From 906677d6411c3dc579e07967d0137a12392ff314 Mon Sep 17 00:00:00 2001
From: Fabio Fantoni <fabio.fantoni@m2r.biz>
Date: Thu, 5 Sep 2013 12:40:01 +0200
Subject: tools: allow user to specify a system seabios binary

If this option is given don't bother building seabios ourselves.
Likely to be handy for distros who have an existing seabios
package which they want to reuse.

Signed-off-by: Fabio Fantoni <fabio.fantoni@m2r.biz>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
---
 config/Tools.mk.in                |  1 +
 tools/configure                   | 18 ++++++++++++++++++
 tools/configure.ac                | 11 +++++++++++
 tools/firmware/Makefile           |  2 ++
 tools/firmware/hvmloader/Makefile |  6 +++++-
 5 files changed, 37 insertions(+), 1 deletion(-)

diff --git a/config/Tools.mk.in b/config/Tools.mk.in
index e388e4289f..67f57824cf 100644
--- a/config/Tools.mk.in
+++ b/config/Tools.mk.in
@@ -23,6 +23,7 @@ LD86                := @LD86@
 BCC                 := @BCC@
 IASL                := @IASL@
 FETCHER             := @FETCHER@
+SEABIOS_PATH        := @seabios_path@
 
 # Extra folder for libs/includes
 PREPEND_INCLUDES    := @PREPEND_INCLUDES@
diff --git a/tools/configure b/tools/configure
index 4be39fca34..d916cb61ad 100755
--- a/tools/configure
+++ b/tools/configure
@@ -654,6 +654,7 @@ APPEND_LIB
 APPEND_INCLUDES
 PREPEND_LIB
 PREPEND_INCLUDES
+seabios_path
 qemu_xen
 qemu_traditional
 blktap1
@@ -738,6 +739,7 @@ enable_xend
 enable_blktap1
 enable_qemu_traditional
 with_system_qemu
+with_system_seabios
 '
       ac_precious_vars='build_alias
 host_alias
@@ -1409,6 +1411,9 @@ Optional Packages:
                           Use system supplied qemu PATH or qemu (taken from
                           $PATH) as qemu-xen device model instead of building
                           and installing our own version
+  --with-system-seabios[=PATH]
+                          Use system supplied seabios PATH instead of building
+                          and installing our own version
 
 Some influential environment variables:
   CC          C compiler command
@@ -3727,6 +3732,19 @@ fi
 
 
 
+# Check whether --with-system-seabios was given.
+if test "${with_system_seabios+set}" = set; then :
+  withval=$with_system_seabios;
+    case $withval in
+        no) seabios_path= ;;
+        *)  seabios_path=$withval ;;
+    esac
+
+fi
+
+
+
+
 
 
 
diff --git a/tools/configure.ac b/tools/configure.ac
index 1f576819a8..2e57bfc0a0 100644
--- a/tools/configure.ac
+++ b/tools/configure.ac
@@ -97,6 +97,17 @@ AS_IF([test "x$qemu_xen" = "xn"], [
 ])
 AC_SUBST(qemu_xen)
 
+AC_ARG_WITH([system-seabios],
+    AS_HELP_STRING([--with-system-seabios@<:@=PATH@:>@],
+       [Use system supplied seabios PATH instead of building and installing
+        our own version]),[
+    case $withval in
+        no) seabios_path= ;;
+        *)  seabios_path=$withval ;;
+    esac
+],[])
+AC_SUBST(seabios_path)
+
 AC_ARG_VAR([PREPEND_INCLUDES],
     [List of include folders to prepend to CFLAGS (without -I)])
 AC_ARG_VAR([PREPEND_LIB],
diff --git a/tools/firmware/Makefile b/tools/firmware/Makefile
index aff8e564e9..f0647655e2 100644
--- a/tools/firmware/Makefile
+++ b/tools/firmware/Makefile
@@ -7,7 +7,9 @@ INST_DIR := $(DESTDIR)$(XENFIRMWAREDIR)
 
 SUBDIRS-y :=
 SUBDIRS-$(CONFIG_OVMF) += ovmf
+ifeq ($(SEABIOS_PATH),)
 SUBDIRS-$(CONFIG_SEABIOS) += seabios-dir
+endif
 SUBDIRS-$(CONFIG_ROMBIOS) += rombios
 SUBDIRS-$(CONFIG_ROMBIOS) += vgabios
 SUBDIRS-$(CONFIG_ROMBIOS) += etherboot
diff --git a/tools/firmware/hvmloader/Makefile b/tools/firmware/hvmloader/Makefile
index c6e7376274..8ab1429ccc 100644
--- a/tools/firmware/hvmloader/Makefile
+++ b/tools/firmware/hvmloader/Makefile
@@ -70,7 +70,11 @@ endif
 ifeq ($(CONFIG_SEABIOS),y)
 OBJS += seabios.o
 CFLAGS += -DENABLE_SEABIOS
-SEABIOS_ROM := $(SEABIOS_DIR)/out/bios.bin
+ifeq ($(SEABIOS_PATH),)
+	SEABIOS_ROM := $(SEABIOS_DIR)/out/bios.bin
+else
+	SEABIOS_ROM := $(SEABIOS_PATH)
+endif
 ROMS += $(SEABIOS_ROM)
 endif
 
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