40 lines
1.3 KiB
C
40 lines
1.3 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-only */
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#ifndef __KVM_HYP_MM_H
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#define __KVM_HYP_MM_H
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#include <asm/kvm_pgtable.h>
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#include <asm/spectre.h>
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#include <linux/memblock.h>
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#include <linux/types.h>
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#include <nvhe/memory.h>
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#include <nvhe/spinlock.h>
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extern struct kvm_pgtable pkvm_pgtable;
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extern hyp_spinlock_t pkvm_pgd_lock;
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int hyp_create_idmap(u32 hyp_va_bits);
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int hyp_map_vectors(void);
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int hyp_back_vmemmap(phys_addr_t phys, unsigned long size, phys_addr_t back);
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int pkvm_cpu_set_vector(enum arm64_hyp_spectre_vector slot);
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int pkvm_create_mappings(void *from, void *to, enum kvm_pgtable_prot prot);
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int pkvm_create_mappings_locked(void *from, void *to, enum kvm_pgtable_prot prot);
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int __pkvm_create_private_mapping(phys_addr_t phys, size_t size,
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enum kvm_pgtable_prot prot,
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unsigned long *haddr);
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int pkvm_alloc_private_va_range(size_t size, unsigned long *haddr);
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static inline void hyp_vmemmap_range(phys_addr_t phys, unsigned long size,
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unsigned long *start, unsigned long *end)
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{
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unsigned long nr_pages = size >> PAGE_SHIFT;
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struct hyp_page *p = hyp_phys_to_page(phys);
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*start = (unsigned long)p;
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*end = *start + nr_pages * sizeof(struct hyp_page);
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*start = ALIGN_DOWN(*start, PAGE_SIZE);
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*end = ALIGN(*end, PAGE_SIZE);
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}
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#endif /* __KVM_HYP_MM_H */
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