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authorPaolo Bonzini <pbonzini@redhat.com>2019-07-19 18:15:08 +0200
committerPaolo Bonzini <pbonzini@redhat.com>2019-07-20 09:00:47 +0200
commit3b20e03a1066ab2056711166c1b41d421d1ff7b7 (patch)
tree74b83d4f1b15878751b02915bd98ea96a09004b7
parent6fc3977ccc5d3c22e851f2dce2d3ce2a0a843842 (diff)
downloadlwn-3b20e03a1066ab2056711166c1b41d421d1ff7b7.tar.gz
lwn-3b20e03a1066ab2056711166c1b41d421d1ff7b7.zip
KVM: VMX: dump VMCS on failed entry
This is useful for debugging, and is ratelimited nowadays. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
-rw-r--r--arch/x86/kvm/vmx/vmx.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 280320f74db7..a279447eb75b 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -5829,6 +5829,7 @@ static int vmx_handle_exit(struct kvm_vcpu *vcpu)
}
if (unlikely(vmx->fail)) {
+ dump_vmcs();
vcpu->run->exit_reason = KVM_EXIT_FAIL_ENTRY;
vcpu->run->fail_entry.hardware_entry_failure_reason
= vmcs_read32(VM_INSTRUCTION_ERROR);