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-rw-r--r--arch/arm64/kvm/hyp.S8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm64/kvm/hyp.S b/arch/arm64/kvm/hyp.S
index e5836138ec42..1599701ef044 100644
--- a/arch/arm64/kvm/hyp.S
+++ b/arch/arm64/kvm/hyp.S
@@ -880,6 +880,14 @@ __kvm_hyp_panic:
bl __restore_sysregs
+ /*
+ * Make sure we have a valid host stack, and don't leave junk in the
+ * frame pointer that will give us a misleading host stack unwinding.
+ */
+ ldr x22, [x2, #CPU_GP_REG_OFFSET(CPU_SP_EL1)]
+ msr sp_el1, x22
+ mov x29, xzr
+
1: adr x0, __hyp_panic_str
adr x1, 2f
ldp x2, x3, [x1]