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KVM: x86: fix KVM_SET_XCRS loop

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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>
This commit is contained in:
Paolo Bonzini 2013-10-17 16:50:47 +02:00
parent 46c34cb059
commit c67a04cb9a
1 changed files with 2 additions and 2 deletions
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4
arch/x86/kvm/x86.c
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@ -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)