On 9/24/20 7:58 AM, Ross Philipson wrote: > 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> Hi, from Documentation/process/coding-style.rst: Lines under a ``config`` definition are indented with one tab, while help text is indented an additional two spaces. > --- > arch/x86/Kconfig | 36 ++++++++++++++++++++++++++++++++++++ > 1 file changed, 36 insertions(+) > > diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig > index 7101ac6..8957981 100644 > --- a/arch/x86/Kconfig > +++ b/arch/x86/Kconfig > @@ -1968,6 +1968,42 @@ config EFI_MIXED > > If unsure, say N. > > +config SECURE_LAUNCH > + bool "Secure Launch support" > + default n > + depends on X86_64 > + 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. > + > +choice > + prompt "Select Secure Launch Algorithm for TPM2" > + depends on SECURE_LAUNCH > + > +config SECURE_LAUNCH_SHA1 > + bool "Secure Launch TPM1 SHA1" > + help > + When using Secure Launch and TPM1 is present, use SHA1 hash > + algorithm for measurements. > + > +config SECURE_LAUNCH_SHA256 > + bool "Secure Launch TPM2 SHA256" > + help > + When using Secure Launch and TPM2 is present, use SHA256 hash > + algorithm for measurements. > + > +config SECURE_LAUNCH_SHA512 > + bool "Secure Launch TPM2 SHA512" > + help > + When using Secure Launch and TPM2 is present, use SHA512 hash > + algorithm for measurements. > + > +endchoice > + thanks. -- ~Randy
