path: root/security
diff options
authorLinus Torvalds <torvalds@linux-foundation.org>2009-09-15 09:19:20 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-09-15 09:19:20 -0700
commit1aaf2e59135fd67321f47c11c64a54aac27014e9 (patch)
tree633ffa4db3ac6e8d566cba549510561ffd61d8f4 /security
parent66a4fe0cb80a9fde8cb173289afb863fd279466a (diff)
parent936e894a976dd3b0f07f1f6f43c17b77b7e6146d (diff)
Merge branch 'x86-txt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-txt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, intel_txt: clean up the impact on generic code, unbreak non-x86 x86, intel_txt: Handle ACPI_SLEEP without X86_TRAMPOLINE x86, intel_txt: Fix typos in Kconfig help x86, intel_txt: Factor out the code for S3 setup x86, intel_txt: tboot.c needs <asm/fixmap.h> intel_txt: Force IOMMU on for Intel TXT launch x86, intel_txt: Intel TXT Sx shutdown support x86, intel_txt: Intel TXT reboot/halt shutdown support x86, intel_txt: Intel TXT boot support
Diffstat (limited to 'security')
1 files changed, 30 insertions, 0 deletions
diff --git a/security/Kconfig b/security/Kconfig
index 4c865345caa..fb363cd81cf 100644
--- a/security/Kconfig
+++ b/security/Kconfig
@@ -113,6 +113,36 @@ config SECURITY_ROOTPLUG
If you are unsure how to answer this question, answer N.
+config INTEL_TXT
+ bool "Enable Intel(R) Trusted Execution Technology (Intel(R) TXT)"
+ depends on HAVE_INTEL_TXT
+ help
+ This option enables support for booting the kernel with the
+ Trusted Boot (tboot) module. This will utilize
+ Intel(R) Trusted Execution Technology to perform a measured launch
+ of the kernel. If the system does not support Intel(R) TXT, this
+ will have no effect.
+ Intel TXT will provide higher assurance of system configuration and
+ initial state as well as data reset protection. This is used to
+ create a robust initial kernel measurement and verification, which
+ helps to ensure that kernel security mechanisms are functioning
+ correctly. This level of protection requires a root of trust outside
+ of the kernel itself.
+ Intel TXT also helps solve real end user concerns about having
+ confidence that their hardware is running the VMM or kernel that
+ it was configured with, especially since they may be responsible for
+ providing such assurances to VMs and services running on it.
+ See <http://www.intel.com/technology/security/> for more information
+ about Intel(R) TXT.
+ See <http://tboot.sourceforge.net> for more information about tboot.
+ See Documentation/intel_txt.txt for a description of how to enable
+ Intel TXT support in a kernel boot.
+ If you are unsure as to whether this is required, answer N.
int "Low address space for LSM to protect from user allocation"