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