qemu: Drop vm reservation changes to resolve build issues

When building with the new version of qemu we see errors like:

"""
qemu-i386: Unable to reserve 0x7ffff000 bytes of virtual address space at
0x1000 (Success) for use as guest address space (check your virtual memory
ulimit setting, min_mmap_addr or reserve less using -R option)

ERROR: The postinstall intercept hook 'update_gio_module_cache-nativesdk' failed
"""

The VM reseration patches we're carrying look suspicious in this context.
Drop them since the patches appear to be a liability causing other issues
and there is a much  simpler fix for the webkitgtk issues on musl on
32 bit (see later linux-user mmap patches).

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
(From OE-Core rev: 8a0efb16ca7cf22902fac743718c776b57c6d2f6)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

3 files changed, 0 insertions, 172 deletions

diff --git a/meta/recipes-devtools/qemu/qemu.inc b/meta/recipes-devtools/qemu/qemu.inc
index 23d0adb901..4c1502da7f 100644
--- a/meta/recipes-devtools/qemu/qemu.inc
+++ b/meta/recipes-devtools/qemu/qemu.inc
@@ -23,8 +23,6 @@ SRC_URI = "https://download.qemu.org/${BPN}-${PV}.tar.xz \
            file://0004-qemu-disable-Valgrind.patch \
            file://0006-chardev-connect-socket-to-a-spawned-command.patch \
            file://0007-apic-fixup-fallthrough-to-PIC.patch \
-           file://0008-linux-user-Fix-webkitgtk-hangs-on-32-bit-x86-target.patch \
-           file://0009-Fix-webkitgtk-builds.patch \
            file://0010-configure-Add-pkg-config-handling-for-libgcrypt.patch \
            file://0001-Add-enable-disable-udev.patch \
            file://0001-qemu-Do-not-include-file-if-not-exists.patch \
diff --git a/meta/recipes-devtools/qemu/qemu/0008-linux-user-Fix-webkitgtk-hangs-on-32-bit-x86-target.patch b/meta/recipes-devtools/qemu/qemu/0008-linux-user-Fix-webkitgtk-hangs-on-32-bit-x86-target.patch
deleted file mode 100644
index 74621a08e8..0000000000
--- a/meta/recipes-devtools/qemu/qemu/0008-linux-user-Fix-webkitgtk-hangs-on-32-bit-x86-target.patch
+++ /dev/null
@@ -1,33 +0,0 @@
-From cf8c9aac5243f506a1a3e8e284414f311cde04f5 Mon Sep 17 00:00:00 2001
-From: Alistair Francis <alistair.francis@xilinx.com>
-Date: Wed, 17 Jan 2018 10:51:49 -0800
-Subject: [PATCH] linux-user: Fix webkitgtk hangs on 32-bit x86 target
-
-Since commit "linux-user: Tidy and enforce reserved_va initialization"
-(18e80c55bb6ec17c05ec0ba717ec83933c2bfc07) the Yocto webkitgtk build
-hangs when cross compiling for 32-bit x86 on a 64-bit x86 machine using
-musl.
-
-To fix the issue reduce the MAX_RESERVED_VA macro to be a closer match
-to what it was before the problematic commit.
-
-Upstream-Status: Submitted http://lists.gnu.org/archive/html/qemu-devel/2018-01/msg04185.html
-Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
-
----
- linux-user/main.c | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-Index: qemu-5.2.0/linux-user/main.c
-===================================================================
---- qemu-5.2.0.orig/linux-user/main.c
-+++ qemu-5.2.0/linux-user/main.c
-@@ -92,7 +92,7 @@ static int last_log_mask;
-       (TARGET_LONG_BITS == 32 || defined(TARGET_ABI32))
- /* There are a number of places where we assign reserved_va to a variable
-    of type abi_ulong and expect it to fit.  Avoid the last page.  */
--#   define MAX_RESERVED_VA(CPU)  (0xfffffffful & TARGET_PAGE_MASK)
-+#   define MAX_RESERVED_VA(CPU)  (0x7ffffffful & TARGET_PAGE_MASK)
- #  else
- #   define MAX_RESERVED_VA(CPU)  (1ul << TARGET_VIRT_ADDR_SPACE_BITS)
- #  endif
diff --git a/meta/recipes-devtools/qemu/qemu/0009-Fix-webkitgtk-builds.patch b/meta/recipes-devtools/qemu/qemu/0009-Fix-webkitgtk-builds.patch
deleted file mode 100644
index 2ddc09966c..0000000000
--- a/meta/recipes-devtools/qemu/qemu/0009-Fix-webkitgtk-builds.patch
+++ /dev/null
@@ -1,137 +0,0 @@
-From 815c97ba0de02da9dace3fcfcbdf9b20e029f0d7 Mon Sep 17 00:00:00 2001
-From: Martin Jansa <martin.jansa@lge.com>
-Date: Fri, 1 Jun 2018 08:41:07 +0000
-Subject: [PATCH] Fix webkitgtk builds
-
-This is a partial revert of "linux-user: fix mmap/munmap/mprotect/mremap/shmat".
-
-This patch fixes qemu-i386 hangs during gobject-introspection in webkitgtk build
-when musl is used on qemux86. This is the same issue that
-0008-linux-user-Fix-webkitgtk-hangs-on-32-bit-x86-target.patch was
-fixing in the 2.11 release.
-
-This patch also fixes a build failure when building webkitgtk for
