[PATCH 05/41] KVM: Fix bogus sign extension in mmu mapping audit

Avi Kivity
2007-04-01T14:35:02Z

When auditing a 32-bit guest on a 64-bit host, sign extension of the page
table directory pointer table index caused bogus addresses to be shown on
audit errors.

Fix by declaring the index unsigned.

Signed-off-by: Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
---
drivers/kvm/mmu.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/kvm/mmu.c b/drivers/kvm/mmu.c
index e85b4c7..266444a 100644
--- a/drivers/kvm/mmu.c
+++ b/drivers/kvm/mmu.c
@@ -1359,7 +1359,7 @@ static void audit_mappings_page(struct kvm_vcpu *vcpu, u64 page_pte,

static void audit_mappings(struct kvm_vcpu *vcpu)
{
- int i;
+ unsigned i;

if (vcpu->mmu.root_level == 4)
audit_mappings_page(vcpu, vcpu->mmu.root_hpa, 0, 4);