diff options
| author | Gerd Hoffmann <kraxel@redhat.com> | 2013-05-29 13:06:22 +0200 |
|---|---|---|
| committer | Ronald G. Minnich <rminnich@gmail.com> | 2013-06-03 17:32:31 +0200 |
| commit | 038aa29dc283205a993578f0ff3881df12ebdb0a (patch) | |
| tree | dfa76228d6918abb11f84b162460025ce1130e52 /src/console/Kconfig | |
| parent | 66da043e48c65e6d89b385d840e5f7c53e482db9 (diff) | |
console: add support for QEMU's debugcon
Add support for sending debug output to an I/O port.
It can be used together with QEMU's isa-debugcon driver to log the
coreboot output to a file. The port is configurable and defaults
to 0x402 which has established as the de facto standard. For example,
SeaBIOS+OVMF [1] use that one too.
[1] http://www.linux-kvm.org/page/OVMF
Open Virtual Machine Firmware
Change-Id: I0803f7fc70030242f80003e25c9449c37d71975e
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-on: http://review.coreboot.org/3331
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Diffstat (limited to 'src/console/Kconfig')
| -rw-r--r-- | src/console/Kconfig | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/console/Kconfig b/src/console/Kconfig index a613477ab3..46fe2e70a9 100644 --- a/src/console/Kconfig +++ b/src/console/Kconfig @@ -250,6 +250,23 @@ config CONSOLE_CAR_BUFFER_SIZE in the DCACHE based RAM to keep console output before it can be saved in a CBMEM buffer. 3K bytes should be enough even for the BIOS_SPEW level. + +config CONSOLE_DEBUGCON + bool "QEMU debug console output" + depends on BOARD_EMULATION_QEMU_X86 + default y + help + Send coreboot debug output to QEMU's isa-debugcon device: + + qemu-system-x86_64 \ + -chardev file,id=debugcon,path=/dir/file.log \ + -device isa-debugcon,iobase=0x402,chardev=debugcon + +config CONSOLE_DEBUGCON_PORT + hex "QEMU debug console port" + depends on CONSOLE_DEBUGCON + default 0x402 + choice prompt "Default console log level" default DEFAULT_CONSOLE_LOGLEVEL_8 |