From 851755871c1f3184f4124c466e85881f17fa3226 Mon Sep 17 00:00:00 2001 From: Christian Borntraeger Date: Mon, 6 Feb 2012 10:59:02 +0100 Subject: [PATCH] KVM: s390: Sanitize fpc registers for KVM_SET_FPU commit 7eef87dc99e419b1cc051e4417c37e4744d7b661 (KVM: s390: fix register setting) added a load of the floating point control register to the KVM_SET_FPU path. Lets make sure that the fpc is valid. Signed-off-by: Christian Borntraeger Signed-off-by: Marcelo Tosatti Signed-off-by: Avi Kivity --- arch/s390/kvm/kvm-s390.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 0b91679369bc..121316ef2e15 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -460,7 +460,7 @@ int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu, int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu) { memcpy(&vcpu->arch.guest_fpregs.fprs, &fpu->fprs, sizeof(fpu->fprs)); - vcpu->arch.guest_fpregs.fpc = fpu->fpc; + vcpu->arch.guest_fpregs.fpc = fpu->fpc & FPC_VALID_MASK; restore_fp_regs(&vcpu->arch.guest_fpregs); return 0; }