 @@ void kvm_async_pf_task_wait(u32 token);
+ void kvm_async_pf_task_wake(u32 token);
+ u32 kvm_read_and_reset_pf_reason(void);
+ extern void kvm_disable_steal_time(void);
++void kvm_arch_return_memory(struct page *page, unsigned int order);
++
++/*
++ * This order has been found in an empirical way, running memory tests
++ * through many iterations to assess the number of hypercalls issued
++ * and the amount of memory returned. In case you change this order to
++ * 6 or 8, it should not impact your performances significantly.
++ *
++ * Smaller values lead to less memory waste, but consume more CPU on
++ * hypercalls. Larger values use less CPU, but do not as precisely
++ * inform the hypervisor of which memory is free.
++ */
++#define RET_MEM_BUDDY_ORDER 7
++
++static inline void arch_buddy_merge(struct page *page, unsigned int order)
++{
++       if (order < RET_MEM_BUDDY_ORDER)
++               return;
++
++       kvm_arch_return_memory(page, order);
++}
++#define arch_buddy_merge arch_buddy_merge
+ 
+ #ifdef CONFIG_PARAVIRT_SPINLOCKS
+ void __init kvm_spinlock_init(void);
+diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
+index edbbfc854e39..14167b3f6514 100644
+--- a/arch/x86/kernel/kvm.c
++++ b/arch/x86/kernel/kvm.c
+@@ -552,6 +552,16 @@ static __init int activate_jump_labels(void)
+ }
+ arch_initcall(activate_jump_labels);
+ 
++void kvm_arch_return_memory(struct page *page, unsigned int order)
++{
++       if (!kvm_para_available())
++               return;
++
++       kvm_hypercall2(KVM_HC_RETURN_MEM,
++                      page_to_phys(page),
++                      PAGE_SIZE << order);
++}
++
+ #ifdef CONFIG_PARAVIRT_SPINLOCKS
+ 
+ /* Kick a cpu by its apicid. Used to wake up a halted vcpu */
+diff --git a/include/linux/mm-arch-hooks.h b/include/linux/mm-arch-hooks.h
+index 4efc3f56e6df..26eb3a05a8a3 100644
+--- a/include/linux/mm-arch-hooks.h
++++ b/include/linux/mm-arch-hooks.h
+@@ -12,6 +12,7 @@
+ #define _LINUX_MM_ARCH_HOOKS_H
+ 
+ #include <asm/mm-arch-hooks.h>
++#include <asm/kvm_para.h>
+ 
+ #ifndef arch_remap
+ static inline void arch_remap(struct mm_struct *mm,
+@@ -22,4 +23,11 @@ static inline void arch_remap(struct mm_struct *mm,
+ #define arch_remap arch_remap
+ #endif
+ 
++#ifndef arch_buddy_merge
++static inline void arch_buddy_merge(struct page *page, unsigned int order)
++{
++}
++#define arch_buddy_merge arch_buddy_merge
++#endif
++
+ #endif /* _LINUX_MM_ARCH_HOOKS_H */
+diff --git a/mm/page_alloc.c b/mm/page_alloc.c
+index 1460e6ad5e14..5f6e6371bc6f 100644
+--- a/mm/page_alloc.c
++++ b/mm/page_alloc.c
+@@ -64,6 +64,7 @@
+ #include <linux/page_owner.h>
+ #include <linux/kthread.h>
+ #include <linux/memcontrol.h>
++#include <linux/mm-arch-hooks.h>
+ 
+ #include <asm/sections.h>
+ #include <asm/tlbflush.h>
+@@ -855,6 +856,7 @@ static inline void __free_one_page(struct page *page,
+        }
+ 
+ done_merging:
++       arch_buddy_merge(page, order);
+        set_page_order(page, order);
+ 
+        /*
+-- 
+2.12.1
+
diff --git a/patches/boot_time_opt/0154-sysctl-vm-Fine-grained-cache-shrinking.patch b/patches/boot_time_opt/0154-sysctl-vm-Fine-grained-cache-shrinking.patch
new file mode 100644
index 0000000..07d4a83
--- /dev/null
+++ b/patches/boot_time_opt/0154-sysctl-vm-Fine-grained-cache-shrinking.patch
@@ -0,0 +1,137 @@
+From 2c145b5233b504f5226a0f4bc44baeef33b444d8 Mon Sep 17 00:00:00 2001
+From: Sebastien Boeuf <sebastien.boeuf@intel.com>
+Date: Mon, 23 Jan 2017 15:32:39 -0800
+Subject: [PATCH 154/154] sysctl: vm: Fine-grained cache shrinking
+
+Lots of virtual machines are let in idle state for days until they
+are terminated, and they can keep a large amount of memory in their
+cache, meaning this memory cannot be used by other processes.
+
+We tried to release this memory using existing drop_caches sysctl,
+but it led to the complete cache loss while it could have been used
+whether the idle process wakes up. Indeed, the process can't find any
+available cached data and it directly affects performances to rebuild
+it from scratch.
+
+Instead, the solution we want is based on shrinking gradually system
+cache over time. This patch adds a new sysctl shrink_caches_mb so as
+to allow userspace applications indicating the kernel it should shrink
+system cache up to the amount (in MiB) specified.
+
+There is an application called "memshrinker" which uses this new
+mechanism. It runs in the background and periodically releases a
+specified amount of cache. This amount is based on the remaining
+cache on the system, and period is computed to follow a shrinking
+model. It results in saving a lot of memory for other processes
+running on the system.
+
+Suggested-by: Arjan van de Ven <arjan.van.de.ven@intel.com>
+Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
+---
+ fs/drop_caches.c   | 25 +++++++++++++++++++++++++
+ include/linux/mm.h |  4 ++++
+ kernel/sysctl.c    |  8 ++++++++
+ mm/vmscan.c        |  2 --
+ 4 files changed, 37 insertions(+), 2 deletions(-)
+
+diff --git a/fs/drop_caches.c b/fs/drop_caches.c
+index d72d52b90433..f564dfcc13a4 100644
+--- a/fs/drop_caches.c
++++ b/fs/drop_caches.c
+@@ -8,10 +8,12 @@
+ #include <linux/writeback.h>
+ #include <linux/sysctl.h>
+ #include <linux/gfp.h>
++#include <linux/swap.h>
+ #include "internal.h"
+ 
+ /* A global variable is a bit ugly, but it keeps the code simple */
+ int sysctl_drop_caches;
++int sysctl_shrink_caches_mb;
+ 
+ static void drop_pagecache_sb(struct super_block *sb, void *unused)
+ {
+@@ -67,3 +69,26 @@ int drop_caches_sysctl_handler(struct ctl_table *table, int write,
+        }
+        return 0;
+ }
++
++int shrink_caches_sysctl_handler(struct ctl_table *table, int write,
++       void __user *buffer, size_t *length, loff_t *ppos)
++{
++       int ret;
++       unsigned long nr_to_reclaim, page_reclaimed;
++
++       ret = proc_dointvec_minmax(table, write, buffer, length, ppos);
++       if (ret)
++               return ret;
++
++       nr_to_reclaim = sysctl_shrink_caches_mb * (1 << 20) / PAGE_SIZE;
++       if (write) {
++               page_reclaimed = shrink_all_memory(nr_to_reclaim);
++               if (page_reclaimed > 0)
++                       lru_add_drain_all();
++
++               if (page_reclaimed != nr_to_reclaim)
++                       return page_reclaimed;
++       }
++
++       return 0;
++}
+diff --git a/include/linux/mm.h b/include/linux/mm.h
+index 833f23d98baa..0bb66c1c31c9 100644
+--- a/include/linux/mm.h
++++ b/include/linux/mm.h
+@@ -2308,6 +2308,10 @@ extern int kvm_ret_mem_advice;
+ int kvm_madv_instant_free_sysctl_handler(struct ctl_table *table, int write,
+                                         void __user *buffer, size_t *length,
+                                         loff_t *ppos);
++extern int sysctl_shrink_caches_mb;
++int shrink_caches_sysctl_handler(struct ctl_table *table, int write,
++                                void __user *buffer, size_t *length,
++                                loff_t *ppos);
+ #endif
+ 
+ void drop_slab(void);
+diff --git a/kernel/sysctl.c b/kernel/sysctl.c
+index d8ae774fa042..5dc9a46ae212 100644
+--- a/kernel/sysctl.c
++++ b/kernel/sysctl.c
+@@ -1405,6 +1405,14 @@ static struct ctl_table vm_table[] = {
+                .mode           = 0644,
+                .proc_handler   = kvm_madv_instant_free_sysctl_handler,
+        },
++       {
++               .procname       = "shrink_caches_mb",
++               .data           = &sysctl_shrink_caches_mb,
++               .maxlen         = sizeof(int),
++               .mode           = 0644,
++               .proc_handler   = shrink_caches_sysctl_handler,
++               .extra1         = &one,
++       },
+ #ifdef CONFIG_COMPACTION
+        {
+                .procname       = "compact_memory",
+diff --git a/mm/vmscan.c b/mm/vmscan.c
+index 30a88b945a44..1198e74d1860 100644
+--- a/mm/vmscan.c
++++ b/mm/vmscan.c
+@@ -3525,7 +3525,6 @@ void wakeup_kswapd(struct zone *zone, int order, enum zone_type classzone_idx)
+        wake_up_interruptible(&pgdat->kswapd_wait);
+ }
+ 
+-#ifdef CONFIG_HIBERNATION
+ /*
+  * Try to free `nr_to_reclaim' of memory, system-wide, and return the number of
+  * freed pages.
