shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-05-31 16:26:41 +09:00
Code Issues Packages Projects Releases Wiki Activity

watchdog: hpwdt: Changes to handle NX secure bit in 32bit path

Browse Source 
commit e67d668e14 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>
This commit is contained in:
Mingarelli, Thomas
2011-11-07 10:59:00 +01:00
committed by Greg Kroah-Hartman
parent 04a763aed3
commit 118282df5d
1 changed files with 4 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/watchdog/hpwdt.c
View File

@@ -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",