[PATCH v3 2/2] powerpc/fadump: update documentation about 'fadump_append=' parameter
From: Hari Bathini <hidden>
Date: 2017-04-26 07:37:40
Subsystem:
documentation, the rest · Maintainers:
Jonathan Corbet, Linus Torvalds
With the introduction of 'fadump_append=' parameter to pass additional parameters to fadump (capture) kernel, update documentation about it. Signed-off-by: Hari Bathini <redacted> --- Documentation/powerpc/firmware-assisted-dump.txt | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/Documentation/powerpc/firmware-assisted-dump.txt b/Documentation/powerpc/firmware-assisted-dump.txt
index 3007bc9..8e12380 100644
--- a/Documentation/powerpc/firmware-assisted-dump.txt
+++ b/Documentation/powerpc/firmware-assisted-dump.txt@@ -158,7 +158,11 @@ How to enable firmware-assisted dump (fadump): 1. Set config option CONFIG_FA_DUMP=y and build kernel. 2. Boot into linux kernel with 'fadump=on' kernel cmdline option. -3. Optionally, user can also set 'fadump_reserve_mem=' kernel cmdline +3. A user can pass additional kernel parameters as a comma separated list + through 'fadump_append=' parameter, to be enforced when fadump is active. + This can be used to pass parameters like nr_cpus=1, numa=off to reduce + memory consumption during dump capture. +4. Optionally, user can also set 'fadump_reserve_mem=' kernel cmdline to specify size of the memory to reserve for boot memory dump preservation.