hc
2024-05-10 37f49e37ab4cb5d0bc4c60eb5c6d4dd57db767bb
kernel/fs/pstore/Kconfig
....@@ -1,3 +1,4 @@
1
+# SPDX-License-Identifier: GPL-2.0-only
12 config PSTORE
23 tristate "Persistent store support"
34 select CRYPTO if PSTORE_COMPRESS
....@@ -114,21 +115,10 @@
114115 When the option is enabled, pstore will log all kernel
115116 messages, even if no oops or panic happened.
116117
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-config PSTORE_CONSOLE_FORCE
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- bool "Log kernel console messages ignore loglevel setting"
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- depends on PSTORE_CONSOLE
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- help
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- When the option is enabled, allow all kernel messages
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- log to the pstore console. Enable this with a kernel bool
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- parameter like "pstore_con_force=1".
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-
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-config PSTORE_CONSOLE_FORCE_ON
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- bool "Log kernel console messages ignore loglevel setting on by default"
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- depends on PSTORE_CONSOLE_FORCE
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-
129118 config PSTORE_PMSG
130119 bool "Log user space messages"
131120 depends on PSTORE
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+ select RT_MUTEXES
132122 help
133123 When the option is enabled, pstore will export a character
134124 interface /dev/pmsg0 to log user space messages. On reboot
....@@ -153,7 +143,6 @@
153143 tristate "Log panic/oops to a RAM buffer"
154144 depends on PSTORE
155145 depends on HAS_IOMEM
156
- depends on HAVE_MEMBLOCK
157146 select REED_SOLOMON
158147 select REED_SOLOMON_ENC8
159148 select REED_SOLOMON_DEC8
....@@ -166,10 +155,120 @@
166155
167156 For more information, see Documentation/admin-guide/ramoops.rst.
168157
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-config PSTORE_MCU_LOG
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- bool "Print mcu log by linux"
158
+config PSTORE_ZONE
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+ tristate
171160 depends on PSTORE
172161 help
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- When your soc has several mcu, you can get their log by cat command
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+ The common layer for pstore/blk (and pstore/ram in the future)
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+ to manage storage in zones.
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+
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+config PSTORE_BLK
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+ tristate "Log panic/oops to a block device"
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+ depends on PSTORE
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+ depends on BLOCK
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+ depends on BROKEN
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+ select PSTORE_ZONE
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+ default n
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+ help
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+ This enables panic and oops message to be logged to a block dev
174
+ where it can be read back at some later point.
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+
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+ For more information, see Documentation/admin-guide/pstore-blk.rst
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+
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+ If unsure, say N.
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+
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+config PSTORE_BLK_BLKDEV
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+ string "block device identifier"
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+ depends on PSTORE_BLK
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+ default ""
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+ help
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+ Which block device should be used for pstore/blk.
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+
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+ It accepts the following variants:
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+ 1) <hex_major><hex_minor> device number in hexadecimal representation,
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+ with no leading 0x, for example b302.
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+ 2) /dev/<disk_name> represents the device name of disk
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+ 3) /dev/<disk_name><decimal> represents the device name and number
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+ of partition - device number of disk plus the partition number
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+ 4) /dev/<disk_name>p<decimal> - same as the above, this form is
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+ used when disk name of partitioned disk ends with a digit.
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+ 5) PARTUUID=00112233-4455-6677-8899-AABBCCDDEEFF representing the
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+ unique id of a partition if the partition table provides it.
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+ The UUID may be either an EFI/GPT UUID, or refer to an MSDOS
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+ partition using the format SSSSSSSS-PP, where SSSSSSSS is a zero-
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+ filled hex representation of the 32-bit "NT disk signature", and PP
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+ is a zero-filled hex representation of the 1-based partition number.
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+ 6) PARTUUID=<UUID>/PARTNROFF=<int> to select a partition in relation
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+ to a partition with a known unique id.
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+ 7) <major>:<minor> major and minor number of the device separated by
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+ a colon.
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+
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+ NOTE that, both Kconfig and module parameters can configure
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+ pstore/blk, but module parameters have priority over Kconfig.
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+
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+config PSTORE_BLK_KMSG_SIZE
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+ int "Size in Kbytes of kmsg dump log to store"
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+ depends on PSTORE_BLK
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+ default 64
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+ help
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+ This just sets size of kmsg dump (oops, panic, etc) log for
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+ pstore/blk. The size is in KB and must be a multiple of 4.
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+
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+ NOTE that, both Kconfig and module parameters can configure
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+ pstore/blk, but module parameters have priority over Kconfig.
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+
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+config PSTORE_BLK_MAX_REASON
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+ int "Maximum kmsg dump reason to store"
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+ depends on PSTORE_BLK
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+ default 2
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+ help
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+ The maximum reason for kmsg dumps to store. The default is
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+ 2 (KMSG_DUMP_OOPS), see include/linux/kmsg_dump.h's
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+ enum kmsg_dump_reason for more details.
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+
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+ NOTE that, both Kconfig and module parameters can configure
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+ pstore/blk, but module parameters have priority over Kconfig.
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+
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+config PSTORE_BLK_PMSG_SIZE
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+ int "Size in Kbytes of pmsg to store"
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+ depends on PSTORE_BLK
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+ depends on PSTORE_PMSG
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+ default 64
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+ help
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+ This just sets size of pmsg (pmsg_size) for pstore/blk. The size is
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+ in KB and must be a multiple of 4.
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+
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+ NOTE that, both Kconfig and module parameters can configure
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+ pstore/blk, but module parameters have priority over Kconfig.
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+
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+config PSTORE_BLK_CONSOLE_SIZE
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+ int "Size in Kbytes of console log to store"
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+ depends on PSTORE_BLK
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+ depends on PSTORE_CONSOLE
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+ default 64
249
+ help
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+ This just sets size of console log (console_size) to store via
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+ pstore/blk. The size is in KB and must be a multiple of 4.
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+
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+ NOTE that, both Kconfig and module parameters can configure
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+ pstore/blk, but module parameters have priority over Kconfig.
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+
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+config PSTORE_BLK_FTRACE_SIZE
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+ int "Size in Kbytes of ftrace log to store"
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+ depends on PSTORE_BLK
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+ depends on PSTORE_FTRACE
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+ default 64
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+ help
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+ This just sets size of ftrace log (ftrace_size) for pstore/blk. The
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+ size is in KB and must be a multiple of 4.
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+
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+ NOTE that, both Kconfig and module parameters can configure
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+ pstore/blk, but module parameters have priority over Kconfig.
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+
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+config PSTORE_BOOT_LOG
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+ bool "Print boot log by linux"
270
+ depends on PSTORE
271
+ help
272
+ Collect log from loader,uboot,ATF and so on, you can get their log by cat command
174273 through linux shell
175274 If unsure, say N.