2024-05-31 01:32:23

by Ross Philipson

[permalink] [raw]
Subject: [PATCH v9 03/19] x86: Secure Launch Kconfig

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

Signed-off-by: Ross Philipson <[email protected]>
---
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