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seabios: do normal config, disable oprom in vgarom

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previously, "normal" initmode relied on the vgarom-based
seabios config, which enables option roms, but then lbmk
would insert pci-optionrom-exec 0 for vgarom, and 2 for normal

in libreboot, coreboot roms with "vgarom" in the filename do
pci option rom execution from coreboot, and "normal" roms
do execution from seabios(where seabios is the only payload
provided on normal setups)

this is because payloads like grub can also be used, on vgarom
setups, where coreboot must handle oprom execution
This commit is contained in:
Leah Rowe
2023-05-08 19:45:32 +01:00
parent 450f19bd79
commit 3f1ee01507
4 changed files with 105 additions and 13 deletions
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resources/scripts/build/boot/roms_helper
+4 -10
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@@ -217,7 +217,8 @@ fi
if [ ! -f "${seavgabiosrom}" ] \
|| [ ! -f payload/seabios/seabios_libgfxinit.elf ] \
|| [ ! -f payload/seabios/seabios_vgarom.elf ]; then
|| [ ! -f payload/seabios/seabios_vgarom.elf ] \
|| [ ! -f payload/seabios/seabios_normal.elf ]; then
if [ "${payload_seabios}" = "y" ]; then
./build payload seabios
elif [ "${payload_grub}" = "y" ] \
@@ -361,14 +362,7 @@ make_seabios_rom() {
target_opromloadonly="${3}" # 0 or 1. if 1, only load but don't execute oproms
target_initmode="${4}" # e.g. libgfxinit
if [ "${target_initmode}" = "normal" ]; then
target_seabioself="payload/seabios/seabios_vgarom.elf"
# if normal, etc/pci-optionrom-exec will be set to 2
else
target_seabioself="payload/seabios/seabios_${target_initmode}.elf"
# if libgfxinit, etc/pci-optionrom-exec will be set to 2
# if vgarom, etc/pci-optionrom-exec will be set to 0
fi
target_seabioself="payload/seabios/seabios_${target_initmode}.elf"
target_seavgabios_rom="payload/seabios/seavgabios.bin"
tmprom=$(mktemp -t coreboot_rom.XXXXXXXXXX)
@@ -378,7 +372,7 @@ make_seabios_rom() {
"${cbfstool}" "${tmprom}" add-int -i 3000 -n etc/ps2-keyboard-spinup || exit 1
if [ "${target_initmode}" = "normal" ] || [ "${target_initmode}" = "libgfxinit" ]; then
"${cbfstool}" "${tmprom}" add-int -i 2 -n etc/pci-optionrom-exec || exit 1
elif [ "${target_initmode}" = "vgarom" ]; then
elif [ "${target_initmode}" = "vgarom" ]; then # coreboot executes the rom
"${cbfstool}" "${tmprom}" add-int -i 0 -n etc/pci-optionrom-exec || exit 1
fi # for undefined modes, don't add this integer. rely on SeaBIOS defaults
"${cbfstool}" "${tmprom}" add-int -i 0 -n etc/optionroms-checksum || exit 1