From: Paolo Bonzini <pbonzini@redhat.com>
To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Subject: [PATCH] KVM: VMX: dump VMCS on failed entry
Date: Fri, 19 Jul 2019 18:42:12 +0200 [thread overview]
Message-ID: <1563554534-46556-1-git-send-email-pbonzini@redhat.com> (raw)
This is useful for debugging, and is ratelimited nowadays.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
arch/x86/kvm/vmx/vmx.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 69536553446d..c7ee5ead1565 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);
--
1.8.3.1
next reply other threads:[~2019-07-19 16:42 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-19 16:42 Paolo Bonzini [this message]
2019-07-19 21:02 ` [PATCH] KVM: VMX: dump VMCS on failed entry Liran Alon
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