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2019-01-14xen: re-name XenDevice to XenLegacyDevice...Paul Durrant1-12/+13
...and xen_backend.h to xen-legacy-backend.h Rather than attempting to convert the existing backend infrastructure to be QOM compliant (which would be hard to do in an incremental fashion), subsequent patches will introduce a completely new framework for Xen PV backends. Hence it is necessary to re-name parts of existing code to avoid name clashes. The re-named 'legacy' infrastructure will be removed once all backends have been ported to the new framework. This patch is purely cosmetic. No functional change. Signed-off-by: Paul Durrant <paul.durrant@citrix.com> Acked-by: Anthony Perard <anthony.perard@citrix.com> Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
2019-01-11qemu/queue.h: leave head structs anonymous unless necessaryPaolo Bonzini1-3/+3
Most list head structs need not be given a name. In most cases the name is given just in case one is going to use QTAILQ_LAST, QTAILQ_PREV or reverse iteration, but this does not apply to lists of other kinds, and even for QTAILQ in practice this is only rarely needed. In addition, we will soon reimplement those macros completely so that they do not need a name for the head struct. So clean up everything, not giving a name except in the rare case where it is necessary. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-12-10pvusb: set max grants only in initialiseJuergen Gross1-6/+6
Don't call xen_be_set_max_grant_refs() in usbback_alloc(), as the gnttabdev pointer won't be initialised yet. The call can easily be moved to usbback_connect(). Signed-off-by: Juergen Gross <jgross@suse.com> Message-id: 20181206133923.30105-1-jgross@suse.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-05-22xen: remove other open-coded use of libxengnttabPaul Durrant1-20/+17
Now that helpers are available in xen_backend, use them throughout all Xen PV backends. Signed-off-by: Paul Durrant <paul.durrant@citrix.com> Acked-by: Anthony Perard <anthony.perard@citrix.com> Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
2018-05-04qobject: Replace qobject_incref/QINCREF qobject_decref/QDECREFMarc-André Lureau1-2/+2
Now that we can safely call QOBJECT() on QObject * as well as its subtypes, we can have macros qobject_ref() / qobject_unref() that work everywhere instead of having to use QINCREF() / QDECREF() for QObject and qobject_incref() / qobject_decref() for its subtypes. The replacement is mechanical, except I broke a long line, and added a cast in monitor_qmp_cleanup_req_queue_locked(). Unlike qobject_decref(), qobject_unref() doesn't accept void *. Note that the new macros evaluate their argument exactly once, thus no need to shout them. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20180419150145.24795-4-marcandre.lureau@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> [Rebased, semantic conflict resolved, commit message improved] Signed-off-by: Markus Armbruster <armbru@redhat.com>
2018-02-09Move include qemu/option.h from qemu-common.h to actual usersMarkus Armbruster1-1/+1
qemu-common.h includes qemu/option.h, but most places that include the former don't actually need the latter. Drop the include, and add it to the places that actually need it. While there, drop superfluous includes of both headers, and separate #include from file comment with a blank line. This cleanup makes the number of objects depending on qemu/option.h drop from 4545 (out of 4743) to 284 in my "build everything" tree. Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20180201111846.21846-20-armbru@redhat.com> [Semantic conflict with commit bdd6a90a9e in block/nvme.c resolved]
2018-02-09Include qapi/qmp/qbool.h exactly where neededMarkus Armbruster1-1/+0
Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20180201111846.21846-15-armbru@redhat.com>
2018-02-09Include qapi/qmp/qdict.h exactly where neededMarkus Armbruster1-0/+1
This cleanup makes the number of objects depending on qapi/qmp/qdict.h drop from 4550 (out of 4743) to 368 in my "build everything" tree. For qapi/qmp/qobject.h, the number drops from 4552 to 390. While there, separate #include from file comment with a blank line. Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20180201111846.21846-13-armbru@redhat.com>
2017-06-20qapi: merge QInt and QFloat in QNumMarc-André Lureau1-1/+0
We would like to use a same QObject type to represent numbers, whether they are int, uint, or floats. Getters will allow some compatibility between the various types if the number fits other representations. Add a few more tests while at it. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20170607163635.17635-7-marcandre.lureau@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> [parse_stats_intervals() simplified a bit, comment in test_visitor_in_int_overflow() tidied up, suppress bogus warnings] Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-05-09qobject: Use simpler QDict/QList scalar insertion macrosEric Blake1-6/+6