+@@ -3564,7 +3563,6 @@ unsigned long shrink_all_memory(unsigned long nr_to_reclaim)
+ 
+        return nr_reclaimed;
+ }
+-#endif /* CONFIG_HIBERNATION */
+ 
+ /* It's optimal to keep kswapds on the same CPUs as their memory, but
+    not required for correctness.  So if the last cpu in a node goes
+-- 
+2.12.1
+
diff --git a/patches/boot_time_opt/host_boot_time_opt.scc b/patches/boot_time_opt/host_boot_time_opt.scc
new file mode 100644
index 0000000..ec93999
--- /dev/null
+++ b/patches/boot_time_opt/host_boot_time_opt.scc
@@ -0,0 +1,29 @@
+define KFEATURE_DESCRIPTION "Boot time optimization changes ported from ClearLinux, https://github.com/clearlinux-pkgs/linux-lts and https://github.com/clearlinux-pkgs/linux-kvm"
+define KFEATURE_COMPATIBILITY all
+
+patch 0101-kvm-silence-kvm-unhandled-rdmsr.patch
+patch 0102-i8042-decrease-debug-message-level-to-info.patch
+patch 0104-Increase-the-ext4-default-commit-age.patch
+patch 0105-silence-rapl.patch
+patch 0106-pci-pme-wakeups.patch
+patch 0107-ksm-wakeups.patch
+patch 0108-intel_idle-tweak-cpuidle-cstates.patch
+patch 0110-init_task-faster-timerslack.patch
+patch 0112-fs-ext4-fsync-optimize-double-fsync-a-bunch.patch
+patch 0113-overload-on-wakeup.patch
+patch 0114-bootstats-add-printk-s-to-measure-boot-time-in-more-.patch
+patch 0115-fix-initcall-timestamps.patch
+patch 0116-smpboot-reuse-timer-calibration.patch
+patch 0118-Initialize-ata-before-graphics.patch
+patch 0119-reduce-e1000e-boot-time-by-tightening-sleep-ranges.patch
+patch 0120-give-rdrand-some-credit.patch
+patch 0121-e1000e-change-default-policy.patch
+patch 0122-ipv4-tcp-allow-the-memory-tuning-for-tcp-to-go-a-lit.patch
+patch 0123-igb-no-runtime-pm-to-fix-reboot-oops.patch
+patch 0124-tweak-perfbias.patch
+patch 0125-e1000e-increase-pause-and-refresh-time.patch
+
+patch 0151-mm-Export-do_madvise.patch
+patch 0152-x86-kvm-Notify-host-to-release-pages.patch
+patch 0153-x86-Return-memory-from-guest-to-host-kernel.patch
+patch 0154-sysctl-vm-Fine-grained-cache-shrinking.patch
diff --git a/patches/boot_time_opt/raid_alg.cfg b/patches/boot_time_opt/raid_alg.cfg
new file mode 100644
index 0000000..6df4a7c
--- /dev/null
+++ b/patches/boot_time_opt/raid_alg.cfg
@@ -0,0 +1,3 @@
+CONFIG_RAID6_FORCE_ALGO=y
+CONFIG_RAID6_FORCE_INT=y
+CONFIG_RAID6_FORCE_AVX2=y
diff --git a/patches/boot_time_opt/raid_alg.scc b/patches/boot_time_opt/raid_alg.scc
new file mode 100644
index 0000000..98dd713
--- /dev/null
+++ b/patches/boot_time_opt/raid_alg.scc
@@ -0,0 +1,5 @@
+define KFEATURE_DESCRIPTION "Use AVX2 for RAID recovery algorithm"
+define KFEATURE_COMPATIBILITY all
+
+patch 0117-raid6-add-Kconfig-option-to-skip-raid6-benchmarking.patch
+kconf non-hardware raid_alg.cfg
diff --git a/patches/boot_time_opt_guest/0102-cpuidle-skip-synchronize_rcu-on-single-CPU-systems.patch b/patches/boot_time_opt_guest/0102-cpuidle-skip-synchronize_rcu-on-single-CPU-systems.patch
new file mode 100644
index 0000000..1de2a6b
--- /dev/null
+++ b/patches/boot_time_opt_guest/0102-cpuidle-skip-synchronize_rcu-on-single-CPU-systems.patch
@@ -0,0 +1,34 @@
+From 6b0fb5b2a7a157c04d8ab6ad71b092034d0048bf Mon Sep 17 00:00:00 2001
+From: Arjan van de Ven <arjan@linux.intel.com>
+Date: Wed, 11 Feb 2015 16:19:26 -0600
+Subject: [PATCH 102/114] cpuidle: skip synchronize_rcu() on single CPU systems
+
+synchronize_rcu() is pretty expensive, and on single CPU systems we don't need
+it in this specific case, so skip it.
+
+Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
+Signed-off-by: Miguel Bernal Marin <miguel.bernal.marin@linux.intel.com>
+---
+ drivers/cpuidle/cpuidle.c | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c
+index 62810ff3b00f..f1d110411098 100644
+--- a/drivers/cpuidle/cpuidle.c
++++ b/drivers/cpuidle/cpuidle.c
+@@ -324,8 +324,11 @@ void cpuidle_uninstall_idle_handler(void)
+        /*
+         * Make sure external observers (such as the scheduler)
+         * are done looking at pointed idle states.
++        * This is only relevant if there is more than one cpu,
++        * if there is only one CPU, that is us... and we're
++        * coherent to ourselves.
+         */
+-       synchronize_rcu();
++
+ }
+ 
+ /**
+-- 
+2.11.1
+
diff --git a/patches/boot_time_opt_guest/0103-sysrq-skip-synchronize_rcu-if-there-is-no-old-op.patch b/patches/boot_time_opt_guest/0103-sysrq-skip-synchronize_rcu-if-there-is-no-old-op.patch
new file mode 100644
index 0000000..d3a20fb
--- /dev/null
+++ b/patches/boot_time_opt_guest/0103-sysrq-skip-synchronize_rcu-if-there-is-no-old-op.patch
@@ -0,0 +1,38 @@
+From 7be707833bb35c295eb702d13cf73ac9390e4b31 Mon Sep 17 00:00:00 2001
+From: Arjan van de Ven <arjan@linux.intel.com>
+Date: Wed, 11 Feb 2015 16:25:16 -0600
+Subject: [PATCH 103/114] sysrq: skip synchronize_rcu() if there is no old op
+
+synchronize_rcu() is expensive. Currently it is called as part of the sysrq
+registration/unregistration, which happens during boot several times.
+Now, the reason for the synchronize_rcu() is to allow an old registered
+operation to expire properly... which is pointless if the old operation
+is NULL...
+So we can save the common case of the old operation being NULL a lot of time
+by just checking for non-NULL prior to the synchronize_rcu()
+
+Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
+Signed-off-by: Miguel Bernal Marin <miguel.bernal.marin@linux.intel.com>
+---
+ drivers/tty/sysrq.c | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c
+index 701c085bb19b..c60c7ba57ad9 100644
+--- a/drivers/tty/sysrq.c
++++ b/drivers/tty/sysrq.c
+@@ -1065,8 +1065,10 @@ static int __sysrq_swap_key_ops(int key, struct sysrq_key_op *insert_op_p,
+         * A concurrent __handle_sysrq either got the old op or the new op.
+         * Wait for it to go away before returning, so the code for an old
+         * op is not freed (eg. on module unload) while it is in use.
++        * This is only relevant if the old op is not NULL of course.
+         */
+-       synchronize_rcu();
++       if (remove_op_p)
++               synchronize_rcu();
+ 
+        return retval;
+ }
+-- 
+2.11.1
+
diff --git a/patches/boot_time_opt_guest/0104-fbcon-enable-no-blink-by-default.patch b/patches/boot_time_opt_guest/0104-fbcon-enable-no-blink-by-default.patch
new file mode 100644
index 0000000..715c195
--- /dev/null
+++ b/patches/boot_time_opt_guest/0104-fbcon-enable-no-blink-by-default.patch
@@ -0,0 +1,26 @@
+From 5899ff79ed4e3514420e1530a3588a922832dae5 Mon Sep 17 00:00:00 2001
+From: Jose Carlos Venegas Munoz <jos.c.venegas.munoz@intel.com>
+Date: Mon, 13 Apr 2015 11:26:36 -0500
+Subject: [PATCH 104/114] fbcon: enable no blink by default
+
+Author:    Arjan van de Ven <arjan@linux.intel.com>
+---
+ drivers/video/console/fbcon.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
+index a44f5627b82a..95b73366b86f 100644
+--- a/drivers/video/console/fbcon.c
++++ b/drivers/video/console/fbcon.c
+@@ -146,7 +146,7 @@ static const struct consw fb_con;
+ 
+ static int fbcon_set_origin(struct vc_data *);
+ 
+-static int fbcon_cursor_noblink;
++static int fbcon_cursor_noblink = 1;
+ 
+ #define divides(a, b)  ((!(a) || (b)%(a)) ? 0 : 1)
+ 
+-- 
+2.11.1
+
diff --git a/patches/boot_time_opt_guest/0105-vmstats-wakeups.patch b/patches/boot_time_opt_guest/0105-vmstats-wakeups.patch
new file mode 100644
index 0000000..09b109a
--- /dev/null
+++ b/patches/boot_time_opt_guest/0105-vmstats-wakeups.patch
@@ -0,0 +1,28 @@
+From ff47b4e9be8113b4ba05d6f2afee3db6904bc10f Mon Sep 17 00:00:00 2001
+From: Arjan van de Ven <arjan@linux.intel.com>
+Date: Wed, 11 Feb 2015 16:47:20 -0600
+Subject: [PATCH 105/114] vmstats: wakeups
+
+Author:    Arjan van de Ven <arjan@linux.intel.com>
+
+Signed-off-by: Miguel Bernal Marin <miguel.bernal.marin@linux.intel.com>
+---
+ mm/vmstat.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/mm/vmstat.c b/mm/vmstat.c
+index 7c28df36f50f..efe1b6797139 100644
+--- a/mm/vmstat.c
++++ b/mm/vmstat.c
+@@ -1549,7 +1549,7 @@ static const struct file_operations proc_vmstat_file_operations = {
+ #ifdef CONFIG_SMP
+ static struct workqueue_struct *vmstat_wq;
+ static DEFINE_PER_CPU(struct delayed_work, vmstat_work);
+-int sysctl_stat_interval __read_mostly = HZ;
++int sysctl_stat_interval __read_mostly = 8 * HZ;
+ 
+ #ifdef CONFIG_PROC_FS
+ static void refresh_vm_stats(struct work_struct *work)
+-- 
+2.11.1
+
diff --git a/patches/boot_time_opt_guest/0106-pci-probe.patch b/patches/boot_time_opt_guest/0106-pci-probe.patch
new file mode 100644
index 0000000..5045926
--- /dev/null
+++ b/patches/boot_time_opt_guest/0106-pci-probe.patch
@@ -0,0 +1,123 @@
+From b225caf8f743b9f5f9e84d0df711ee0c17e049ae Mon Sep 17 00:00:00 2001
+From: Arjan van de Ven <arjan@linux.intel.com>
+Date: Wed, 11 Feb 2015 16:53:08 -0600
+Subject: [PATCH 106/114] pci: probe
+
+Author:    Arjan van de Ven <arjan@linux.intel.com>
+
+Signed-off-by: Miguel Bernal Marin <miguel.bernal.marin@linux.intel.com>
+---
+ drivers/pci/probe.c | 43 ++++++++++++++++++++++++++++++++++++++++---
+ 1 file changed, 40 insertions(+), 3 deletions(-)
+
+diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
