1 files changed, 43 insertions, 0 deletions
diff --git a/meta-agl-devel/meta-agl-jailhouse/recipes-kernel/linux/linux/0004-arm-Export-__boot_cpu_mode-for-use-in-Jailhouse-driv.patch b/meta-agl-devel/meta-agl-jailhouse/recipes-kernel/linux/linux/0004-arm-Export-__boot_cpu_mode-for-use-in-Jailhouse-driv.patch
new file mode 100644
index 00000000..6e4470f0
--- /dev/null
+++ b/meta-agl-devel/meta-agl-jailhouse/recipes-kernel/linux/linux/0004-arm-Export-__boot_cpu_mode-for-use-in-Jailhouse-driv.patch
@@ -0,0 +1,43 @@
+From 56e5aace5a675af0557b87a137b98e40454d8e22 Mon Sep 17 00:00:00 2001
+From: Jan Kiszka <jan.kiszka@siemens.com>
+Date: Sun, 3 Jul 2016 10:02:40 +0200
+Subject: [PATCH 04/32] arm: Export __boot_cpu_mode for use in Jailhouse driver
+ module
+
+Onlining a CPU while Jailhouse was running sets BOOT_CPU_MODE_MISMATCH
+because the kernel detect that the CPU will now only come up in SVC
+mode. Therefore, we need to fix up the flag after disabling Jailhouse
+again.
+
+Moreover, exporting the symbol allows to use is_hyp_mode_available() in
+the driver, thus prevents us from crashing during Jailhouse activation
+when there is no hyp stub installed.
+
+Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
+---
+ arch/arm/kernel/armksyms.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/arch/arm/kernel/armksyms.c b/arch/arm/kernel/armksyms.c
+index 98bdea51089d..f2fa635bccf7 100644
+--- a/arch/arm/kernel/armksyms.c
++++ b/arch/arm/kernel/armksyms.c
+@@ -17,6 +17,7 @@
+ 
+ #include <asm/checksum.h>
+ #include <asm/ftrace.h>
++#include <asm/virt.h>
+ 
+ /*
+  * libgcc functions - functions that are used internally by the
+@@ -176,3 +177,7 @@ EXPORT_SYMBOL(__pv_offset);
+ EXPORT_SYMBOL(__arm_smccc_smc);
+ EXPORT_SYMBOL(__arm_smccc_hvc);
+ #endif
++
++#ifdef CONFIG_ARM_VIRT_EXT
++EXPORT_SYMBOL_GPL(__boot_cpu_mode);
++#endif
+-- 
+2.11.0
+