We now have macros in place to make it less verbose to add a scalar to QDict and QList, so use them. Patch created mechanically via: spatch --sp-file scripts/coccinelle/qobject.cocci \ --macro-file scripts/cocci-macro-file.h --dir . --in-place then touched up manually to fix a couple of '?:' back to original spacing, as well as avoiding a long line in monitor.c. Signed-off-by: Eric Blake <eblake@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20170427215821.19397-7-eblake@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Alberto Garcia <berto@igalia.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-04-21xen: import ring.h from xenStefano Stabellini1-1/+1
Do not use the ring.h header installed on the system. Instead, import the header into the QEMU codebase. This avoids problems when QEMU is built against a Xen version too old to provide all the ring macros. Signed-off-by: Stefano Stabellini <stefano@aporeto.com> Reviewed-by: Greg Kurz <groug@kaod.org> CC: anthony.perard@citrix.com CC: jgross@suse.com
2016-11-22xen: attach pvusb usb bus to backend qdevJuergen Gross1-13/+10
Attach the usb bus of a new pvusb controller to the qdev associated with the Xen backend. Any device connected to that controller can now specify the bus and port directly via its properties. Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Stefano Stabellini <sstabellini@kernel.org> Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
2016-10-28xen: Rename xen_be_send_notifyEmil Condrea1-3/+3
Prepare xen_be_send_notify to be shared with frontends: * xen_be_send_notify -> xen_pv_send_notify Signed-off-by: Emil Condrea <emilcondrea@gmail.com> Signed-off-by: Stefano Stabellini <sstabellini@kernel.org> Signed-off-by: Quan Xu <xuquan8@huawei.com> Acked-by: Anthony PERARD <anthony.perard@citrix.com>
2016-10-28xen: Rename xen_be_unbind_evtchnEmil Condrea1-1/+1
Prepare xen_be_unbind_evtchn to be shared with frontends: * xen_be_unbind_evtchn -> xen_pv_unbind_evtchn Signed-off-by: Emil Condrea <emilcondrea@gmail.com> Signed-off-by: Stefano Stabellini <sstabellini@kernel.org> Signed-off-by: Quan Xu <xuquan8@huawei.com> Acked-by: Anthony PERARD <anthony.perard@citrix.com>
2016-10-28xen: Rename xen_be_printf to xen_pv_printfEmil Condrea1-19/+19
Prepare xen_be_printf to be used by both backend and frontends: * xen_be_printf -> xen_pv_printf Signed-off-by: Emil Condrea <emilcondrea@gmail.com> Signed-off-by: Stefano Stabellini <sstabellini@kernel.org> Signed-off-by: Quan Xu <xuquan8@huawei.com> Acked-by: Anthony PERARD <anthony.perard@citrix.com>
2016-10-21xen-usb: do not reference PAGE_SIZEStefano Stabellini1-2/+2
PAGE_SIZE is undefined on ARM64. Use XC_PAGE_SIZE instead, which is always 4096 even when page granularity is 64K. For this to actually work with 64K pages, more changes are required. Signed-off-by: Stefano Stabellini <sstabellini@kernel.org> Reviewed-by: Juergen Gross <jgross@suse.com> Release-acked-by: Wei Liu <wei.liu2@citrix.com>
2016-08-03xen: drain submit queue in xen-usb before removing deviceJuergen Gross1-33/+63
When unplugging a device in the Xen pvusb backend drain the submit queue before deallocation of the control structures. Otherwise there will be bogus memory accesses when I/O contracts are finished. Correlated to this issue is the handling of cancel requests: a packet cancelled will still lead to the call of complete, so add a flag to the request indicating it should be just dropped on complete. Signed-off-by: Juergen Gross <jgross@suse.com> Acked-by: Anthony PERARD <anthony.perard@citrix.com> Message-id: 1470140044-16492-3-git-send-email-jgross@suse.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2016-07-12Use #include "..." for our own headers, <...> for othersMarkus Armbruster1-1/+1
Tracked down with an ugly, brittle and probably buggy Perl script. Also move includes converted to <...> up so they get included before ours where that's obviously okay. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Tested-by: Eric Blake <eblake@redhat.com> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-07-12xen-usb: Fix 32bit buildAnthony PERARD1-1/+2
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com> Reviewed-by: Juergen Gross <jgross@suse.com> Message-id: 20160623110829.22671-1-anthony.perard@citrix.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2016-06-16os-posix: include sys/mman.hPaolo Bonzini1-1/+0
qemu/osdep.h checks whether MAP_ANONYMOUS is defined, but this check is bogus without a previous inclusion of sys/mman.h. Include it in sysemu/os-posix.h and remove it from everywhere else. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-06-14xen: Clean up includesPeter Maydell1-4/+1
Clean up includes so that osdep.h is included first and headers which it implies are not included manually. This commit was created with scripts/clean-includes. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Stefano Stabellini <sstabellini@kernel.org> Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
2016-05-23xen: add pvUSB backendJuergen Gross1-0/+1080
Add a backend for para-virtualized USB devices for xen domains. The backend is using host-libusb to forward USB requests from a domain via libusb to the real device(s) passed through. Signed-off-by: Juergen Gross <jgross@suse.com> Acked-by: Anthony PERARD <anthony.perard@citrix.com> Message-id: 1463062421-613-4-git-send-email-jgross@suse.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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