[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH 2/2] x86/vMCE: save/restore MCA capabilities
Jan Beulich wrote: >>>> On 05.03.12 at 21:19, "Liu, Jinsong" <jinsong.liu@xxxxxxxxx> wrote: >> Another question is, why in the patch mcg_cap defined as per vcpu >> while others (mcg_ctl/ mcg_status/ mci_ctl) defined as per domain? >> Semantically it looks some weird anyway. > > That question goes back to you (as a company), who wrote the > original code: Why were these made per-domain in the first place > when they're really per-vCPU? All I did here is make per-vCPU > what I needed to touch anyway for save/restore (in order to not > carry over the same mistake into the save/restore definitions and > logic). > > Jan Per my understanding, the original design may think that per vcpu mca msr is not necessary: vcpu are not 1:1 w/ pcpu, and multi-copies of same error info (if per vcpu) is pointless, so it designed as per domain, as long as it successfully emulated mca msr for guest. Thanks, Jinsong _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
|
Lists.xenproject.org is hosted with RackSpace, monitoring our |