[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [v6][PATCH 2/2] xen:vtd: missing RMRR mapping while share EPT
>>> On 30.07.14 at 12:40, <tiejun.chen@xxxxxxxxx> wrote: > On 2014/7/30 18:25, Jan Beulich wrote: >>>>> On 30.07.14 at 11:40, <tiejun.chen@xxxxxxxxx> wrote: >>> From what those codes mean, it just return regardless whether they >>> really conflict. And this is just a good assumption, so if I'm >>> understanding this properly, actually our patches do this thing >>> precisely because we further check if this assumption is true, then take >>> necessary actions. >> >> Except that the pointed out check prevents the code you modify >> from being reached at all, i.e. as long as that check is there it >> doesn't matter (for any passed through USB device) what action >> rmrr_identity_mapping() takes. >> > > Sorry, what do you mean? > > From my point of view these two patches should be better than drop > simply RMRR for any PT USB device no matter if its really necessary. I mean that for USB devices your patches change nothing without said check also getting removed. Jan _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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