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0856cdc89e
Add LINUX_EFI_INITRD_MEDIA_GUID to our collection of GUID definitions, it can be used in a media device path to specify a Linux style initrd that can be loaded by the OS using the LoadFile2 protocol. Move these defines to MdePkg from OvmfPkg as these are relevant to non-OVMF targets as well. Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2564 Signed-off-by: Jeff Brasen <jbrasen@nvidia.com> Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com> Acked-by: Ard Biesheuvel <ardb@kernel.org>
31 lines
1.1 KiB
C
31 lines
1.1 KiB
C
/** @file
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GUID definition for the Linux Initrd media device path
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Linux distro boot generally relies on an initial ramdisk (initrd) which is
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provided by the loader, and which contains additional kernel modules (for
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storage and network, for instance), and the initial user space startup code,
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i.e., the code which brings up the user space side of the entire OS.
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In order to provide a standard method to locate this initrd, the GUID defined
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in this file is used to describe the device path for a LoadFile2 Protocol
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instance that is responsible for loading the initrd file.
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The kernel EFI Stub will locate and use this instance to load the initrd,
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therefore the firmware/loader should install an instance of this to load the
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relevant initrd.
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Copyright (c) 2020, Arm, Ltd. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef LINUX_EFI_INITRD_MEDIA_GUID_H_
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#define LINUX_EFI_INITRD_MEDIA_GUID_H_
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#define LINUX_EFI_INITRD_MEDIA_GUID \
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{0x5568e427, 0x68fc, 0x4f3d, {0xac, 0x74, 0xca, 0x55, 0x52, 0x31, 0xcc, 0x68}}
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extern EFI_GUID gLinuxEfiInitrdMediaGuid;
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#endif
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