aboutsummaryrefslogtreecommitdiff
path: root/qemu-char.c
AgeCommit message (Collapse)Author
2013-04-04qemu-char: Call fe_claim / fe_release when not using qdev chr propertiesHans de Goede
chardev-frontends need to explictly check, increase and decrement the avail_connections "property" of the chardev when they are not using a qdev-chardev-property for the chardev. This fixes things like: qemu-kvm -chardev stdio,id=foo -device isa-serial,chardev=foo \ -mon chardev=foo Working, where they should fail. Most of the changes here are due to old hardware emulation code which is using serial_hds directly rather then a qdev-chardev-property. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Message-id: 1364412581-3672-3-git-send-email-hdegoede@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-04-04qemu-char: Add qemu_chr_fe_claim / _release helper functionsHans de Goede
Add qemu_chr_fe_claim / _release helper functions for properly dealing with avail_connections. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Message-id: 1364412581-3672-2-git-send-email-hdegoede@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-04-02Merge remote-tracking branch 'luiz/queue/qmp' into stagingAnthony Liguori
# By Stefan Hajnoczi # Via Luiz Capitulino * luiz/queue/qmp: chardev: clear O_NONBLOCK on SCM_RIGHTS file descriptors qemu-socket: set passed fd non-blocking in socket_connect() net: ensure "socket" backend uses non-blocking fds oslib-posix: rename socket_set_nonblock() to qemu_set_nonblock()
2013-04-02chardev: clear O_NONBLOCK on SCM_RIGHTS file descriptorsStefan Hajnoczi
When we receive a file descriptor over a UNIX domain socket the O_NONBLOCK flag is preserved. Clear the O_NONBLOCK flag and rely on QEMU file descriptor users like migration, SPICE, VNC, block layer, and others to set non-blocking only when necessary. This change ensures we don't accidentally expose O_NONBLOCK in the QMP API. QMP clients should not need to get the non-blocking state "correct". A recent real-world example was when libvirt passed a non-blocking TCP socket for migration where we expected a blocking socket. The source QEMU produced a corrupted migration stream since its code did not cope with non-blocking sockets. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2013-04-02oslib-posix: rename socket_set_nonblock() to qemu_set_nonblock()Stefan Hajnoczi
The fcntl(fd, F_SETFL, O_NONBLOCK) flag is not specific to sockets. Rename to qemu_set_nonblock() just like qemu_set_cloexec(). Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2013-04-02qemu-char: rewrite io_channel_send_all and drop the '_all' suffixAnthony Liguori
The current code is oddly written and have equally odd semantics. Despite the '_all' suffix, upon EAGAIN the result will be a partial write but instead of returning the partial write, we return EAGAIN. Change the behavior to write as much as we can until we get an EAGAIN returning a partial write if we do. Reported-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Message-id: 1364575190-731-1-git-send-email-aliguori@us.ibm.com
2013-03-27qemu-char: add_handlers: Don't re-send the be_open event on unregisterHans de Goede
Resending the be_open event only is useful when a frontend is registering, not when it is unregistering. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Message-id: 1364292483-16564-9-git-send-email-hdegoede@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-27qemu-char: Move incrementing of avail_connections to qdev-properties-systemHans de Goede
The decrement of avail_connections is done in qdev-properties-system move the increment there too for proper balancing of the calls. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Message-id: 1364292483-16564-8-git-send-email-hdegoede@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-27qemu-char: Consolidate guest_close/guest_open into a set_fe_open callbackHans de Goede
Signed-off-by: Hans de Goede <hdegoede@redhat.com> Message-id: 1364292483-16564-7-git-send-email-hdegoede@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-27qemu-char: Cleanup: consolidate fe_open/fe_close into fe_set_openHans de Goede
Signed-off-by: Hans de Goede <hdegoede@redhat.com> Message-id: 1364292483-16564-6-git-send-email-hdegoede@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-27qemu-char: Automatically do fe_open / fe_close on qemu_chr_add_handlersHans de Goede
Most frontends can't really determine if the guest actually has the frontend side open. So lets automatically generate fe_open / fe_close as soon as a frontend becomes ready (as signalled by calling qemu_chr_add_handlers) / becomes non ready (as signalled by setting all handlers to NULL). And allow frontends which can actually determine if the guest is listening to opt-out of this. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Message-id: 1364292483-16564-5-git-send-email-hdegoede@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-27qemu-char: Add fe_open trackingHans de Goede
Add tracking of the fe_open state to struct CharDriverState. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Message-id: 1364292483-16564-4-git-send-email-hdegoede@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-27qemu-char: Rename qemu_chr_generic_open to qemu_chr_be_generic_openHans de Goede
To better reflect that it is for handling a backend being opened. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Message-id: 1364292483-16564-3-git-send-email-hdegoede@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-27qemu-char: Rename opened to be_openHans de Goede
Rename the opened variable to be_open to reflect that it contains the opened state of the backend. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Message-id: 1364292483-16564-2-git-send-email-hdegoede@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-26char: introduce a blocking version of qemu_chr_fe_writeAnthony Liguori
