[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCHv5 0/11] Xen: FIFO-based event channel ABI
http://xenbits.xen.org/people/dvrabel/event-channels-F.pdf The v5 version of the Linux patch series will be posted shortly and can be found in the orochi-v5 branch of: git://xenbits.xen.org/people/dvrabel/linux.git Patch 1-4 do some preparatory work for supporting alternate ABIs. Patch 5 expands the number of evtchn objects a domain may have by changing how they are allocated. Patch 6 adds the public ABI. Patch 7 adds the EVTCHNOP_set_priority implementation. This will return -ENOSYS for ABIs that do not support priority. Patch 8* adds the FIFO-based ABI implementation. Patch 9*-10 adds the DOMCTL_set_max_evtchn implementation and adds a function to libxc. This will also work with the 2-level ABI. Patch 11* add the max_event_channels configuration option to xl and libxl bits needed for this. * Reviewed-by pending. Changes in v5: - xl config option renamed to 'max_event_channels'. - Default set by libxl is 1023. - Fix flask (I think). - Use domain_page_map_to_mfn() when unmapping guest pages. - Coding style (unsigned -> unsigned int throughout, x == NULL -> !x). Changes in v4: - Updates for Draft F of the design. - DOMCTL_set_max_evtchn replaces EVTCHNOP_set_limit. - Hypervisor defaults to unlimited event channels for for DomU. - Optimized memory allocation for struct evtchn's when fewer than 128 are required (see patch 5). - Added event_channels option to the xl domain configuration file and plumbed this through libxl_build_info. Defaults to 127. Changes in v3: - Updates for Draft E of the design. - Store priority in struct evtchn. - Implement set_priority with generic code + hook. - Implement set_limit and add libxc function. - Add ABI specific output to 'e' debug key. Changes in v2: - Updates for Draft D of the design. - 130,000+ event channels are now supported. - event_port.c -> event_2l.c and only contains 2l functions. - Addresses various review comments - int -> unsigned in lots of places - use write_atomic() to set HEAD - removed MAX_EVTCHNS - evtchn_ops are const. - Pack struct evtchns better to reduce memory needed. _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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