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From: Ross Philipson <ross.philipson@oracle.com>
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Subject: [PATCH v9 03/19] x86: Secure Launch Kconfig
Date: Thu, 30 May 2024 18:03:15 -0700
Message-Id: <20240531010331.134441-4-ross.philipson@oracle.com>
In-Reply-To: <20240531010331.134441-1-ross.philipson@oracle.com>
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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@oracle.com>
---
 arch/x86/Kconfig | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index bc47bc9841ff..ee8e0cbc9a3e 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -2067,6 +2067,17 @@ config EFI_RUNTIME_MAP
 
 	  See also Documentation/ABI/testing/sysfs-firmware-efi-runtime-map.
 
+config SECURE_LAUNCH
+	bool "Secure Launch support"
+	depends on X86_64 && X86_X2APIC && TCG_TPM && CRYPTO_LIB_SHA1 && CRYPTO_LIB_SHA256
+	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