-qemumips. A QEMU assert is seen while building webkitgtk:
-page_check_range: Assertion `start < ((target_ulong)1 << L1_MAP_ADDR_SPACE_BITS)' failed.
-
-This reverts commit ebf9a3630c911d0cfc9c20f7cafe9ba4f88cf583.
-
-Upstream-Status: Pending
-Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
-
-[update patch context]
-Signed-off-by: Sakib Sajal <sakib.sajal@windriver.com>
----
- include/exec/cpu-all.h  |  6 +-----
- include/exec/cpu_ldst.h |  5 ++++-
- linux-user/mmap.c       | 17 ++++-------------
- linux-user/syscall.c    |  5 +----
- 4 files changed, 10 insertions(+), 23 deletions(-)
-
-Index: qemu-5.2.0/include/exec/cpu-all.h
-===================================================================
---- qemu-5.2.0.orig/include/exec/cpu-all.h
-+++ qemu-5.2.0/include/exec/cpu-all.h
-@@ -176,11 +176,8 @@ extern unsigned long reserved_va;
-  * avoid setting bits at the top of guest addresses that might need
-  * to be used for tags.
-  */
--#define GUEST_ADDR_MAX_                                                 \
--    ((MIN_CONST(TARGET_VIRT_ADDR_SPACE_BITS, TARGET_ABI_BITS) <= 32) ?  \
--     UINT32_MAX : ~0ul)
--#define GUEST_ADDR_MAX    (reserved_va ? reserved_va - 1 : GUEST_ADDR_MAX_)
--
-+#define GUEST_ADDR_MAX (reserved_va ? reserved_va : \
-+                                     (1ul << TARGET_VIRT_ADDR_SPACE_BITS) - 1)
- #else
- 
- #include "exec/hwaddr.h"
-Index: qemu-5.2.0/include/exec/cpu_ldst.h
-===================================================================
---- qemu-5.2.0.orig/include/exec/cpu_ldst.h
-+++ qemu-5.2.0/include/exec/cpu_ldst.h
-@@ -75,7 +75,10 @@ typedef uint64_t abi_ptr;
- #if HOST_LONG_BITS <= TARGET_VIRT_ADDR_SPACE_BITS
- #define guest_addr_valid(x) (1)
- #else
--#define guest_addr_valid(x) ((x) <= GUEST_ADDR_MAX)
-+#define guest_addr_valid(x) ({ \
-+    ((x) < (1ul << TARGET_VIRT_ADDR_SPACE_BITS)) && \
-+    (!reserved_va || ((x) < reserved_va)); \
-+})
- #endif
- #define h2g_valid(x) guest_addr_valid((unsigned long)(x) - guest_base)
- 
-Index: qemu-5.2.0/linux-user/mmap.c
-===================================================================
---- qemu-5.2.0.orig/linux-user/mmap.c
-+++ qemu-5.2.0/linux-user/mmap.c
-@@ -119,7 +119,7 @@ int target_mprotect(abi_ulong start, abi
-     }
-     len = TARGET_PAGE_ALIGN(len);
-     end = start + len;
--    if (!guest_range_valid(start, len)) {
-+    if (end < start) {
-         return -TARGET_ENOMEM;
-     }
-     if (len == 0) {
-@@ -527,8 +527,8 @@ abi_long target_mmap(abi_ulong start, ab
-          * It can fail only on 64-bit host with 32-bit target.
-          * On any other target/host host mmap() handles this error correctly.
-          */
--        if (end < start || !guest_range_valid(start, len)) {
--            errno = ENOMEM;
-+        if (end < start || ((unsigned long)start + len - 1 > (abi_ulong) -1)) {
-+            errno = EINVAL;
-             goto fail;
-         }
- 
-@@ -664,10 +664,8 @@ int target_munmap(abi_ulong start, abi_u
-     if (start & ~TARGET_PAGE_MASK)
-         return -TARGET_EINVAL;
-     len = TARGET_PAGE_ALIGN(len);
--    if (len == 0 || !guest_range_valid(start, len)) {
-+    if (len == 0)
-         return -TARGET_EINVAL;
--    }
--
-     mmap_lock();
-     end = start + len;
-     real_start = start & qemu_host_page_mask;
-@@ -722,13 +720,6 @@ abi_long target_mremap(abi_ulong old_add
-     int prot;
-     void *host_addr;
- 
--    if (!guest_range_valid(old_addr, old_size) ||
--        ((flags & MREMAP_FIXED) &&
--         !guest_range_valid(new_addr, new_size))) {
--        errno = ENOMEM;
--        return -1;
--    }
--
-     mmap_lock();
- 
-     if (flags & MREMAP_FIXED) {
-Index: qemu-5.2.0/linux-user/syscall.c
-===================================================================
---- qemu-5.2.0.orig/linux-user/syscall.c
-+++ qemu-5.2.0/linux-user/syscall.c
-@@ -4590,9 +4590,6 @@ static inline abi_ulong do_shmat(CPUArch
-             return -TARGET_EINVAL;
-         }
-     }
--    if (!guest_range_valid(shmaddr, shm_info.shm_segsz)) {
--        return -TARGET_EINVAL;
--    }
- 
-     mmap_lock();
- 
-@@ -7790,7 +7787,7 @@ static int open_self_maps(void *cpu_env,
-             const char *path;
- 
-             max = h2g_valid(max - 1) ?
--                max : (uintptr_t) g2h(GUEST_ADDR_MAX) + 1;
-+                max : (uintptr_t) g2h(GUEST_ADDR_MAX);
- 
-             if (page_check_range(h2g(min), max - min, flags) == -1) {
-                 continue;