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-19char: Fix return type of qemu_chr_fe_add_watch()Kevin Wolf
qemu_chr_fe_add_watch() can return negative errors, therefore it must not have an unsigned return type. For consistency with other qemu_chr_fe_* functions, this uses a standard C int instead of glib types. In situations where qemu_chr_fe_add_watch() is falsely assumed to have succeeded, the serial ports would go into a state where it never becomes ready for transmitting more data; this is fixed by this patch. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-13qemu-char.c: fix waiting for telnet connection messageIgor Mitsyanko
Current colon position in "waiting for telnet connection" message template produces messages like: QEMU waiting for connection on: telnet::127.0.0.16666,server After moving a colon to the right, we will get a correct messages like: QEMU waiting for connection on: telnet:127.0.0.1:6666,server Signed-off-by: Igor Mitsyanko <i.mitsyanko@gmail.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-03-13chardev: add udp support to qapiGerd Hoffmann
This patch adds 'udp' support to qapi. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-03-13chardev: add memory (ringbuf) support to qapiGerd Hoffmann
This patch adds 'memory' support to qapi and also switches over the memory chardev initialization to the new qapi code path. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-03-13chardev: add vc support to qapiGerd Hoffmann
This patch adds 'vc' support to qapi and also switches over the vc chardev initialization to the new qapi code path. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-03-13chardev: add spice support to qapiGerd Hoffmann
This patch adds 'spicevmc' and 'spiceport' support to qapi and also switches over the spice chardev initialization to the new qapi code path.
2013-03-13chardev: add pipe support to qapiGerd Hoffmann
This patch adds 'pipe' support to qapi and also switches over the pipe chardev initialization to the new qapi code path. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-03-13chardev: add console support to qapiGerd Hoffmann
This patch adds 'console' support to qapi and also switches over the console chardev initialization to the new qapi code path. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-03-13chardev: switch pty init to qapiGerd Hoffmann
This patch switches over the pty chardev initialization to the new qapi code path. Bonus: Taking QemuOpts out of the loop allows some nice cleanups along the way. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-03-13chardev: switch parallel init to qapiGerd Hoffmann
This patch switches over the parallel chardev initialization to the new qapi code path. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-03-13chardev: switch serial/tty init to qapiGerd Hoffmann
This patch switches over the serial chardev initialization to the new qapi code path. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-03-13chardev: add stdio support to qapiGerd Hoffmann
This patch adds 'stdio' support to qapi and also switches over the stdio chardev initialization to the new qapi code path. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-03-13chardev: switch file init to qapiGerd Hoffmann
This patch switches over the 'file' chardev initialization to the new qapi code path. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-03-13chardev: add braille support to qapiGerd Hoffmann
This patch adds 'braille' support to qapi and also switches over the braille chardev initialization to the new qapi code path. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-03-13chardev: add msmouse support to qapiGerd Hoffmann
This patch adds 'msmouse' support to qapi and also switches over the msmouse chardev initialization to the new qapi code path. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-03-13chardev: switch null init to qapiGerd Hoffmann
This patch switches over the 'null' chardev initialization to the new qapi code path. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-03-13chardev: add mux chardev support to qapiGerd Hoffmann
This adds mux chardev support to the qapi and also makes the qapi-based chardev creation path handle the "mux=on" option correctly.
2013-03-13chardev: add support for qapi-based chardev initializationGerd Hoffmann
This patch add support for a new way to initialize chardev devices. Instead of calling a initialization function with a QemuOpts we will now create a (qapi) ChardevBackend, optionally call a function to fill ChardevBackend from QemuOpts, then go create the chardev using the new qapi code path which is also used by chardev-add. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-03-12Add a TPM Passthrough backend driver implementationStefan Berger
This patch is based of off version 9 of Stefan Berger's patch series "QEMU Trusted Platform Module (TPM) integration" and adds a new backend driver for it. This patch adds a passthrough backend driver for passing commands sent to the emulated TPM device directly to a TPM device opened on the host machine. Thus it is possible to use a hardware TPM device in a system running on QEMU, providing the ability to access a TPM in a special state (e.g. after a Trusted Boot). This functionality is being used in the acTvSM Trusted Virtualization Platform which is available on [1]. Usage example: qemu-system-x86_64 -tpmdev passthrough,id=tpm0,path=/dev/tpm0 \ -device tpm-tis,tpmdev=tpm0 \ -cdrom test.iso -boot d Some notes about the host TPM: The TPM needs to be enabled and activated. If that's not the case one has to go through the BIOS/UEFI and enable and activate that TPM for TPM commands to work as expected. It may be necessary to boot the kernel using tpm_tis.force=1 in the boot command line or 'modprobe tpm_tis force=1' in case of using it as a module. Regards, Andreas Niederl, Stefan Berger [1] http://trustedjava.sourceforge.net/ Signed-off-by: Andreas Niederl <andreas.niederl@iaik.tugraz.at> Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com> Reviewed-by: Corey Bryant <coreyb@linux.vnet.ibm.com> Reviewed-by: Joel Schopp <jschopp@linux.vnet.ibm.com> Message-id: 1361987275-26289-6-git-send-email-stefanb@linux.vnet.ibm.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-10qemu-char: fix win32 buildBlue Swirl
