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-rw-r--r--src/devices/Kconfig113
1 files changed, 67 insertions, 46 deletions
diff --git a/src/devices/Kconfig b/src/devices/Kconfig
index 8211bf30f5..08e532d12c 100644
--- a/src/devices/Kconfig
+++ b/src/devices/Kconfig
@@ -59,15 +59,19 @@ config PCI_OPTION_ROM_RUN_REALMODE
(only works on x86/x64 systems)
config PCI_OPTION_ROM_RUN_YABEL
- prompt "Secure Mode"
+ prompt "Secure mode"
bool
help
If you select this option, the x86emu CPU emulator will be used to
execute PCI option ROMs.
- This option 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 native option ROM initialization method.
+
+ This option 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 native option ROM initialization
+ method.
+
This is the default choice for non-x86 systems.
+
endchoice
# TODO: Describe better, and/or make a "choice" selection for this.
@@ -77,50 +81,65 @@ config YABEL_DEBUG_FLAGS
default 0x0
depends on PCI_OPTION_ROM_RUN_YABEL
help
- Set CONFIG_YABEL_DEBUG_FLAGS is a binary switch that allows you
+ CONFIG_YABEL_DEBUG_FLAGS is a binary switch that allows you
to select the following items to debug. 1=on 0=off. After you
- decide what you want to debug create the binary value, convert to hex
- and set the Option (Ex. CONFIG_YABEL_DEBUG_FLAGS = 0x31FF //Debug All).
+ decide what you want to debug create the binary value, convert to
+ hex and set the option.
- |-DEBUG_JMP - print info about JMP and RETF opcodes from x86emu
- ||-DEBUG_TRACE_X86EMU - print _all_ opcodes that are executed by x86emu (WARNING: this will produce a LOT of output)
+ Example for "debug all":
+ CONFIG_YABEL_DEBUG_FLAGS = 0x31FF
+
+ |-DEBUG_JMP - Print info about JMP and RETF opcodes from x86emu
+ ||-DEBUG_TRACE_X86EMU - Print _all_ opcodes that are executed by
+ || x86emu (WARNING: this will produce a LOT
+ || of output)
|||-Currently unused
||||-Currently unused
|||||-Currently unused
- ||||||-DEBUG_PNP - Print Plug And Play access made by option rom
+ ||||||-DEBUG_PNP - Print Plug And Play accesses made by option ROM
|||||||-DEBUG_DISK - Print Disk I/O related messages, currently unused
- ||||||||-DEBUG_PMM - Print messages related to POST Memory Manager (PMM)
- |||||||||-DEBUG_VBE - Print messages related to VESA BIOS Extension (VBE) functions
- ||||||||||-DEBUG_PRINT_INT10 - let INT10 (i.e. character output) calls print messages to Debug output
+ ||||||||-DEBUG_PMM - Print messages related to POST Memory
+ |||||||| Manager (PMM)
+ |||||||||-DEBUG_VBE - Print messages related to VESA BIOS Extension
+ ||||||||| (VBE) functions
+ ||||||||||-DEBUG_PRINT_INT10 - Let INT10 (i.e. character output)
+ |||||||||| calls print messages to debug output
|||||||||||-DEBUG_INTR - Print messages related to interrupt handling
- ||||||||||||-DEBUG_CHECK_VMEM_ACCESS - Print messages related to accesse to certain areas of the virtual Memory (e.g. BDA (BIOS Data Area) or Interrupt Vectors)
- |||||||||||||-DEBUG_MEM - Print memory access made by option rom (NOTE: this also includes accesses to fetch instructions)
- ||||||||||||||-DEBUG_IO - Print I/O access made by option rom
- 11000111111111 - Max Binary Value, Debug All (WARNING: - This could run for hours)
-
- DEBUG_IO 0x0001
- DEBUG_MEM 0x0002
- DEBUG_CHECK_VMEM_ACCESS 0x0004
- DEBUG_INTR 0x0008
- DEBUG_PRINT_INT10 0x0010
- DEBUG_VBE 0x0020
- DEBUG_PMM 0x0040
- DEBUG_DISK 0x0080
- DEBUG_PNP 0x0100
- DEBUG_TRACE_X86EMU 0x1000
- DEBUG_JMP 0x2000
-
- See debug.h for values 0 is no debug output, 0x31ff is _verbose_.