+index 204960e70333..7399a06698da 100644
+--- a/drivers/pci/probe.c
++++ b/drivers/pci/probe.c
+@@ -182,6 +182,10 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
+ 
+        mask = type ? PCI_ROM_ADDRESS_MASK : ~0;
+ 
++       res->name = pci_name(dev);
++
++       printk("clr: Starting probe for %s\n", res->name);
++
+        /* No printks while decoding is disabled! */
+        if (!dev->mmio_always_on) {
+                pci_read_config_word(dev, PCI_COMMAND, &orig_cmd);
+@@ -191,8 +195,6 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
+                }
+        }
+ 
+-       res->name = pci_name(dev);
+-
+        pci_read_config_dword(dev, pos, &l);
+        pci_write_config_dword(dev, pos, l | mask);
+        pci_read_config_dword(dev, pos, &sz);
+@@ -324,6 +326,8 @@ static void pci_read_bases(struct pci_dev *dev, unsigned int howmany, int rom)
+        if (dev->non_compliant_bars)
+                return;
+ 
++       printk("clr: pci_read_bases start\n");
++
+        for (pos = 0; pos < howmany; pos++) {
+                struct resource *res = &dev->resource[pos];
+                reg = PCI_BASE_ADDRESS_0 + (pos << 2);
+@@ -332,11 +336,13 @@ static void pci_read_bases(struct pci_dev *dev, unsigned int howmany, int rom)
+ 
+        if (rom) {
+                struct resource *res = &dev->resource[PCI_ROM_RESOURCE];
++               printk("clr: rom path\n");
+                dev->rom_base_reg = rom;
+                res->flags = IORESOURCE_MEM | IORESOURCE_PREFETCH |
+                                IORESOURCE_READONLY | IORESOURCE_SIZEALIGN;
+                __pci_read_base(dev, pci_bar_mem32, res, rom);
+        }
++       printk("clr: pci_read_bases end\n");
+ }
+ 
+ static void pci_read_bridge_io(struct pci_bus *child)
+@@ -1311,6 +1317,28 @@ static void pci_msi_setup_pci_dev(struct pci_dev *dev)
+                pci_msix_clear_and_set_ctrl(dev, PCI_MSIX_FLAGS_ENABLE, 0);
+ }
+ 
++static int guess_bar_count(int class)
++{
++        if (class == 0x068000)
++            return 0;
++        if (class == 0x020000)
++            return 2;
++        if (class == 0x010000)
++            return 2;
++        if (class == 0x00ff00)
++            return 1;
++        return 6;
++}
++
++static int has_rom(int class, int rom)
++{
++        if (class == 0x020000)
++          return 0;
++        if (class == 0x010000 || class == 0x00ff00)
++          return 0;
++        return rom;
++}
++
+ /**
+  * pci_setup_device - fill in class and map information of a device
+  * @dev: the device structure to fill
+@@ -1329,6 +1357,9 @@ int pci_setup_device(struct pci_dev *dev)
+        int pos = 0;
+        struct pci_bus_region region;
+        struct resource *res;
++       int maxbar;
++
++       printk("clr: pci_setup_device start\n");
+ 
+        if (pci_read_config_byte(dev, PCI_HEADER_TYPE, &hdr_type))
+                return -EIO;
+@@ -1383,7 +1414,11 @@ int pci_setup_device(struct pci_dev *dev)
+                if (class == PCI_CLASS_BRIDGE_PCI)
+                        goto bad;
+                pci_read_irq(dev);
+-               pci_read_bases(dev, 6, PCI_ROM_ADDRESS);
++
++               maxbar = guess_bar_count(dev->class);
++
++               if (class != PCI_CLASS_STORAGE_IDE)
++                       pci_read_bases(dev, maxbar, has_rom(dev->class, PCI_ROM_ADDRESS));
+                pci_read_config_word(dev, PCI_SUBSYSTEM_VENDOR_ID, &dev->subsystem_vendor);
+                pci_read_config_word(dev, PCI_SUBSYSTEM_ID, &dev->subsystem_device);
+ 
+@@ -1468,6 +1503,8 @@ int pci_setup_device(struct pci_dev *dev)
+                dev->class = PCI_CLASS_NOT_DEFINED << 8;
+        }
+ 
++       printk("clr: pci_setup_device end\n");
++
+        /* We found a fine healthy device, go go go... */
+        return 0;
+ }
+-- 
+2.11.1
+
diff --git a/patches/boot_time_opt_guest/0107-cgroup.patch b/patches/boot_time_opt_guest/0107-cgroup.patch
new file mode 100644
index 0000000..d68c686
--- /dev/null
+++ b/patches/boot_time_opt_guest/0107-cgroup.patch
@@ -0,0 +1,107 @@
+From 0adc5bfd84939d11d3c172eab0a00bfab4aadb46 Mon Sep 17 00:00:00 2001
+From: Arjan van de Ven <arjan@linux.intel.com>
+Date: Fri, 28 Aug 2015 11:00:36 -0500
+Subject: [PATCH 107/114] cgroup
+
+Author:    Arjan van de Ven <arjan@linux.intel.com>
+
+Signed-off-by: Miguel Bernal Marin <miguel.bernal.marin@linux.intel.com>
+Signed-off-by: Jose Carlos Venegas Munoz <jos.c.venegas.munoz@intel.com>
+---
+ include/linux/cgroup-defs.h |  2 +-
+ kernel/cgroup.c             | 24 ++++++++++++++----------
+ 2 files changed, 15 insertions(+), 11 deletions(-)
+
+diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h
+index 861b4677fc5b..5d3c345ee60c 100644
+--- a/include/linux/cgroup-defs.h
++++ b/include/linux/cgroup-defs.h
+@@ -137,7 +137,7 @@ struct cgroup_subsys_state {
+ 
+        /* percpu_ref killing and RCU release */
+        struct rcu_head rcu_head;
+-       struct work_struct destroy_work;
++       struct delayed_work destroy_work;
+ };
+ 
+ /*
+diff --git a/kernel/cgroup.c b/kernel/cgroup.c
+index 53bbca7c4859..6de39d8213ed 100644
+--- a/kernel/cgroup.c
++++ b/kernel/cgroup.c
+@@ -73,7 +73,7 @@
+  * Expiring in the middle is a performance problem not a correctness one.
+  * 1 sec should be enough.
+  */
+-#define CGROUP_PIDLIST_DESTROY_DELAY   HZ
++#define CGROUP_PIDLIST_DESTROY_DELAY   round_jiffies_relative(HZ)
+ 
+ #define CGROUP_FILE_NAME_MAX           (MAX_CGROUP_TYPE_NAMELEN +      \
+                                         MAX_CFTYPE_NAME + 2)
+@@ -4986,8 +4986,9 @@ static struct cftype cgroup_legacy_base_files[] = {
+  */
+ static void css_free_work_fn(struct work_struct *work)
+ {
++       struct delayed_work *dwork = to_delayed_work(work);
+        struct cgroup_subsys_state *css =
+-               container_of(work, struct cgroup_subsys_state, destroy_work);
++               container_of(dwork, struct cgroup_subsys_state, destroy_work);
+        struct cgroup_subsys *ss = css->ss;
+        struct cgroup *cgrp = css->cgroup;
+ 
+@@ -5036,14 +5037,15 @@ static void css_free_rcu_fn(struct rcu_head *rcu_head)
+        struct cgroup_subsys_state *css =
+                container_of(rcu_head, struct cgroup_subsys_state, rcu_head);
+ 
+-       INIT_WORK(&css->destroy_work, css_free_work_fn);
+-       queue_work(cgroup_destroy_wq, &css->destroy_work);
++       INIT_DELAYED_WORK(&css->destroy_work, css_free_work_fn);
++       queue_delayed_work(cgroup_destroy_wq, &css->destroy_work, CGROUP_PIDLIST_DESTROY_DELAY);
+ }
+ 
+ static void css_release_work_fn(struct work_struct *work)
+ {
++       struct delayed_work *dwork = to_delayed_work(work);
+        struct cgroup_subsys_state *css =
+-               container_of(work, struct cgroup_subsys_state, destroy_work);
++               container_of(dwork, struct cgroup_subsys_state, destroy_work);
+        struct cgroup_subsys *ss = css->ss;
+        struct cgroup *cgrp = css->cgroup;
+ 
+@@ -5088,8 +5090,9 @@ static void css_release(struct percpu_ref *ref)
+        struct cgroup_subsys_state *css =
+                container_of(ref, struct cgroup_subsys_state, refcnt);
+ 
+-       INIT_WORK(&css->destroy_work, css_release_work_fn);
+-       queue_work(cgroup_destroy_wq, &css->destroy_work);
++       INIT_DELAYED_WORK(&css->destroy_work, css_release_work_fn);
++       queue_delayed_work(cgroup_destroy_wq, &css->destroy_work, CGROUP_PIDLIST_DESTROY_DELAY);
++
+ }
+ 
+ static void init_and_link_css(struct cgroup_subsys_state *css,
+@@ -5371,8 +5374,9 @@ static int cgroup_mkdir(struct kernfs_node *parent_kn, const char *name,
+  */
+ static void css_killed_work_fn(struct work_struct *work)
+ {
++       struct delayed_work *dwork = to_delayed_work(work);
+        struct cgroup_subsys_state *css =
+-               container_of(work, struct cgroup_subsys_state, destroy_work);
++               container_of(dwork, struct cgroup_subsys_state, destroy_work);
+ 
+        mutex_lock(&cgroup_mutex);
+ 
+@@ -5393,8 +5397,8 @@ static void css_killed_ref_fn(struct percpu_ref *ref)
+                container_of(ref, struct cgroup_subsys_state, refcnt);
+ 
+        if (atomic_dec_and_test(&css->online_cnt)) {
+-               INIT_WORK(&css->destroy_work, css_killed_work_fn);
+-               queue_work(cgroup_destroy_wq, &css->destroy_work);
++               INIT_DELAYED_WORK(&css->destroy_work, css_killed_work_fn);
++               queue_delayed_work(cgroup_destroy_wq, &css->destroy_work, CGROUP_PIDLIST_DESTROY_DELAY);
+        }
+ }
+ 
+-- 
+2.11.1
+
diff --git a/patches/boot_time_opt_guest/0108-smpboot-reuse-timer-calibration.patch b/patches/boot_time_opt_guest/0108-smpboot-reuse-timer-calibration.patch
new file mode 100644
index 0000000..48be94a
--- /dev/null
+++ b/patches/boot_time_opt_guest/0108-smpboot-reuse-timer-calibration.patch
@@ -0,0 +1,45 @@
+From 634947be6c24d844af5f6ecf59453f2ddc09e032 Mon Sep 17 00:00:00 2001
+From: Arjan van de Ven <arjan@linux.intel.com>
+Date: Wed, 11 Feb 2015 17:28:14 -0600
+Subject: [PATCH 108/114] smpboot: reuse timer calibration
+
+NO point recalibrating for known-constant tsc... saves 200ms+ of boot time.
