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| author |   Dor Laor <dor.laor@qumranet.com> | 2007-03-30 13:06:33 +0300 |
|---|---|---|
| committer |   Avi Kivity <avi@qumranet.com> | 2007-05-03 10:52:28 +0300 |
| commit | e0fa826f969c262c23908953bf85add487cc2e6c (patch) | |
| tree | b9fdaaffea660aadd1120267e6966da3f5d10afe /drivers/kvm/mmu.c | |
| parent | KVM: x86 emulator: fix bit string operations operand size (diff) | |
| download | linux-dev-e0fa826f969c262c23908953bf85add487cc2e6c.tar.xz linux-dev-e0fa826f969c262c23908953bf85add487cc2e6c.zip | |
KVM: Add mmu cache clear function
Functions that play around with the physical memory map
need a way to clear mappings to possibly nonexistent or
invalid memory. Both the mmu cache and the processor tlb
are cleared.
Signed-off-by: Dor Laor <dor.laor@qumranet.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'drivers/kvm/mmu.c')
| -rw-r--r-- | drivers/kvm/mmu.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/kvm/mmu.c b/drivers/kvm/mmu.c index d81b9cd3465f..376800a33968 100644 --- a/drivers/kvm/mmu.c +++ b/drivers/kvm/mmu.c @@ -1314,6 +1314,23 @@ void kvm_mmu_slot_remove_write_access(struct kvm_vcpu *vcpu, int slot) } } +void kvm_mmu_zap_all(struct kvm_vcpu *vcpu) +{ + destroy_kvm_mmu(vcpu); + + while (!list_empty(&vcpu->kvm->active_mmu_pages)) { + struct kvm_mmu_page *page; + + page = container_of(vcpu->kvm->active_mmu_pages.next, + struct kvm_mmu_page, link); + kvm_mmu_zap_page(vcpu, page); + } + + mmu_free_memory_caches(vcpu); + kvm_arch_ops->tlb_flush(vcpu); + init_kvm_mmu(vcpu); +} + #ifdef AUDIT static const char *audit_msg; |