forked from Minki/linux
KVM: s390: Sanitize fpc registers for KVM_SET_FPU
commit 7eef87dc99
(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 <borntraeger@de.ibm.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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parent
6dbf79e716
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@ -460,7 +460,7 @@ int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
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int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
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{
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memcpy(&vcpu->arch.guest_fpregs.fprs, &fpu->fprs, sizeof(fpu->fprs));
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vcpu->arch.guest_fpregs.fpc = fpu->fpc;
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vcpu->arch.guest_fpregs.fpc = fpu->fpc & FPC_VALID_MASK;
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restore_fp_regs(&vcpu->arch.guest_fpregs);
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return 0;
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}
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