diff options
author | Jiri Kosina <jkosina@suse.cz> | 2023-11-01 02:07:35 +0300 |
---|---|---|
committer | Jiri Kosina <jkosina@suse.cz> | 2023-11-01 02:07:35 +0300 |
commit | 20cd569d7ee8fce24e8753f0f43af6c420557b1f (patch) | |
tree | f559cfda594846795aa51c99d96f92d8c912851a /arch/x86/kvm/mmu/page_track.h | |
parent | 62cc9c3cb3ec1bf31cc116146185ed97b450836a (diff) | |
parent | eeebfe6259ba2d5b0980eb7b0df384eb77e9e4f5 (diff) | |
download | linux-20cd569d7ee8fce24e8753f0f43af6c420557b1f.tar.xz |
Merge branch 'for-6.7/config_pm' into for-linus
- #ifdef CONFIG_PM removal from HID code (Thomas Weißschuh)
Diffstat (limited to 'arch/x86/kvm/mmu/page_track.h')
-rw-r--r-- | arch/x86/kvm/mmu/page_track.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/arch/x86/kvm/mmu/page_track.h b/arch/x86/kvm/mmu/page_track.h new file mode 100644 index 000000000000..d4d72ed999b1 --- /dev/null +++ b/arch/x86/kvm/mmu/page_track.h @@ -0,0 +1,58 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __KVM_X86_PAGE_TRACK_H +#define __KVM_X86_PAGE_TRACK_H + +#include <linux/kvm_host.h> + +#include <asm/kvm_page_track.h> + + +bool kvm_page_track_write_tracking_enabled(struct kvm *kvm); +int kvm_page_track_write_tracking_alloc(struct kvm_memory_slot *slot); + +void kvm_page_track_free_memslot(struct kvm_memory_slot *slot); +int kvm_page_track_create_memslot(struct kvm *kvm, + struct kvm_memory_slot *slot, + unsigned long npages); + +void __kvm_write_track_add_gfn(struct kvm *kvm, struct kvm_memory_slot *slot, + gfn_t gfn); +void __kvm_write_track_remove_gfn(struct kvm *kvm, + struct kvm_memory_slot *slot, gfn_t gfn); + +bool kvm_gfn_is_write_tracked(struct kvm *kvm, + const struct kvm_memory_slot *slot, gfn_t gfn); + +#ifdef CONFIG_KVM_EXTERNAL_WRITE_TRACKING +int kvm_page_track_init(struct kvm *kvm); +void kvm_page_track_cleanup(struct kvm *kvm); + +void __kvm_page_track_write(struct kvm *kvm, gpa_t gpa, const u8 *new, int bytes); +void kvm_page_track_delete_slot(struct kvm *kvm, struct kvm_memory_slot *slot); + +static inline bool kvm_page_track_has_external_user(struct kvm *kvm) +{ + return !hlist_empty(&kvm->arch.track_notifier_head.track_notifier_list); +} +#else +static inline int kvm_page_track_init(struct kvm *kvm) { return 0; } +static inline void kvm_page_track_cleanup(struct kvm *kvm) { } + +static inline void __kvm_page_track_write(struct kvm *kvm, gpa_t gpa, + const u8 *new, int bytes) { } +static inline void kvm_page_track_delete_slot(struct kvm *kvm, + struct kvm_memory_slot *slot) { } + +static inline bool kvm_page_track_has_external_user(struct kvm *kvm) { return false; } + +#endif /* CONFIG_KVM_EXTERNAL_WRITE_TRACKING */ + +static inline void kvm_page_track_write(struct kvm_vcpu *vcpu, gpa_t gpa, + const u8 *new, int bytes) +{ + __kvm_page_track_write(vcpu->kvm, gpa, new, bytes); + + kvm_mmu_track_write(vcpu, gpa, new, bytes); +} + +#endif /* __KVM_X86_PAGE_TRACK_H */ |