tag our seabios builds

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
diff --git a/roms/Makefile b/roms/Makefile
index c76cd5b..7b3f156 100644
--- a/roms/Makefile
+++ b/roms/Makefile
@@ -34,6 +34,9 @@
 powerpc_cross_prefix := $(call find-cross-prefix,powerpc)
 x86_64_cross_prefix := $(call find-cross-prefix,x86_64)
 
+# tag our seabios builds
+SEABIOS_VERSION="$(shell cd seabios; git describe --tags --long) by qemu-project.org"
+
 #
 # EfiRom utility is shipped with edk2 / tianocore, in BaseTools/
 #
@@ -75,10 +78,12 @@
 	mkdir -p seabios/builds/$*
 	cp $< seabios/builds/$*/.config
 	$(MAKE) -C seabios \
+		VERSION=$(SEABIOS_VERSION) \
 		CROSS_COMPILE=$(x86_64_cross_prefix) \
 		KCONFIG_CONFIG=$(CURDIR)/seabios/builds/$*/.config \
 		OUT=$(CURDIR)/seabios/builds/$*/ oldnoconfig
 	$(MAKE) -C seabios \
+		VERSION=$(SEABIOS_VERSION) \
 		CROSS_COMPILE=$(x86_64_cross_prefix) \
 		KCONFIG_CONFIG=$(CURDIR)/seabios/builds/$*/.config \
 		OUT=$(CURDIR)/seabios/builds/$*/ all