[PATCH v14 02/19] x86: Secure Launch Kconfig

Ross Philipson
2025-04-21T16:34:40Z

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 4b9f378e05f6..badde1e9742e 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -2001,6 +2001,17 @@ 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_TIS && TCG_CRB && 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