1 files changed, 30 insertions, 0 deletions

diff --git a/security/Kconfig b/security/Kconfig
index d23c839038f0..edc7cbdc012a 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 EXPERIMENTAL && X86 && DMAR && ACPI
+        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 sysem 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 conigured 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.
+
 source security/selinux/Kconfig
 source security/smack/Kconfig
 source security/tomoyo/Kconfig