[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [RFC 03/22] xen/arm: gic-v3: Fix the distributor region to 64kB
On 05/06/15 14:29, Ian Campbell wrote: > On Fri, 2015-06-05 at 13:56 +0100, Julien Grall wrote: >> On 05/06/15 13:14, Ian Campbell wrote: >>> On Fri, 2015-05-08 at 14:29 +0100, Julien Grall wrote: >>>> On GICv3, the default size of the distributor region is 64kB. This >>>> region can be extended >>> >>> But never shrunk, correct? Would a sanity check during parsing be >>> worthwhile? > >> Yes. See 5.3 in PRD03-GENC-010745 24.0. I can add a reference to it. > > Good, thanks. > >> Well, we trust the device tree value in many place in Xen. If the DT >> provided by the platform is wrong, Xen won't be the only software in >> trouble. > > We do warn about other similar things though, as a helpful hint to our > users. (dodgy timer interrupt stuff springs to mind) We don't do any check size in GIC drivers. If we add this one, I would prefer to add all the others one too. But in a separate driver. Regards, -- Julien Grall _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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