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2009-09-01x86, intel_txt: clean up the impact on generic code, unbreak non-x86Shane Wang
Move tboot.h from asm to linux to fix the build errors of intel_txt patch on non-X86 platforms. Remove the tboot code from generic code init/main.c and kernel/cpu.c. Signed-off-by: Shane Wang <shane.wang@intel.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2009-08-17x86, intel_txt: Handle ACPI_SLEEP without X86_TRAMPOLINEH. Peter Anvin
On 32 bits, we can have CONFIG_ACPI_SLEEP set without implying CONFIG_X86_TRAMPOLINE. In that case, we simply do not need to mark the trampoline as a MAC region. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Cc: Shane Wang <shane.wang@intel.com> Cc: Joseph Cihula <joseph.cihula@intel.com>
2009-08-14x86, intel_txt: Factor out the code for S3 setupH. Peter Anvin
S3 sleep requires special setup in tboot. However, the data structures needed to do such setup are only available if CONFIG_ACPI_SLEEP is enabled. Abstract them out as much as possible, so we can have a single tboot_setup_sleep() which either is a proper implementation or a stub which simply calls BUG(). Signed-off-by: H. Peter Anvin <hpa@zytor.com> Acked-by: Shane Wang <shane.wang@intel.com> Cc: Joseph Cihula <joseph.cihula@intel.com>
2009-08-12x86, intel_txt: tboot.c needs <asm/fixmap.h>H. Peter Anvin
arch/x86/kernel/tboot.c needs <asm/fixmap.h>. In most configurations that ends up getting implicitly included, but not in all, causing build failures in some configurations. Reported-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: H. Peter Anvin <hpa@zytor.com> Cc: Joseph Cihula <joseph.cihula@intel.com> Cc: Shane Wang <shane.wang@intel.com>
2009-07-21x86, intel_txt: Intel TXT boot supportJoseph Cihula
This patch adds kernel configuration and boot support for Intel Trusted Execution Technology (Intel TXT). Intel's technology for safer computing, Intel Trusted Execution Technology (Intel TXT), defines platform-level enhancements that provide the building blocks for creating trusted platforms. Intel TXT was formerly known by the code name LaGrande Technology (LT). Intel TXT in Brief: o Provides dynamic root of trust for measurement (DRTM) o Data protection in case of improper shutdown o Measurement and verification of launched environment Intel TXT is part of the vPro(TM) brand and is also available some non-vPro systems. It is currently available on desktop systems based on the Q35, X38, Q45, and Q43 Express chipsets (e.g. Dell Optiplex 755, HP dc7800, etc.) and mobile systems based on the GM45, PM45, and GS45 Express chipsets. For more information, see http://www.intel.com/technology/security/. This site also has a link to the Intel TXT MLE Developers Manual, which has been updated for the new released platforms. A much more complete description of how these patches support TXT, how to configure a system for it, etc. is in the Documentation/intel_txt.txt file in this patch. This patch provides the TXT support routines for complete functionality, documentation for TXT support and for the changes to the boot_params structure, and boot detection of a TXT launch. Attempts to shutdown (reboot, Sx) the system will result in platform resets; subsequent patches will support these shutdown modes properly. Documentation/intel_txt.txt | 210 +++++++++++++++++++++ Documentation/x86/zero-page.txt | 1 arch/x86/include/asm/bootparam.h | 3 arch/x86/include/asm/fixmap.h | 3 arch/x86/include/asm/tboot.h | 197 ++++++++++++++++++++ arch/x86/kernel/Makefile | 1 arch/x86/kernel/setup.c | 4 arch/x86/kernel/tboot.c | 379 +++++++++++++++++++++++++++++++++++++++ security/Kconfig | 30 +++ 9 files changed, 827 insertions(+), 1 deletion(-) Signed-off-by: Joseph Cihula <joseph.cihula@intel.com> Signed-off-by: Shane Wang <shane.wang@intel.com> Signed-off-by: Gang Wei <gang.wei@intel.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>