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| author |   Marcelo Tosatti <mtosatti@redhat.com> | 2008-02-20 14:47:24 -0500 |
|---|---|---|
| committer |   Avi Kivity <avi@qumranet.com> | 2008-04-27 11:53:25 +0300 |
| commit | 2e53d63acba75795aa226febd140f67c58c6a353 (patch) | |
| tree | be4ad4e5b28c737053af78a950d270a657e9f628 /include/linux/kvm_host.h | |
| parent | KVM: Implement dummy values for MSR_PERF_STATUS (diff) | |
| download | linux-dev-2e53d63acba75795aa226febd140f67c58c6a353.tar.xz linux-dev-2e53d63acba75795aa226febd140f67c58c6a353.zip | |
KVM: MMU: ignore zapped root pagetables
Mark zapped root pagetables as invalid and ignore such pages during lookup.
This is a problem with the cr3-target feature, where a zapped root table fools
the faulting code into creating a read-only mapping. The result is a lockup
if the instruction can't be emulated.
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'include/linux/kvm_host.h')
| -rw-r--r-- | include/linux/kvm_host.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index eb88d32dd5c7..994278fb5883 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -37,6 +37,7 @@ #define KVM_REQ_TLB_FLUSH 0 #define KVM_REQ_MIGRATE_TIMER 1 #define KVM_REQ_REPORT_TPR_ACCESS 2 +#define KVM_REQ_MMU_RELOAD 3 struct kvm_vcpu; extern struct kmem_cache *kvm_vcpu_cache; @@ -190,6 +191,7 @@ void kvm_resched(struct kvm_vcpu *vcpu); void kvm_load_guest_fpu(struct kvm_vcpu *vcpu); void kvm_put_guest_fpu(struct kvm_vcpu *vcpu); void kvm_flush_remote_tlbs(struct kvm *kvm); +void kvm_reload_remote_mmus(struct kvm *kvm); long kvm_arch_dev_ioctl(struct file *filp, unsigned int ioctl, unsigned long arg); |