From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paul Mackerras Subject: [PATCH 05/18] KVM: PPC: Book3S HV: Don't crash host on unknown guest interrupt Date: Fri, 20 Sep 2013 14:52:41 +1000 Message-ID: <1379652774-10106-6-git-send-email-paulus@samba.org> References: <1379652774-10106-1-git-send-email-paulus@samba.org> Cc: kvm@vger.kernel.org To: Alexander Graf , kvm-ppc@vger.kernel.org Return-path: In-Reply-To: <1379652774-10106-1-git-send-email-paulus@samba.org> Sender: kvm-ppc-owner@vger.kernel.org List-Id: kvm.vger.kernel.org If we come out of a guest with an interrupt that we don't know about, instead of crashing the host with a BUG(), we now return to userspace with the exit reason set to KVM_EXIT_UNKNOWN and the trap vector in the hw.hardware_exit_reason field of the kvm_run structure, as is done on x86. Note that run->exit_reason is already set to KVM_EXIT_UNKNOWN at the beginning of kvmppc_handle_exit(). Signed-off-by: Paul Mackerras --- arch/powerpc/kvm/book3s_hv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index 373e202..cce2c20 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -709,8 +709,8 @@ static int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu, printk(KERN_EMERG "trap=0x%x | pc=0x%lx | msr=0x%llx\n", vcpu->arch.trap, kvmppc_get_pc(vcpu), vcpu->arch.shregs.msr); + run->hw.hardware_exit_reason = vcpu->arch.trap; r = RESUME_HOST; - BUG(); break; } -- 1.8.4.rc3