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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ASM_KVM_BOOK3S_UVMEM_H__
#define __ASM_KVM_BOOK3S_UVMEM_H__
#ifdef CONFIG_PPC_UV
int kvmppc_uvmem_init(void);
void kvmppc_uvmem_free(void);
bool kvmppc_uvmem_available(void);
int kvmppc_uvmem_slot_init(struct kvm *kvm, const struct kvm_memory_slot *slot);
void kvmppc_uvmem_slot_free(struct kvm *kvm,
const struct kvm_memory_slot *slot);
unsigned long kvmppc_h_svm_page_in(struct kvm *kvm,
unsigned long gra,
unsigned long flags,
unsigned long page_shift);
unsigned long kvmppc_h_svm_page_out(struct kvm *kvm,
unsigned long gra,
unsigned long flags,
unsigned long page_shift);
unsigned long kvmppc_h_svm_init_start(struct kvm *kvm);
unsigned long kvmppc_h_svm_init_done(struct kvm *kvm);
int kvmppc_send_page_to_uv(struct kvm *kvm, unsigned long gfn);
unsigned long kvmppc_h_svm_init_abort(struct kvm *kvm);
void kvmppc_uvmem_drop_pages(const struct kvm_memory_slot *free,
struct kvm *kvm, bool skip_page_out);
int kvmppc_uvmem_memslot_create(struct kvm *kvm,
const struct kvm_memory_slot *new);
void kvmppc_uvmem_memslot_delete(struct kvm *kvm,
const struct kvm_memory_slot *old);
#else
static inline int kvmppc_uvmem_init(void)
{
return 0;
}
static inline void kvmppc_uvmem_free(void) { }
static inline bool kvmppc_uvmem_available(void)
{
return false;
}
static inline int
kvmppc_uvmem_slot_init(struct kvm *kvm, const struct kvm_memory_slot *slot)
{
return 0;
}
static inline void
kvmppc_uvmem_slot_free(struct kvm *kvm, const struct kvm_memory_slot *slot) { }
static inline unsigned long
kvmppc_h_svm_page_in(struct kvm *kvm, unsigned long gra,
unsigned long flags, unsigned long page_shift)
{
return H_UNSUPPORTED;
}
static inline unsigned long
kvmppc_h_svm_page_out(struct kvm *kvm, unsigned long gra,
unsigned long flags, unsigned long page_shift)
{
return H_UNSUPPORTED;
}
static inline unsigned long kvmppc_h_svm_init_start(struct kvm *kvm)
{
return H_UNSUPPORTED;
}
static inline unsigned long kvmppc_h_svm_init_done(struct kvm *kvm)
{
return H_UNSUPPORTED;
}
static inline unsigned long kvmppc_h_svm_init_abort(struct kvm *kvm)
{
return H_UNSUPPORTED;
}
static inline int kvmppc_send_page_to_uv(struct kvm *kvm, unsigned long gfn)
{
return -EFAULT;
}
static inline void
kvmppc_uvmem_drop_pages(const struct kvm_memory_slot *free,
struct kvm *kvm, bool skip_page_out) { }
static inline int kvmppc_uvmem_memslot_create(struct kvm *kvm,
const struct kvm_memory_slot *new)
{
return H_UNSUPPORTED;
}
static inline void kvmppc_uvmem_memslot_delete(struct kvm *kvm,
const struct kvm_memory_slot *old) { }
#endif /* CONFIG_PPC_UV */
#endif /* __ASM_KVM_BOOK3S_UVMEM_H__ */