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authorPaolo Bonzini <pbonzini@redhat.com>2013-10-17 16:50:47 +0200
committerPaolo Bonzini <pbonzini@redhat.com>2013-10-31 11:31:19 +0100
commitc67a04cb9aee0d6c0b27ab8f3f68668ed6b72897 (patch)
tree2c044ca0265cded83f7e1ef0958a55df31f08867 /arch/x86/kvm
parent46c34cb059d519601fb567b55cf45c300fea2928 (diff)
KVM: x86: fix KVM_SET_XCRS loop
The loop was always using 0 as the index. This means that any rubbish after the first element of the array went undetected. It seems reasonable to assume that no KVM userspace did that. Reviewed-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm')
-rw-r--r--arch/x86/kvm/x86.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 296154956399..6d16fc530246 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -3064,9 +3064,9 @@ static int kvm_vcpu_ioctl_x86_set_xcrs(struct kvm_vcpu *vcpu,
for (i = 0; i < guest_xcrs->nr_xcrs; i++)
/* Only support XCR0 currently */
- if (guest_xcrs->xcrs[0].xcr == XCR_XFEATURE_ENABLED_MASK) {
+ if (guest_xcrs->xcrs[i].xcr == XCR_XFEATURE_ENABLED_MASK) {
r = __kvm_set_xcr(vcpu, XCR_XFEATURE_ENABLED_MASK,
- guest_xcrs->xcrs[0].value);
+ guest_xcrs->xcrs[i].value);
break;
}
if (r)