Soon there will be more than one modules (in separate packages) that need
to have an understanding about the GUID used in the VenHw() device path
nodes that describe virtio-mmio transports. Define such a GUID explicitly.

Preserve the current value (which happens to be the FILE_GUID of
ArmPlatformPkg/ArmVirtualizationPkg/VirtFdtDxe/VirtFdtDxe.inf) for
compatibility with external users.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <ler...@redhat.com>
---
 OvmfPkg/Include/Guid/VirtioMmioTransport.h | 25 +++++++++++++++++++++++++
 OvmfPkg/OvmfPkg.dec                        |  1 +
 2 files changed, 26 insertions(+)

diff --git a/OvmfPkg/Include/Guid/VirtioMmioTransport.h 
b/OvmfPkg/Include/Guid/VirtioMmioTransport.h
new file mode 100644
index 0000000..f17d7b1
--- /dev/null
+++ b/OvmfPkg/Include/Guid/VirtioMmioTransport.h
@@ -0,0 +1,25 @@
+/** @file
+  Recommended GUID to be used in the Vendor Hardware device path nodes that
+  identify virtio-mmio transports.
+
+  Copyright (C) 2014, Red Hat, Inc.
+
+  This program and the accompanying materials are licensed and made available
+  under the terms and conditions of the BSD License that accompanies this
+  distribution. The full text of the license may be found at
+  http://opensource.org/licenses/bsd-license.php.
+
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT
+  WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#ifndef __VIRTIO_MMIO_TRANSPORT_H__
+#define __VIRTIO_MMIO_TRANSPORT_H__
+
+#define VIRTIO_MMIO_TRANSPORT_GUID \
+{0x837dca9e, 0xe874, 0x4d82, {0xb2, 0x9a, 0x23, 0xfe, 0x0e, 0x23, 0xd1, 0xe2}}
+
+extern EFI_GUID gVirtioMmioTransportGuid;
+
+#endif
diff --git a/OvmfPkg/OvmfPkg.dec b/OvmfPkg/OvmfPkg.dec
index 8802392..41db92d 100644
--- a/OvmfPkg/OvmfPkg.dec
+++ b/OvmfPkg/OvmfPkg.dec
@@ -52,6 +52,7 @@
   gUefiOvmfPkgTokenSpaceGuid      = {0x93bb96af, 0xb9f2, 0x4eb8, {0x94, 0x62, 
0xe0, 0xba, 0x74, 0x56, 0x42, 0x36}}
   gEfiXenInfoGuid                 = {0xd3b46f3b, 0xd441, 0x1244, {0x9a, 0x12, 
0x0, 0x12, 0x27, 0x3f, 0xc1, 0x4d}}
   gOvmfPlatformConfigGuid         = {0x7235c51c, 0x0c80, 0x4cab, {0x87, 0xac, 
0x3b, 0x08, 0x4a, 0x63, 0x04, 0xb1}}
+  gVirtioMmioTransportGuid        = {0x837dca9e, 0xe874, 0x4d82, {0xb2, 0x9a, 
0x23, 0xfe, 0x0e, 0x23, 0xd1, 0xe2}}
 
 [Protocols]
   gVirtioDeviceProtocolGuid       = {0xfa920010, 0x6785, 0x4941, {0xb6, 0xec, 
0x49, 0x8c, 0x57, 0x9f, 0x16, 0x0a}}
-- 
1.8.3.1



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