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##
## This file is part of the coreboot project.
##
## Copyright (C) 2007 coresystems GmbH
## (Written by Stefan Reinauer <stepan@coresystems.de> for coresystems GmbH)
##
## This program is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation; version 2 of the License
##
## This program is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with this program; if not, write to the Free Software
## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
##
config VGA_BRIDGE_SETUP
bool "Setup bridges on path to VGA adapter"
default y
help
Allow bridges to set up legacy decoding ranges for VGA. Don't disable
this unless you're sure you don't want the briges setup for VGA.
# TODO: Explain differences (if any) for onboard cards.
config VGA_ROM_RUN
bool "Run VGA option ROMs"
default y
help
Execute VGA option ROMs, if found. This is required to enable
PCI/AGP/PCI-E video cards.
config PCI_ROM_RUN
bool "Run non-VGA option ROMs"
default y
help
Execute non-VGA PCI option ROMs, if found.
Examples include IDE/SATA controller option ROMs and option ROMs
for network cards (NICs).
choice
prompt "Option ROM execution type"
default PCI_OPTION_ROM_RUN_YABEL if !ARCH_X86
default PCI_OPTION_ROM_RUN_REALMODE if ARCH_X86
depends on PCI_ROM_RUN || VGA_ROM_RUN
config PCI_OPTION_ROM_RUN_REALMODE
prompt "Real mode"
bool
depends on ARCH_X86
help
If you select this option, PCI option ROMs will be executed
natively on the CPU in real mode. No CPU emulation is involved,
so this is the fastest, but also the least secure option.
(only works on x86/x64 systems)
config PCI_OPTION_ROM_RUN_X86EMU
prompt "x86emu"
bool
help
If you select this option, the x86emu CPU emulator will be used to
execute PCI option ROMs.
When choosing this option, x86emu will pass through all hardware
accesses to memory and IO devices to the underlying memory and IO
addresses. While this option prevents option ROMs from doing dirty
tricks with the CPU (such as installing SMM modules or hypervisors),
they can still access all devices in the system.
Choosing x86emu, option ROM execution is slower than native execution
in real mode, but faster than the full system emulation YABEL
This is the default choice for non-x86 systems.
config PCI_OPTION_ROM_RUN_YABEL
prompt "YABEL"
bool
help
If you select this option, the YABEL system emulator will be used to
execute PCI option ROMs.
YABEL consists of two parts: It uses x86emu for the CPU emulation and
additionally provides a PC system emulation that filters bad device and
memory access (such as PCI config space access to other devices than the
initialized one).
This option best prevents option ROMs from doing dirty tricks with the
system (such as installing SMM modules or hypervisors), but it is also
significantly slower than the other option ROM initialization methods.
endchoice
config YABEL_PCI_ACCESS_OTHER_DEVICES
prompt "Allow option roms to acces other devices"
bool
depends on PCI_OPTION_ROM_RUN_YABEL
help
Per default, YABEL only allows option roms to access the PCI device
that they are associated with. However, this causes trouble for some
onboard graphics chips whose option rom needs to reconfigure the
north bridge.
config YABEL_VIRTMEM_LOCATION
prompt "Location of YABEL's virtual memory"
hex
depends on EXPERT
default 0x1000000
help
YABEL requires 1MB memory for its CPU emulation. This memory is
normally located at 16MB.
# TODO: Describe better, and/or make a "choice" selection for this.
config YABEL_DEBUG_FLAGS
prompt "Hex value for YABEL debug flags"
hex
default 0x0
depends on PCI_OPTION_ROM_RUN_YABEL
help
See debug.h for values 0 is no debug output, 0x31ff is _verbose_.
config CONSOLE_VGA_MULTI
bool
default n
config PCI_64BIT_PREF_MEM
bool
default n
config HYPERTRANSPORT_PLUGIN_SUPPORT
bool
default n
config PCIX_PLUGIN_SUPPORT
bool
default y
config PCIEXP_PLUGIN_SUPPORT
bool
default y
config AGP_PLUGIN_SUPPORT
bool
default y
config CARDBUS_PLUGIN_SUPPORT
bool
default y
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