On 01/12/2018 01:01 PM, Andrew Cooper wrote:
>
> + if ( boot_cpu_has(X86_FEATURE_IBRSB) )
> + {
> + /*
> + * Even if we've chosen to not have IBRS set in Xen context, we still
> + * need the IBRS entry/exit logic to virtualise IBRS support for
> + * guests.
> + */
> + if ( ibrs )
> + setup_force_cpu_cap(X86_FEATURE_XEN_IBRS_SET);
> + else
> + setup_force_cpu_cap(X86_FEATURE_XEN_IBRS_CLEAR);
> + }
>
Are you going to add support for Intel's "Enhanced IBRS" (I think that's
what they call the "always on" mode")?
-boris
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel
