[PATCH v5 03/12] x86: Secure Launch Kconfig
From: Ross Philipson <hidden>
Date: 2022-02-18 15:58:58
Also in:
kexec, linux-crypto, linux-doc, linux-iommu, lkml
Subsystem:
the rest, x86 architecture (32-bit and 64-bit) · Maintainers:
Linus Torvalds, Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen
Initial bits to bring in Secure Launch functionality. Add Kconfig options for compiling in/out the Secure Launch code. Signed-off-by: Ross Philipson <redacted> --- arch/x86/Kconfig | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 9f5bd41..3f69aeb 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig@@ -1983,6 +1983,40 @@ config EFI_MIXED If unsure, say N. +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. + +config SECURE_LAUNCH_ALT_DLME_AUTHORITY + bool "Secure Launch Alternate DLME Authority PCR" + default n + depends on SECURE_LAUNCH + help + As the DLME environment, Secure Launch by default measures + the configuration information as the DLME Authority into + PCR18. This feature allows separating these measurements + into the TCG DRTM specification PCR (PCR.DLME_AUTHORITY), + PCR19. + +config SECURE_LAUNCH_ALT_DLME_DETAIL + bool "Secure Launch Alternate DLME Detail PCR" + default n + depends on SECURE_LAUNCH + help + As the DLME environment, Secure Launch by default measures + the image data like any external initrd as a DRTM Detail + into PCR17. This feature allows separating these + measurements into the Secure Launch's Detail PCR + (PCR.DLME_DETAIL), PCR20. + source "kernel/Kconfig.hz" config KEXEC
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1.8.3.1