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[WATCHDOG] HP ProLiant WatchDog driver

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Hp is providing a Hardware WatchDog Timer driver that will only work with the
specific HW Timer located in the HP ProLiant iLO 2 ASIC. The iLO 2 HW Timer
will generate a Non-maskable Interrupt (NMI) 9 seconds before physically
resetting the server, by removing power, so that the event can be logged to
the HP Integrated Management Log (IML), a Non-Volatile Random Access Memory
(NVRAM). The logging of the event is performed using the HP ProLiant ROM via
an Industry Standard access known as a BIOS Service Directory Entry.

Signed-off-by: Thomas Mingarelli <thomas.mingarelli@hp.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
This commit is contained in:
Thomas Mingarelli
2007-12-04 17:41:54 +00:00
committed by Wim Van Sebroeck
parent bb59b5578a
commit 7f4da4745c
3 changed files with 939 additions and 0 deletions
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drivers/watchdog/Kconfig
+12
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@@ -402,6 +402,18 @@ config IT8712F_WDT
To compile this driver as a module, choose M here: the
module will be called it8712f_wdt.
config HP_WATCHDOG
tristate "HP Proliant iLO 2 Hardware Watchdog Timer"
depends on X86
help
A software monitoring watchdog and NMI sourcing driver. This driver
will detect lockups and provide stack trace. Also, when an NMI
occurs this driver will make the necessary BIOS calls to log
the cause of the NMI. This is a driver that will only load on a
HP ProLiant system with a minimum of iLO2 support.
To compile this driver as a module, choose M here: the
module will be called hpwdt.
config SC1200_WDT
tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
depends on X86