[PATCH v8 03/15] x86: Secure Launch Kconfig

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Initial bits to bring in Secure Launch functionality. Add Kconfig
options for compiling in/out the Secure Launch code.

Signed-off-by: Ross Philipson <ross.philipson@xxxxxxxxxx>
---
 arch/x86/Kconfig | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 5edec175b9bf..d96d75f6f1a9 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -2071,6 +2071,18 @@ config EFI_RUNTIME_MAP
 
 	  See also Documentation/ABI/testing/sysfs-firmware-efi-runtime-map.
 
+config SECURE_LAUNCH
+	bool "Secure Launch support"
+	default n
+	depends on X86_64 && X86_X2APIC
+	help
+	   The Secure Launch feature allows a kernel to be loaded
+	   directly through an Intel TXT measured launch. Intel TXT
+	   establishes a Dynamic Root of Trust for Measurement (DRTM)
+	   where the CPU measures the kernel image. This feature then
+	   continues the measurement chain over kernel configuration
+	   information and init images.
+
 source "kernel/Kconfig.hz"
 
 config ARCH_SUPPORTS_KEXEC
-- 
2.39.3


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