summaryrefslogtreecommitdiff
path: root/arch/x86/kvm/mmu/mmu_internal.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/x86/kvm/mmu/mmu_internal.h')
-rw-r--r--arch/x86/kvm/mmu/mmu_internal.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/x86/kvm/mmu/mmu_internal.h b/arch/x86/kvm/mmu/mmu_internal.h
index ac00bfbf32f6..cc58631e2336 100644
--- a/arch/x86/kvm/mmu/mmu_internal.h
+++ b/arch/x86/kvm/mmu/mmu_internal.h
@@ -156,6 +156,11 @@ static inline bool kvm_mmu_page_ad_need_write_protect(struct kvm_mmu_page *sp)
return kvm_x86_ops.cpu_dirty_log_size && sp->role.guest_mode;
}
+static inline gfn_t gfn_round_for_level(gfn_t gfn, int level)
+{
+ return gfn & -KVM_PAGES_PER_HPAGE(level);
+}
+
int mmu_try_to_unsync_pages(struct kvm *kvm, const struct kvm_memory_slot *slot,
gfn_t gfn, bool can_unsync, bool prefetch);
@@ -164,8 +169,17 @@ void kvm_mmu_gfn_allow_lpage(const 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,
int min_level);
+
void kvm_flush_remote_tlbs_with_address(struct kvm *kvm,
u64 start_gfn, u64 pages);
+
+/* Flush the given page (huge or not) of guest memory. */
+static inline void kvm_flush_remote_tlbs_gfn(struct kvm *kvm, gfn_t gfn, int level)
+{
+ kvm_flush_remote_tlbs_with_address(kvm, gfn_round_for_level(gfn, level),
+ KVM_PAGES_PER_HPAGE(level));
+}
+
unsigned int pte_list_count(struct kvm_rmap_head *rmap_head);
extern int nx_huge_pages;