From: Quan Zhou <zhouquan@xxxxxxxxxxx>
The M-mode redirects an unhandled instruction access
fault trap back to S-mode when not delegating it to
VS-mode(hedeleg). However, KVM running in HS-mode
terminates the VS-mode software when back from M-mode.
The KVM should redirect the trap back to VS-mode, and
let VS-mode trap handler decide the next step.
Signed-off-by: Quan Zhou <zhouquan@xxxxxxxxxxx>
Reviewed-by: Anup Patel <anup@xxxxxxxxxxxxxx>
Signed-off-by: Atish Patra <atishp@xxxxxxxxxxxx>
---
arch/riscv/kvm/vcpu_exit.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/riscv/kvm/vcpu_exit.c b/arch/riscv/kvm/vcpu_exit.c
index fa98e5c024b2..c9f8b2094554 100644
--- a/arch/riscv/kvm/vcpu_exit.c
+++ b/arch/riscv/kvm/vcpu_exit.c
@@ -187,6 +187,7 @@ int kvm_riscv_vcpu_exit(struct kvm_vcpu *vcpu, struct kvm_run *run,
case EXC_STORE_MISALIGNED:
case EXC_LOAD_ACCESS:
case EXC_STORE_ACCESS:
+ case EXC_INST_ACCESS:
if (vcpu->arch.guest_context.hstatus & HSTATUS_SPV) {
kvm_riscv_vcpu_trap_redirect(vcpu, trap);
ret = 1;
--
2.34.1
