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authorWeiXiong Liao <liaoweixiong@allwinnertech.com>2020-03-25 11:54:59 +0300
committerKees Cook <keescook@chromium.org>2020-05-30 20:34:03 +0300
commit0dc068265a1c5923ffebf40388fbe93050a77ad1 (patch)
tree50324f476088fdc397522c0b2dde68b5635a4bd4 /fs/pstore/Kconfig
parent17639f67c1d61aba3c05e7703f75cd468f9d484f (diff)
downloadlinux-0dc068265a1c5923ffebf40388fbe93050a77ad1.tar.xz
pstore/zone,blk: Add support for pmsg frontend
Add pmsg support to pstore/blk (through pstore/zone). To enable, pmsg_size must be greater than 0 and a multiple of 4096. Signed-off-by: WeiXiong Liao <liaoweixiong@allwinnertech.com> Link: https://lore.kernel.org/lkml/20200511233229.27745-4-keescook@chromium.org/ Co-developed-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Colin Ian King <colin.king@canonical.com> Link: https://lore.kernel.org/lkml/20200512171932.222102-1-colin.king@canonical.com Co-developed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'fs/pstore/Kconfig')
-rw-r--r--fs/pstore/Kconfig12
1 files changed, 12 insertions, 0 deletions
diff --git a/fs/pstore/Kconfig b/fs/pstore/Kconfig
index 958bec75f907..ef01c48f0ff7 100644
--- a/fs/pstore/Kconfig
+++ b/fs/pstore/Kconfig
@@ -224,3 +224,15 @@ config PSTORE_BLK_MAX_REASON
NOTE that, both Kconfig and module parameters can configure
pstore/blk, but module parameters have priority over Kconfig.
+
+config PSTORE_BLK_PMSG_SIZE
+ int "Size in Kbytes of pmsg to store"
+ depends on PSTORE_BLK
+ depends on PSTORE_PMSG
+ default 64
+ help
+ This just sets size of pmsg (pmsg_size) for pstore/blk. The size is
+ in KB and must be a multiple of 4.
+
+ NOTE that, both Kconfig and module parameters can configure
+ pstore/blk, but module parameters have priority over Kconfig.