[WATCHDOG] HP ProLiant WatchDog driver

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>

1 files changed, 12 insertions, 0 deletions

diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 591e3f399114..254d115cafab 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -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