[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCHv6 00/11] Xen: FIFO-based event channel ABI
Acked-by: Keir Fraser <keir@xxxxxxx> On 08/10/2013 13:40, "David Vrabel" <david.vrabel@xxxxxxxxxx> wrote: > This is a complete implementation of the hypervisor and xl toolstack > parts of the FIFO-based event channel ABI described in this design > document: > > http://xenbits.xen.org/people/dvrabel/event-channels-F.pdf > > The v6 version of the Linux patch series will be posted shortly and > can be found in the orochi-v6 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 v6: > > - fixed unmap_guest_page(). > - fixed flask build. > > 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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