From: Julien Thierry <jthierry@xxxxxxxxxx> Symbol __guest_enter is called from C code, with a valid stack pointer. Symbol __guest_exit is reached when resuming EL2 execution, and the previous stack pointer gets restored. Add adequate unwind hints. Signed-off-by: Julien Thierry <jthierry@xxxxxxxxxx> --- arch/arm64/kvm/hyp/entry.S | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm64/kvm/hyp/entry.S b/arch/arm64/kvm/hyp/entry.S index 045d4481c820..0c621b8389e2 100644 --- a/arch/arm64/kvm/hyp/entry.S +++ b/arch/arm64/kvm/hyp/entry.S @@ -15,6 +15,7 @@ #include <asm/kvm_mmu.h> #include <asm/kvm_mte.h> #include <asm/kvm_ptrauth.h> +#include <asm/unwind_hints.h> .text @@ -22,6 +23,7 @@ * u64 __guest_enter(struct kvm_vcpu *vcpu); */ SYM_CODE_START(__guest_enter) + UNWIND_HINT_FUNC // x0: vcpu // x1-x17: clobbered by macros // x29: guest context @@ -110,6 +112,7 @@ SYM_INNER_LABEL(__guest_exit, SYM_L_GLOBAL) // x1: vcpu // x2-x29,lr: vcpu regs // vcpu x0-x1 on the stack + UNWIND_HINT_FUNC sp_offset=16 add x1, x1, #VCPU_CONTEXT -- 2.17.1
