recipes-ti: Add recipe and patches for jailhouse support for am62xx

Add and enable Jailhouse support for TI's k3-am625-sk similarly to how other
TI platforms were added and enabled in the past by adding platform-specific
configuration variables for the root cell DTB overlay, and the Linux demo inmate
DTB, configuration, and Kernel command line settings.

Migrate the jailhouse recipe to kirkstone from dunfell.

Switch to latest upstream source tree for jailhouse. The TI Jailhouse repo has
gone stale and now upstream is really the happening place where new development
happens including for new devices such as AM62x. Hence go ahead and switch to
using the upstream repo.

Update the platform-specific config files to such that the root cell DTB overlay
gets included in the file system images.

Enable additional console on ttyS3 (usually mapped to main_uart1) and ttyS2 for
the Linux demo inmate to use.

Add patches for the Jailhouse source tree for am62xx.

Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Signed-off-by: Ricardo Salveti <ricardo@foundries.io>
Signed-off-by: Paresh Bhagat <p-bhagat@ti.com>
Signed-off-by: Ryan Eatmon <reatmon@ti.com>

1 files changed, 53 insertions, 0 deletions

diff --git a/meta-ti-extras/recipes-ti/jailhouse/files/0003-configs-arm64-k3-am625-sk-Add-VTM-memory-region.patch b/meta-ti-extras/recipes-ti/jailhouse/files/0003-configs-arm64-k3-am625-sk-Add-VTM-memory-region.patch
new file mode 100644
index 00000000..c2b68e8d
--- /dev/null
+++ b/meta-ti-extras/recipes-ti/jailhouse/files/0003-configs-arm64-k3-am625-sk-Add-VTM-memory-region.patch
@@ -0,0 +1,53 @@
+From 9c9bba78b5635531fc8946914233af8c8ac8a6f3 Mon Sep 17 00:00:00 2001
+From: Andreas Dannenberg <dannenberg@ti.com>
+Date: Fri, 4 Nov 2022 12:58:48 -0500
+Subject: [PATCH] configs: arm64: k3-am625-sk: Add VTM memory region
+
+Add the memory region for VTM to the device-specific config
+file. This fixes a runtime exception when the kernel accesses
+that memory region:
+
+<snip>
+Unhandled data read at 0xb00308(4)
+
+FATAL: unhandled trap (exception class 0x24)
+<snip>
+
+Upstream-Status: Submitted [jailhouse-dev@googlegroups.com]
+
+written by: Ricardo Salveti <ricardo@foundries.io>
+Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
+Signed-off-by: Paresh Bhagat <p-bhagat@ti.com>
+---
+ configs/arm64/k3-am625-sk.c | 9 ++++++++-
+ 1 file changed, 8 insertions(+), 1 deletion(-)
+
+diff --git a/configs/arm64/k3-am625-sk.c b/configs/arm64/k3-am625-sk.c
+index 4b0b8043..fac4eaa6 100644
+--- a/configs/arm64/k3-am625-sk.c
++++ b/configs/arm64/k3-am625-sk.c
+@@ -18,7 +18,7 @@
+ struct {
+        struct jailhouse_system header;
+        __u64 cpus[1];
+-       struct jailhouse_memory mem_regions[32];
++       struct jailhouse_memory mem_regions[33];
+        struct jailhouse_irqchip irqchips[5];
+        struct jailhouse_pci_device pci_devices[2];
+ } __attribute__((packed)) config = {
+@@ -154,6 +154,13 @@ struct {
+                        .flags = JAILHOUSE_MEM_READ | JAILHOUSE_MEM_WRITE |
+                                JAILHOUSE_MEM_IO,
+                },
++               /* Wake Up Domain VTM0 */ {
++                       .phys_start = 0x00b00000,
++                       .virt_start = 0x00b00000,
++                       .size = 0x00001000,
++                       .flags = JAILHOUSE_MEM_READ | JAILHOUSE_MEM_WRITE |
++                               JAILHOUSE_MEM_IO,
++               },
+                /* First peripheral window, 1 of 2 */ {
+                        .phys_start = 0x01000000,
+                        .virt_start = 0x01000000,
+--
+2.34.1