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KVM fixes for 3.10-rc6

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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM fixes from Paolo Bonzini:
 "Three one-line fixes for my first pull request; one for x86 host, one
  for x86 guest, one for PPC"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  x86: kvmclock: zero initialize pvclock shared memory area
  kvm/ppc/booke: Delay kvmppc_lazy_ee_enable
  KVM: x86: remove vcpu's CPL check in host-invoked XCR set
This commit is contained in:
Linus Torvalds 2013-06-21 06:29:22 -10:00
commit 9d0be540d7
3 changed files with 5 additions and 4 deletions
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3
arch/powerpc/kvm/booke.c
View File

@ -673,7 +673,6 @@ int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
ret = s;
goto out;
}
kvmppc_lazy_ee_enable();
kvm_guest_enter();
@ -699,6 +698,8 @@ int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
kvmppc_load_guest_fp(vcpu);
#endif
kvmppc_lazy_ee_enable();
ret = __kvmppc_vcpu_run(kvm_run, vcpu);
/* No need for kvm_guest_exit. It's done in handle_exit.

1
arch/x86/kernel/kvmclock.c
View File

@ -242,6 +242,7 @@ void __init kvmclock_init(void)
if (!mem)
return;
hv_clock = __va(mem);
memset(hv_clock, 0, size);
if (kvm_register_clock("boot clock")) {
hv_clock = NULL;

5
arch/x86/kvm/x86.c
View File

@ -582,8 +582,6 @@ int __kvm_set_xcr(struct kvm_vcpu *vcpu, u32 index, u64 xcr)
if (index != XCR_XFEATURE_ENABLED_MASK)
return 1;
xcr0 = xcr;
if (kvm_x86_ops->get_cpl(vcpu) != 0)
return 1;
if (!(xcr0 & XSTATE_FP))
return 1;
if ((xcr0 & XSTATE_YMM) && !(xcr0 & XSTATE_SSE))
@ -597,7 +595,8 @@ int __kvm_set_xcr(struct kvm_vcpu *vcpu, u32 index, u64 xcr)
int kvm_set_xcr(struct kvm_vcpu *vcpu, u32 index, u64 xcr)
{
if (__kvm_set_xcr(vcpu, index, xcr)) {
if (kvm_x86_ops->get_cpl(vcpu) != 0 ||
__kvm_set_xcr(vcpu, index, xcr)) {
kvm_inject_gp(vcpu, 0);
return 1;
}