+
+Author:    Arjan van de Ven <arjan@linux.intel.com>
+
+Signed-off-by: Miguel Bernal Marin <miguel.bernal.marin@linux.intel.com>
+---
+ arch/x86/kernel/smpboot.c | 2 +-
+ arch/x86/kernel/tsc.c     | 3 +++
+ 2 files changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
+index 99b920d0e516..e17bb425bb52 100644
+--- a/arch/x86/kernel/smpboot.c
++++ b/arch/x86/kernel/smpboot.c
+@@ -761,7 +761,7 @@ wakeup_secondary_cpu_via_init(int phys_apicid, unsigned long start_eip)
+        pr_debug("Waiting for send to finish...\n");
+        send_status = safe_apic_wait_icr_idle();
+ 
+-       udelay(init_udelay);
++       udelay(100);
+ 
+        pr_debug("Deasserting INIT\n");
+ 
+diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
+index 37e7cf544e51..e99be8a6a132 100644
+--- a/arch/x86/kernel/tsc.c
++++ b/arch/x86/kernel/tsc.c
+@@ -1413,6 +1413,9 @@ unsigned long calibrate_delay_is_known(void)
+        if (!mask)
+                return 0;
+ 
++       if (cpu !=0)
++               return cpu_data(0).loops_per_jiffy;
++
+        sibling = cpumask_any_but(mask, cpu);
+        if (sibling < nr_cpu_ids)
+                return cpu_data(sibling).loops_per_jiffy;
+-- 
+2.11.1
+
diff --git a/patches/boot_time_opt_guest/0109-perf.patch b/patches/boot_time_opt_guest/0109-perf.patch
new file mode 100644
index 0000000..75f50f6
--- /dev/null
+++ b/patches/boot_time_opt_guest/0109-perf.patch
@@ -0,0 +1,28 @@
+From cce700dfbd5fdbf72b96e6479ca539ab4d880ce2 Mon Sep 17 00:00:00 2001
+From: Arjan van de Ven <arjan@linux.intel.com>
+Date: Wed, 4 Nov 2015 15:17:10 -0600
+Subject: [PATCH 109/114] perf
+
+Author:    Arjan van de Ven <arjan@linux.intel.com>
+
+Signed-off-by: Miguel Bernal Marin <miguel.bernal.marin@linux.intel.com>
+---
+ arch/x86/events/intel/core.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c
+index eb1484c86bb4..c13ea26ac066 100644
+--- a/arch/x86/events/intel/core.c
++++ b/arch/x86/events/intel/core.c
+@@ -4040,7 +4040,7 @@ __init int intel_pmu_init(void)
+         */
+        if (x86_pmu.extra_regs) {
+                for (er = x86_pmu.extra_regs; er->msr; er++) {
+-                       er->extra_msr_access = check_msr(er->msr, 0x11UL);
++                       er->extra_msr_access = false;
+                        /* Disable LBR select mapping */
+                        if ((er->idx == EXTRA_REG_LBR) && !er->extra_msr_access)
+                                x86_pmu.lbr_sel_map = NULL;
+-- 
+2.11.1
+
diff --git a/patches/boot_time_opt_guest/0110-pci-probe-identify-known-devices.patch b/patches/boot_time_opt_guest/0110-pci-probe-identify-known-devices.patch
new file mode 100644
index 0000000..742a045
--- /dev/null
+++ b/patches/boot_time_opt_guest/0110-pci-probe-identify-known-devices.patch
@@ -0,0 +1,190 @@
+From c662d99134b67c58e63ecc17c2531588a3a51596 Mon Sep 17 00:00:00 2001
+From: Arjan van de Ven <arjan@linux.intel.com>
+Date: Sat, 14 Feb 2015 09:49:41 -0600
+Subject: [PATCH 110/114] pci: probe: identify known devices
+
+Author:    Arjan van de Ven <arjan@linux.intel.com>
+Modify-by: Miguel Bernal Marin <miguel.bernal.marin@linux.intel.com>
+
+Signed-off-by: Miguel Bernal Marin <miguel.bernal.marin@linux.intel.com>
+---
+ drivers/pci/probe.c | 156 ++++++++++++++++++++++++++++++++++++++++++++++++++++
+ 1 file changed, 156 insertions(+)
+
+diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
+index 7399a06698da..4fb2d7fed4c5 100644
+--- a/drivers/pci/probe.c
++++ b/drivers/pci/probe.c
+@@ -163,6 +163,159 @@ static inline unsigned long decode_bar(struct pci_dev *dev, u32 bar)
+ 
+ #define PCI_COMMAND_DECODE_ENABLE      (PCI_COMMAND_MEMORY | PCI_COMMAND_IO)
+ 
++/* shortcut version of __pci_read_base where we know the sizes already */
++int __pci_read_base_shortcut(struct pci_dev *dev, enum pci_bar_type type,
++                   struct resource *res, unsigned int pos, u32 sz_in, u32 sz2_in)
++{
++       u32 l, sz;
++       u64 l64, sz64, mask64;
++       struct pci_bus_region region, inverted_region;
++
++       res->name = pci_name(dev);
++
++       pci_read_config_dword(dev, pos, &l);
++
++       sz = sz_in;
++
++       /*
++        * All bits set in sz means the device isn't working properly.
++        * If the BAR isn't implemented, all bits must be 0.  If it's a
++        * memory BAR or a ROM, bit 0 must be clear; if it's an io BAR, bit
++        * 1 must be clear.
++        * Here we set the size and is not 0xffffffff
++        */
++
++       /*
++        * I don't know how l can have all bits set.  Copied from old code.
++        * Maybe it fixes a bug on some ancient platform.
++        */
++       if (l == 0xffffffff)
++               l = 0;
++
++       if (type == pci_bar_unknown) {
++               res->flags = decode_bar(dev, l);
++               res->flags |= IORESOURCE_SIZEALIGN;
++               if (res->flags & IORESOURCE_IO) {
++                       l64 = l & PCI_BASE_ADDRESS_IO_MASK;
++                       sz64 = sz & PCI_BASE_ADDRESS_IO_MASK;
++                       mask64 = PCI_BASE_ADDRESS_IO_MASK & (u32)IO_SPACE_LIMIT;
++               } else {
++                       l64 = l & PCI_BASE_ADDRESS_MEM_MASK;
++                       sz64 = sz & PCI_BASE_ADDRESS_MEM_MASK;
++                       mask64 = (u32)PCI_BASE_ADDRESS_MEM_MASK;
++               }
++       } else {
++               res->flags |= (l & IORESOURCE_ROM_ENABLE);
++               l64 = l & PCI_ROM_ADDRESS_MASK;
++               sz64 = sz & PCI_ROM_ADDRESS_MASK;
++               mask64 = (u32)PCI_ROM_ADDRESS_MASK;
++       }
++
++       if (res->flags & IORESOURCE_MEM_64) {
++               pci_read_config_dword(dev, pos + 4, &l);
++               sz = sz2_in;
++
++               l64 |= ((u64)l << 32);
++               sz64 |= ((u64)sz << 32);
++               mask64 |= ((u64)~0 << 32);
++       }
++
++       if (!sz64)
++               goto fail;
++
++       sz64 = pci_size(l64, sz64, mask64);
++       if (!sz64) {
++               dev_info(&dev->dev, FW_BUG "reg 0x%x: invalid BAR (can't size)\n",
++                        pos);
++               goto fail;
++       }
++
++       if (res->flags & IORESOURCE_MEM_64) {
++               if ((sizeof(dma_addr_t) < 8 || sizeof(resource_size_t) < 8) &&
++                   sz64 > 0x100000000ULL) {
++                       res->flags |= IORESOURCE_UNSET | IORESOURCE_DISABLED;
++                       res->start = 0;
++                       res->end = 0;
++                       dev_err(&dev->dev, "reg 0x%x: can't handle BAR larger than 4GB (size %#010llx)\n",
++                               pos, (unsigned long long)sz64);
++                       goto out;
++               }
++
++               if ((sizeof(dma_addr_t) < 8) && l) {
++                       /* Above 32-bit boundary; try to reallocate */
++                       res->flags |= IORESOURCE_UNSET;
++                       res->start = 0;
++                       res->end = sz64;
++                       dev_info(&dev->dev, "reg 0x%x: can't handle BAR above 4GB (bus address %#010llx)\n",
++                                pos, (unsigned long long)l64);
++                       goto out;
++               }
++       }
++
++       region.start = l64;
++       region.end = l64 + sz64;
++
++       pcibios_bus_to_resource(dev->bus, res, &region);
++       pcibios_resource_to_bus(dev->bus, &inverted_region, res);
++
++       /*
++        * If "A" is a BAR value (a bus address), "bus_to_resource(A)" is
++        * the corresponding resource address (the physical address used by
++        * the CPU.  Converting that resource address back to a bus address
++        * should yield the original BAR value:
++        *
++        *     resource_to_bus(bus_to_resource(A)) == A
++        *
++        * If it doesn't, CPU accesses to "bus_to_resource(A)" will not
++        * be claimed by the device.
++        */
++       if (inverted_region.start != region.start) {
++               res->flags |= IORESOURCE_UNSET;
++               res->start = 0;
++               res->end = region.end - region.start;
++               dev_info(&dev->dev, "reg 0x%x: initial BAR value %#010llx invalid\n",
++                        pos, (unsigned long long)region.start);
++       }
++
++       goto out;
++
++
++fail:
++       res->flags = 0;
++out:
++       if (res->flags)
++               dev_printk(KERN_DEBUG, &dev->dev, "reg 0x%x: %pR\n", pos, res);
++
++       return (res->flags & IORESOURCE_MEM_64) ? 1 : 0;
++}
++
++static int is_known_device(struct pci_dev *dev, int pos, int *sz)
++{
++       /* Red Hat, Inc : Virtio network device */
++        if (dev->vendor == 0x1af4 && dev->device == 0x1000) {
++                if (pos == 0x10) {
++                        *sz = 0xffffffe1;
++                        return 1;
++                }
++                if (pos == 0x14) {
++                        *sz = 0xfffff000;
++                        return 1;
++                }
++        }
++       /* Red Hat, Inc : Virtio block device */
++        if (dev->vendor == 0x1af4 && dev->device == 0x1001) {
++                if (pos == 0x10) {
++                        *sz = 0xffffffc1;
++                        return 1;
++                }
++                if (pos == 0x14) {
++                        *sz = 0xfffff000;
++                        return 1;
++                }
++        }
++        return 0;
++}
++
+ /**
+  * pci_read_base - read a PCI BAR
+  * @dev: the PCI device
+@@ -182,6 +335,9 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
+ 
+        mask = type ? PCI_ROM_ADDRESS_MASK : ~0;
+ 
++       if (is_known_device(dev, pos, &sz))
++               return __pci_read_base_shortcut(dev, type, res, pos, sz, 0);
++
+        res->name = pci_name(dev);
+ 
+        printk("clr: Starting probe for %s\n", res->name);
+-- 
+2.11.1
+
diff --git a/patches/boot_time_opt_guest/0111-init-no-wait-for-the-known-devices.patch b/patches/boot_time_opt_guest/0111-init-no-wait-for-the-known-devices.patch
new file mode 100644
index 0000000..701a18d
--- /dev/null
+++ b/patches/boot_time_opt_guest/0111-init-no-wait-for-the-known-devices.patch
@@ -0,0 +1,39 @@
+From be2ab4809c6b5058fbf3cd54c0f59c56416e572c Mon Sep 17 00:00:00 2001
+From: Arjan van de Ven <arjan@linux.intel.com>
+Date: Mon, 22 Jun 2015 09:33:33 -0500
+Subject: [PATCH 111/114] init: no wait for the known devices
+
+No wait for the known devices to complete their probing
+
+Author:    Arjan van de Ven <arjan@linux.intel.com>
+
+Signed-off-by: Miguel Bernal Marin <miguel.bernal.marin@linux.intel.com>
+---
+ init/do_mounts.c | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/init/do_mounts.c b/init/do_mounts.c
+index c2de5104aad2..40725f0f5fb3 100644
+--- a/init/do_mounts.c
++++ b/init/do_mounts.c
+@@ -28,6 +28,7 @@
+ #include <linux/slab.h>
+ #include <linux/ramfs.h>
+ #include <linux/shmem_fs.h>
++#include <linux/async.h>
+ 
+ #include <linux/nfs_fs.h>
+ #include <linux/nfs_fs_sb.h>
+@@ -563,7 +564,8 @@ void __init prepare_namespace(void)
+         * For example, it is not atypical to wait 5 seconds here
+         * for the touchpad of a laptop to initialize.
