Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
59 lines
1.9 KiB
C
59 lines
1.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __KVM_X86_PAGE_TRACK_H
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#define __KVM_X86_PAGE_TRACK_H
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#include <linux/kvm_host.h>
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#include <asm/kvm_page_track.h>
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bool kvm_page_track_write_tracking_enabled(struct kvm *kvm);
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int kvm_page_track_write_tracking_alloc(struct kvm_memory_slot *slot);
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void kvm_page_track_free_memslot(struct kvm_memory_slot *slot);
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int kvm_page_track_create_memslot(struct kvm *kvm,
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struct kvm_memory_slot *slot,
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unsigned long npages);
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void __kvm_write_track_add_gfn(struct kvm *kvm, struct kvm_memory_slot *slot,
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gfn_t gfn);
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void __kvm_write_track_remove_gfn(struct kvm *kvm,
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struct kvm_memory_slot *slot, gfn_t gfn);
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bool kvm_gfn_is_write_tracked(struct kvm *kvm,
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const struct kvm_memory_slot *slot, gfn_t gfn);
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#ifdef CONFIG_KVM_EXTERNAL_WRITE_TRACKING
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int kvm_page_track_init(struct kvm *kvm);
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void kvm_page_track_cleanup(struct kvm *kvm);
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void __kvm_page_track_write(struct kvm *kvm, gpa_t gpa, const u8 *new, int bytes);
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void kvm_page_track_delete_slot(struct kvm *kvm, struct kvm_memory_slot *slot);
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static inline bool kvm_page_track_has_external_user(struct kvm *kvm)
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{
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return !hlist_empty(&kvm->arch.track_notifier_head.track_notifier_list);
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}
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#else
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static inline int kvm_page_track_init(struct kvm *kvm) { return 0; }
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static inline void kvm_page_track_cleanup(struct kvm *kvm) { }
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static inline void __kvm_page_track_write(struct kvm *kvm, gpa_t gpa,
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const u8 *new, int bytes) { }
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static inline void kvm_page_track_delete_slot(struct kvm *kvm,
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struct kvm_memory_slot *slot) { }
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static inline bool kvm_page_track_has_external_user(struct kvm *kvm) { return false; }
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#endif /* CONFIG_KVM_EXTERNAL_WRITE_TRACKING */
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static inline void kvm_page_track_write(struct kvm_vcpu *vcpu, gpa_t gpa,
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const u8 *new, int bytes)
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{
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__kvm_page_track_write(vcpu->kvm, gpa, new, bytes);
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kvm_mmu_track_write(vcpu, gpa, new, bytes);
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}
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#endif /* __KVM_X86_PAGE_TRACK_H */
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