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2017-09-04qapi: Mechanically convert FOO_lookup[...] to FOO_str(...)Markus Armbruster1-2/+2
Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <1503564371-26090-14-git-send-email-armbru@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2017-08-01char: don't exit on hmp 'chardev-add help'Anton Nefedov1-1/+1
qemu_chr_new_from_opts() is used from both vl.c and hmp, and it is quite confusing to see qemu suddenly exit after receiving a help option in hmp. Do exit(0) from vl.c instead. Signed-off-by: Anton Nefedov <anton.nefedov@virtuozzo.com> Message-Id: <1500977081-120929-1-git-send-email-anton.nefedov@virtuozzo.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-07-14hmp: add hmp analogue for qmp-chardev-changeAnton Nefedov1-1/+1
Signed-off-by: Anton Nefedov <anton.nefedov@virtuozzo.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <1499342940-56739-11-git-send-email-anton.nefedov@virtuozzo.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-07-14char: chardevice hotswapAnton Nefedov1-0/+83
This patch adds a possibility to change a char device without a frontend removal. Ideally, it would have to happen transparently to a frontend, i.e. frontend would continue its regular operation. However, backends are not stateless and are set up by the frontends via qemu_chr_fe_<> functions, and it's not (generally) possible to replay that setup entirely in a backend code, as different chardevs respond to the setup calls differently, so do frontends work differently basing on those setup responses. Moreover, some frontend can generally get and save the backend pointer (qemu_chr_fe_get_driver()), and it will become invalid after backend change. So, a frontend which would like to support chardev hotswap has to register a "backend change" handler, and redo its backend setup there. Signed-off-by: Anton Nefedov <anton.nefedov@virtuozzo.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-Id: <1499342940-56739-4-git-send-email-anton.nefedov@virtuozzo.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-07-14char: move QemuOpts->ChardevBackend translation to a separate funcAnton Nefedov1-30/+51
parse function will be used by the following patch Signed-off-by: Anton Nefedov <anton.nefedov@virtuozzo.com> Message-Id: <1499342940-56739-2-git-send-email-anton.nefedov@virtuozzo.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-29Add chardev-send-break monitor commandStefan Fritsch1-0/+12
Sending a break on a serial console can be useful for debugging the guest. But not all chardev backends support sending breaks (only telnet and mux do). The chardev-send-break command allows to send a break even if using other backends. Signed-off-by: Stefan Fritsch <sf@sfritsch.de> Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20170611074817.13621-1-sf@sfritsch.de> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Use 'send a break' in all 3 pieces of text as suggested by eblake
2017-06-08chardev: don't use alias names in parse_compat()Marc-André Lureau1-2/+2
"parport" is considered "old" since commit 88a946d32d, when "parallel" was added. Similarly for "tty" in commit d59044ef74d. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2017-06-02char: rename functions that are not part of feMarc-André Lureau1-8/+7
There is no clear reason to have those functions associated with frontend. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2017-06-02char: move CharBackend handling in char-fe unitMarc-André Lureau1-342/+1
Move all the frontend struct and methods to a seperate unit. This avoids accidentally mixing backend and frontend calls, and helps with readabilty. Make qemu_chr_replay() a macro shared by both char and char-fe. Export qemu_chr_write(), and use a macro for qemu_chr_write_all() (nb: yes, CharBackend is for char frontend :) Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2017-06-02char: generalize qemu_chr_write_all()Marc-André Lureau1-42/+28
qemu_chr_fe_write() is similar to qemu_chr_write_all(): the later write all with a chardev backend. Make qemu_chr_write() and qemu_chr_fe_write_buffer() take an 'all' argument. If false, handle 'partial' write the way qemu_chr_fe_write() use to, and call qemu_chr_write() from qemu_chr_fe_write(). Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2017-06-02chardev: move headers to include/chardevMarc-André Lureau1-5/+5
So they are all in one place. The following patch will move serial & parallel declarations to the respective headers. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2017-06-02char: cast ARRAY_SIZE() as signed to silent warning on empty arrayPhilippe Mathieu-Daudé1-2/+2
chardev/char.c: In function 'chardev_name_foreach': chardev/char.c:546:19: error: comparison of unsigned expression < 0 is always false [-Werror=type-limits] for (i = 0; i < ARRAY_SIZE(chardev_alias_table); i++) { ^ Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20170530120919.8874-1-f4bug@amsat.org> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2017-05-08Merge remote-tracking branch 'bonzini/tags/for-upstream' into stagingStefan Hajnoczi1-1/+1
