[PATCH v4 1/7] OvmfPkg: add definition of LINUX_EFI_INITRD_MEDIA_GUID

["Ard Biesheuvel" <ard.biesheuvel@linaro.org>]

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.

Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2564
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
---
 OvmfPkg/Include/Guid/LinuxEfiInitrdMedia.h | 17 +++++++++++++++++
 OvmfPkg/OvmfPkg.dec                        |  1 +
 2 files changed, 18 insertions(+)

diff --git a/OvmfPkg/Include/Guid/LinuxEfiInitrdMedia.h b/OvmfPkg/Include/Guid/LinuxEfiInitrdMedia.h
new file mode 100644
index 000000000000..83fc3fc79aa6
--- /dev/null
+++ b/OvmfPkg/Include/Guid/LinuxEfiInitrdMedia.h
@@ -0,0 +1,17 @@
+/** @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
diff --git a/OvmfPkg/OvmfPkg.dec b/OvmfPkg/OvmfPkg.dec
index 4c5b6511cb97..6849a79cd8b0 100644
--- a/OvmfPkg/OvmfPkg.dec
+++ b/OvmfPkg/OvmfPkg.dec
@@ -86,6 +86,7 @@ [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}}
 
 [Protocols]
   gVirtioDeviceProtocolGuid           = {0xfa920010, 0x6785, 0x4941, {0xb6, 0xec, 0x49, 0x8c, 0x57, 0x9f, 0x16, 0x0a}}
-- 
2.17.1