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2024-09-12hw/display/vhost-user-gpu.c: fix vhost_user_gpu_chr_read()Haoran Zhang
fix vhost_user_gpu_chr_read() where `size` was incorrectly passed to `msg->flags`. Fixes: 267f664658 ("hw/display: add vhost-user-vga & gpu-pci") Signed-off-by: Haoran Zhang <wh1sper@zju.edu.cn> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Michael Tokarev <mjt@tls.msk.ru> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru> (cherry picked from commit d6192f3f7593536a4285e8ab6c6cf3f34973ce62) Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2022-09-29vhost-user: Call qemu_socketpair() instead of socketpair()Guoyi Tu
As the close-on-exec flags is not set on the file descriptors returned by socketpair() at default, the fds will survive across exec' function. In the case that exec' function get invoked, such as the live-update feature which is been developing, it will cause fd leaks. To address this problem, we should call qemu_socketpair() to create an pair of connected sockets with the close-on-exec flag set. Signed-off-by: Guoyi Tu <tugy@chinatelecom.cn> Reviewed-by: Christian Schoenebeck <qemu_oss@crudebyte.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <7002b12a5fb0a30cd878e14e07da61c36da72913.1661240709.git.tugy@chinatelecom.cn>
2022-06-06modules: introduces module_kconfig directiveJose R. Ziviani
module_kconfig is a new directive that should be used with module_obj whenever that module depends on the Kconfig to be enabled. When the module is enabled in Kconfig we are sure that its dependencies will be enabled as well, thus the module will be loaded without any problem. The correct way to use module_kconfig is by passing the Kconfig option to module_kconfig (or the *config-devices.mak without CONFIG_). Signed-off-by: Jose R. Ziviani <jziviani@suse.de> Signed-off-by: Dario Faggioli <dfaggioli@suse.com> Message-Id: <165369002370.5857.12150544416563557322.stgit@work> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-05-16virtio: add vhost support for virtio devicesJonah Palmer
This patch adds a get_vhost() callback function for VirtIODevices that returns the device's corresponding vhost_dev structure, if the vhost device is running. This patch also adds a vhost_started flag for VirtIODevices. Previously, a VirtIODevice wouldn't be able to tell if its corresponding vhost device was active or not. Signed-off-by: Jonah Palmer <jonah.palmer@oracle.com> Message-Id: <1648819405-25696-3-git-send-email-jonah.palmer@oracle.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2022-01-10Revert "virtio: introduce macro IRTIO_CONFIG_IRQ_IDX"Michael S. Tsirkin
This reverts commit bf1d85c166c19af95dbd27b1faba1d2909732323. Fixes: bf1d85c166 ("virtio: introduce macro IRTIO_CONFIG_IRQ_IDX") Cc: "Cindy Lu" <lulu@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2022-01-06virtio: introduce macro IRTIO_CONFIG_IRQ_IDXCindy Lu
To support configure interrupt for vhost-vdpa Introduce VIRTIO_CONFIG_IRQ_IDX -1 as configure interrupt's queue index, Then we can reuse the functions guest_notifier_mask and guest_notifier_pending. Add the check of queue index in these drivers, if the driver does not support configure interrupt, the function will just return Signed-off-by: Cindy Lu <lulu@redhat.com> Message-Id: <20211104164827.21911-2-lulu@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-12-21ui: simplify gl unblock & flushMarc-André Lureau
GraphicHw.gl_flushed was introduced to notify the device (vhost-user-gpu) that the GL resources (the display scanout) are no longer needed. It was decoupled from QEMU own gl-blocking mechanism, but that difference isn't helping. Instead, we can reuse QEMU gl-blocking and notify virtio_gpu_gl_flushed() when unblocking (to unlock vhost-user-gpu). An extra block/unblock is added arount dpy_gl_update() so existing backends that don't block will have the flush event handled. It will also help when there are no backends associated. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2021-07-09modules: add virtio-gpu module annotationsGerd Hoffmann
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Jose R. Ziviani <jziviani@suse.de> Message-Id: <20210624103836.2382472-7-kraxel@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-06-30vhost: Distinguish errors in vhost_dev_get_config()Kevin Wolf
Instead of just returning 0/-1 and letting the caller make up a meaningless error message, add an Error parameter to allow reporting the real error and switch to 0/-errno so that different kind of errors can be distinguished in the caller. config_len in vhost_user_get_config() is defined by the device, so if it's larger than VHOST_USER_MAX_CONFIG_SIZE, this is a programming error. Turn the corresponding check into an assertion. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20210609154658.350308-6-kwolf@redhat.com> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2021-03-09vhost_user_gpu: Drop dead check for g_malloc() failureMarkus Armbruster
Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Message-Id: <20210126124240.2081959-3-armbru@redhat.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-03-04virtio-gpu: Do not distinguish the primary consoleAkihiko Odaki
In the past, virtio-gpu set NULL as the surface for the secondary consoles to hide its window. The distinction is now handled in ui/console and the display backends and virtio-gpu does no longer have to do that. Signed-off-by: Akihiko Odaki <akihiko.odaki@gmail.com> Message-Id: <20210225101316.83940-3-akihiko.odaki@gmail.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2021-03-04ui/console: Add placeholder flag to message surfaceAkihiko Odaki
The surfaces created with former qemu_create_message_surface did not display the content from the guest and always contained simple messages describing the reason. A display backend may want to hide the window showing such a surface. This change renames the function to qemu_create_placeholder_surface, and adds "placeholder" flag; the display can check the flag to decide to do anything special like hiding the window. Signed-off-by: Akihiko Odaki <akihiko.odaki@gmail.com> Message-Id: <20210225101316.83940-1-akihiko.odaki@gmail.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2021-02-04display/ui: add a callback to indicate GL state is flushedMarc-André Lureau
