linux-kernel - [PATCH] KVM: vmx: pass error code with internal error #2

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Message-Id: <1428001865-32280-1-git-send-email-rkrcmar@redhat.com>
Date:	Thu,  2 Apr 2015 21:11:05 +0200
From:	Radim Krčmář <rkrcmar@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	kvm@...r.kernel.org, Paolo Bonzini <pbonzini@...hat.com>
Subject: [PATCH] KVM: vmx: pass error code with internal error #2

Exposing the on-stack error code with internal error is cheap and
potentially useful.

Signed-off-by: Radim Krčmář <rkrcmar@...hat.com>
---
 arch/x86/kvm/vmx.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 0caaf56eb459..cfbd737afcd1 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -5089,9 +5089,10 @@ static int handle_exception(struct kvm_vcpu *vcpu)
 	    !(is_page_fault(intr_info) && !(error_code & PFERR_RSVD_MASK))) {
 		vcpu->run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
 		vcpu->run->internal.suberror = KVM_INTERNAL_ERROR_SIMUL_EX;
-		vcpu->run->internal.ndata = 2;
+		vcpu->run->internal.ndata = 3;
 		vcpu->run->internal.data[0] = vect_info;
 		vcpu->run->internal.data[1] = intr_info;
+		vcpu->run->internal.data[2] = error_code;
 		return 0;
 	}
 
-- 
2.3.4

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