+         */
+-       wait_for_device_probe();
++       //wait_for_device_probe();
++       async_synchronize_full();
+ 
+        md_run_setup();
+ 
+-- 
+2.11.1
+
diff --git a/patches/boot_time_opt_guest/0112-ksm-wakeups.patch b/patches/boot_time_opt_guest/0112-ksm-wakeups.patch
new file mode 100644
index 0000000..b131e3f
--- /dev/null
+++ b/patches/boot_time_opt_guest/0112-ksm-wakeups.patch
@@ -0,0 +1,32 @@
+From 2dc48e4b5c651691b7028991b64c935047b41b19 Mon Sep 17 00:00:00 2001
+From: Arjan van de Ven <arjan@linux.intel.com>
+Date: Mon, 14 Mar 2016 11:06:46 -0600
+Subject: [PATCH 112/114] ksm-wakeups
+
+reduce wakeups in ksm
+---
+ mm/ksm.c | 8 ++++++--
+ 1 file changed, 6 insertions(+), 2 deletions(-)
+
+diff --git a/mm/ksm.c b/mm/ksm.c
+index 9ae6011a41f8..eecd3ff669e2 100644
+--- a/mm/ksm.c
++++ b/mm/ksm.c
+@@ -1725,8 +1725,12 @@ static int ksm_scan_thread(void *nothing)
+                try_to_freeze();
+ 
+                if (ksmd_should_run()) {
+-                       schedule_timeout_interruptible(
+-                               msecs_to_jiffies(ksm_thread_sleep_millisecs));
++                       if (ksm_thread_sleep_millisecs >= 1000)
++                               schedule_timeout_interruptible(
++                                       msecs_to_jiffies(round_jiffies_relative(ksm_thread_sleep_millisecs)));
++                       else
++                               schedule_timeout_interruptible(
++                                       msecs_to_jiffies(ksm_thread_sleep_millisecs));
+                } else {
+                        wait_event_freezable(ksm_thread_wait,
+                                ksmd_should_run() || kthread_should_stop());
+-- 
+2.11.1
+
diff --git a/patches/boot_time_opt_guest/0113-init-do_mounts-recreate-dev-root.patch b/patches/boot_time_opt_guest/0113-init-do_mounts-recreate-dev-root.patch
new file mode 100644
index 0000000..047eddb
--- /dev/null
+++ b/patches/boot_time_opt_guest/0113-init-do_mounts-recreate-dev-root.patch
@@ -0,0 +1,42 @@
+From 179b7f41d5509f93cd297cc81c5d8da4a3123d9d Mon Sep 17 00:00:00 2001
+From: Miguel Bernal Marin <miguel.bernal.marin@linux.intel.com>
+Date: Fri, 20 Nov 2015 14:01:26 -0600
+Subject: [PATCH 113/114] init: do_mounts: recreate /dev/root
+
+Rootfs shows as is mounted in /dev/root, but this devices is not present in
+/dev directory.
+
+Signed-off-by: Miguel Bernal Marin <miguel.bernal.marin@linux.intel.com>
+---
+ init/do_mounts.c | 8 ++++++++
+ 1 file changed, 8 insertions(+)
+
+diff --git a/init/do_mounts.c b/init/do_mounts.c
+index 40725f0f5fb3..78b5b1dba8ca 100644
+--- a/init/do_mounts.c
++++ b/init/do_mounts.c
+@@ -550,6 +550,7 @@ void __init mount_root(void)
+ void __init prepare_namespace(void)
+ {
+        int is_floppy;
++       int err;
+ 
+        if (root_delay) {
+                printk(KERN_INFO "Waiting %d sec before mounting root device...\n",
+@@ -604,6 +605,13 @@ void __init prepare_namespace(void)
+        devtmpfs_mount("dev");
+        sys_mount(".", "/", NULL, MS_MOVE, NULL);
+        sys_chroot(".");
++#ifdef CONFIG_BLOCK
++       /* recreate the /dev/root */
++       err = create_dev("/dev/root", ROOT_DEV);
++
++       if (err < 0)
++               pr_emerg("Failed to create /dev/root: %d\n", err);
++#endif
+ }
+ 
+ static bool is_tmpfs;
+-- 
+2.11.1
+
diff --git a/patches/boot_time_opt_guest/0114-xattr-allow-setting-user.-attributes-on-symlinks-by-.patch b/patches/boot_time_opt_guest/0114-xattr-allow-setting-user.-attributes-on-symlinks-by-.patch
new file mode 100644
index 0000000..dee9058
--- /dev/null
+++ b/patches/boot_time_opt_guest/0114-xattr-allow-setting-user.-attributes-on-symlinks-by-.patch
@@ -0,0 +1,56 @@
+From 02fd2e6a7c708bf973209f9b238c5c61cbf15239 Mon Sep 17 00:00:00 2001
+From: Alan Cox <alan@linux.intel.com>
+Date: Thu, 10 Mar 2016 15:11:28 +0000
+Subject: [PATCH 114/114] xattr: allow setting user.* attributes on symlinks by
+ owner
+
+Kvmtool and clear containers supports using user attributes to label host
+files with the virtual uid/guid of the file in the container. This allows an
+end user to manage their files and a complete uid space without all the ugly
+namespace stuff.
+
+The one gap in the support is symlinks because an end user can change the
+ownership of a symbolic link. We support attributes on these files as you
+can already (as root) set security attributes on them.
+
+The current rules seem slightly over-paranoid and as we have a use case this
+patch enables updating the attributes on a symbolic link IFF you are the
+owner of the synlink (as permissions are not usually meaningful on the link
+itself).
+
+Signed-off-by: Alan Cox <alan@linux.intel.com>
+---
+ fs/xattr.c | 14 ++++++++------
+ 1 file changed, 8 insertions(+), 6 deletions(-)
+
+diff --git a/fs/xattr.c b/fs/xattr.c
+index 7e3317cf4045..e005c30acb2c 100644
+--- a/fs/xattr.c
++++ b/fs/xattr.c
+@@ -118,15 +118,17 @@ xattr_permission(struct inode *inode, const char *name, int mask)
+        }
+ 
+        /*
+-        * In the user.* namespace, only regular files and directories can have
+-        * extended attributes. For sticky directories, only the owner and
+-        * privileged users can write attributes.
++        * In the user.* namespace, only regular files, symbolic links, and
++        * directories can have extended attributes. For symbolic links and
++        * sticky directories, only the owner and privileged users can write
++        * attributes.
+         */
+        if (!strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN)) {
+-               if (!S_ISREG(inode->i_mode) && !S_ISDIR(inode->i_mode))
++               if (!S_ISREG(inode->i_mode) && !S_ISDIR(inode->i_mode) && !S_ISLNK(inode->i_mode))
+                        return (mask & MAY_WRITE) ? -EPERM : -ENODATA;
+-               if (S_ISDIR(inode->i_mode) && (inode->i_mode & S_ISVTX) &&
+-                   (mask & MAY_WRITE) && !inode_owner_or_capable(inode))
++               if (((S_ISDIR(inode->i_mode) && (inode->i_mode & S_ISVTX))
++                       || S_ISLNK(inode->i_mode)) && (mask & MAY_WRITE)
++                       && !inode_owner_or_capable(inode))
+                        return -EPERM;
+        }
+ 
+-- 
+2.11.1
+
diff --git a/patches/boot_time_opt_guest/0151-mm-Export-do_madvise.patch b/patches/boot_time_opt_guest/0151-mm-Export-do_madvise.patch
new file mode 100644
index 0000000..a6dbff7
--- /dev/null
+++ b/patches/boot_time_opt_guest/0151-mm-Export-do_madvise.patch
@@ -0,0 +1,84 @@
+From 99b4cdcce43ad0f706120bef26fef8c628c572cf Mon Sep 17 00:00:00 2001
+From: Sebastien Boeuf <sebastien.boeuf@intel.com>
+Date: Mon, 23 Jan 2017 15:03:52 -0800
+Subject: [PATCH 151/154] mm: Export do_madvise()
+
+Combined with some interesting flags madvise() system call
+allows to free memory more smartly and more efficiently than
+we could do with a simple free(). The issue is that is not
+available for kernel modules that could need it.
+
+In order to solve this lack of support, this patch exports
+do_madvise() so as to make it available to the entire kernel.
+The already existing madvise() system call is unchanged and
+now relies on this new do_madvise() function.
+
+Suggested-by: Arjan van de Ven <arjan.van.de.ven@intel.com>
+Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
+---
+ include/linux/mm.h |  2 ++
+ mm/madvise.c       | 25 +++++++++++++++++++++----
+ 2 files changed, 23 insertions(+), 4 deletions(-)
+
+diff --git a/include/linux/mm.h b/include/linux/mm.h
+index 0b5b2e4df14e..925ec25f99a8 100644
+--- a/include/linux/mm.h
++++ b/include/linux/mm.h
+@@ -2450,5 +2450,7 @@ void __init setup_nr_node_ids(void);
+ static inline void setup_nr_node_ids(void) {}
+ #endif
+ 
++extern int do_madvise(unsigned long start, size_t len_in, int behavior);
++
+ #endif /* __KERNEL__ */
+ #endif /* _LINUX_MM_H */
+diff --git a/mm/madvise.c b/mm/madvise.c
+index 93fb63e88b5e..c8bbf93d4978 100644
+--- a/mm/madvise.c
++++ b/mm/madvise.c
+@@ -618,9 +618,7 @@ madvise_behavior_valid(int behavior)
+ }
+ 
+ /*
+- * The madvise(2) system call.
