Re: [Xen-devel] [PATCH v1 2/2] microcode: reject late ucode loading if any core is parked

2019-11-21 Thread Jan Beulich
On 21.11.2019 12:51, Chao Gao wrote: > On Thu, Nov 21, 2019 at 11:21:13AM +0100, Jan Beulich wrote: >> On 21.11.2019 00:05, Chao Gao wrote: >>> If a core with all of its thread being parked, late ucode loading >>> which currently only loads ucode on online threads would lead to >>> differing ucode

Re: [Xen-devel] [PATCH v1 2/2] microcode: reject late ucode loading if any core is parked

2019-11-21 Thread Jürgen Groß
On 21.11.19 11:21, Jan Beulich wrote: On 21.11.2019 00:05, Chao Gao wrote: If a core with all of its thread being parked, late ucode loading which currently only loads ucode on online threads would lead to differing ucode revisions in the system. In general, keeping ucode revision consistent

Re: [Xen-devel] [PATCH v1 2/2] microcode: reject late ucode loading if any core is parked

2019-11-21 Thread Chao Gao
On Thu, Nov 21, 2019 at 11:21:13AM +0100, Jan Beulich wrote: >On 21.11.2019 00:05, Chao Gao wrote: >> If a core with all of its thread being parked, late ucode loading >> which currently only loads ucode on online threads would lead to >> differing ucode revisions in the system. In general,

Re: [Xen-devel] [PATCH v1 2/2] microcode: reject late ucode loading if any core is parked

2019-11-21 Thread Jan Beulich
On 21.11.2019 00:05, Chao Gao wrote: > If a core with all of its thread being parked, late ucode loading > which currently only loads ucode on online threads would lead to > differing ucode revisions in the system. In general, keeping ucode > revision consistent would be less error-prone. To this

[Xen-devel] [PATCH v1 2/2] microcode: reject late ucode loading if any core is parked

2019-11-20 Thread Chao Gao
If a core with all of its thread being parked, late ucode loading which currently only loads ucode on online threads would lead to differing ucode revisions in the system. In general, keeping ucode revision consistent would be less error-prone. To this end, if there is a parked thread doesn't have