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misc: Dynamically allocate EFI memmap copy

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mintsuki 2022-10-07 07:49:47 +02:00
parent 53d20619ec
commit af80341c8c
1 changed files with 8 additions and 3 deletions
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11
common/lib/misc.c
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@ -111,8 +111,6 @@ uint32_t hex2bin(uint8_t *str, uint32_t size) {
no_unwind bool efi_boot_services_exited = false;
#define EFI_COPY_MAX_ENTRIES 2048
bool efi_exit_boot_services(void) {
EFI_STATUS status;
@ -134,6 +132,14 @@ bool efi_exit_boot_services(void) {
goto fail;
}
EFI_MEMORY_DESCRIPTOR *efi_copy;
status = gBS->AllocatePool(EfiLoaderData, efi_mmap_size * 2, (void **)&efi_copy);
if (status) {
goto fail;
}
const size_t EFI_COPY_MAX_ENTRIES = (efi_mmap_size * 2) / efi_desc_size;
size_t retries = 0;
retry:
@ -163,7 +169,6 @@ retry:
// Go through new EFI memmap and free up bootloader entries
size_t entry_count = efi_mmap_size / efi_desc_size;
EFI_MEMORY_DESCRIPTOR *efi_copy = ext_mem_alloc(EFI_COPY_MAX_ENTRIES * efi_desc_size);
size_t efi_copy_i = 0;
for (size_t i = 0; i < entry_count; i++) {