+- *
+- * Applications can use madvise() to advise the kernel how it should
++ * Kernel modules can use do_madvise() to advise the kernel how it should
+  * handle paging I/O in this VM area.  The idea is to help the kernel
+  * use appropriate read-ahead and caching techniques.  The information
+  * provided is advisory only, and can be safely disregarded by the
+@@ -673,7 +671,7 @@ madvise_behavior_valid(int behavior)
+  *  -EBADF  - map exists, but area maps something that isn't a file.
+  *  -EAGAIN - a kernel resource was temporarily unavailable.
+  */
+-SYSCALL_DEFINE3(madvise, unsigned long, start, size_t, len_in, int, behavior)
++int do_madvise(unsigned long start, size_t len_in, int behavior)
+ {
+        unsigned long end, tmp;
+        struct vm_area_struct *vma, *prev;
+@@ -767,3 +765,22 @@ SYSCALL_DEFINE3(madvise, unsigned long, start, size_t, len_in, int, behavior)
+ 
+        return error;
+ }
++EXPORT_SYMBOL_GPL(do_madvise);
++
++/*
++ * The madvise(2) system call.
++ *
++ * Applications can use madvise() system call to advise the kernel how
++ * it should handle paging I/O in this VM area.  The idea is to help
++ * the kernel use appropriate read-ahead and caching techniques.  The
++ * information provided is advisory only, and can be safely disregarded
++ * by the kernel without affecting the correct operation of the application.
++ *
++ * behavior values are the same than the ones defined in madvise()
++ *
++ * return values are the same than the ones defined in madvise()
++ */
++SYSCALL_DEFINE3(madvise, unsigned long, start, size_t, len_in, int, behavior)
++{
++       return do_madvise(start, len_in, behavior);
++}
+-- 
+2.12.1
+
diff --git a/patches/boot_time_opt_guest/0152-x86-kvm-Notify-host-to-release-pages.patch b/patches/boot_time_opt_guest/0152-x86-kvm-Notify-host-to-release-pages.patch
new file mode 100644
index 0000000..5f44930
--- /dev/null
+++ b/patches/boot_time_opt_guest/0152-x86-kvm-Notify-host-to-release-pages.patch
@@ -0,0 +1,180 @@
+From d28921b5f797829e4e676f7968ae688ef96b7992 Mon Sep 17 00:00:00 2001
+From: Sebastien Boeuf <sebastien.boeuf@intel.com>
+Date: Mon, 23 Jan 2017 15:08:55 -0800
+Subject: [PATCH 152/154] x86: kvm: Notify host to release pages
+
+In context of hypervisors managing several virtual machines, we
+want those virtual machines to give the memory they used back to
+the host when they don't need it anymore.
+
+This patch introduces a new hypercall KVM_HC_RETURN_MEM, allowing
+the guest kernel to notify the host kernel when such event occurs.
+And relying on do_madvise() function that we have previously exported,
+it issues a call to this function when it receives the new hypercall.
+
+Use of do_madvise() with MADV_DONTNEED flag will allow the guest to
+ask for a new page without going through a new hypercall. Instead,
+it will be able to start using that memory again as it will get
+faulted back in as a fresh new page. That's why do_madvise() is more
+efficient than doing vm_unmap() to return some memory to the host.
+
+This patch introduces also a new sysctl kvm_madv_instant_free,
+allowing user to set MADV_FREE advice instead of MADV_DONTNEED.
+Indeed, MADV_FREE saves more performances than using MADV_DONTNEED
+because it does not zero the pages in case the memory has not been
+freed by the kernel. This can happen when there was no need for the
+kernel to get this memory back, meaning it was keeping those pages
+in the right state to be re-used by the same application.
+MADV_FREE being a very recent advice introduced in kernel 4.5, we
+only want to enable it through a sysctl in case the user want to
+use it.
+
+Suggested-by: Arjan van de Ven <arjan.van.de.ven@intel.com>
+Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
+---
+ arch/x86/kvm/x86.c            | 17 +++++++++++++++++
+ include/linux/mm.h            |  5 +++++
+ include/uapi/linux/kvm_para.h |  3 +++
+ kernel/sysctl.c               |  7 +++++++
+ mm/Makefile                   |  2 +-
+ mm/kvm.c                      | 25 +++++++++++++++++++++++++
+ 6 files changed, 58 insertions(+), 1 deletion(-)
+ create mode 100644 mm/kvm.c
+
+diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
+index 582c75311f95..683a94dd5f03 100644
+--- a/arch/x86/kvm/x86.c
++++ b/arch/x86/kvm/x86.c
+@@ -46,6 +46,7 @@
+ #include <linux/user-return-notifier.h>
+ #include <linux/srcu.h>
+ #include <linux/slab.h>
++#include <linux/mm.h>
+ #include <linux/perf_event.h>
+ #include <linux/uaccess.h>
+ #include <linux/hash.h>
+@@ -6019,6 +6020,19 @@ static void kvm_pv_kick_cpu_op(struct kvm *kvm, unsigned long flags, int apicid)
+        kvm_irq_delivery_to_apic(kvm, NULL, &lapic_irq, NULL);
+ }
+ 
++static int kvm_pv_return_mem_op(struct kvm *kvm, gpa_t gpa, size_t len)
++{
++       unsigned long start = gfn_to_hva(kvm, gpa_to_gfn(gpa));
++
++       if (len > KVM_MAX_RET_MEM_SIZE)
++               return KVM_EPERM;
++
++       if (kvm_is_error_hva(start + len))
++               return KVM_EFAULT;
++
++       return do_madvise(start, len, kvm_ret_mem_advice);
++}
++
+ void kvm_vcpu_deactivate_apicv(struct kvm_vcpu *vcpu)
+ {
+        vcpu->arch.apicv_active = false;
+@@ -6065,6 +6079,9 @@ int kvm_emulate_hypercall(struct kvm_vcpu *vcpu)
+                kvm_pv_kick_cpu_op(vcpu->kvm, a0, a1);
+                ret = 0;
+                break;
++       case KVM_HC_RETURN_MEM:
++               ret = kvm_pv_return_mem_op(vcpu->kvm, a0, a1);
++               break;
+        default:
+                ret = -KVM_ENOSYS;
+                break;
+diff --git a/include/linux/mm.h b/include/linux/mm.h
+index 925ec25f99a8..833f23d98baa 100644
+--- a/include/linux/mm.h
++++ b/include/linux/mm.h
+@@ -2303,6 +2303,11 @@ extern bool process_shares_mm(struct task_struct *p, struct mm_struct *mm);
+ extern int sysctl_drop_caches;
+ int drop_caches_sysctl_handler(struct ctl_table *, int,
+                                        void __user *, size_t *, loff_t *);
++extern int sysctl_kvm_madv_instant_free;
++extern int kvm_ret_mem_advice;
++int kvm_madv_instant_free_sysctl_handler(struct ctl_table *table, int write,
++                                        void __user *buffer, size_t *length,
++                                        loff_t *ppos);
+ #endif
+ 
+ void drop_slab(void);
+diff --git a/include/uapi/linux/kvm_para.h b/include/uapi/linux/kvm_para.h
+index bf6cd7d5cac2..7d90f77d87d0 100644
+--- a/include/uapi/linux/kvm_para.h
++++ b/include/uapi/linux/kvm_para.h
+@@ -23,6 +23,9 @@
+ #define KVM_HC_MIPS_GET_CLOCK_FREQ     6
+ #define KVM_HC_MIPS_EXIT_VM            7
+ #define KVM_HC_MIPS_CONSOLE_OUTPUT     8
++#define KVM_HC_RETURN_MEM              10
++
++#define KVM_MAX_RET_MEM_SIZE           (1 << 22) // 4MiB
+ 
+ /*
+  * hypercalls use architecture specific
+diff --git a/kernel/sysctl.c b/kernel/sysctl.c
+index c1095cdc0fe2..d8ae774fa042 100644
+--- a/kernel/sysctl.c
++++ b/kernel/sysctl.c
+@@ -1398,6 +1398,13 @@ static struct ctl_table vm_table[] = {
+                .extra1         = &one,
+                .extra2         = &four,
+        },
++       {
++               .procname       = "kvm_madv_instant_free",
++               .data           = &sysctl_kvm_madv_instant_free,
++               .maxlen         = sizeof(int),
++               .mode           = 0644,
++               .proc_handler   = kvm_madv_instant_free_sysctl_handler,
++       },
+ #ifdef CONFIG_COMPACTION
+        {
+                .procname       = "compact_memory",
+diff --git a/mm/Makefile b/mm/Makefile
+index 295bd7a..6455723 100644
+--- a/mm/Makefile
++++ b/mm/Makefile
+@@ -47,6 +47,8 @@ else
+        obj-y           += bootmem.o
+ endif
+ 
++obj-y += kvm.o
++
+ obj-$(CONFIG_ADVISE_SYSCALLS)  += fadvise.o
+ ifdef CONFIG_MMU
+        obj-$(CONFIG_ADVISE_SYSCALLS)   += madvise.o
+diff --git a/mm/kvm.c b/mm/kvm.c
+new file mode 100644
+index 000000000000..8945f6a311b9
+--- /dev/null
++++ b/mm/kvm.c
+@@ -0,0 +1,25 @@
++#include <linux/mman.h>
++
++int sysctl_kvm_madv_instant_free;
++
++int kvm_ret_mem_advice = MADV_DONTNEED;
++EXPORT_SYMBOL_GPL(kvm_ret_mem_advice);
++
++int kvm_madv_instant_free_sysctl_handler(struct ctl_table *table, int write,
++       void __user *buffer, size_t *length, loff_t *ppos)
++{
++       int ret;
++
++       ret = proc_dointvec(table, write, buffer, length, ppos);
++       if (ret)
++               return ret;
++
++#ifdef MADV_FREE
++       if (sysctl_kvm_madv_instant_free > 0)
++               kvm_ret_mem_advice = MADV_FREE;
++       else
++               kvm_ret_mem_advice = MADV_DONTNEED;
++#endif
++
++       return 0;
++}
+-- 
+2.12.1
+
diff --git a/patches/boot_time_opt_guest/0153-x86-Return-memory-from-guest-to-host-kernel.patch b/patches/boot_time_opt_guest/0153-x86-Return-memory-from-guest-to-host-kernel.patch
new file mode 100644
index 0000000..cdb876a
--- /dev/null
+++ b/patches/boot_time_opt_guest/0153-x86-Return-memory-from-guest-to-host-kernel.patch
@@ -0,0 +1,155 @@
+From 855ef164854307839c08c60688eaeac14f9a649e Mon Sep 17 00:00:00 2001
+From: Sebastien Boeuf <sebastien.boeuf@intel.com>
+Date: Mon, 23 Jan 2017 15:26:13 -0800
+Subject: [PATCH 153/154] x86: Return memory from guest to host kernel
+
+All virtual machines need memory to perform various tasks, but this
+memory is not released to the host after it is not used anymore. We
+have to wait for the termination of the virtual machine to get this
+memory back into the host.
