This is a note to let you know that I've just added the patch titled
KVM: s390: Sanitize fpc registers for KVM_SET_FPU
to the 3.3-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
kvm-s390-sanitize-fpc-registers-for-kvm_set_fpu.patch
and it can be found in the queue-3.3 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From [email protected] Wed May 9 06:14:27 2012
From: Avi Kivity <[email protected]>
Date: Wed, 9 May 2012 16:10:38 +0300
Subject: KVM: s390: Sanitize fpc registers for KVM_SET_FPU
To: [email protected]
Cc: Marcelo Tosatti <[email protected]>, [email protected]
Message-ID: <[email protected]>
From: Christian Borntraeger <[email protected]>
(cherry picked from commit 851755871c1f3184f4124c466e85881f17fa3226)
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 <[email protected]>
Signed-off-by: Marcelo Tosatti <[email protected]>
Signed-off-by: Avi Kivity <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
arch/s390/kvm/kvm-s390.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- 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
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;
}
Patches currently in stable-queue which might be from [email protected] are
queue-3.3/kvm-s390-do-store-status-after-handling-stop_on_stop-bit.patch
queue-3.3/kvm-nvmx-fix-erroneous-exception-bitmap-check.patch
queue-3.3/kvm-s390-sanitize-fpc-registers-for-kvm_set_fpu.patch
queue-3.3/kvm-x86-emulator-correctly-mask-pmc-index-bits-in-rdpmc-instruction-emulation.patch
queue-3.3/kvm-mmu_notifier-flush-tlbs-before-releasing-mmu_lock.patch
queue-3.3/kvm-vmx-fix-kvm_set_shared_msr-called-in-preemptible-context.patch
queue-3.3/kvm-vmx-vmx_set_cr0-expects-kvm-srcu-locked.patch
queue-3.3/kvm-ensure-all-vcpus-are-consistent-with-in-kernel-irqchip-settings.patch
queue-3.3/kvm-fix-write-protection-race-during-dirty-logging.patch
queue-3.3/kvm-lock-slots_lock-around-device-assignment.patch
queue-3.3/kvm-vmx-fix-delayed-load-of-shared-msrs.patch
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