coreboot-kgpe-d16/src/devices/Kconfig

##
## 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