[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH] VMX: Eliminate cr3 store/load vmexit when UG enabled
>>> On 29.10.13 at 02:02, "Zhang, Yang Z" <yang.z.zhang@xxxxxxxxx> wrote: > Jan Beulich wrote on 2013-10-28: >>>>> On 24.10.13 at 06:41, "Zhang, Yang Z" <yang.z.zhang@xxxxxxxxx> wrote: >>> Andrew Cooper wrote on 2013-10-23: >>>> On 23/10/13 08:39, Yang Zhang wrote: >>>>> From: Yang Zhang <yang.z.zhang@xxxxxxxxx> >>>>> >>>>> With the feature of unrestricted guest, there should no vmexit be >>>>> triggered when guest accesses the cr3 in non-paging mode. >>>>> >>>>> Signed-off-by: Yang Zhang <yang.z.zhang@xxxxxxxxx> >>>> >>>> You English here confused me for a bit. I presume you mean "Xen >>>> should not cause vmexits for cr3 accesses in unrestricted guests", >>>> whereas the current meaning implies that hardware wont generate a >>>> vmexit for cr3 accesses for unrestricted guests (which is not correct >>>> according to the SDM). >>>> >>> >>> Apology for my poor English. Yes, your understanding is right. >> >> So assuming we'll get an ack from one of the VMX maintainers, should >> this then be committed with the suggested change to the description? > > Sure. If no need to revise the current patch, please help to commit it with > the comments Paolo suggested. Andrew you mean? Jan _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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