A large set of small patches. I have not included yet vhost-user-scsi, but it'll come in the next pull request. * use GDB XML register description for x86 * use _Static_assert in QEMU_BUILD_BUG_ON * add "R:" to MAINTAINERS and get_maintainers * checkpatch improvements * dump threading fixes * first part of vhost-user-scsi support * QemuMutex tracing * vmw_pvscsi and megasas fixes * sgabios module update * use Rev3 (ACPI 2.0) FADT * deprecate -hdachs * improve -accel documentation * hax fix * qemu-char GSource bugfix # gpg: Signature made Fri 05 May 2017 06:10:40 AM EDT # gpg: using RSA key 0xBFFBD25F78C7AE83 # gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" # gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" # Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1 # Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83 * bonzini/tags/for-upstream: (21 commits) vhost-scsi: create a vhost-scsi-common abstraction libvhost-user: replace vasprintf() to fix build get_maintainer: add subsystem to reviewer output get_maintainer: --r (list reviewer) is on by default get_maintainer: it's '--pattern-depth', not '-pattern-depth' get_maintainer: Teach get_maintainer.pl about the new "R:" tag MAINTAINERS: Add "R:" tag for self-appointed reviewers Fix the -accel parameter and the documentation for 'hax' dump: Acquire BQL around vm_start() in dump thread hax: Fix memory mapping de-duplication logic checkpatch: Disallow glib asserts in main code trace: add qemu mutex lock and unlock trace events vmw_pvscsi: check message ring page count at initialisation sgabios: update for "fix wrong video attrs for int 10h,ah==13h" scsi: avoid an off-by-one error in megasas_mmio_write vl: deprecate the "-hdachs" option use _Static_assert in QEMU_BUILD_BUG_ON target/i386: Add GDB XML register description support char: Fix removing wrong GSource that be found by fd_in_tag hw/i386: Build-time assertion on pc/q35 reset register being identical. ... Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-05-05Merge remote-tracking branch 'elmarco/tags/chr-tests-pull-request' into stagingStefan Hajnoczi1-82/+66
# gpg: Signature made Thu 04 May 2017 12:42:10 PM BST # gpg: using RSA key 0xDAE8E10975969CE5 # gpg: Good signature from "Marc-André Lureau <marcandre.lureau@redhat.com>" # gpg: aka "Marc-André Lureau <marcandre.lureau@gmail.com>" # Primary key fingerprint: 87A9 BD93 3F87 C606 D276 F62D DAE8 E109 7596 9CE5 * elmarco/tags/chr-tests-pull-request: (21 commits) tests: add /char/console test tests: add /char/udp test tests: add /char/socket test tests: add /char/file test tests: add /char/pipe test tests: add alias check in /char/ringbuf char-udp: flush as much buffer as possible char-socket: add 'connected' property char-socket: add 'addr' property char-socket: update local address after listen char-socket: introduce update_disconnected_filename() char: useless NULL check char: remove chardevs list char: remove qemu_chardev_add char: use /chardevs container instead of chardevs list vl: add todo note about root container cleanup char: add a /chardevs container container: don't leak container reference xen: use a better chardev type check mux: simplfy muxes_realize_done ... Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-05-04char: useless NULL checkMarc-André Lureau1-1/+1
g_strdup(NULL) returns NULL already. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2017-05-04char: remove chardevs listMarc-André Lureau1-6/+0
The list is now empty, the chardev cleanup is taken care of by the unref of the root container. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2017-05-04char: remove qemu_chardev_addMarc-André Lureau1-23/+4
qemu_chardev_new() now uses object_new_with_props() with /chardevs parent container. It will fail to insert the object if the same "id" already exists. "chardevs" list usage has been removed in previous commits. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2017-05-04char: use /chardevs container instead of chardevs listMarc-André Lureau1-30/+36
Use object_resolve_path_component() and object_child_foreach() on /chardevs container instead of iterating over chardevs list. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2017-05-04char: add a /chardevs containerMarc-André Lureau1-18/+32
Add a /chardevs container object to hold the list of chardevs. (Note: QTAILQ chardevs is going away in the following commits) Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2017-05-04mux: simplfy muxes_realize_doneMarc-André Lureau1-7/+2
mux_chr_event() already send events to all backends, rename it, export it, and use it from muxes_realize_done. This should help abstract away mux implementation. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2017-05-04char: remove qemu_chr_be_generic_openMarc-André Lureau1-8/+2
The function simply alias and hides the real event function. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2017-05-04chardev: Basic support for TN3270Jing Liu1-2/+9
This introduces basic support for TN3270, which needs to negotiate three Telnet options during handshake: - End of Record - Binary Transmission - Terminal-Type As a basic implementation, this simply ignores NOP and Interrupt Process(IP) commands. More work should be done for them later. For more details, please refer to RFC 854 and 1576. Signed-off-by: Jing Liu <liujbjl@linux.vnet.ibm.com> Signed-off-by: Yang Chen <bjcyang@linux.vnet.ibm.com> Reviewed-by: QingFeng Hao <haoqf@linux.vnet.ibm.com> Acked-by: Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2017-05-03char: Fix removing wrong GSource that be found by fd_in_tagzhanghailiang1-1/+1
