AuxXxilium/linux_dsm_epyc7002
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Merge branch 'kvm-updates/2.6.36' of git://git.kernel.org/pub/scm/virt/kvm/kvm

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* 'kvm-updates/2.6.36' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: PIT: free irq source id in handling error path
  KVM: destroy workqueue on kvm_create_pit() failures
  KVM: fix poison overwritten caused by using wrong xstate size
This commit is contained in:
Linus Torvalds 2010-08-22 11:27:36 -07:00
commit 3dc8d7f07e
3 changed files with 5 additions and 3 deletions
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1
arch/x86/kernel/i387.c
View File

@ -40,6 +40,7 @@
static unsigned int mxcsr_feature_mask __read_mostly = 0xffffffffu; static unsigned int mxcsr_feature_mask __read_mostly = 0xffffffffu;
unsigned int xstate_size; unsigned int xstate_size;
EXPORT_SYMBOL_GPL(xstate_size);
unsigned int sig_xstate_ia32_size = sizeof(struct _fpstate_ia32); unsigned int sig_xstate_ia32_size = sizeof(struct _fpstate_ia32);
static struct i387_fxsave_struct fx_scratch __cpuinitdata; static struct i387_fxsave_struct fx_scratch __cpuinitdata;

3
arch/x86/kvm/i8254.c
View File

@ -697,6 +697,7 @@ struct kvm_pit *kvm_create_pit(struct kvm *kvm, u32 flags)
pit->wq = create_singlethread_workqueue("kvm-pit-wq"); pit->wq = create_singlethread_workqueue("kvm-pit-wq");
if (!pit->wq) { if (!pit->wq) {
mutex_unlock(&pit->pit_state.lock); mutex_unlock(&pit->pit_state.lock);
kvm_free_irq_source_id(kvm, pit->irq_source_id);
kfree(pit); kfree(pit);
return NULL; return NULL;
} }
@ -742,7 +743,7 @@ struct kvm_pit *kvm_create_pit(struct kvm *kvm, u32 flags)
kvm_unregister_irq_mask_notifier(kvm, 0, &pit->mask_notifier); kvm_unregister_irq_mask_notifier(kvm, 0, &pit->mask_notifier);
kvm_unregister_irq_ack_notifier(kvm, &pit_state->irq_ack_notifier); kvm_unregister_irq_ack_notifier(kvm, &pit_state->irq_ack_notifier);
kvm_free_irq_source_id(kvm, pit->irq_source_id); kvm_free_irq_source_id(kvm, pit->irq_source_id);
destroy_workqueue(pit->wq);
kfree(pit); kfree(pit);
return NULL; return NULL;
} }

4
arch/x86/kvm/x86.c
View File

@ -2387,7 +2387,7 @@ static void kvm_vcpu_ioctl_x86_get_xsave(struct kvm_vcpu *vcpu,
if (cpu_has_xsave) if (cpu_has_xsave)
memcpy(guest_xsave->region, memcpy(guest_xsave->region,
&vcpu->arch.guest_fpu.state->xsave, &vcpu->arch.guest_fpu.state->xsave,
sizeof(struct xsave_struct)); xstate_size);
else { else {
memcpy(guest_xsave->region, memcpy(guest_xsave->region,
&vcpu->arch.guest_fpu.state->fxsave, &vcpu->arch.guest_fpu.state->fxsave,
@ -2405,7 +2405,7 @@ static int kvm_vcpu_ioctl_x86_set_xsave(struct kvm_vcpu *vcpu,
if (cpu_has_xsave) if (cpu_has_xsave)
memcpy(&vcpu->arch.guest_fpu.state->xsave, memcpy(&vcpu->arch.guest_fpu.state->xsave,
guest_xsave->region, sizeof(struct xsave_struct)); guest_xsave->region, xstate_size);
else { else {
if (xstate_bv & ~XSTATE_FPSSE) if (xstate_bv & ~XSTATE_FPSSE)
return -EINVAL; return -EINVAL;