+
+Ballooning mechanism is close but not designed for the same purpose.
+In case we hit memory limits of the system, the host predicts how much
+memory can be asked back from a guest, and it issues an hypercall to
+retrieve this memory.
+
+The solution proposed is different because it does not wait for host
+needs before to return memory, and it knows precisely how much memory
+it can return.
+
+The way to notify the host side about such a return is to rely on
+the new hypercall KVM_HC_RETURN_MEM. In order to avoid the CPU to be
+overloaded with too many hypercalls, we only return memory blocks of
+order 7 (512k blocks) and higher. This value has been found running
+memory tests using multiple threads allocating/freeing high amount
+of memory. Those tests were run for different order values, and 7 was
+the best tradeoff between the number of hypercalls issued and the
+amount of memory returned to the host.
+
+In order to limit performances impact related to this code addition,
+we check for blocks of order 7 or higher. This means it only costs an
+additional function call and a branch to perform this check.
+
+Furthermore, this code has been added to the "merge" codepath of the
+buddy allocator, which is not as sensitive as the "free" codepath.
+Not all blocks going through the "free" codepath will end up in the
+"merge" codepath because some of them won't find their free buddy.
+But this is a negligible amount since the kernel does not use many
+high order blocks directly. Instead, those bigger blocks are often
+broken into smaller chunks used as low order blocks. At the time
+those small blocks are released, they go through the merge path.
+
+Benchmarks such as ebizzy and will-it-scale have been run in order
+to make sure this patch does not affect kernel performances and no
+significant differences were observed.
+
+Suggested-by: Arjan van de Ven <arjan.van.de.ven@intel.com>
+Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
+---
+ arch/x86/include/asm/kvm_para.h | 22 ++++++++++++++++++++++
+ arch/x86/kernel/kvm.c           | 10 ++++++++++
+ include/linux/mm-arch-hooks.h   |  8 ++++++++
+ mm/page_alloc.c                 |  2 ++
+ 4 files changed, 42 insertions(+)
+
+diff --git a/arch/x86/include/asm/kvm_para.h b/arch/x86/include/asm/kvm_para.h
+index bc62e7cbf1b1..4a2f6d1adbd2 100644
+--- a/arch/x86/include/asm/kvm_para.h
++++ b/arch/x86/include/asm/kvm_para.h
+@@ -92,6 +92,28 @@ void kvm_async_pf_task_wait(u32 token);
+ void kvm_async_pf_task_wake(u32 token);
+ u32 kvm_read_and_reset_pf_reason(void);
+ extern void kvm_disable_steal_time(void);
++void kvm_arch_return_memory(struct page *page, unsigned int order);
++
++/*
++ * This order has been found in an empirical way, running memory tests
++ * through many iterations to assess the number of hypercalls issued
++ * and the amount of memory returned. In case you change this order to
++ * 6 or 8, it should not impact your performances significantly.
++ *
++ * Smaller values lead to less memory waste, but consume more CPU on
++ * hypercalls. Larger values use less CPU, but do not as precisely
++ * inform the hypervisor of which memory is free.
++ */
++#define RET_MEM_BUDDY_ORDER 7
++
++static inline void arch_buddy_merge(struct page *page, unsigned int order)
++{
++       if (order < RET_MEM_BUDDY_ORDER)
++               return;
++
++       kvm_arch_return_memory(page, order);
++}
++#define arch_buddy_merge arch_buddy_merge
+ 
+ #ifdef CONFIG_PARAVIRT_SPINLOCKS
+ void __init kvm_spinlock_init(void);
+diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
+index edbbfc854e39..14167b3f6514 100644
+--- a/arch/x86/kernel/kvm.c
++++ b/arch/x86/kernel/kvm.c
+@@ -552,6 +552,16 @@ static __init int activate_jump_labels(void)
+ }
+ arch_initcall(activate_jump_labels);
+ 
++void kvm_arch_return_memory(struct page *page, unsigned int order)
++{
++       if (!kvm_para_available())
++               return;
++
++       kvm_hypercall2(KVM_HC_RETURN_MEM,
++                      page_to_phys(page),
++                      PAGE_SIZE << order);
++}
++
+ #ifdef CONFIG_PARAVIRT_SPINLOCKS
+ 
+ /* Kick a cpu by its apicid. Used to wake up a halted vcpu */
+diff --git a/include/linux/mm-arch-hooks.h b/include/linux/mm-arch-hooks.h
+index 4efc3f56e6df..26eb3a05a8a3 100644
+--- a/include/linux/mm-arch-hooks.h
++++ b/include/linux/mm-arch-hooks.h
+@@ -12,6 +12,7 @@
+ #define _LINUX_MM_ARCH_HOOKS_H
+ 
+ #include <asm/mm-arch-hooks.h>
++#include <asm/kvm_para.h>
+ 
+ #ifndef arch_remap
+ static inline void arch_remap(struct mm_struct *mm,
+@@ -22,4 +23,11 @@ static inline void arch_remap(struct mm_struct *mm,
+ #define arch_remap arch_remap
+ #endif
+ 
++#ifndef arch_buddy_merge
++static inline void arch_buddy_merge(struct page *page, unsigned int order)
++{
++}
++#define arch_buddy_merge arch_buddy_merge
++#endif
++
+ #endif /* _LINUX_MM_ARCH_HOOKS_H */
+diff --git a/mm/page_alloc.c b/mm/page_alloc.c
+index 1460e6ad5e14..5f6e6371bc6f 100644
+--- a/mm/page_alloc.c
++++ b/mm/page_alloc.c
+@@ -64,6 +64,7 @@
+ #include <linux/page_owner.h>
+ #include <linux/kthread.h>
+ #include <linux/memcontrol.h>
++#include <linux/mm-arch-hooks.h>
+ 
+ #include <asm/sections.h>
+ #include <asm/tlbflush.h>
+@@ -855,6 +856,7 @@ static inline void __free_one_page(struct page *page,
+        }
+ 
+ done_merging:
++       arch_buddy_merge(page, order);
+        set_page_order(page, order);
+ 
+        /*
+-- 
+2.12.1
+
diff --git a/patches/boot_time_opt_guest/0154-sysctl-vm-Fine-grained-cache-shrinking.patch b/patches/boot_time_opt_guest/0154-sysctl-vm-Fine-grained-cache-shrinking.patch
new file mode 100644
index 0000000..07d4a83
--- /dev/null
+++ b/patches/boot_time_opt_guest/0154-sysctl-vm-Fine-grained-cache-shrinking.patch
@@ -0,0 +1,137 @@
+From 2c145b5233b504f5226a0f4bc44baeef33b444d8 Mon Sep 17 00:00:00 2001
+From: Sebastien Boeuf <sebastien.boeuf@intel.com>
+Date: Mon, 23 Jan 2017 15:32:39 -0800
+Subject: [PATCH 154/154] sysctl: vm: Fine-grained cache shrinking
+
+Lots of virtual machines are let in idle state for days until they
+are terminated, and they can keep a large amount of memory in their
+cache, meaning this memory cannot be used by other processes.
+
+We tried to release this memory using existing drop_caches sysctl,
+but it led to the complete cache loss while it could have been used
+whether the idle process wakes up. Indeed, the process can't find any
+available cached data and it directly affects performances to rebuild
+it from scratch.
+
+Instead, the solution we want is based on shrinking gradually system
+cache over time. This patch adds a new sysctl shrink_caches_mb so as
+to allow userspace applications indicating the kernel it should shrink
+system cache up to the amount (in MiB) specified.
+
+There is an application called "memshrinker" which uses this new
+mechanism. It runs in the background and periodically releases a
+specified amount of cache. This amount is based on the remaining
+cache on the system, and period is computed to follow a shrinking
+model. It results in saving a lot of memory for other processes
+running on the system.
+
+Suggested-by: Arjan van de Ven <arjan.van.de.ven@intel.com>
+Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
+---
+ fs/drop_caches.c   | 25 +++++++++++++++++++++++++
+ include/linux/mm.h |  4 ++++
+ kernel/sysctl.c    |  8 ++++++++
+ mm/vmscan.c        |  2 --
+ 4 files changed, 37 insertions(+), 2 deletions(-)
+
+diff --git a/fs/drop_caches.c b/fs/drop_caches.c
+index d72d52b90433..f564dfcc13a4 100644
+--- a/fs/drop_caches.c
++++ b/fs/drop_caches.c
+@@ -8,10 +8,12 @@
+ #include <linux/writeback.h>
+ #include <linux/sysctl.h>
+ #include <linux/gfp.h>
++#include <linux/swap.h>
+ #include "internal.h"
+ 
+ /* A global variable is a bit ugly, but it keeps the code simple */
+ int sysctl_drop_caches;
++int sysctl_shrink_caches_mb;
+ 
+ static void drop_pagecache_sb(struct super_block *sb, void *unused)
+ {
+@@ -67,3 +69,26 @@ int drop_caches_sysctl_handler(struct ctl_table *table, int write,
+        }
+        return 0;
+ }
++
++int shrink_caches_sysctl_handler(struct ctl_table *table, int write,
++       void __user *buffer, size_t *length, loff_t *ppos)
++{
++       int ret;
++       unsigned long nr_to_reclaim, page_reclaimed;
++
++       ret = proc_dointvec_minmax(table, write, buffer, length, ppos);
++       if (ret)
++               return ret;
++
++       nr_to_reclaim = sysctl_shrink_caches_mb * (1 << 20) / PAGE_SIZE;
++       if (write) {
++               page_reclaimed = shrink_all_memory(nr_to_reclaim);
++               if (page_reclaimed > 0)
++                       lru_add_drain_all();
++
++               if (page_reclaimed != nr_to_reclaim)
++                       return page_reclaimed;
++       }
++
++       return 0;
++}
+diff --git a/include/linux/mm.h b/include/linux/mm.h
+index 833f23d98baa..0bb66c1c31c9 100644
+--- a/include/linux/mm.h
++++ b/include/linux/mm.h
+@@ -2308,6 +2308,10 @@ extern int kvm_ret_mem_advice;
+ int kvm_madv_instant_free_sysctl_handler(struct ctl_table *table, int write,
+                                         void __user *buffer, size_t *length,
+                                         loff_t *ppos);
++extern int sysctl_shrink_caches_mb;
++int shrink_caches_sysctl_handler(struct ctl_table *table, int write,
++                                void __user *buffer, size_t *length,
++                                loff_t *ppos);
+ #endif
+ 
+ void drop_slab(void);
+diff --git a/kernel/sysctl.c b/kernel/sysctl.c
+index d8ae774fa042..5dc9a46ae212 100644
+--- a/kernel/sysctl.c
++++ b/kernel/sysctl.c
+@@ -1405,6 +1405,14 @@ static struct ctl_table vm_table[] = {
+                .mode           = 0644,
+                .proc_handler   = kvm_madv_instant_free_sysctl_handler,
+        },
++       {
++               .procname       = "shrink_caches_mb",
++               .data           = &sysctl_shrink_caches_mb,
++               .maxlen         = sizeof(int),
++               .mode           = 0644,
++               .proc_handler   = shrink_caches_sysctl_handler,
++               .extra1         = &one,
++       },
+ #ifdef CONFIG_COMPACTION
+        {
+                .procname       = "compact_memory",
+diff --git a/mm/vmscan.c b/mm/vmscan.c
+index 30a88b945a44..1198e74d1860 100644
+--- a/mm/vmscan.c
++++ b/mm/vmscan.c
+@@ -3525,7 +3525,6 @@ void wakeup_kswapd(struct zone *zone, int order, enum zone_type classzone_idx)
+        wake_up_interruptible(&pgdat->kswapd_wait);
+ }
+ 
+-#ifdef CONFIG_HIBERNATION
+ /*
+  * Try to free `nr_to_reclaim' of memory, system-wide, and return the number of
+  * freed pages.
