[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH v4] x86: add p2m_mmio_write_dm
Hi, At 17:01 +0800 on 04 Dec (1417708878), Yu, Zhang wrote: > I just noticed that in __hvm_copy()/__hvm_clear(), the grant types are > handled before the p2m_ram_ro - will return HVMCOPY_unhandleable. So if > p2m_is_discard_write() is supposed to replace the handling of > p2m_ram_ro, handling of p2m_grant_map_ro will still return > HVMCOPY_unhandleable, before the p2m_is_discard_write() predicate. > Even we move the testing of p2m_is_discard_write() before the handling > of grant types, it seems not quite clean. > By "over-strict in their failure to handle grant types.", do you also > mean this? Yes, that's the sort of thing I meant. I'll try to write a patch for that later today or next week -- in the meantime I think you should ignore it. :) An unrelated thought: when you send your next version can you send it as a two-patch series, where the first patch does the p2m_is_discard_write() changes and the second adds your new type? Cheers, Tim. _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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