linux-kernel - [PATCH 018/104] KVM: Return if the pdptrs are invalid when the guest turns on PAE.

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Message-Id: <11900179472967-git-send-email-avi@qumranet.com>
Date:	Mon, 17 Sep 2007 10:31:00 +0200
From:	Avi Kivity <avi@...ranet.com>
To:	kvm-devel@...ts.sourceforge.net
Cc:	linux-kernel@...r.kernel.org, Rusty Russell <rusty@...tcorp.com.au>
Subject: [PATCH 018/104] KVM: Return if the pdptrs are invalid when the guest turns on PAE.

From: Rusty Russell <rusty@...tcorp.com.au>

Don't fall through and turn on PAE in this case.

Signed-off-by: Rusty Russell <rusty@...tcorp.com.au>
Signed-off-by: Avi Kivity <avi@...ranet.com>
---
 drivers/kvm/kvm_main.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c
index f0fc8d9..093cea3 100644
--- a/drivers/kvm/kvm_main.c
+++ b/drivers/kvm/kvm_main.c
@@ -558,6 +558,7 @@ void set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
 		   && !load_pdptrs(vcpu, vcpu->cr3)) {
 		printk(KERN_DEBUG "set_cr4: #GP, pdptrs reserved bits\n");
 		inject_gp(vcpu);
+		return;
 	}

 	if (cr4 & X86_CR4_VMXE) {
-- 
1.5.3

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