+ ||||||||||||-DEBUG_CHECK_VMEM_ACCESS - Print messages related to
+ |||||||||||| accesses to certain areas of
+ |||||||||||| the virtual memory (e.g. BDA
+ |||||||||||| (BIOS Data Area) or interrupt
+ |||||||||||| vectors)
+ |||||||||||||-DEBUG_MEM - Print memory accesses made by option ROM
+ ||||||||||||| (NOTE: this also includes accesses to
+ ||||||||||||| fetch instructions)
+ ||||||||||||||-DEBUG_IO - Print I/O accesses made by option ROM
+ 11000111111111 - Maximum binary value, i.e. "debug all"
+ (WARNING: This could run for hours)
+
+ DEBUG_IO 0x0001
+ DEBUG_MEM 0x0002
+ DEBUG_CHECK_VMEM_ACCESS 0x0004
+ DEBUG_INTR 0x0008
+ DEBUG_PRINT_INT10 0x0010
+ DEBUG_VBE 0x0020
+ DEBUG_PMM 0x0040
+ DEBUG_DISK 0x0080
+ DEBUG_PNP 0x0100
+ DEBUG_TRACE_X86EMU 0x1000
+ DEBUG_JMP 0x2000
+
+ See debug.h for values. 0 is no debug output, 0x31ff is _verbose_.
config YABEL_PCI_ACCESS_OTHER_DEVICES
- prompt "Allow option roms to acces other devices"
+ prompt "Allow option ROMs to access other devices"
bool
depends on PCI_OPTION_ROM_RUN_YABEL
help
- Per default, YABEL only allows option roms to access the PCI device
+ 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.
+ onboard graphics chips whose option ROM needs to reconfigure the
+ north bridge.
config YABEL_VIRTMEM_LOCATION
prompt "Location of YABEL's virtual memory"
@@ -132,16 +151,17 @@ config YABEL_VIRTMEM_LOCATION
normally located at 16MB.
config YABEL_DIRECTHW
- prompt "Direct Hardware Access"
+ prompt "Direct hardware access"
bool
depends on PCI_OPTION_ROM_RUN_YABEL
help
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).
+ 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).
+
When choosing this option, x86emu will pass through all hardware
- accesses to memory and IO devices to the underlying memory and IO
+ accesses to memory and I/O devices to the underlying memory and I/O
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.
@@ -153,8 +173,9 @@ config BOOTSPLASH
depends on PCI_OPTION_ROM_RUN_YABEL
help
This option shows a graphical bootsplash screen. The grapics are
- loaded from the CBFS file bootsplash.jpg
+ loaded from the CBFS file bootsplash.jpg.
+# TODO: Turn this into a "choice".
config FRAMEBUFFER_VESA_MODE
prompt "VESA framebuffer video mode"
hex
@@ -162,7 +183,7 @@ config FRAMEBUFFER_VESA_MODE
depends on BOOTSPLASH
help
This option sets the resolution used for the coreboot framebuffer and
- bootsplash screen. Set to 0x117 for 1024x768x16. A diligent soul will
+ bootsplash screen. Set to 0x117 for 1024x768x16. A diligent soul will
some day make this a "choice".
config COREBOOT_KEEP_FRAMEBUFFER
@@ -171,10 +192,10 @@ config COREBOOT_KEEP_FRAMEBUFFER
depends on BOOTSPLASH
help
This option keeps the framebuffer mode set after coreboot finishes
- execution. If this option is enabled, coreboot will pass a framebuffer
- entry in its coreboot table and the payload will need a framebuffer
- driver. If this option is disabled, coreboot will switch back to
- text mode before handing control to a payload.
+ execution. If this option is enabled, coreboot will pass a
+ framebuffer entry in its coreboot table and the payload will need a
+ framebuffer driver. If this option is disabled, coreboot will switch
+ back to text mode before handing control to a payload.
config CONSOLE_VGA_MULTI
bool