On 01.12.2025 17:05, Andrew Cooper wrote:
> A XenServer feature in the process of being upstreamed is to be able to
> re-caculate the guest CPU Policies at runtime, e.g. after a microcode load
> and/or livepatch to expose new functionality.  Right now, upstream Xen only
> rescans the Raw CPU Policy on microcode load.
> 
> One complication with recalculating the guest policies is that BTC_NO is
> handled differently to other $FOO_NO bits, by using __set_bit() rather than
> setup_force_cpu_cap().
> 
> For consistency, switch it to using setup_force_cpu_cap().  This doesn't
> matter for upstream Xen right now, but it will ease upstream the feature.
> 
> Signed-off-by: Andrew Cooper <[email protected]>

Acked-by: Jan Beulich <[email protected]>


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