Without this patch, crash dump kernel won't be able to boot if a kvm
guest is running at crash. This is because we don't have any chance
to reset EL2 mode at crash and so "switch to EL2" in cpu_reset fails.
Signed-off-by: AKASHI Takahiro <takahiro.akashi at linaro.org>
---
arch/arm64/kernel/machine_kexec.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/kernel/machine_kexec.c b/arch/arm64/kernel/machine_kexec.c
index 0edb7ee..d14dd05 100644
--- a/arch/arm64/kernel/machine_kexec.c
+++ b/arch/arm64/kernel/machine_kexec.c
@@ -271,7 +271,7 @@ static void soft_restart(unsigned long addr)
{
setup_mm_for_reboot();
cpu_soft_restart(virt_to_phys(cpu_reset), addr,
- is_hyp_mode_available());
+ (in_crash_kexec ? 0 : is_hyp_mode_available()));
BUG(); /* Should never get here. */
}
--
1.7.9.5
