[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH] iommu: Elaborate the usage of RMRR specification on the command line.
On Wed, Feb 22, 2017 at 01:52:02AM -0700, Jan Beulich wrote: > >>> On 21.02.17 at 21:42, <venu.busireddy@xxxxxxxxxx> wrote: > > --- a/docs/misc/xen-command-line.markdown > > +++ b/docs/misc/xen-command-line.markdown > > @@ -1406,6 +1406,15 @@ If segment of the first device is not specified, > > segment zero will be used. > > If other segments are not specified, first device segment will be used. > > If a segment is specified for other than the first device and it does not > > match > > the one specified for the first one, an error will be reported. > > + > > +'start' and 'end' values are page numbers (not full physical addresses). > > +If the values are not preceded by "0x", they are treated as decimal. > > Actually I think we should fix the code. I can't see how decimal > numbers can be useful here, and it is actively confusing with ... Fixed. I will post v2 for review. > > +Usage example: If there are two devices 0:0:1d.0 and 0:0:1a.0 that require > > +pages 0xd5d45 and 0xd5d46 to be reserved respectively, use: > > + > > +rmrr=0xd5d45=0:0:1d.0;0xd5d46=0:0:1a.0 > > ... the PCI device being specified without 0x prefixes. > > Also can one of the two parts of the example be a range, please? This too is done. v2 will be posted for review. Venu _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx https://lists.xen.org/xen-devel
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