1a413a625STom Rix /* SPDX-License-Identifier: GPL-2.0-only */
2982ed0deSDavid Woodhouse
3982ed0deSDavid Woodhouse #ifndef __KVM_MM_H__
4982ed0deSDavid Woodhouse #define __KVM_MM_H__ 1
5982ed0deSDavid Woodhouse
6982ed0deSDavid Woodhouse /*
7982ed0deSDavid Woodhouse * Architectures can choose whether to use an rwlock or spinlock
8982ed0deSDavid Woodhouse * for the mmu_lock. These macros, for use in common code
9982ed0deSDavid Woodhouse * only, avoids using #ifdefs in places that must deal with
10982ed0deSDavid Woodhouse * multiple architectures.
11982ed0deSDavid Woodhouse */
12982ed0deSDavid Woodhouse
13982ed0deSDavid Woodhouse #ifdef KVM_HAVE_MMU_RWLOCK
14982ed0deSDavid Woodhouse #define KVM_MMU_LOCK_INIT(kvm) rwlock_init(&(kvm)->mmu_lock)
15982ed0deSDavid Woodhouse #define KVM_MMU_LOCK(kvm) write_lock(&(kvm)->mmu_lock)
16982ed0deSDavid Woodhouse #define KVM_MMU_UNLOCK(kvm) write_unlock(&(kvm)->mmu_lock)
17982ed0deSDavid Woodhouse #else
18982ed0deSDavid Woodhouse #define KVM_MMU_LOCK_INIT(kvm) spin_lock_init(&(kvm)->mmu_lock)
19982ed0deSDavid Woodhouse #define KVM_MMU_LOCK(kvm) spin_lock(&(kvm)->mmu_lock)
20982ed0deSDavid Woodhouse #define KVM_MMU_UNLOCK(kvm) spin_unlock(&(kvm)->mmu_lock)
21982ed0deSDavid Woodhouse #endif /* KVM_HAVE_MMU_RWLOCK */
22982ed0deSDavid Woodhouse
23*c8b88b33SPeter Xu kvm_pfn_t hva_to_pfn(unsigned long addr, bool atomic, bool interruptible,
24*c8b88b33SPeter Xu bool *async, bool write_fault, bool *writable);
25982ed0deSDavid Woodhouse
26982ed0deSDavid Woodhouse #ifdef CONFIG_HAVE_KVM_PFNCACHE
27982ed0deSDavid Woodhouse void gfn_to_pfn_cache_invalidate_start(struct kvm *kvm,
28982ed0deSDavid Woodhouse unsigned long start,
29982ed0deSDavid Woodhouse unsigned long end,
30982ed0deSDavid Woodhouse bool may_block);
31982ed0deSDavid Woodhouse #else
gfn_to_pfn_cache_invalidate_start(struct kvm * kvm,unsigned long start,unsigned long end,bool may_block)32982ed0deSDavid Woodhouse static inline void gfn_to_pfn_cache_invalidate_start(struct kvm *kvm,
33982ed0deSDavid Woodhouse unsigned long start,
34982ed0deSDavid Woodhouse unsigned long end,
35982ed0deSDavid Woodhouse bool may_block)
36982ed0deSDavid Woodhouse {
37982ed0deSDavid Woodhouse }
38982ed0deSDavid Woodhouse #endif /* HAVE_KVM_PFNCACHE */
39982ed0deSDavid Woodhouse
40982ed0deSDavid Woodhouse #endif /* __KVM_MM_H__ */
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