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vm.h
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vm.h
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#pragma once
union va_t
{
unsigned long long addr;
struct
{
unsigned long long offset_4kb : 12;
unsigned long long pt_index : 9;
unsigned long long pd_index : 9;
unsigned long long pdpt_index : 9;
unsigned long long pml4_index : 9;
unsigned long long reserved : 16;
};
struct
{
unsigned long long offset_2mb : 21;
unsigned long long pd_index : 9;
unsigned long long pdpt_index : 9;
unsigned long long pml4_index : 9;
unsigned long long reserved : 16;
};
struct
{
unsigned long long offset_1gb : 30;
unsigned long long pdpt_index : 9;
unsigned long long pml4_index : 9;
unsigned long long reserved : 16;
};
};
using pa_t = va_t;
typedef union
{
struct
{
uintptr_t reserved1 : 3;
uintptr_t page_level_write_through : 1;
uintptr_t page_level_cache_disable : 1;
uintptr_t reserved2 : 7;
uintptr_t address_of_page_directory : 36;
uintptr_t reserved3 : 16;
};
uintptr_t flags;
} cr3_t;
typedef union
{
struct
{
uintptr_t present : 1;
uintptr_t write : 1;
uintptr_t supervisor : 1;
uintptr_t page_level_write_through : 1;
uintptr_t page_level_cache_disable : 1;
uintptr_t accessed : 1;
uintptr_t reserved1 : 1;
uintptr_t must_be_zero : 1;
uintptr_t ignored_1 : 3;
uintptr_t restart : 1;
uintptr_t pfn : 36;
uintptr_t reserved2 : 4;
uintptr_t ignored_2 : 11;
uintptr_t execute_disable : 1;
};
uintptr_t addr;
} pml4e_t;
union pdpte_1gb_t
{
struct
{
unsigned long long present : 1;
unsigned long long write : 1;
unsigned long long supervisor : 1;
unsigned long long page_level_write_through : 1;
unsigned long long page_level_cache_disable : 1;
unsigned long long accessed : 1;
unsigned long long dirty : 1;
unsigned long long large_page : 1;
unsigned long long global : 1;
unsigned long long ignored_1 : 2;
unsigned long long restart : 1;
unsigned long long pat : 1;
unsigned long long reserved1 : 17;
unsigned long long pfn : 18;
unsigned long long reserved2 : 4;
unsigned long long ignored_2 : 7;
unsigned long long protection_key : 4;
unsigned long long execute_disable : 1;
};
unsigned long long addr;
};
union pdpte_t
{
struct
{
unsigned long long present : 1;
unsigned long long write : 1;
unsigned long long supervisor : 1;
unsigned long long page_level_write_through : 1;
unsigned long long page_level_cache_disable : 1;
unsigned long long accessed : 1;
unsigned long long reserved1 : 1;
unsigned long long large_page : 1;
unsigned long long ignored_1 : 3;
unsigned long long restart : 1;
unsigned long long pfn : 36;
unsigned long long reserved2 : 4;
unsigned long long ignored_2 : 11;
unsigned long long execute_disable : 1;
};
unsigned long long addr;
};
union pde_t
{
struct
{
unsigned long long present : 1;
unsigned long long write : 1;
unsigned long long supervisor : 1;
unsigned long long page_level_write_through : 1;
unsigned long long page_level_cache_disable : 1;
unsigned long long accessed : 1;
unsigned long long reserved1 : 1;
unsigned long long large_page : 1;
unsigned long long ignored_1 : 3;
unsigned long long restart : 1;
unsigned long long pfn : 36;
unsigned long long reserved2 : 4;
unsigned long long ignored_2 : 11;
unsigned long long execute_disable : 1;
};
unsigned long long addr;
};
union pde_2mb_t
{
struct
{
unsigned long long present : 1;
unsigned long long write : 1;
unsigned long long supervisor : 1;
unsigned long long page_level_write_through : 1;
unsigned long long page_level_cache_disable : 1;
unsigned long long accessed : 1;
unsigned long long dirty : 1;
unsigned long long large_page : 1;
unsigned long long global : 1;
unsigned long long ignored_1 : 2;
unsigned long long restart : 1;
unsigned long long pat : 1;
unsigned long long reserved1 : 8;
unsigned long long pfn : 27;
unsigned long long reserved2 : 4;
unsigned long long ignored_2 : 7;
unsigned long long protection_key : 4;
unsigned long long execute_disable : 1;
};
unsigned long long addr;
};
union pte_t
{
struct
{
unsigned long long present : 1;
unsigned long long write : 1;
unsigned long long supervisor : 1;
unsigned long long page_level_write_through : 1;
unsigned long long page_level_cache_disable : 1;
unsigned long long accessed : 1;
unsigned long long dirty : 1;
unsigned long long pat : 1;
unsigned long long global : 1;
unsigned long long ignored_1 : 2;
unsigned long long restart : 1;
unsigned long long pfn : 36;
unsigned long long reserved1 : 4;
unsigned long long ignored_2 : 7;
unsigned long long protection_key : 4;
unsigned long long execute_disable : 1;
};
unsigned long long addr;
};