Initialize gEfiMdeModulePkgTokenSpaceGuid.PcdFirmwareVersionString with
with the value of the variable "FIRMWARE_VER", if is is defined. Applies
to all flavors of OvmfPkg.

This behavior is already implemented in ArmVirtXen.dsc. It allows
specifying the firmware version string on the build command line with
-D FIRMARE_VER=...

Introduce a common include file to be used in the .dsc files for the
different OVMF flavors, and add the changes there.  (ArmVirtPkg already
has such a file).

Signed-off-by: Oliver Steffen <osteffen@redhat.com>
---
 OvmfPkg/Include/Dsc/OvmfPkg.dsc.inc | 9 +++++++++
 OvmfPkg/OvmfPkgIa32.dsc             | 3 +++
 OvmfPkg/OvmfPkgIa32X64.dsc          | 3 +++
 OvmfPkg/OvmfPkgX64.dsc              | 5 ++++-
 OvmfPkg/OvmfXen.dsc                 | 3 +++
 5 files changed, 22 insertions(+), 1 deletion(-)
 create mode 100644 OvmfPkg/Include/Dsc/OvmfPkg.dsc.inc

diff --git a/OvmfPkg/Include/Dsc/OvmfPkg.dsc.inc b/OvmfPkg/Include/Dsc/OvmfPkg.dsc.inc
new file mode 100644
index 000000000000..f0bc73ede3df
--- /dev/null
+++ b/OvmfPkg/Include/Dsc/OvmfPkg.dsc.inc
@@ -0,0 +1,9 @@
+##
+#  SPDX-License-Identifier: BSD-2-Clause-Patent
+##
+
+[PcdsFixedAtBuild.common]
+!ifdef $(FIRMWARE_VER)
+  gEfiMdeModulePkgTokenSpaceGuid.PcdFirmwareVersionString|L"$(FIRMWARE_VER)"
+!endif
+
diff --git a/OvmfPkg/OvmfPkgIa32.dsc b/OvmfPkg/OvmfPkgIa32.dsc
index 86177bb94899..76f0d23a2648 100644
--- a/OvmfPkg/OvmfPkgIa32.dsc
+++ b/OvmfPkg/OvmfPkgIa32.dsc
@@ -488,6 +488,9 @@ [PcdsFeatureFlag]
 !endif
 
 [PcdsFixedAtBuild]
+!ifdef $(FIRMWARE_VER)
+  gEfiMdeModulePkgTokenSpaceGuid.PcdFirmwareVersionString|L"$(FIRMWARE_VER)"
+!endif
   gEfiMdeModulePkgTokenSpaceGuid.PcdStatusCodeMemorySize|1
 !if $(SMM_REQUIRE) == FALSE
   gEfiMdeModulePkgTokenSpaceGuid.PcdResetOnMemoryTypeInformationChange|FALSE
diff --git a/OvmfPkg/OvmfPkgIa32X64.dsc b/OvmfPkg/OvmfPkgIa32X64.dsc
index 065b54450647..e10db29ce6f6 100644
--- a/OvmfPkg/OvmfPkgIa32X64.dsc
+++ b/OvmfPkg/OvmfPkgIa32X64.dsc
@@ -494,6 +494,9 @@ [PcdsFeatureFlag]
 !endif
 
 [PcdsFixedAtBuild]
+!ifdef $(FIRMWARE_VER)
+  gEfiMdeModulePkgTokenSpaceGuid.PcdFirmwareVersionString|L"$(FIRMWARE_VER)"
+!endif
   gEfiMdeModulePkgTokenSpaceGuid.PcdStatusCodeMemorySize|1
 !if $(SMM_REQUIRE) == FALSE
   gEfiMdeModulePkgTokenSpaceGuid.PcdResetOnMemoryTypeInformationChange|FALSE
diff --git a/OvmfPkg/OvmfPkgX64.dsc b/OvmfPkg/OvmfPkgX64.dsc
index 3d405cd4ade0..4afbbe1f0d2f 100644
--- a/OvmfPkg/OvmfPkgX64.dsc
+++ b/OvmfPkg/OvmfPkgX64.dsc
@@ -84,6 +84,8 @@ [Defines]
   DEFINE UP_CPU_PEI_GUID  = 280251c4-1d09-4035-9062-839acb5f18c1
   DEFINE UP_CPU_DXE_GUID  = 6490f1c5-ebcc-4665-8892-0075b9bb49b7
 
+!include OvmfPkg/Include/Dsc/OvmfPkg.dsc.inc
+
 [BuildOptions]
   GCC:RELEASE_*_*_CC_FLAGS             = -DMDEPKG_NDEBUG
   INTEL:RELEASE_*_*_CC_FLAGS           = /D MDEPKG_NDEBUG
@@ -514,7 +516,8 @@ [PcdsFeatureFlag]
   gEfiMdeModulePkgTokenSpaceGuid.PcdRequireSelfSignedPk|TRUE
 !endif
 
-[PcdsFixedAtBuild]
+
+[PcdsFixedAtBuild.X64]
   gEfiMdeModulePkgTokenSpaceGuid.PcdStatusCodeMemorySize|1
 !if $(SMM_REQUIRE) == FALSE
   gEfiMdeModulePkgTokenSpaceGuid.PcdResetOnMemoryTypeInformationChange|FALSE
diff --git a/OvmfPkg/OvmfXen.dsc b/OvmfPkg/OvmfXen.dsc
index 8bfc16c2d3d6..c6e96a9c14e0 100644
--- a/OvmfPkg/OvmfXen.dsc
+++ b/OvmfPkg/OvmfXen.dsc
@@ -364,6 +364,9 @@ [PcdsFeatureFlag]
 !endif
 
 [PcdsFixedAtBuild]
+!ifdef $(FIRMWARE_VER)
+  gEfiMdeModulePkgTokenSpaceGuid.PcdFirmwareVersionString|L"$(FIRMWARE_VER)"
+!endif
   gEfiMdeModulePkgTokenSpaceGuid.PcdPciDisableBusEnumeration|TRUE
   gEfiMdeModulePkgTokenSpaceGuid.PcdStatusCodeMemorySize|1
   gEfiMdeModulePkgTokenSpaceGuid.PcdResetOnMemoryTypeInformationChange|FALSE
-- 
2.40.0



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