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roms: build two seabios binaries

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Adding xhci support to seabios made it jump over the 128k line.
Changing the bios size breaks migration, so we have to keep a
128k seabios binary for old machine types.  New machine types can
use a large 256k bios which should be big enougth for a while.

This patch updates the seabios build process to build seabios twice,
once full featured and once with xen and xhci turned off so the
resulting binary is small enougth to fit into 128k.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Gerd Hoffmann 2013-09-30 11:37:12 +02:00
parent 11938d7863
commit 94e68caaa0
4 changed files with 13 additions and 4 deletions
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7
roms/Makefile
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@ -56,9 +56,10 @@ default:
@echo " the EfiRom utility from edk2 / tianocore)"
@echo " slof -- update slof.bin"
bios: build-seabios-config-seabios
cp seabios/builds/seabios/bios.bin ../pc-bios/bios.bin
cp seabios/builds/seabios/*dsdt.aml ../pc-bios/
bios: build-seabios-config-seabios-128k build-seabios-config-seabios-256k
cp seabios/builds/seabios-128k/bios.bin ../pc-bios/bios.bin
cp seabios/builds/seabios-256k/bios.bin ../pc-bios/bios-256k.bin
cp seabios/builds/seabios-256k/src/fw/*dsdt.aml ../pc-bios/
seavgabios: $(patsubst %,seavgabios-%,$(vgabios_variants))

1
roms/config.seabios
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@ -1 +0,0 @@
# empty, default config works for us

6
roms/config.seabios-128k Normal file
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@ -0,0 +1,6 @@
# for qemu machine types 1.7 + older
# need to turn off features (xhci) to make it fit into 128k
CONFIG_QEMU=y
CONFIG_ROM_SIZE=128
CONFIG_XEN=n
CONFIG_USB_XHCI=n

3
roms/config.seabios-256k Normal file
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@ -0,0 +1,3 @@
# for qemu machine types 2.0 + newer
CONFIG_QEMU=y
CONFIG_ROM_SIZE=256