diff options
| author | Xianglai Li <lixianglai@loongson.cn> | 2026-05-04 04:00:37 +0300 |
|---|---|---|
| committer | Huacai Chen <chenhuacai@loongson.cn> | 2026-05-04 04:00:37 +0300 |
| commit | b323a441da602dfdfc24f30d3190cac786ffebf2 (patch) | |
| tree | e411304b0c41dbda8db45923840bb01588201137 | |
| parent | 5203012fa6045aac4b69d4e7c212e16dcf38ef10 (diff) | |
| download | linux-b323a441da602dfdfc24f30d3190cac786ffebf2.tar.xz | |
LoongArch: KVM: Fix "unreliable stack" for kvm_exc_entry
Insert the appropriate UNWIND hint into the kvm_exc_entry assembly
function to guide the generation of correct ORC table entries, thereby
solving the timeout problem ("unreliable stack") while loading the
livepatch-sample module on a physical machine running virtual machines
with multiple vcpus.
Cc: stable@vger.kernel.org
Signed-off-by: Xianglai Li <lixianglai@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
| -rw-r--r-- | arch/loongarch/kvm/switch.S | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/loongarch/kvm/switch.S b/arch/loongarch/kvm/switch.S index 1d3ba7190154..936e4ae3e408 100644 --- a/arch/loongarch/kvm/switch.S +++ b/arch/loongarch/kvm/switch.S @@ -111,7 +111,7 @@ .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 |