From: Paul Mackerras Date: Fri, 20 Sep 2013 04:52:41 +0000 (+1000) Subject: KVM: PPC: Book3S HV: Don't crash host on unknown guest interrupt X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=f3271d4c9011bf5f36a65b9b5e7caaef4280686d;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git KVM: PPC: Book3S HV: Don't crash host on unknown guest interrupt 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 Signed-off-by: Alexander Graf --- diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index e42fb5448608..de9520f9241f 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; }