kernel-ark/arch
Suresh Siddha 502f660466 x86, cpa: Fix kernel text RO checks in static_protection()
Steven Rostedt reported that we are unconditionally making the
kernel text mapping as read-only. i.e., if someone does cpa() to
the kernel text area for setting/clearing any page table
attribute, we unconditionally clear the read-write attribute for
the kernel text mapping that is set at compile time.

We should delay (to forbid the write attribute) and enforce only
after the kernel has mapped the text as read-only.

Reported-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Tested-by: Steven Rostedt <rostedt@goodmis.org>
LKML-Reference: <20091029024820.996634347@sbs-t61.sc.intel.com>
[ marked kernel_set_to_readonly as __read_mostly ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-11-02 17:16:35 +01:00
..
alpha alpha: Fix duplicate <asm/thread_info.h> include 2009-09-27 14:46:05 -07:00
arm headers: remove sched.h from interrupt.h 2009-10-11 11:20:58 -07:00
avr32 Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-next 2009-09-23 15:37:02 -07:00
blackfin headers: remove sched.h from interrupt.h 2009-10-11 11:20:58 -07:00
cris const: constify remaining file_operations 2009-10-01 16:11:11 -07:00
frv FRV: Flash mappings for the MB93090-MB00 motherboard 2009-09-24 17:18:38 -07:00
h8300 h8300: Cleanup linker script using new linker script macros. 2009-09-24 17:16:22 -07:00
ia64 const: mark struct vm_struct_operations 2009-09-27 11:39:25 -07:00
m32r headers: remove sched.h from interrupt.h 2009-10-11 11:20:58 -07:00
m68k revert "m68k: convert to asm-generic/hardirq.h" 2009-10-01 16:11:11 -07:00
m68knommu m68knommu: fix rename of pt_regs offset defines breakage 2009-09-30 10:06:07 +10:00
microblaze microblaze: Clear sticky FSR register after saving it to func parametr 2009-10-05 11:37:47 +02:00
mips MIPS: Avoid spurious make includecheck message 2009-09-30 21:47:02 +02:00
mn10300 mn10300: fix kernel build failures when using gcc-4.x 2009-10-01 16:11:12 -07:00
parisc parisc: Fix linker script breakage. 2009-09-28 00:25:07 -04:00
powerpc const: constify remaining file_operations 2009-10-01 16:11:11 -07:00
s390 [S390] Add EX_TABLE for addressing exception in usercopy functions. 2009-10-06 10:35:10 +02:00
score Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-next 2009-09-23 15:37:02 -07:00
sh sh: Don't allocate smaller sized mappings on every iteration 2009-10-09 11:26:35 +09:00
sparc Merge branch 'sparc-perf-events-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-10-08 12:05:50 -07:00
um headers: remove sched.h from interrupt.h 2009-10-11 11:20:58 -07:00
x86 x86, cpa: Fix kernel text RO checks in static_protection() 2009-11-02 17:16:35 +01:00
xtensa headers: remove sched.h from interrupt.h 2009-10-11 11:20:58 -07:00
.gitignore
Kconfig oprofile: fix oprofile regression: select RING_BUFFER_ALLOW_SWAP 2009-09-17 15:53:42 -04:00