On 16/07/18 17:45, Jan Beulich wrote:
> --- a/xen/include/asm-x86/spec_ctrl.h
> +++ b/xen/include/asm-x86/spec_ctrl.h
> @@ -38,6 +38,8 @@ extern uint8_t opt_xpti;
>  #define OPT_XPTI_DOM0  0x01
>  #define OPT_XPTI_DOMU  0x02
>  
> +bool xpti_pcid_enabled(void);

To be used in the way you want, this needs a stub for the non CONFIG_PV
case, and should probably be in pv/domain.h

~Andrew

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