[PATCH 23/30] KVM: PPC: booke: deliver program int on emulation failure
From: Alexander Graf <hidden>
Date: 2012-02-17 17:14:10
Also in:
kvm
Subsystem:
kernel virtual machine for powerpc (kvm/powerpc), linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
When we fail to emulate an instruction for the guest, we better go in and tell it that we failed to emulate it, by throwing an illegal instruction exception. Please beware that we basically never get around to telling the guest that we failed thanks to the debugging code right above it. If user space however decides that it wants to ignore the debug, we would at least do "the right thing" afterwards. Signed-off-by: Alexander Graf <redacted> --- arch/powerpc/kvm/booke.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index 4c1e2bc..bfb2092 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c@@ -549,13 +549,13 @@ static int emulation_exit(struct kvm_run *run, struct kvm_vcpu *vcpu) return RESUME_HOST; case EMULATE_FAIL: - /* XXX Deliver Program interrupt to guest. */ printk(KERN_CRIT "%s: emulation at %lx failed (%08x)\n", __func__, vcpu->arch.pc, vcpu->arch.last_inst); /* For debugging, encode the failing instruction and * report it to userspace. */ run->hw.hardware_exit_reason = ~0ULL << 32; run->hw.hardware_exit_reason |= vcpu->arch.last_inst; + kvmppc_core_queue_program(vcpu, ESR_PIL); return RESUME_HOST; default:
--
1.6.0.2