1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 #ifndef __KVM_HYP_MEMORY_H 3 #define __KVM_HYP_MEMORY_H 4 5 #include <asm/page.h> 6 7 #include <linux/types.h> 8 9 struct hyp_pool; 10 struct hyp_page { 11 unsigned int refcount; 12 unsigned int order; 13 struct hyp_pool *pool; 14 struct list_head node; 15 }; 16 17 extern s64 hyp_physvirt_offset; 18 extern u64 __hyp_vmemmap; 19 #define hyp_vmemmap ((struct hyp_page *)__hyp_vmemmap) 20 21 #define __hyp_pa(virt) ((phys_addr_t)(virt) + hyp_physvirt_offset) 22 #define __hyp_va(phys) ((void *)((phys_addr_t)(phys) - hyp_physvirt_offset)) 23 hyp_phys_to_virt(phys_addr_t phys)24static inline void *hyp_phys_to_virt(phys_addr_t phys) 25 { 26 return __hyp_va(phys); 27 } 28 hyp_virt_to_phys(void * addr)29static inline phys_addr_t hyp_virt_to_phys(void *addr) 30 { 31 return __hyp_pa(addr); 32 } 33 34 #define hyp_phys_to_pfn(phys) ((phys) >> PAGE_SHIFT) 35 #define hyp_pfn_to_phys(pfn) ((phys_addr_t)((pfn) << PAGE_SHIFT)) 36 #define hyp_phys_to_page(phys) (&hyp_vmemmap[hyp_phys_to_pfn(phys)]) 37 #define hyp_virt_to_page(virt) hyp_phys_to_page(__hyp_pa(virt)) 38 #define hyp_virt_to_pfn(virt) hyp_phys_to_pfn(__hyp_pa(virt)) 39 40 #define hyp_page_to_pfn(page) ((struct hyp_page *)(page) - hyp_vmemmap) 41 #define hyp_page_to_phys(page) hyp_pfn_to_phys((hyp_page_to_pfn(page))) 42 #define hyp_page_to_virt(page) __hyp_va(hyp_page_to_phys(page)) 43 #define hyp_page_to_pool(page) (((struct hyp_page *)page)->pool) 44 hyp_page_count(void * addr)45static inline int hyp_page_count(void *addr) 46 { 47 struct hyp_page *p = hyp_virt_to_page(addr); 48 49 return p->refcount; 50 } 51 52 #endif /* __KVM_HYP_MEMORY_H */ 53