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module uefi::proto::memory;
import uefi;
/* 7.2.) Memory Allocation Services */
/* EFI_ALLOCATE_PAGES (7.2.1) and Allocation definitions */
alias FnAllocatePages = fn EfiStatus(AllocateType, MemoryType, usz, PhysicalAddress*);
alias PhysicalAddress = ulong;
alias VirtualAddress = ulong;
enum AllocateType
{
ANY_PAGES,
MAX_ADDRESS,
ADDRESS,
LIMIT
}
enum MemoryType : uint
{
RESERVED,
LOADER_CODE,
LOADER_DATA,
BOOT_SERVICES_CODE,
BOOT_SERVICES_DATA,
RUNTIME_SERVICES_CODE,
RUNTIME_SERVICES_DATA,
CONVENTIONAL,
UNUSABLE,
ACPI_RECLAIM,
ACPI_NVS,
MMIO,
MMIO_PORT_SPACE,
PAL_CODE,
PERSISTENT,
UNACCEPTED,
LIMIT
}
/* EFI_FREE_PAGES (7.2.2) */
alias FnFreePages = fn EfiStatus(PhysicalAddress, usz);
/* EFI_GET_MEMORY_MAP (7.2.3) and related definitions */
alias FnGetMemoryMap = fn EfiStatus(usz*, void*, usz*, usz*, uint*);
const uint MEMORY_DESCRIPTOR_VERSION = 1;
struct MemoryDescriptor
{
MemoryType type;
PhysicalAddress physical_start;
VirtualAddress virtual_start;
ulong num_pages;
MemoryAttribute attribute;
}
struct SystemMemoryMap
{
usz map_key;
usz buffer_size;
usz descriptor_size;
uint descriptor_version;
void* descriptors;
usz descriptors_count;
}
typedef MemoryAttribute = ulong;
const MemoryAttribute MEMORY_UC = (MemoryAttribute)0x0000_0000_0000_0001;
const MemoryAttribute MEMORY_WC = (MemoryAttribute)0x0000_0000_0000_0002;
const MemoryAttribute MEMORY_WT = (MemoryAttribute)0x0000_0000_0000_0004;
const MemoryAttribute MEMORY_WB = (MemoryAttribute)0x0000_0000_0000_0008;
const MemoryAttribute MEMORY_UCE = (MemoryAttribute)0x0000_0000_0000_0010;
const MemoryAttribute MEMORY_WP = (MemoryAttribute)0x0000_0000_0000_1000;
const MemoryAttribute MEMORY_RP = (MemoryAttribute)0x0000_0000_0000_2000;
const MemoryAttribute MEMORY_XP = (MemoryAttribute)0x0000_0000_0000_4000;
const MemoryAttribute MEMORY_NV = (MemoryAttribute)0x0000_0000_0000_8000;
const MemoryAttribute MEMORY_MORE_RELIABLE = (MemoryAttribute)0x0000_0000_0001_0000;
const MemoryAttribute MEMORY_RO = (MemoryAttribute)0x0000_0000_0002_0000;
const MemoryAttribute MEMORY_SP = (MemoryAttribute)0x0000_0000_0004_0000;
const MemoryAttribute MEMORY_CPU_CRYPTO = (MemoryAttribute)0x0000_0000_0008_0000;
const MemoryAttribute MEMORY_HOT_PLUGGABLE = (MemoryAttribute)0x0000_0000_0010_0000;
const MemoryAttribute MEMORY_RUNTIME = (MemoryAttribute)0x8000_0000_0000_0000;
const MemoryAttribute MEMORY_ISA_VALID = (MemoryAttribute)0x4000_0000_0000_0000;
const MemoryAttribute MEMORY_ISA_MASK = (MemoryAttribute)0x0FFF_F000_0000_0000;
/* EFI_ALLOCATE_POOL (7.2.4) */
alias FnAllocatePool = fn EfiStatus(MemoryType, usz, void**);
/* EFI_FREE_POOL (7.2.5) */
alias FnFreePool = fn EfiStatus(void*);
/* 8.4.) Virtual Memory services */
/* 8.4.1.) SetVirtualAddressMap() */
alias FnSetVirtualAddressMap = fn EfiStatus(usz, usz, uint, MemoryDescriptor*);
/* 8.4.2.) ConvertPointer() */
alias FnConvertPointer = fn EfiStatus(usz, void**);
const usz EFI_OPTIONAL_PTR = 0x1;
/* 8.5.3.3.) Items related to capsules */
struct MemoryRange
{
PhysicalAddress address;
ulong length;
}
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