[pve-devel] [PATCH v2 edk2-firmware] fix #4625: restore SMBIOS type 0 table defaults

[Fiona Ebner]

Commit 4cb94f20b0 ("OvmfPkg/SmbiosPlatformDxe: use PcdFirmware*") in
the edk2 submodule made the switch from hard coded values for the
SMBIOS type 0 table to using those defined in the PCD (Platform
Configuration Database). But this changed the value for the vendor
from "EFI Development Kit II / OVMF" to "EDK II" and made version and
release date "unknown". This can cause problems for hardware keys[0],
and the missing date can make Windows unhappy[1].

The PCD information can be specified during build. For the vendor,
just revert to the hardcoded value from before. This should be enough
to resolve the issue in [0]. For version and date, use sensible values
gathered from the build variables. The date format is mm/dd/yyyy while
the version is free-form according to [2], section 7.1.

[0]: https://bugzilla.proxmox.com/show_bug.cgi?id=4625
[1]: https://edk2.groups.io/g/devel/message/100922
[2]: https://www.dmtf.org/sites/default/files/standards/documents/DSP0134_3.2.0.pdf

Signed-off-by: Fiona Ebner <f.ebner at proxmox.com>
---

Changes from v1:
    Based on the discussion in [3] and the fact that the user from bug
    #4625 reportet that it's enough to keep the vendor the same:
    * Add trailing null character to strings, just to be sure.
    * Set version and date to sensible values generated during build.
      This was the intention behind commit 4cb94f20b0 in the first
      place.

[3]: https://edk2.groups.io/g/devel/message/102164

 debian/rules | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/debian/rules b/debian/rules
index acd304d..43fa34e 100755
--- a/debian/rules
+++ b/debian/rules
@@ -37,6 +37,12 @@ OVMF32_4M_SMM_FLAGS =  $(OVMF32_4M_FLAGS) -DSMM_REQUIRE=TRUE
 AAVMF_FLAGS  = $(COMMON_FLAGS) -DTPM2_CONFIG_ENABLE=TRUE
 AAVMF_FLAGS += -DCAVIUM_ERRATUM_27456=TRUE
 
+PCD_RELEASE_DATE = $(shell date -d@$(SOURCE_DATE_EPOCH) +%m/%d/%Y)
+
+PCD_OPTIONS  = --pcd PcdFirmwareVendor=L"EFI Development Kit II / OVMF\\0"
+PCD_OPTIONS += --pcd PcdFirmwareVersionString=L"$(DEB_VERSION_UPSTREAM_REVISION)\\0"
+PCD_OPTIONS += --pcd PcdFirmwareReleaseDateString=L"$(PCD_RELEASE_DATE)\\0"
+
 # Clear variables used internally by the edk2 build system
 undefine WORKSPACE
 undefine ECP_SOURCE
@@ -89,6 +95,7 @@ $(OVMF32_BINARIES) $(OVMF32_IMAGES): debian/setup-build-stamp
 		build -a IA32 \
 			-t $(EDK2_TOOLCHAIN) \
 			-p OvmfPkg/OvmfPkgIa32.dsc \
+			$(PCD_OPTIONS) \
 			$(OVMF32_4M_SMM_FLAGS) -b $(BUILD_TYPE)
 	cp $(OVMF32_BUILD_DIR)/FV/OVMF_CODE.fd \
 		$(OVMF32_INSTALL_DIR)/OVMF32_CODE_4M.secboot.fd
@@ -103,6 +110,7 @@ $(OVMF_BINARIES) $(OVMF_IMAGES): debian/setup-build-stamp
 		build -a X64 \
 			-t $(EDK2_TOOLCHAIN) \
 			-p OvmfPkg/OvmfPkgX64.dsc \
+			$(PCD_OPTIONS) \
 			$(OVMF_2M_FLAGS) -b $(BUILD_TYPE)
 	cp $(OVMF_BUILD_DIR)/FV/OVMF_CODE.fd \
 		$(OVMF_BUILD_DIR)/FV/OVMF.fd $(OVMF_INSTALL_DIR)/
@@ -112,6 +120,7 @@ $(OVMF_BINARIES) $(OVMF_IMAGES): debian/setup-build-stamp
 		build -a IA32 -a X64 \
 			-t $(EDK2_TOOLCHAIN) \
 			-p OvmfPkg/OvmfPkgIa32X64.dsc \
+			$(PCD_OPTIONS) \
 			$(OVMF_4M_FLAGS) -b $(BUILD_TYPE)
 	cp $(OVMF3264_BUILD_DIR)/FV/OVMF_CODE.fd \
 		$(OVMF_INSTALL_DIR)/OVMF_CODE_4M.fd
@@ -122,6 +131,7 @@ $(OVMF_BINARIES) $(OVMF_IMAGES): debian/setup-build-stamp
 		build -a X64 \
 			-t $(EDK2_TOOLCHAIN) \
 			-p OvmfPkg/OvmfPkgX64.dsc \
+			$(PCD_OPTIONS) \
 			$(OVMF_2M_SMM_FLAGS) -b $(BUILD_TYPE)
 	cp $(OVMF_BUILD_DIR)/FV/OVMF_CODE.fd \
 		$(OVMF_INSTALL_DIR)/OVMF_CODE.secboot.fd
@@ -130,6 +140,7 @@ $(OVMF_BINARIES) $(OVMF_IMAGES): debian/setup-build-stamp
 		build -a IA32 -a X64 \
 			-t $(EDK2_TOOLCHAIN) \
 			-p OvmfPkg/OvmfPkgIa32X64.dsc \
+			$(PCD_OPTIONS) \
 			$(OVMF_4M_SMM_FLAGS) -b $(BUILD_TYPE)
 	cp $(OVMF3264_BUILD_DIR)/FV/OVMF_CODE.fd \
 		$(OVMF_INSTALL_DIR)/OVMF_CODE_4M.secboot.fd
-- 
2.30.2