diff options
| author | Mingarelli, Thomas <Thomas.Mingarelli@hp.com> | 2011-11-07 10:59:00 +0100 |
|---|---|---|
| committer | Rohan Somvanshi <rsomvanshi@nvidia.com> | 2012-01-11 10:13:21 -0800 |
| commit | 5d4e0787d70cdd1c381c0d2c41c40ff6247a6b29 (patch) | |
| tree | 3d753a3006931f456ca7aef4ee7a2423ce72a64e /drivers/watchdog/hpwdt.c | |
| parent | 2a2e703c7c8639a8c53439add0722877eeefabfb (diff) | |
watchdog: hpwdt: Changes to handle NX secure bit in 32bit path
commit e67d668e147c3b4fec638c9e0ace04319f5ceccd upstream.
This patch makes use of the set_memory_x() kernel API in order
to make necessary BIOS calls to source NMIs.
This is needed for SLES11 SP2 and the latest upstream kernel as it appears
the NX Execute Disable has grown in its control.
Signed-off by: Thomas Mingarelli <thomas.mingarelli@hp.com>
Signed-off by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Change-Id: I118282df5d0a473c72f5609a71a5cb25e86ea416
Reviewed-on: http://git-master/r/74199
Reviewed-by: Varun Wadekar <vwadekar@nvidia.com>
Tested-by: Varun Wadekar <vwadekar@nvidia.com>
Diffstat (limited to 'drivers/watchdog/hpwdt.c')
| -rw-r--r-- | drivers/watchdog/hpwdt.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c index 809cbda03d7a..179597713516 100644 --- a/drivers/watchdog/hpwdt.c +++ b/drivers/watchdog/hpwdt.c @@ -230,6 +230,7 @@ static int __devinit cru_detect(unsigned long map_entry, cmn_regs.u1.reax = CRU_BIOS_SIGNATURE_VALUE; + set_memory_x((unsigned long)bios32_entrypoint, (2 * PAGE_SIZE)); asminline_call(&cmn_regs, bios32_entrypoint); if (cmn_regs.u1.ral != 0) { @@ -247,8 +248,10 @@ static int __devinit cru_detect(unsigned long map_entry, if ((physical_bios_base + physical_bios_offset)) { cru_rom_addr = ioremap(cru_physical_address, cru_length); - if (cru_rom_addr) + if (cru_rom_addr) { + set_memory_x((unsigned long)cru_rom_addr, cru_length); retval = 0; + } } printk(KERN_DEBUG "hpwdt: CRU Base Address: 0x%lx\n", |