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 <jbra...@nvidia.com> --- MdePkg/MdePkg.dec | 5 ++++ OvmfPkg/OvmfPkg.dec | 1 - MdePkg/Include/Guid/LinuxEfiInitrdMedia.h | 31 ++++++++++++++++++++++ OvmfPkg/Include/Guid/LinuxEfiInitrdMedia.h | 17 ------------ 4 files changed, 36 insertions(+), 18 deletions(-) create mode 100644 MdePkg/Include/Guid/LinuxEfiInitrdMedia.h delete mode 100644 OvmfPkg/Include/Guid/LinuxEfiInitrdMedia.h diff --git a/MdePkg/MdePkg.dec b/MdePkg/MdePkg.dec index c5319fdd71ca..a28a2daaffa8 100644 --- a/MdePkg/MdePkg.dec +++ b/MdePkg/MdePkg.dec @@ -818,6 +818,11 @@ [Guids] # gTianoCustomDecompressGuid = { 0xA31280AD, 0x481E, 0x41B6, { 0x95, 0xE8, 0x12, 0x7F, 0x4C, 0x98, 0x47, 0x79 }} + # + # GUID used to provide initrd to linux via LoadFile2 protocol + # + gLinuxEfiInitrdMediaGuid = {0x5568e427, 0x68fc, 0x4f3d, {0xac, 0x74, 0xca, 0x55, 0x52, 0x31, 0xcc, 0x68}} + [Guids.IA32, Guids.X64] ## Include/Guid/Cper.h gEfiIa32X64ErrorTypeCacheCheckGuid = { 0xA55701F5, 0xE3EF, 0x43de, { 0xAC, 0x72, 0x24, 0x9B, 0x57, 0x3F, 0xAD, 0x2C }} diff --git a/OvmfPkg/OvmfPkg.dec b/OvmfPkg/OvmfPkg.dec index 6ae733f6e39f..3153f5ae4540 100644 --- a/OvmfPkg/OvmfPkg.dec +++ b/OvmfPkg/OvmfPkg.dec @@ -118,7 +118,6 @@ [Guids] gMicrosoftVendorGuid = {0x77fa9abd, 0x0359, 0x4d32, {0xbd, 0x60, 0x28, 0xf4, 0xe7, 0x8f, 0x78, 0x4b}} gEfiLegacyBiosGuid = {0x2E3044AC, 0x879F, 0x490F, {0x97, 0x60, 0xBB, 0xDF, 0xAF, 0x69, 0x5F, 0x50}} gEfiLegacyDevOrderVariableGuid = {0xa56074db, 0x65fe, 0x45f7, {0xbd, 0x21, 0x2d, 0x2b, 0xdd, 0x8e, 0x96, 0x52}} - gLinuxEfiInitrdMediaGuid = {0x5568e427, 0x68fc, 0x4f3d, {0xac, 0x74, 0xca, 0x55, 0x52, 0x31, 0xcc, 0x68}} gQemuKernelLoaderFsMediaGuid = {0x1428f772, 0xb64a, 0x441e, {0xb8, 0xc3, 0x9e, 0xbd, 0xd7, 0xf8, 0x93, 0xc7}} gGrubFileGuid = {0xb5ae312c, 0xbc8a, 0x43b1, {0x9c, 0x62, 0xeb, 0xb8, 0x26, 0xdd, 0x5d, 0x07}} gConfidentialComputingSecretGuid = {0xadf956ad, 0xe98c, 0x484c, {0xae, 0x11, 0xb5, 0x1c, 0x7d, 0x33, 0x64, 0x47}} diff --git a/MdePkg/Include/Guid/LinuxEfiInitrdMedia.h b/MdePkg/Include/Guid/LinuxEfiInitrdMedia.h new file mode 100644 index 000000000000..0e7db8bd8140 --- /dev/null +++ b/MdePkg/Include/Guid/LinuxEfiInitrdMedia.h @@ -0,0 +1,31 @@ +/** @file + GUID definition for the Linux Initrd media device path + + Linux distro boot generally relies on an initial ramdisk (initrd) + which is provided by the loader, and which contains additional kernel + modules (for storage and network, for instance), and the initial user + space startup code, i.e., the code which brings up the user space side + of the entire OS. + + In order to provide a standard method to locate this file, + the GUID defined in this file is used to describe the device path + for a LoadFile2 Protocol instance that is responsible for loading the initrd file. + + The kernel EFI Stub will locate and use this instance to load the initrd, + therefore the firmware/loader should install an instance of this to load the + relevant initrd. + + Copyright (c) 2020, Arm, Ltd. All rights reserved.<BR> + + SPDX-License-Identifier: BSD-2-Clause-Patent +**/ + +#ifndef LINUX_EFI_INITRD_MEDIA_GUID_H__ +#define LINUX_EFI_INITRD_MEDIA_GUID_H__ + +#define LINUX_EFI_INITRD_MEDIA_GUID \ + {0x5568e427, 0x68fc, 0x4f3d, {0xac, 0x74, 0xca, 0x55, 0x52, 0x31, 0xcc, 0x68}} + +extern EFI_GUID gLinuxEfiInitrdMediaGuid; + +#endif diff --git a/OvmfPkg/Include/Guid/LinuxEfiInitrdMedia.h b/OvmfPkg/Include/Guid/LinuxEfiInitrdMedia.h deleted file mode 100644 index 83fc3fc79aa6..000000000000 --- a/OvmfPkg/Include/Guid/LinuxEfiInitrdMedia.h +++ /dev/null @@ -1,17 +0,0 @@ -/** @file - GUID definition for the Linux Initrd media device path - - Copyright (c) 2020, Arm, Ltd. All rights reserved.<BR> - - SPDX-License-Identifier: BSD-2-Clause-Patent -**/ - -#ifndef LINUX_EFI_INITRD_MEDIA_GUID_H__ -#define LINUX_EFI_INITRD_MEDIA_GUID_H__ - -#define LINUX_EFI_INITRD_MEDIA_GUID \ - {0x5568e427, 0x68fc, 0x4f3d, {0xac, 0x74, 0xca, 0x55, 0x52, 0x31, 0xcc, 0x68}} - -extern EFI_GUID gLinuxEfiInitrdMediaGuid; - -#endif -- 2.25.1 -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#78232): https://edk2.groups.io/g/devel/message/78232 Mute This Topic: https://groups.io/mt/84486005/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
