// SPDX-License-Identifier: GPL-2.0-only #ifndef __KVM_MM_H__ #define __KVM_MM_H__ 1 /* * Architectures can choose whether to use an rwlock or spinlock * for the mmu_lock. These macros, for use in common code * only, avoids using #ifdefs in places that must deal with * multiple architectures. */ #ifdef KVM_HAVE_MMU_RWLOCK #define KVM_MMU_LOCK_INIT(kvm) rwlock_init(&(kvm)->mmu_lock) #define KVM_MMU_LOCK(kvm) write_lock(&(kvm)->mmu_lock) #define KVM_MMU_UNLOCK(kvm) write_unlock(&(kvm)->mmu_lock) #define KVM_MMU_READ_LOCK(kvm) read_lock(&(kvm)->mmu_lock) #define KVM_MMU_READ_UNLOCK(kvm) read_unlock(&(kvm)->mmu_lock) #else #define KVM_MMU_LOCK_INIT(kvm) spin_lock_init(&(kvm)->mmu_lock) #define KVM_MMU_LOCK(kvm) spin_lock(&(kvm)->mmu_lock) #define KVM_MMU_UNLOCK(kvm) spin_unlock(&(kvm)->mmu_lock) #define KVM_MMU_READ_LOCK(kvm) spin_lock(&(kvm)->mmu_lock) #define KVM_MMU_READ_UNLOCK(kvm) spin_unlock(&(kvm)->mmu_lock) #endif /* KVM_HAVE_MMU_RWLOCK */ kvm_pfn_t hva_to_pfn(unsigned long addr, bool atomic, bool *async, bool write_fault, bool *writable); #ifdef CONFIG_HAVE_KVM_PFNCACHE void gfn_to_pfn_cache_invalidate_start(struct kvm *kvm, unsigned long start, unsigned long end, bool may_block); #else static inline void gfn_to_pfn_cache_invalidate_start(struct kvm *kvm, unsigned long start, unsigned long end, bool may_block) { } #endif /* HAVE_KVM_PFNCACHE */ #endif /* __KVM_MM_H__ */