linux-kernel - [PATCH 4/8] KVM: SVM: Propagate nested entry failure into guest hypervisor

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Date:	Thu, 22 Apr 2010 12:33:10 +0200
From:	Joerg Roedel <joerg.roedel@....com>
To:	Avi Kivity <avi@...hat.com>, Marcelo Tosatti <mtosatti@...hat.com>
CC:	kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
	Joerg Roedel <joerg.roedel@....com>
Subject: [PATCH 4/8] KVM: SVM: Propagate nested entry failure into guest hypervisor

This patch implements propagation of a failes guest vmrun
back into the guest instead of killing the whole guest.

Signed-off-by: Joerg Roedel <joerg.roedel@....com>
---
 arch/x86/kvm/svm.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 5ad9d80..b10d163 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -1715,6 +1715,10 @@ static int nested_svm_intercept(struct vcpu_svm *svm)
 			vmexit = NESTED_EXIT_DONE;
 		break;
 	}
+	case SVM_EXIT_ERR: {
+		vmexit = NESTED_EXIT_DONE;
+		break;
+	}
 	default: {
 		u64 exit_bits = 1ULL << (exit_code - SVM_EXIT_INTR);
 		if (svm->nested.intercept & exit_bits)
-- 
1.7.0.4


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