ipxe: produce a single binary from its build

And switch hvmloader/Makefile to use that binary. This will help later
when we change hvmloader to pick a user provided binary.

No functional change.

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Acked-by: Jan Beulich <jbeulich@suse.com>

tools/firmware/etherboot/Makefile

@@ -18,11 +18,16 @@ D=ipxe
 T=ipxe.tar.gz
 
 ROMS = $(addprefix $D/src/bin/, $(addsuffix .rom, $(ETHERBOOT_NICS)))
+ROM = $D/src/bin/ipxe.bin
 
 .NOTPARALLEL:
 
 .PHONY: all
-all: $(ROMS)
+all: $(ROM)
+
+$(ROM): $(ROMS)
+	cat $^ > $@.tmp
+	mv -f $@.tmp $@
 
 %.rom: $D/src/arch/i386/Makefile
 	$(MAKE) -C $D/src bin/$(*F).rom

tools/firmware/hvmloader/Makefile

@@ -51,7 +51,7 @@ CIRRUSVGA_ROM := ../vgabios/VGABIOS-lgpl-latest.cirrus.debug.bin
 else
 CIRRUSVGA_ROM := ../vgabios/VGABIOS-lgpl-latest.cirrus.bin
 endif
-ETHERBOOT_ROMS := $(addprefix ../etherboot/ipxe/src/bin/, $(addsuffix .rom, $(ETHERBOOT_NICS)))
+ETHERBOOT_ROM := ../etherboot/ipxe/src/bin/ipxe.bin
 endif
 
 ROMS := 
@@ -60,7 +60,7 @@ ifeq ($(CONFIG_ROMBIOS),y)
 OBJS += optionroms.o 32bitbios_support.o rombios.o
 CFLAGS += -DENABLE_ROMBIOS
 ROMBIOS_ROM := $(ROMBIOS_DIR)/BIOS-bochs-latest
-ROMS += $(ROMBIOS_ROM) $(STDVGA_ROM) $(CIRRUSVGA_ROM) $(ETHERBOOT_ROMS)
+ROMS += $(ROMBIOS_ROM) $(STDVGA_ROM) $(CIRRUSVGA_ROM) $(ETHERBOOT_ROM)
 endif
 
 .PHONY: all
@@ -105,9 +105,9 @@ ifneq ($(CIRRUSVGA_ROM),)
 	sh ../../misc/mkhex vgabios_cirrusvga $(CIRRUSVGA_ROM) >> $@.new
 	echo "#endif" >> $@.new
 endif
-ifneq ($(ETHERBOOT_ROMS),)
+ifneq ($(ETHERBOOT_ROM),)
 	echo "#ifdef ROM_INCLUDE_ETHERBOOT" >> $@.new
-	sh ../../misc/mkhex etherboot $(ETHERBOOT_ROMS) >> $@.new
+	sh ../../misc/mkhex etherboot $(ETHERBOOT_ROM) >> $@.new
 	echo "#endif" >> $@.new
 endif