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

Mowka, Mateusz
2025-06-18T08:33:35Z

On 21-Apr-25 6:26 PM, 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@oracle.com>

Acked-by: Mateusz Mowka <mateusz.mowka@linux.intel.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