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    Subject[RFC v1 20/26] x86/tdx: Introduce INTEL_TDX_GUEST config option
    Date
    Add INTEL_TDX_GUEST config option to selectively compile
    TDX guest support.

    Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
    Reviewed-by: Andi Kleen <ak@linux.intel.com>
    ---
    arch/x86/Kconfig | 15 +++++++++++++++
    1 file changed, 15 insertions(+)

    diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
    index 8fe91114bfee..0374d9f262a5 100644
    --- a/arch/x86/Kconfig
    +++ b/arch/x86/Kconfig
    @@ -868,6 +868,21 @@ config ACRN_GUEST
    IOT with small footprint and real-time features. More details can be
    found in https://projectacrn.org/.

    +config INTEL_TDX_GUEST
    + bool "Intel Trusted Domain eXtensions Guest Support"
    + depends on X86_64 && CPU_SUP_INTEL && PARAVIRT
    + depends on SECURITY
    + select PARAVIRT_XL
    + select X86_X2APIC
    + select SECURITY_LOCKDOWN_LSM
    + help
    + Provide support for running in a trusted domain on Intel processors
    + equipped with Trusted Domain eXtenstions. TDX is an new Intel
    + technology that extends VMX and Memory Encryption with a new kind of
    + virtual machine guest called Trust Domain (TD). A TD is designed to
    + run in a CPU mode that protects the confidentiality of TD memory
    + contents and the TD’s CPU state from other software, including VMM.
    +
    endif #HYPERVISOR_GUEST

    source "arch/x86/Kconfig.cpu"
    --
    2.25.1
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