96c6384776d631839a9c8fe02bf135f9ba22586c did not adjust Win32 #ifdeffery properly, breaking build in later commits. Fix. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Tested-by: Igor Mitsyanko <i.mitsyanko@gmail.com> Message-id: 0ba5565b1ed44380c57d4a5fab86e9549f581ebf.1362822910.git.blauwirbel@gmail.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-08qemu-char: move text console init to console.cAnthony Liguori
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Amit Shah <amit.shah@redhat.com> Message-id: 17cefde0a8d7807294bab95e93c3328a20d3f2ed.1362505276.git.amit.shah@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-08qemu-char: move msmouse registeration to msmouse.cAnthony Liguori
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Amit Shah <amit.shah@redhat.com> Message-id: b47d1153b0d7669743c9a6bb98ce30f4cf7f876b.1362505276.git.amit.shah@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-08qemu-char: move baum registration to baum.cAnthony Liguori
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Amit Shah <amit.shah@redhat.com> Message-id: 1b24baa1ec3a174d5cad31e079d829904b53077b.1362505276.git.amit.shah@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-08qemu-char: move spice registration to spice-qemu-char.cAnthony Liguori
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Amit Shah <amit.shah@redhat.com> Message-id: 49a8d12eeb117e5530b2fab02af7681b54f9245c.1362505276.git.amit.shah@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-08qemu-char: make char drivers dynamically registerableAnthony Liguori
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Amit Shah <amit.shah@redhat.com> Message-id: 0ff4f5f2b8b7afdb85a0c241403ad73f472f0b81.1362505276.git.amit.shah@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-08qemu-char: remove use of QEMUTimer in favor of glib idle functionAnthony Liguori
qemu-char is now independent of the QEMU main loop. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Amit Shah <amit.shah@redhat.com> Message-id: 3cda0bbcfb94912df8a767983a52bb71a4a3231d.1362505276.git.amit.shah@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-08qemu-char: use a glib timeout instead of qemu-timerAnthony Liguori
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Amit Shah <amit.shah@redhat.com> Message-id: 05a883ce5a98275b976bf0124610599859c2b7da.1362505276.git.amit.shah@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-08char: add gio watch fn for tcp backendsAmit Shah
Signed-off-by: Amit Shah <amit.shah@redhat.com> Message-id: b50e668c4f4146a654c5d4412440eb9e589f2c02.1362505276.git.amit.shah@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-08qemu-char: add pty watchAnthony Liguori
This lets ptys support adding front end watchs. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Amit Shah <amit.shah@redhat.com> Message-id: 23380f37b22d407ba0b9e080f6ea0d66b279f2d2.1362505276.git.amit.shah@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-08qemu-char: add watch supportAnthony Liguori
This allows a front-end to request for a callback when the backend is writable again. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Amit Shah <amit.shah@redhat.com> Message-id: 96f93c0f741064604bbb6389ce962191120af8b7.1362505276.git.amit.shah@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-08qemu-char: tcp: make use GIOChannelAnthony Liguori
I didn't bother switching to g_io_channel_read/write because we need to use sendmsg on Unix. No problem though since we're using an unbuffered channel. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Amit Shah <amit.shah@redhat.com> Message-id: 002f726576dfb51bca4854aa257b74d77c1cd4e8.1362505276.git.amit.shah@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-08qemu-char: convert UDP to GIOChannelAnthony Liguori
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Amit Shah <amit.shah@redhat.com> Message-id: 775a2bd666a3d1fa008656bf97191b7573c6ffb5.1362505276.git.amit.shah@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-08qemu-char: convert pty to GIOChannelAnthony Liguori
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Amit Shah <amit.shah@redhat.com> Message-id: 339eebf3c59a450b0354056e9ac4b41f67230831.1362505276.git.amit.shah@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-08qemu-char: convert fd_chr to use a GIOChannelAnthony Liguori
This uses the newly introduced IOWatchPoll source. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Amit Shah <amit.shah@redhat.com> Message-id: 0cb5d14510ee835a0ebc23676d10a2cce9280da5.1362505276.git.amit.shah@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-08char: add IOWatchPoll supportAnthony Liguori
This is a special GSource that supports CharDriverState style poll callbacks. For reviewability and bisectability, this code is #if 0'd out in this patch to avoid unused warnings since all of the functions are static. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Amit Shah <amit.shah@redhat.com> Message-id: 9b59ac17b9d0bb3972a73fed04d415f07b391936.1362505276.git.amit.shah@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-30 08:06:43 +0000