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| author |   Avi Kivity <avi@qumranet.com> | 2007-01-05 16:36:45 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@woody.osdl.org> | 2007-01-05 23:55:25 -0800 |
| commit | a436036baf331703b4d2c8e8a45f02c597bf6913 (patch) | |
| tree | ba134b0b42ca42c53e818073af8d51d73771c56b /drivers/kvm/kvm.h | |
| parent | [PATCH] KVM: MMU: Zap shadow page table entries on writes to guest page tables (diff) | |
| download | linux-dev-a436036baf331703b4d2c8e8a45f02c597bf6913.tar.xz linux-dev-a436036baf331703b4d2c8e8a45f02c597bf6913.zip | |
[PATCH] KVM: MMU: If emulating an instruction fails, try unprotecting the page
A page table may have been recycled into a regular page, and so any
instruction can be executed on it. Unprotect the page and let the cpu do its
thing.
Signed-off-by: Avi Kivity <avi@qumranet.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/kvm/kvm.h')
| -rw-r--r-- | drivers/kvm/kvm.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/kvm/kvm.h b/drivers/kvm/kvm.h index b7068ecd7765..34c43bb4d348 100644 --- a/drivers/kvm/kvm.h +++ b/drivers/kvm/kvm.h @@ -450,6 +450,7 @@ unsigned long segment_base(u16 selector); void kvm_mmu_pre_write(struct kvm_vcpu *vcpu, gpa_t gpa, int bytes); void kvm_mmu_post_write(struct kvm_vcpu *vcpu, gpa_t gpa, int bytes); +int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva); static inline struct page *_gfn_to_page(struct kvm *kvm, gfn_t gfn) { |