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author | Frédéric Danis <frederic.danis@collabora.com> | 2020-03-20 12:59:22 +0300 |
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committer | Tom Rini <trini@konsulko.com> | 2020-10-14 18:16:19 +0300 |
commit | 9744d1a547847dea89277b00606fe4c837c1b4ea (patch) | |
tree | d473ca3cbd4032fc990850875b2f328ae16438d7 /cmd/Kconfig | |
parent | 55fca74a5ba9bb0a101b247f421e81322b945a7b (diff) | |
download | u-boot-9744d1a547847dea89277b00606fe4c837c1b4ea.tar.xz |
cmd: Add command to display or save Linux PStore dumps
This patch adds a new pstore command allowing to display or save ramoops
logs (oops, panic, console, ftrace and user) generated by a previous
kernel crash.
PStore parameters can be set in U-Boot configuration file, or at run-time
using "pstore set" command. Records size should be the same as the ones
used by kernel, and should be a power of 2.
This command allows:
- to display uncompressed logs
- to save compressed or uncompressed logs, compressed logs are saved as a
compressed stream, it may need some work to be able to decompress it,
e.g. adding a fake header:
"printf "\x1f\x8b\x08\x00\x00\x00\x00\x00\x00\x00" |
cat - dmesg-ramoops-0.enc.z | gzip -dc"
- ECC part is not used to check memory corruption
- only 1st FTrace log is displayed or saved
Signed-off-by: Frédéric Danis <frederic.danis@collabora.com>
[trini: Minor updates for current design, correct spacing in rST]
Signed-off-by: Tom Rini <trini@konsulko.com>
Cc: Heinrich Schuchardt <xypron.glpk@gmx.de>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Heiko Schocher <hs@denx.de>
Diffstat (limited to 'cmd/Kconfig')
-rw-r--r-- | cmd/Kconfig | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/cmd/Kconfig b/cmd/Kconfig index 4cb171790b..a3166e4f31 100644 --- a/cmd/Kconfig +++ b/cmd/Kconfig @@ -1751,6 +1751,77 @@ config CMD_QFW feature is to allow easy loading of files passed to qemu-system via -kernel / -initrd +config CMD_PSTORE + bool "pstore" + help + This provides access to Linux PStore with Rammoops backend. The main + feature is to allow to display or save PStore records. + + See doc/pstore.rst for more information. + +if CMD_PSTORE + +config CMD_PSTORE_MEM_ADDR + hex "Memory Address" + depends on CMD_PSTORE + help + Base addr used for PStore ramoops memory, should be identical to + ramoops.mem_address parameter used by kernel + +config CMD_PSTORE_MEM_SIZE + hex "Memory size" + depends on CMD_PSTORE + default "0x10000" + help + Size of PStore ramoops memory, should be identical to ramoops.mem_size + parameter used by kernel, a power of 2 and larger than the sum of the + record sizes + +config CMD_PSTORE_RECORD_SIZE + hex "Dump record size" + depends on CMD_PSTORE + default "0x1000" + help + Size of each dump done on oops/panic, should be identical to + ramoops.record_size parameter used by kernel and a power of 2 + Must be non-zero + +config CMD_PSTORE_CONSOLE_SIZE + hex "Kernel console log size" + depends on CMD_PSTORE + default "0x1000" + help + Size of kernel console log, should be identical to + ramoops.console_size parameter used by kernel and a power of 2 + Must be non-zero + +config CMD_PSTORE_FTRACE_SIZE + hex "FTrace log size" + depends on CMD_PSTORE + default "0x1000" + help + Size of ftrace log, should be identical to ramoops.ftrace_size + parameter used by kernel and a power of 2 + +config CMD_PSTORE_PMSG_SIZE + hex "User space message log size" + depends on CMD_PSTORE + default "0x1000" + help + Size of user space message log, should be identical to + ramoops.pmsg_size parameter used by kernel and a power of 2 + +config CMD_PSTORE_ECC_SIZE + int "ECC size" + depends on CMD_PSTORE + default "0" + help + if non-zero, the option enables ECC support and specifies ECC buffer + size in bytes (1 is a special value, means 16 bytes ECC), should be + identical to ramoops.ramoops_ecc parameter used by kernel + +endif + source "cmd/mvebu/Kconfig" config CMD_TERMINAL |