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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include <efi.h>
#include <efilib.h>
#include <stdbool.h>
#include "drivers.h"
#include "efi-string.h"
#include "string-util-fundamental.h"
#include "util.h"
#define QEMU_KERNEL_LOADER_FS_MEDIA_GUID \
{ 0x1428f772, 0xb64a, 0x441e, {0xb8, 0xc3, 0x9e, 0xbd, 0xd7, 0xf8, 0x93, 0xc7 }}
#define VMM_BOOT_ORDER_GUID \
{ 0x668f4529, 0x63d0, 0x4bb5, {0xb6, 0x5d, 0x6f, 0xbb, 0x9d, 0x36, 0xa4, 0x4a }}
/* detect direct boot */
bool is_direct_boot(EFI_HANDLE device) {
EFI_STATUS err;
VENDOR_DEVICE_PATH *dp;
err = BS->HandleProtocol(device, &DevicePathProtocol, (void **) &dp);
if (err != EFI_SUCCESS)
return false;
/* 'qemu -kernel systemd-bootx64.efi' */
if (dp->Header.Type == MEDIA_DEVICE_PATH &&
dp->Header.SubType == MEDIA_VENDOR_DP &&
memcmp(&dp->Guid, &(EFI_GUID)QEMU_KERNEL_LOADER_FS_MEDIA_GUID, sizeof(EFI_GUID)) == 0)
return true;
/* loaded from firmware volume (sd-boot added to ovmf) */
if (dp->Header.Type == MEDIA_DEVICE_PATH &&
dp->Header.SubType == MEDIA_PIWG_FW_VOL_DP)
return true;
return false;
}
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