[RFC PATCH v2 10/10] fadump: Introduce config option for firmware assisted dump feature
From: Mahesh J Salgaonkar <hidden>
Date: 2011-09-29 15:12:10
Also in:
lkml
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
From: Mahesh Salgaonkar <redacted> This patch introduces a new config option CONFIG_FA_DUMP for firmware assisted dump feature on Powerpc (ppc64) architecture. Signed-off-by: Mahesh Salgaonkar <redacted> --- arch/powerpc/Kconfig | 13 +++++++++++++ 1 files changed, 13 insertions(+), 0 deletions(-)
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