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f8479adb28
Extract the gmem function declarations out of kvm_mm.h and into a dedicated header, guest_memfd.h. This will allow creating a MAINTAINERS entry for guest_memfd without having to rely on content pattern matching. Reviewed-by: Ackerley Tng <ackerleytng@google.com> Acked-by: David Hildenbrand (Arm) <david@kernel.org> Link: https://patch.msgid.link/20260731173842.2649391-3-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com>
35 lines
900 B
C
35 lines
900 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#ifndef __KVM_GUEST_MEMFD_H__
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#define __KVM_GUEST_MEMFD_H__
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#include <linux/kvm_types.h>
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#ifdef CONFIG_KVM_GUEST_MEMFD
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int kvm_gmem_init(struct module *module);
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void kvm_gmem_exit(void);
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int kvm_gmem_create(struct kvm *kvm, struct kvm_create_guest_memfd *args);
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int kvm_gmem_bind(struct kvm *kvm, struct kvm_memory_slot *slot,
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unsigned int fd, uoff_t offset);
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void kvm_gmem_unbind(struct kvm_memory_slot *slot);
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#else
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static inline int kvm_gmem_init(struct module *module)
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{
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return 0;
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}
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static inline void kvm_gmem_exit(void) {};
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static inline int kvm_gmem_bind(struct kvm *kvm,
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struct kvm_memory_slot *slot,
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unsigned int fd, uoff_t offset)
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{
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WARN_ON_ONCE(1);
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return -EIO;
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}
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static inline void kvm_gmem_unbind(struct kvm_memory_slot *slot)
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{
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WARN_ON_ONCE(1);
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}
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#endif /* CONFIG_KVM_GUEST_MEMFD */
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#endif /* __KVM_GUEST_MEMFD_H__ */
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