[Qemu-devel] [PATCH 3/5] Add Makefile rules to build nic rom binaries with efi support

[Gerd Hoffmann <kraxel@redhat.com>]

"make -C roms efirom" will build rom binaries with EFI support.
They are composed from three images: legacy bios, efi ia32
and efi x64.  So netbooting via SeaBIOS will continue to work
like it does today, and additionally we get network support
for EFI.  This target needs the EfiRom utility (shipped with
edk2) somewhere in the $PATH.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 roms/Makefile |   49 +++++++++++++++++++++++++++++++++++++------------
 1 file changed, 37 insertions(+), 12 deletions(-)

diff --git a/roms/Makefile b/roms/Makefile
index be33652..3dc5609 100644
--- a/roms/Makefile
+++ b/roms/Makefile
@@ -2,18 +2,29 @@
 vgabios_variants := stdvga cirrus vmware qxl
 pxerom_variants  := e1000 eepro100 ne2k_pci pcnet rtl8139 virtio
 
-pxe-rom-e1000    : VID := 8086
-pxe-rom-e1000    : DID := 100e
-pxe-rom-eepro100 : VID := 8086
-pxe-rom-eepro100 : DID := 1209
-pxe-rom-ne2k_pci : VID := 1050
-pxe-rom-ne2k_pci : DID := 0940
-pxe-rom-pcnet    : VID := 1022
-pxe-rom-pcnet    : DID := 2000
-pxe-rom-rtl8139  : VID := 10ec
-pxe-rom-rtl8139  : DID := 8139
-pxe-rom-virtio   : VID := 1af4
-pxe-rom-virtio   : DID := 1000
+pxe-rom-e1000    efi-rom-e1000    : VID := 8086
+pxe-rom-e1000    efi-rom-e1000    : DID := 100e
+pxe-rom-eepro100 efi-rom-eepro100 : VID := 8086
+pxe-rom-eepro100 efi-rom-eepro100 : DID := 1209
+pxe-rom-ne2k_pci efi-rom-ne2k_pci : VID := 1050
+pxe-rom-ne2k_pci efi-rom-ne2k_pci : DID := 0940
+pxe-rom-pcnet    efi-rom-pcnet    : VID := 1022
+pxe-rom-pcnet    efi-rom-pcnet    : DID := 2000
+pxe-rom-rtl8139  efi-rom-rtl8139  : VID := 10ec
+pxe-rom-rtl8139  efi-rom-rtl8139  : DID := 8139
+pxe-rom-virtio   efi-rom-virtio   : VID := 1af4
+pxe-rom-virtio   efi-rom-virtio   : DID := 1000
+
+#
+# EfiRom utility is shipped with edk2 / tianocore, in BaseTools/
+#
+# We need that to combine multiple images (legacy bios,
+# efi ia32, efi x64) into a single rom binary.
+#
+# We try to find it in the path.  You can also pass the location on
+# the command line, i.e. "make EFIROM=/path/to/EfiRom efirom"
+#
+EFIROM ?= $(shell which EfiRom 2>/dev/null)
 
 default:
 	@echo "nothing is build by default"
@@ -22,6 +33,8 @@ default:
 	@echo "  seavgabios     -- update vgabios binaries (seabios)"
 	@echo "  lgplvgabios    -- update vgabios binaries (lgpl)"
 	@echo "  pxerom         -- update nic roms (bios only)"
+	@echo "  efirom         -- update nic roms (bios+efi, this needs"
+	@echo "                    the EfiRom utility from edk2 / tianocore)"
 
 bios: config.seabios
 	sh configure-seabios.sh $<
@@ -47,3 +60,15 @@ pxerom: $(patsubst %,pxe-rom-%,$(pxerom_variants))
 pxe-rom-%:
 	make -C ipxe/src bin/$(VID)$(DID).rom
 	cp ipxe/src/bin/$(VID)$(DID).rom ../pc-bios/pxe-$*.rom
+
+efirom: $(patsubst %,efi-rom-%,$(pxerom_variants))
+
+efi-rom-%:
+	make -C ipxe/src bin/$(VID)$(DID).rom
+	make -C ipxe/src bin-i386-efi/$(VID)$(DID).efidrv
+	make -C ipxe/src bin-x86_64-efi/$(VID)$(DID).efidrv
+	$(EFIROM) -f "0x$(VID)" -i "0x$(DID)" -l 0x02 \
+		-b ipxe/src/bin/$(VID)$(DID).rom \
+		-ec ipxe/src/bin-i386-efi/$(VID)$(DID).efidrv \
+		-ec ipxe/src/bin-x86_64-efi/$(VID)$(DID).efidrv \
+		-o ../pc-bios/efi-$*.rom
-- 
1.7.9.7