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48 lines
1.3 KiB
48 lines
1.3 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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#ifndef __KVM_HYP_MEMORY_H |
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#define __KVM_HYP_MEMORY_H |
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#include <asm/kvm_mmu.h> |
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#include <asm/page.h> |
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#include <linux/types.h> |
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struct hyp_page { |
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unsigned short refcount; |
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unsigned short order; |
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}; |
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extern u64 __hyp_vmemmap; |
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#define hyp_vmemmap ((struct hyp_page *)__hyp_vmemmap) |
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#define __hyp_va(phys) ((void *)((phys_addr_t)(phys) - hyp_physvirt_offset)) |
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static inline void *hyp_phys_to_virt(phys_addr_t phys) |
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{ |
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return __hyp_va(phys); |
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} |
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static inline phys_addr_t hyp_virt_to_phys(void *addr) |
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{ |
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return __hyp_pa(addr); |
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} |
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#define hyp_phys_to_pfn(phys) ((phys) >> PAGE_SHIFT) |
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#define hyp_pfn_to_phys(pfn) ((phys_addr_t)((pfn) << PAGE_SHIFT)) |
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#define hyp_phys_to_page(phys) (&hyp_vmemmap[hyp_phys_to_pfn(phys)]) |
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#define hyp_virt_to_page(virt) hyp_phys_to_page(__hyp_pa(virt)) |
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#define hyp_virt_to_pfn(virt) hyp_phys_to_pfn(__hyp_pa(virt)) |
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#define hyp_page_to_pfn(page) ((struct hyp_page *)(page) - hyp_vmemmap) |
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#define hyp_page_to_phys(page) hyp_pfn_to_phys((hyp_page_to_pfn(page))) |
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#define hyp_page_to_virt(page) __hyp_va(hyp_page_to_phys(page)) |
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#define hyp_page_to_pool(page) (((struct hyp_page *)page)->pool) |
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static inline int hyp_page_count(void *addr) |
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{ |
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struct hyp_page *p = hyp_virt_to_page(addr); |
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return p->refcount; |
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} |
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#endif /* __KVM_HYP_MEMORY_H */
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