diff options
| author | Ben Gardon <bgardon@google.com> | 2020-10-14 11:26:55 -0700 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-10-23 03:42:13 -0400 |
| commit | a6a0b05da9f37ff56faa6b8351ed6e0b55032460 (patch) | |
| tree | 62898a48873891214f7ef9849fec5bc7fae43f2a /arch/x86/kvm/mmu/tdp_mmu.h | |
| parent | 1d8dd6b3f12b03f617820a9ebc19cc2fabf59ce9 (diff) | |
kvm: x86/mmu: Support dirty logging for the TDP MMU
Dirty logging is a key feature of the KVM MMU and must be supported by
the TDP MMU. Add support for both the write protection and PML dirty
logging modes.
Tested by running kvm-unit-tests and KVM selftests on an Intel Haswell
machine. This series introduced no new failures.
This series can be viewed in Gerrit at:
https://linux-review.googlesource.com/c/virt/kvm/kvm/+/2538
Signed-off-by: Ben Gardon <bgardon@google.com>
Message-Id: <20201014182700.2888246-16-bgardon@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/mmu/tdp_mmu.h')
| -rw-r--r-- | arch/x86/kvm/mmu/tdp_mmu.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/x86/kvm/mmu/tdp_mmu.h b/arch/x86/kvm/mmu/tdp_mmu.h index aeee3ce7b3f4..ece66f10d85f 100644 --- a/arch/x86/kvm/mmu/tdp_mmu.h +++ b/arch/x86/kvm/mmu/tdp_mmu.h @@ -28,4 +28,14 @@ int kvm_tdp_mmu_test_age_hva(struct kvm *kvm, unsigned long hva); int kvm_tdp_mmu_set_spte_hva(struct kvm *kvm, unsigned long address, pte_t *host_ptep); + +bool kvm_tdp_mmu_wrprot_slot(struct kvm *kvm, struct kvm_memory_slot *slot, + int min_level); +bool kvm_tdp_mmu_clear_dirty_slot(struct kvm *kvm, + struct kvm_memory_slot *slot); +void kvm_tdp_mmu_clear_dirty_pt_masked(struct kvm *kvm, + struct kvm_memory_slot *slot, + gfn_t gfn, unsigned long mask, + bool wrprot); +bool kvm_tdp_mmu_slot_set_dirty(struct kvm *kvm, struct kvm_memory_slot *slot); #endif /* __KVM_X86_MMU_TDP_MMU_H */ |