From 7f1ea208968f021943d4103ba59e06bb6d8239cb Mon Sep 17 00:00:00 2001
From: Joerg Roedel <joerg.roedel@amd.com>
Date: Wed, 25 Feb 2009 16:08:31 +0100
Subject: [PATCH] KVM: x86: release time_page on vcpu destruction
Not releasing the time_page causes a leak of that page or the compound
page it is situated in.
Cc: stable@kernel.org
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
---
arch/x86/kvm/x86.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 8ca100a9ecac..a1ecec5c03e9 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -4159,6 +4159,11 @@ EXPORT_SYMBOL_GPL(kvm_put_guest_fpu);
void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu)
{
+ if (vcpu->arch.time_page) {
+ kvm_release_page_dirty(vcpu->arch.time_page);
+ vcpu->arch.time_page = NULL;
+ }
+
kvm_x86_ops->vcpu_free(vcpu);
}