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#include <libc/string.h>
#include <efi/services.h>
#include <efi/error.h>
#include <stddef.h>
#include "kjarna_efi.h"
void *efi_alloc_pool(size_t size)
{
void *buffer;
efi_errno = gBS->AllocatePool(
EfiLoaderData,
size,
&buffer);
if (EFI_ERROR(efi_errno))
{
return nullptr;
}
return buffer;
}
void *efi_calloc_pool(size_t count, size_t size)
{
void *buffer = efi_alloc_pool(count * size);
if (buffer != nullptr)
{
memset(buffer, 0, count * size);
}
return buffer;
}
void efi_free_pool(void *buffer)
{
efi_errno = gBS->FreePool(buffer);
}
#define KjarnaData EFIX_OS_MEMORY_TYPE(1)
void *efi_mmap(void *addr, size_t length, int prot, int flags, int fd, off_t offset)
{
(void)prot;
(void)flags;
(void)fd;
(void)offset;
EFI_ALLOCATE_TYPE alloc_type = AllocateAnyPages;
EFI_MEMORY_TYPE memory_type = KjarnaData;
void *buffer;
if (addr != nullptr)
{
alloc_type = AllocateAddress;
}
efi_errno = gBS->AllocatePages(
alloc_type,
memory_type,
EFI_SIZE_TO_PAGES(length),
(uintptr_t *)&buffer);
if (EFI_ERROR(efi_errno))
{
return nullptr;
}
return buffer;
}
int efi_munmap(void *addr, size_t length)
{
efi_errno = gBS->FreePages((uintptr_t)addr, EFI_SIZE_TO_PAGES(length));
return !EFI_ERROR(efi_errno) ? 0 : -1;
}
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