From: Mahesh J Salgaonkar <mahesh@linux.vnet.ibm.com>
To: linuxppc-dev <linuxppc-dev@ozlabs.org>,
Linux Kernel <linux-kernel@vger.kernel.org>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Anton Blanchard <anton@samba.org>,
"Eric W. Biederman" <ebiederm@xmission.com>,
Milton Miller <miltonm@bga.com>, Amerigo Wang <amwang@redhat.com>
Subject: [RFC PATCH v3 10/10] fadump: Introduce config option for firmware assisted dump feature
Date: Mon, 31 Oct 2011 22:43:54 +0530 [thread overview]
Message-ID: <20111031171354.12259.92108.stgit@mars.in.ibm.com> (raw)
In-Reply-To: <20111031170200.12259.27663.stgit@mars.in.ibm.com>
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(-)
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
WARNING: multiple messages have this Message-ID (diff)
From: Mahesh J Salgaonkar <mahesh@linux.vnet.ibm.com>
To: linuxppc-dev <linuxppc-dev@ozlabs.org>,
Linux Kernel <linux-kernel@vger.kernel.org>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Haren Myneni <hbabu@us.ibm.com>,
"Eric W. Biederman" <ebiederm@xmission.com>,
Amerigo Wang <amwang@redhat.com>, Milton Miller <miltonm@bga.com>,
Anton Blanchard <anton@samba.org>
Subject: [RFC PATCH v3 10/10] fadump: Introduce config option for firmware assisted dump feature
Date: Mon, 31 Oct 2011 22:43:54 +0530 [thread overview]
Message-ID: <20111031171354.12259.92108.stgit@mars.in.ibm.com> (raw)
In-Reply-To: <20111031170200.12259.27663.stgit@mars.in.ibm.com>
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(-)
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
next prev parent reply other threads:[~2011-10-31 17:14 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-31 17:04 [RFC PATCH v3 00/10] fadump: Firmware-assisted dump support for Powerpc Mahesh J Salgaonkar
2011-10-31 17:04 ` Mahesh J Salgaonkar
2011-10-31 17:05 ` [RFC PATCH v3 01/10] fadump: Add documentation for firmware-assisted dump Mahesh J Salgaonkar
2011-10-31 17:05 ` Mahesh J Salgaonkar
2011-10-31 17:06 ` [RFC PATCH v3 02/10] fadump: Reserve the memory for firmware assisted dump Mahesh J Salgaonkar
2011-10-31 17:06 ` Mahesh J Salgaonkar
2011-10-31 17:07 ` [RFC PATCH v3 03/10] fadump: Register " Mahesh J Salgaonkar
2011-10-31 17:07 ` Mahesh J Salgaonkar
2011-10-31 17:08 ` [RFC PATCH v3 04/10] fadump: Initialize elfcore header and add PT_LOAD program headers Mahesh J Salgaonkar
2011-10-31 17:08 ` Mahesh J Salgaonkar
2011-10-31 17:09 ` [RFC PATCH v3 05/10] fadump: Convert firmware-assisted cpu state dump data into elf notes Mahesh J Salgaonkar
2011-10-31 17:09 ` Mahesh J Salgaonkar
2011-10-31 17:10 ` [RFC PATCH v3 06/10] fadump: Add PT_NOTE program header for vmcoreinfo Mahesh J Salgaonkar
2011-10-31 17:10 ` Mahesh J Salgaonkar
2011-10-31 17:11 ` [RFC PATCH v3 07/10] fadump: Introduce cleanup routine to invalidate /proc/vmcore Mahesh J Salgaonkar
2011-10-31 17:11 ` Mahesh J Salgaonkar
2011-10-31 17:11 ` [RFC PATCH v3 08/10] fadump: Invalidate registration and release reserved memory for general use Mahesh J Salgaonkar
2011-10-31 17:11 ` Mahesh J Salgaonkar
2011-10-31 17:12 ` [RFC PATCH v3 09/10] fadump: Invalidate the fadump registration during machine shutdown Mahesh J Salgaonkar
2011-10-31 17:12 ` Mahesh J Salgaonkar
2011-10-31 17:13 ` Mahesh J Salgaonkar [this message]
2011-10-31 17:13 ` [RFC PATCH v3 10/10] fadump: Introduce config option for firmware assisted dump feature Mahesh J Salgaonkar
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