Displaying rendered resources requires blocking qemu GPU to avoid extra framebuffer copies. For an external display, via Spice currently, there is a callback to block/unblock the rendering in the same thread. But with the vhost-user-gpu backend, the qemu process doesn't handle the rendering itself, and the blocking callback isn't effective. Instead, the backend must be notified when the display code is done. Fix this by adding a new GraphicHwOps callback to indicate the GL state is flushed, and we are done manipulating the shared GL resources. Call it from gtk and spice display. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20210204105232.834642-19-marcandre.lureau@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2021-02-04vhost-user-gpu: add a configuration flag for dmabuf usageMarc-André Lureau
Let's inform VirtioGPUBase that vhost-user-gpu require DMABUF messages. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20210204105232.834642-11-marcandre.lureau@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2021-02-04ui: remove console_has_gl_dmabuf()Marc-André Lureau
This check is currently limited. It only is used by vhost-user-gpu (not by vfio-display), and will print an error repeatedly during run-time. We are going to dissociate the GL context from the DisplayChangeListener, and listeners may come and go. The following patches will address this differently. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20210204105232.834642-10-marcandre.lureau@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2021-02-04vhost-user-gpu: check backend for EDID supportMarc-André Lureau
EDID has been enabled by default, but the backend may not implement it (such as the contrib backend). This results in extra warnings and potentially other issues in the guest. The option shouldn't probably have been added to VIRTIO_GPU_BASE, but it's a bit too late now, report an error and disable EDID when it's not available. Fixes: 0a7196625 ("edid: flip the default to enabled") Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20210204105232.834642-2-marcandre.lureau@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-08-27vhost-user-gpu: Move QOM macro to headerEduardo Habkost
Move the VHOST_USER_GPU type checking macro to virtio-gpu.h, close to the TYPE_VHOST_USER_GPU #define. This will make future conversion to OBJECT_DECLARE* easier. Reviewed-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Tested-By: Roman Bolshakov <r.bolshakov@yadro.com> Message-Id: <20200825192110.3528606-30-ehabkost@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-05-15qom: Drop parameter @errp of object_property_add() & friendsMarkus Armbruster
The only way object_property_add() can fail is when a property with the same name already exists. Since our property names are all hardcoded, failure is a programming error, and the appropriate way to handle it is passing &error_abort. Same for its variants, except for object_property_add_child(), which additionally fails when the child already has a parent. Parentage is also under program control, so this is a programming error, too. We have a bit over 500 callers. Almost half of them pass &error_abort, slightly fewer ignore errors, one test case handles errors, and the remaining few callers pass them to their own callers. The previous few commits demonstrated once again that ignoring programming errors is a bad idea. Of the few ones that pass on errors, several violate the Error API. The Error ** argument must be NULL, &error_abort, &error_fatal, or a pointer to a variable containing NULL. Passing an argument of the latter kind twice without clearing it in between is wrong: if the first call sets an error, it no longer points to NULL for the second call. ich9_pm_add_properties(), sparc32_ledma_realize(), sparc32_dma_realize(), xilinx_axidma_realize(), xilinx_enet_realize() are wrong that way. When the one appropriate choice of argument is &error_abort, letting users pick the argument is a bad idea. Drop parameter @errp and assert the preconditions instead. There's one exception to "duplicate property name is a programming error": the way object_property_add() implements the magic (and undocumented) "automatic arrayification". Don't drop @errp there. Instead, rename object_property_add() to object_property_try_add(), and add the obvious wrapper object_property_add(). Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20200505152926.18877-15-armbru@redhat.com> [Two semantic rebase conflicts resolved]
2020-01-24qdev: set properties with device_class_set_props()Marc-André Lureau
The following patch will need to handle properties registration during class_init time. Let's use a device_class_set_props() setter. spatch --macro-file scripts/cocci-macro-file.h --sp-file ./scripts/coccinelle/qdev-set-props.cocci --keep-comments --in-place --dir . @@ typedef DeviceClass; DeviceClass *d; expression val; @@ - d->props = val + device_class_set_props(d, val) Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20200110153039.1379601-20-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-08-16Include hw/qdev-properties.h lessMarkus Armbruster
In my "build everything" tree, changing hw/qdev-properties.h triggers a recompile of some 2700 out of 6600 objects (not counting tests and objects that don't depend on qemu/osdep.h). Many places including hw/qdev-properties.h (directly or via hw/qdev.h) actually need only hw/qdev-core.h. Include hw/qdev-core.h there instead. hw/qdev.h is actually pointless: all it does is include hw/qdev-core.h and hw/qdev-properties.h, which in turn includes hw/qdev-core.h. Replace the remaining uses of hw/qdev.h by hw/qdev-properties.h. While there, delete a few superfluous inclusions of hw/qdev-core.h. Touching hw/qdev-properties.h now recompiles some 1200 objects. Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: "Daniel P. Berrangé" <berrange@redhat.com> Cc: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Message-Id: <20190812052359.30071-22-armbru@redhat.com>
2019-05-29hw/display: add vhost-user-vga & gpu-pciMarc-André Lureau
Add new virtio-gpu devices with a "vhost-user" property. The associated vhost-user backend is used to handle the virtio rings and provide rendering results thanks to the vhost-user-gpu protocol. Example usage: -object vhost-user-backend,id=vug,cmd="./vhost-user-gpu" -device vhost-user-vga,vhost-user=vug Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-id: 20190524130946.31736-10-marcandre.lureau@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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