We use fd_in_tag to find a GSource, fd_in_tag is return value of g_source_attach(GSource *source, GMainContext *context), the return value is unique only in the same context, so we may get the same values with different 'context' parameters. It is no problem to find the right fd_in_tag by using g_main_context_find_source_by_id(GMainContext *context, guint source_id) while there is only one default main context. But colo-compare tries to create/use its own context, and if we pass wrong 'context' parameter with right fd_in_tag, we will find a wrong GSource to handle. We tried to fix the related codes in commit b43decb015a6efeb9e3cdbdb80f6547ad7248a4c, but it didn't fix the bug completely, because we still have some codes didn't pass *right* context parameter for remove_fd_in_watch(). Let's fix it by record the GSource directly instead of fd_in_tag. Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <1492564532-91680-1-git-send-email-zhang.zhanghailiang@huawei.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-03-06char: remove the right fd been watched in qemu_chr_fe_set_handlers()zhanghailiang1-1/+1
We can call qemu_chr_fe_set_handlers() to add/remove fd been watched in 'context' which can be either default main context or other explicit context. But the original logic is not correct, we didn't remove the right fd because we call g_main_context_find_source_by_id(NULL, tag) which always try to find the Gsource from default context. Fix it by passing the right context to g_main_context_find_source_by_id(). Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-02-20Add wctablet deviceAnatoli Huseu11-0/+1
Add QEMU Wacom Penpartner serial tablet emulation. GSoC 2016 project. Signed-off-by: Anatoli Huseu1 <avg.tolik@gmail.com> Various cleanups. Add line speed tracking. Implement ST and SP commands. Adapted to chardev QOMification. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Message-id: 1486391007-10116-1-git-send-email-kraxel@redhat.com
2017-01-31char: headers clean-upMarc-André Lureau1-39/+1
Those could probably be squashed with earlier patches, however I couldn't easily identify them, test them or check if there are still necessary on various platforms. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2017-01-31char: move parallel chardev in its own fileMarc-André Lureau1-286/+1
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Acked-by: Eric Blake <eblake@redhat.com>
2017-01-31char: move serial chardev to its own fileMarc-André Lureau1-276/+2
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Acked-by: Eric Blake <eblake@redhat.com>
2017-01-31char: move pty chardev in its own fileMarc-André Lureau1-258/+0
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Acked-by: Eric Blake <eblake@redhat.com>
2017-01-31char: move pipe chardev in its own fileMarc-André Lureau1-166/+0
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Acked-by: Eric Blake <eblake@redhat.com>
2017-01-31char: move console in its own fileMarc-André Lureau1-3/+0
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Acked-by: Eric Blake <eblake@redhat.com>
2017-01-31char: move stdio in its own fileMarc-André Lureau1-120/+0
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Acked-by: Eric Blake <eblake@redhat.com>
2017-01-31char: move file chardev in its own fileMarc-André Lureau1-106/+0
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Acked-by: Eric Blake <eblake@redhat.com>
2017-01-31char: move udp chardev in its own fileMarc-André Lureau1-198/+0
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Acked-by: Eric Blake <eblake@redhat.com>
2017-01-31char: move socket chardev to its own fileMarc-André Lureau1-978/+1
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Acked-by: Eric Blake <eblake@redhat.com>
2017-01-31char: move win-stdio into its own fileMarc-André Lureau1-229/+2
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Acked-by: Eric Blake <eblake@redhat.com>
2017-01-31char: move win chardev base class in its own fileMarc-André Lureau1-250/+3
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Acked-by: Eric Blake <eblake@redhat.com>
2017-01-31char: move fd chardev in its own fileMarc-André Lureau1-145/+2
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Acked-by: Eric Blake <eblake@redhat.com>
2017-01-31char: move QIOChannel-related stuff to char-io.hMarc-André Lureau1-173/+1
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2017-01-31char: remove unused READ_RETRIESMarc-André Lureau1-1/+0
Curiously unused since its introduction in commit 7b0bfdf52d69. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2017-01-31char: rename and move to header CHR_READ_BUF_LENMarc-André Lureau1-7/+6
This define is used by several character devices, place it in char common header. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2017-01-31char: move ringbuf/memory to its own fileMarc-André Lureau1-218/+0
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2017-01-31char: move mux to its own fileMarc-André Lureau1-349/+3
A mechanical move, except that qemu_chr_write_all() needs to be declared in char.h header to be used from chardev unit files. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2017-01-31char: move null chardev to its own fileMarc-André Lureau1-23/+0
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2017-01-31char: make null_chr_write() the default methodMarc-André Lureau1-8/+13
All chardev must implement chr_write(), but parallel and null chardev both use null_chr_write(). Move it to the base class, so we don't need to export the function when splitting the chardev in respective files. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2017-01-31char: move to chardev/Marc-André Lureau1-0/+5132
The following commits will split char.c in several files. Let's put them in a subdirectory. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
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