diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/kvm_host.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 9698080c902b..7a08496b974a 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -681,6 +681,13 @@ static inline int memslot_id(struct kvm *kvm, gfn_t gfn) return gfn_to_memslot(kvm, gfn)->id; } +static inline gfn_t gfn_to_index(gfn_t gfn, gfn_t base_gfn, int level) +{ + /* KVM_HPAGE_GFN_SHIFT(PT_PAGE_TABLE_LEVEL) must be 0. */ + return (gfn >> KVM_HPAGE_GFN_SHIFT(level)) - + (base_gfn >> KVM_HPAGE_GFN_SHIFT(level)); +} + static inline unsigned long gfn_to_hva_memslot(struct kvm_memory_slot *slot, gfn_t gfn) { |