From: Avi Kivity <avi@redhat.com>
To: stable@vger.kernel.org
Cc: Marcelo Tosatti <mtosatti@redhat.com>, kvm@vger.kernel.org
Subject: [PATCH 02/11] KVM: s390: Sanitize fpc registers for KVM_SET_FPU
Date: Wed, 9 May 2012 16:10:38 +0300 [thread overview]
Message-ID: <1336569047-23576-3-git-send-email-avi@redhat.com> (raw)
In-Reply-To: <1336569047-23576-1-git-send-email-avi@redhat.com>
From: Christian Borntraeger <borntraeger@de.ibm.com>
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 <borntraeger@de.ibm.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
(cherry picked from commit 851755871c1f3184f4124c466e85881f17fa3226)
---
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 d1c44573..d3cb86c 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -418,7 +418,7 @@ 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;
}
--
1.7.10.1
next prev parent reply other threads:[~2012-05-09 13:11 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-09 13:10 [PATCH 00/11] KVM fixes for 3.3.5 Avi Kivity
2012-05-09 13:10 ` [PATCH 01/11] KVM: s390: do store status after handling STOP_ON_STOP bit Avi Kivity
2012-05-09 13:10 ` Avi Kivity [this message]
2012-05-09 13:10 ` [PATCH 03/11] KVM: Fix write protection race during dirty logging Avi Kivity
2012-05-09 13:10 ` [PATCH 04/11] KVM: mmu_notifier: Flush TLBs before releasing mmu_lock Avi Kivity
2012-05-09 13:10 ` [PATCH 05/11] KVM: x86 emulator: correctly mask pmc index bits in RDPMC instruction emulation Avi Kivity
2012-05-09 13:10 ` [PATCH 06/11] KVM: Ensure all vcpus are consistent with in-kernel irqchip settings Avi Kivity
2012-05-09 13:10 ` [PATCH 07/11] KVM: VMX: Fix delayed load of shared MSRs Avi Kivity
2012-05-09 13:10 ` [PATCH 08/11] KVM: nVMX: Fix erroneous exception bitmap check Avi Kivity
2012-05-09 13:10 ` [PATCH 09/11] KVM: VMX: vmx_set_cr0 expects kvm->srcu locked Avi Kivity
2012-05-09 13:10 ` [PATCH 10/11] KVM: VMX: Fix kvm_set_shared_msr() called in preemptible context Avi Kivity
2012-05-09 13:10 ` [PATCH 11/11] KVM: lock slots_lock around device assignment Avi Kivity
2012-05-10 16:28 ` [PATCH 00/11] KVM fixes for 3.3.5 Greg KH
2012-05-12 0:35 ` Ben Hutchings
2012-05-13 9:23 ` Avi Kivity
2012-05-13 10:19 ` Ben Hutchings
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