From 91314cb0053877991fd7b4749bb4b54d6bd6992f Mon Sep 17 00:00:00 2001 From: Wei Huang Date: Fri, 30 Jan 2015 13:09:26 -0500 Subject: arm/arm64: KVM: Add exit reaons to kvm_exit event tracing This patch extends trace_kvm_exit() to include KVM exit reasons (i.e. EC of HSR). The tracing function then dumps both exit reason and PC of vCPU, shown as the following. Tracing tools can use this new exit_reason field to better understand the behavior of guest VMs. 886.301252: kvm_exit: HSR_EC: 0x0024, PC: 0xfffffe0000506b28 Signed-off-by: Wei Huang Signed-off-by: Christoffer Dall --- arch/arm/kvm/arm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/arm/kvm/arm.c') diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c index 07e7eb1d7ab6..5560f74f9eee 100644 --- a/arch/arm/kvm/arm.c +++ b/arch/arm/kvm/arm.c @@ -540,7 +540,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run) vcpu->mode = OUTSIDE_GUEST_MODE; kvm_guest_exit(); - trace_kvm_exit(*vcpu_pc(vcpu)); + trace_kvm_exit(kvm_vcpu_trap_get_class(vcpu), *vcpu_pc(vcpu)); /* * We may have taken a host interrupt in HYP mode (ie * while executing the guest). This interrupt is still -- cgit v1.2.3