+@@ -3564,7 +3563,6 @@ unsigned long shrink_all_memory(unsigned long nr_to_reclaim)
+ 
+        return nr_reclaimed;
+ }
+-#endif /* CONFIG_HIBERNATION */
+ 
+ /* It's optimal to keep kswapds on the same CPUs as their memory, but
+    not required for correctness.  So if the last cpu in a node goes
+-- 
+2.12.1
+
diff --git a/patches/boot_time_opt_guest/guest_boot_time_opt.scc b/patches/boot_time_opt_guest/guest_boot_time_opt.scc
new file mode 100644
index 0000000..3636c01
--- /dev/null
+++ b/patches/boot_time_opt_guest/guest_boot_time_opt.scc
@@ -0,0 +1,19 @@
+define KFEATURE_DESCRIPTION "Boot time optimization changes ported from ClearLinux , https://github.com/clearlinux-pkgs/linux-kvm"
+define KFEATURE_COMPATIBILITY all
+
+patch 0103-sysrq-skip-synchronize_rcu-if-there-is-no-old-op.patch
+patch 0104-fbcon-enable-no-blink-by-default.patch
+patch 0105-vmstats-wakeups.patch
+# Remove patch because it causes ixgvbevf to not initialize correctly in the guest
+#patch 0106-pci-probe.patch
+patch 0107-cgroup.patch
+patch 0108-smpboot-reuse-timer-calibration.patch
+patch 0109-perf.patch
+patch 0110-pci-probe-identify-known-devices.patch
+patch 0111-init-no-wait-for-the-known-devices.patch
+patch 0112-ksm-wakeups.patch
+
+patch 0151-mm-Export-do_madvise.patch
+patch 0152-x86-kvm-Notify-host-to-release-pages.patch
+patch 0153-x86-Return-memory-from-guest-to-host-kernel.patch
+patch 0154-sysctl-vm-Fine-grained-cache-shrinking.patch
diff --git a/patches/ipv4/0001-IPV4-unlock-rtnl_mutex-before-waiting-for-carrier-on.patch b/patches/ipv4/0001-IPV4-unlock-rtnl_mutex-before-waiting-for-carrier-on.patch
new file mode 100644
index 0000000..5133075
--- /dev/null
+++ b/patches/ipv4/0001-IPV4-unlock-rtnl_mutex-before-waiting-for-carrier-on.patch
@@ -0,0 +1,44 @@
+From 1828e68d8f0b99dbe388de4b6703afd90fdd7493 Mon Sep 17 00:00:00 2001
+From: Dragos Motrea <Dragos.Motrea@enea.com>
+Date: Thu, 16 Mar 2017 14:04:17 +0100
+Subject: [PATCH] IPV4: unlock rtnl_mutex before waiting for carrier on
+
+There is a race condition between ip auto configuration and the ethernet
+driver. The ip configuration is taking the rtnl_mutex in the ic_open_devs()
+function and then is waiting 120 seconds for a carrier on at least
+one network device. The driver is locked in the mutex and the carrier on
+is not sent. After 120 seconds, the mutex is unlocked and the driver is
+continuing its task execution.
+
+The mutex should be unlocked in the ip auto configuration before waiting the
+carrier on from the ethernet driver.
+
+Signed-off-by: Dragos Motrea <Dragos.Motrea@enea.com>
+---
+ net/ipv4/ipconfig.c | 3 +--
+ 1 file changed, 1 insertion(+), 2 deletions(-)
+
+diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
+index 071a785..55c95cc 100644
+--- a/net/ipv4/ipconfig.c
++++ b/net/ipv4/ipconfig.c
+@@ -254,6 +254,7 @@ static int __init ic_open_devs(void)
+                                 dev->name, able, d->xid);
+                }
+        }
++       rtnl_unlock();
+ 
+        /* no point in waiting if we could not bring up at least one device */
+        if (!ic_first_dev)
+@@ -281,8 +282,6 @@ static int __init ic_open_devs(void)
+                next_msg = jiffies + msecs_to_jiffies(CONF_CARRIER_TIMEOUT/12);
+        }
+ have_carrier:
+-       rtnl_unlock();
+-
+        *last = NULL;
+ 
+        if (!ic_first_dev) {
+-- 
+2.7.4
+
diff --git a/patches/ipv4/ipv4wait.scc b/patches/ipv4/ipv4wait.scc
new file mode 100644
index 0000000..93e8cdc
--- /dev/null
+++ b/patches/ipv4/ipv4wait.scc
@@ -0,0 +1 @@
+patch 0001-IPV4-unlock-rtnl_mutex-before-waiting-for-carrier-on.patch
diff --git a/patches/kernel_startend_msg/0001-printk-add-Enea-Linux-boot-start-end-messages.patch b/patches/kernel_startend_msg/0001-printk-add-Enea-Linux-boot-start-end-messages.patch
new file mode 100644
index 0000000..0fa8756
--- /dev/null
+++ b/patches/kernel_startend_msg/0001-printk-add-Enea-Linux-boot-start-end-messages.patch
@@ -0,0 +1,95 @@
+From b91730ba705d151577974d5fb9f5371a4569b467 Mon Sep 17 00:00:00 2001
+From: Adrian Calianu <adrian.calianu@enea.com>
+Date: Tue, 6 Jun 2017 15:47:54 +0200
+Subject: [PATCH 1/1] printk: add Enea Linux boot start/end messages
+
+Signed-off-by: Adrian Calianu <adrian.calianu@enea.com>
+---
+ arch/x86/boot/compressed/misc.c | 23 ++++++++++++-----------
+ init/main.c                     |  4 +++-
+ 2 files changed, 15 insertions(+), 12 deletions(-)
+
+diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c
+index b3c5a5f0..9fdf3c6 100644
+--- a/arch/x86/boot/compressed/misc.c
++++ b/arch/x86/boot/compressed/misc.c
+@@ -202,10 +202,10 @@ static void handle_relocations(void *output, unsigned long output_len,
+                delta = virt_addr - LOAD_PHYSICAL_ADDR;
+
+        if (!delta) {
+-               debug_putstr("No relocation needed... ");
++               /* debug_putstr("No relocation needed... "); */
+                return;
+        }
+-       debug_putstr("Performing relocations... ");
++       /* debug_putstr("Performing relocations... "); */
+
+        /*
+         * Process relocations: 32 bit relocations first then 64 bit after.
+@@ -286,7 +286,7 @@ static void parse_elf(void *output)
+                return;
+        }
+
+-       debug_putstr("Parsing ELF... ");
++       /* debug_putstr("Parsing ELF... ");*/
+
+        phdrs = malloc(sizeof(*phdrs) * ehdr.e_phnum);
+        if (!phdrs)
+@@ -360,17 +360,18 @@ asmlinkage __visible void *extract_kernel(void *rmode, memptr heap,
+        cols = boot_params->screen_info.orig_video_cols;
+
+        console_init();
+-       debug_putstr("early console in extract_kernel\n");
++       /* debug_putstr("early console in extract_kernel\n");*/
++       debug_putstr("\n");debug_putstr("Enea Linux kernel boot start\n");
+
+        free_mem_ptr     = heap;        /* Heap */
+        free_mem_end_ptr = heap + BOOT_HEAP_SIZE;
+
+        /* Report initial kernel position details. */
+-       debug_putaddr(input_data);
+-       debug_putaddr(input_len);
+-       debug_putaddr(output);
+-       debug_putaddr(output_len);
+-       debug_putaddr(kernel_total_size);
++       /*debug_putaddr(input_data);           */
++       /*debug_putaddr(input_len);             */
++       /*debug_putaddr(output);               */
++       /*debug_putaddr(output_len);         */
++       /*debug_putaddr(kernel_total_size);*/
+
+        /*
+         * The memory hole needed for the kernel is the larger of either
+@@ -401,11 +402,11 @@ asmlinkage __visible void *extract_kernel(void *rmode, memptr heap,
+                error("Destination virtual address changed when not relocatable");
+ #endif
+
+-       debug_putstr("\nDecompressing Linux... ");
++       /*debug_putstr("\nDecompressing Linux... ");*/
+        __decompress(input_data, input_len, NULL, NULL, output, output_len,
+                        NULL, error);
+        parse_elf(output);
+        handle_relocations(output, output_len, virt_addr);
+-       debug_putstr("done.\nBooting the kernel.\n");
++       /*debug_putstr("done.\nBooting the kernel.\n");*/
+        return output;
+ }
+diff --git a/init/main.c b/init/main.c
+index 8358cbe..613caa1 100644
+--- a/init/main.c
++++ b/init/main.c
+@@ -976,8 +976,10 @@ static int __ref kernel_init(void *unused)
+        if (!try_to_run_init_process("/sbin/init") ||
+            !try_to_run_init_process("/etc/init") ||
+            !try_to_run_init_process("/bin/init") ||
+-           !try_to_run_init_process("/bin/sh"))
++           !try_to_run_init_process("/bin/sh")) {
++               printk(KERN_EMERG "Enea Linux kernel boot end\n");
+                return 0;
++    }
+
+        panic("No working init found.  Try passing init= option to kernel. "
+              "See Linux Documentation/init.txt for guidance.");
+--
+2.7.4
+
diff --git a/patches/kernel_startend_msg/kernel_startend_msg.scc b/patches/kernel_startend_msg/kernel_startend_msg.scc
new file mode 100644
index 0000000..e6da49c
--- /dev/null
+++ b/patches/kernel_startend_msg/kernel_startend_msg.scc
@@ -0,0 +1,4 @@
+define KFEATURE_DESCRIPTION "Enable the kernel to output messages when it starts and ends booting"
+define KFEATURE_COMPATIBILITY all
+
+patch 0001-printk-add-Enea-Linux-boot-start-end-messages.patch