[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH v2 10/12] xen/iommu: smmu: Check for duplicate stream IDs when registering master devices
On 27/01/15 16:30, Stefano Stabellini wrote: > On Fri, 16 Jan 2015, Julien Grall wrote: >> From: Andreas Herrmann <andreas.herrmann@xxxxxxxxxxx> >> >> If DT information lists one stream ID twice for the master devices of >> an SMMU this can cause a multi match when stream ID matching is used. >> For stream ID indexing this might trigger an overwrite of an S2CR that >> is already in use. >> >> So better check for duplicates when DT information is parsed. >> >> Taken from the linux ML: >> http://lists.infradead.org/pipermail/linux-arm-kernel/2014-January/226099.html >> >> Cc: Andreas Herrmann <herrmann.der.user@xxxxxxxxxxxxxx> >> Signed-off-by: Andreas Herrmann <andreas.herrmann@xxxxxxxxxxx> >> Signed-off-by: Julien Grall <julien.grall@xxxxxxxxxx> > > Why didn't you just take a more recent version of the Linux smmu driver? The SMMU driver very is recent (see commit in the previous patch)... Just this patch has never reached upstream. Regards, -- Julien Grall _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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