diff options
| author | Keqian Zhu <zhukeqian1@huawei.com> | 2021-04-29 11:41:14 +0800 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-06-17 13:09:25 -0400 |
| commit | 3ad93562093d764bc22d6460e84ba60d0c57f7ab (patch) | |
| tree | 320c7f3a4fc9cd6059848f824b8221f15eaa4a64 /arch/x86/kvm/mmu/mmu_internal.h | |
| parent | d8f5537a8816c8f00ea3103e74b65987963a56c6 (diff) | |
| download | linux-3ad93562093d764bc22d6460e84ba60d0c57f7ab.tar.bz2 | |
KVM: x86: Support write protecting only large pages
Prepare for write protecting large page lazily during dirty log tracking,
for which we will only need to write protect gfns at large page
granularity.
No functional or performance change expected.
Signed-off-by: Keqian Zhu <zhukeqian1@huawei.com>
Message-Id: <20210429034115.35560-2-zhukeqian1@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/mmu/mmu_internal.h')
| -rw-r--r-- | arch/x86/kvm/mmu/mmu_internal.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/kvm/mmu/mmu_internal.h b/arch/x86/kvm/mmu/mmu_internal.h index ff4c6256f3f9..18be103df9d5 100644 --- a/arch/x86/kvm/mmu/mmu_internal.h +++ b/arch/x86/kvm/mmu/mmu_internal.h @@ -128,7 +128,8 @@ bool mmu_need_write_protect(struct kvm_vcpu *vcpu, gfn_t gfn, void kvm_mmu_gfn_disallow_lpage(struct kvm_memory_slot *slot, gfn_t gfn); void kvm_mmu_gfn_allow_lpage(struct kvm_memory_slot *slot, gfn_t gfn); bool kvm_mmu_slot_gfn_write_protect(struct kvm *kvm, - struct kvm_memory_slot *slot, u64 gfn); + struct kvm_memory_slot *slot, u64 gfn, + int min_level); void kvm_flush_remote_tlbs_with_address(struct kvm *kvm, u64 start_gfn, u64 pages); |