diff mbox

[RFC,v4,10/10] fadump: Introduce config option for firmware assisted dump feature

Message ID 20111107095630.1997.54984.stgit@mars.in.ibm.com (mailing list archive)
State Superseded
Headers show

Commit Message

Mahesh J Salgaonkar Nov. 7, 2011, 9:56 a.m. UTC 
From: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>

This patch introduces a new config option CONFIG_FA_DUMP for firmware
assisted dump feature on Powerpc (ppc64) architecture.

Signed-off-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
---
 arch/powerpc/Kconfig |   13 +++++++++++++
 1 files changed, 13 insertions(+), 0 deletions(-)

Comments

Amerigo Wang Nov. 10, 2011, 10:10 a.m. UTC | #1 
于 2011年11月07日 17:56, Mahesh J Salgaonkar 写道:
> From: Mahesh Salgaonkar<mahesh@linux.vnet.ibm.com>
>
> This patch introduces a new config option CONFIG_FA_DUMP for firmware
> assisted dump feature on Powerpc (ppc64) architecture.
>

I think this patch can be folded into the 02/10, as this config
is already used there.

Thanks.
diff mbox

Patch

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 6926b61..7ce773c 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -379,6 +379,19 @@  config PHYP_DUMP
 
 	  If unsure, say "N"
 
+config FA_DUMP
+	bool "Firmware-assisted dump"
+	depends on PPC64 && PPC_RTAS && CRASH_DUMP
+	help
+	  A robust mechanism to get reliable kernel crash dump with
+	  assistance from firmware. This approach does not use kexec,
+	  instead firmware assists in booting the kdump kernel
+	  while preserving memory contents. Firmware-assisted dump
+	  is meant to be a kdump replacement offering robustness and
+	  speed not possible without system firmware assistance.
+
+	  If unsure, say "N"
+
 config PPCBUG_NVRAM
 	bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC
 	default y if PPC_PREP