[PATCH v3 2/2] powerpc/fadump: update documentation about 'fadump_append=' parameter

[Hari Bathini]

With the introduction of 'fadump_append=' parameter to pass additional
parameters to fadump (capture) kernel, update documentation about it.

Signed-off-by: Hari Bathini <hbathini at linux.vnet.ibm.com>
---
 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.