[PATCH V4 2/2] LoongArch: KVM: fix "unreliable stack" issue

[Xianglai Li]

Insert the appropriate UNWIND macro definition into the kvm_exc_entry in
the assembly function to guide the generation of correct ORC table entries,
thereby solving the timeout problem of loading the livepatch-sample module
on a physical machine running multiple vcpus virtual machines.

Signed-off-by: Xianglai Li <lixianglai@xxxxxxxxxxx>
---
Cc: Huacai Chen <chenhuacai@xxxxxxxxxx>
Cc: Tianrui Zhao <zhaotianrui@xxxxxxxxxxx>
Cc: Bibo Mao <maobibo@xxxxxxxxxxx>

 arch/loongarch/kvm/switch.S | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/loongarch/kvm/switch.S b/arch/loongarch/kvm/switch.S
index 1a5636790ef9..29cf6704296e 100644
--- a/arch/loongarch/kvm/switch.S
+++ b/arch/loongarch/kvm/switch.S
@@ -114,7 +114,7 @@
 	.p2align PAGE_SHIFT
 	.cfi_sections	.debug_frame
 SYM_CODE_START(kvm_exc_entry)
-	UNWIND_HINT_UNDEFINED
+	UNWIND_HINT_END_OF_STACK
 	csrwr	a2,   KVM_TEMP_KS
 	csrrd	a2,   KVM_VCPU_KS
 	addi.d	a2,   a2, KVM_VCPU_ARCH
-- 
2.39.1