On 16.12.2021 17:41, Andrew Cooper wrote: > On 16/12/2021 16:38, Jan Beulich wrote: >> On 15.12.2021 23:21, Andrew Cooper wrote: >>> To implement dom0-cpuid= support, the special cases would need extending. >>> However there is already a problem with late hwdom where the special cases >>> override toolstack settings, which is unintended and poor behaviour. >>> >>> Introduce a new init_dom0_cpuid_policy() for the purpose, moving the ITSC >>> and >>> ARCH_CAPS logic. The is_hardware_domain() can be dropped, and for now there >>> is no need to rerun recalculate_cpuid_policy(); this is a relatively >>> expensive >>> operation, and will become more-so over time. >> Would you mind leaving it there in a commented out form, hinting at when >> it may need re-enabling? > > Leave what? The recalculate_cpuid_policy()? That comes back in later > in the series.
I've meanwhile spotted it, yes. Let's hope its conditional invocation there makes clear enough that with certain other changes it may also be needed. Jan
