[Pull Request] [Natty] x86: clear XD_DISABLED flag on Intel

Kees Cook kees at ubuntu.com
Tue Nov 16 19:40:10 GMT 2010


Hi,

This is from a branch of x86 tip:
http://git.kernel.org/?p=linux/kernel/git/x86/linux-2.6-tip.git;a=shortlog;h=refs/heads/x86/cpu

I'd like to get it into Ubuntu now to help with testing so it can move more
quickly into Linus's tree upstream.


The following changes since commit e7cd9edbade47def723bd06dd082afe20427e26a:

  UBUNTU: updateconfigs following rebase to v2.6.37-rc2 (2010-11-16 13:18:04 +0000)

are available in the git repository at:
  git://kernel.ubuntu.com/kees/ubuntu-natty.git master

Kees Cook (4):
      x86, cpu: Rename verify_cpu_64.S to verify_cpu.S
      x86, cpu: Clear XD_DISABLED flag on Intel to regain NX
      x86, cpu: Call verify_cpu during 32bit CPU startup
      x86, cpu: Only CPU features determine NX capabilities

 arch/x86/boot/compressed/head_64.S                |    2 +-
 arch/x86/kernel/head_32.S                         |    6 +++
 arch/x86/kernel/trampoline_64.S                   |    2 +-
 arch/x86/kernel/{verify_cpu_64.S => verify_cpu.S} |   49 +++++++++++++++++---
 arch/x86/mm/setup_nx.c                            |    2 +-
 5 files changed, 50 insertions(+), 11 deletions(-)
 rename arch/x86/kernel/{verify_cpu_64.S => verify_cpu.S} (65%)


Thanks,

-Kees

-- 
Kees Cook
Ubuntu Security Team



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