1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
/* 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)
#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)
#endif /* KVM_HAVE_MMU_RWLOCK */
kvm_pfn_t hva_to_pfn(unsigned long addr, bool atomic, bool interruptible,
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);
#else
static inline void gfn_to_pfn_cache_invalidate_start(struct kvm *kvm,
unsigned long start,
unsigned long end)
{
}
#endif /* HAVE_KVM_PFNCACHE */
#ifdef CONFIG_KVM_PRIVATE_MEM
void kvm_gmem_init(struct module *module);
int kvm_gmem_create(struct kvm *kvm, struct kvm_create_guest_memfd *args);
int kvm_gmem_bind(struct kvm *kvm, struct kvm_memory_slot *slot,
unsigned int fd, loff_t offset);
void kvm_gmem_unbind(struct kvm_memory_slot *slot);
#else
static inline void kvm_gmem_init(struct module *module)
{
}
static inline int kvm_gmem_bind(struct kvm *kvm,
struct kvm_memory_slot *slot,
unsigned int fd, loff_t offset)
{
WARN_ON_ONCE(1);
return -EIO;
}
static inline void kvm_gmem_unbind(struct kvm_memory_slot *slot)
{
WARN_ON_ONCE(1);
}
#endif /* CONFIG_KVM_PRIVATE_MEM */
#endif /* __KVM_MM_H__ */
|
