From d288eef3a0a8ac46cc45808b50d73606476148b0 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Date: Fri, 3 May 2019 15:00:29 +0200 Subject: libvhost-user: fix -Waddress-of-packed-member MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit /home/elmarco/src/qemu/contrib/libvhost-user/libvhost-user.c: In function ‘vu_set_mem_table_exec_postcopy’: /home/elmarco/src/qemu/contrib/libvhost-user/libvhost-user.c:546:31: warning: taking address of packed member of ‘struct VhostUserMsg’ may result in an unaligned pointer value [-Waddress-of-packed-member] 546 | VhostUserMemory *memory = &vmsg->payload.memory; | ^~~~~~~~~~~~~~~~~~~~~ /home/elmarco/src/qemu/contrib/libvhost-user/libvhost-user.c: In function ‘vu_set_mem_table_exec’: /home/elmarco/src/qemu/contrib/libvhost-user/libvhost-user.c:688:31: warning: taking address of packed member of ‘struct VhostUserMsg’ may result in an unaligned pointer value [-Waddress-of-packed-member] 688 | VhostUserMemory *memory = &vmsg->payload.memory; | ^~~~~~~~~~~~~~~~~~~~~ /home/elmarco/src/qemu/contrib/libvhost-user/libvhost-user.c: In function ‘vu_set_vring_addr_exec’: /home/elmarco/src/qemu/contrib/libvhost-user/libvhost-user.c:817:36: warning: taking address of packed member of ‘struct VhostUserMsg’ may result in an unaligned pointer value [-Waddress-of-packed-member] 817 | struct vhost_vring_addr *vra = &vmsg->payload.addr; | ^~~~~~~~~~~~~~~~~~~ Signed-off-by: Marc-André Lureau Message-id: 20190503130034.24916-2-marcandre.lureau@redhat.com Signed-off-by: Gerd Hoffmann --- contrib/libvhost-user/libvhost-user.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/contrib/libvhost-user/libvhost-user.c b/contrib/libvhost-user/libvhost-user.c index e08d6c7b97..dcf4a969f2 100644 --- a/contrib/libvhost-user/libvhost-user.c +++ b/contrib/libvhost-user/libvhost-user.c @@ -542,7 +542,7 @@ static bool vu_set_mem_table_exec_postcopy(VuDev *dev, VhostUserMsg *vmsg) { int i; - VhostUserMemory *memory = &vmsg->payload.memory; + VhostUserMemory m = vmsg->payload.memory, *memory = &m; dev->nregions = memory->nregions; DPRINT("Nregions: %d\n", memory->nregions); @@ -684,7 +684,7 @@ static bool vu_set_mem_table_exec(VuDev *dev, VhostUserMsg *vmsg) { int i; - VhostUserMemory *memory = &vmsg->payload.memory; + VhostUserMemory m = vmsg->payload.memory, *memory = &m; for (i = 0; i < dev->nregions; i++) { VuDevRegion *r = &dev->regions[i]; @@ -813,7 +813,7 @@ vu_set_vring_num_exec(VuDev *dev, VhostUserMsg *vmsg) static bool vu_set_vring_addr_exec(VuDev *dev, VhostUserMsg *vmsg) { - struct vhost_vring_addr *vra = &vmsg->payload.addr; + struct vhost_vring_addr addr = vmsg->payload.addr, *vra = &addr; unsigned int index = vra->index; VuVirtq *vq = &dev->vq[index]; -- cgit v1.2.3 From 78067fdef6828febf894ff1941cfb95e2dd00ad5 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Date: Fri, 3 May 2019 15:00:30 +0200 Subject: libvhost-user: add PROTOCOL_F_CONFIG if {set, get}_config MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add the config protocol feature bit if the set_config & get_config callbacks are implemented. Signed-off-by: Marc-André Lureau Message-id: 20190503130034.24916-3-marcandre.lureau@redhat.com Signed-off-by: Gerd Hoffmann --- contrib/libvhost-user/libvhost-user.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/contrib/libvhost-user/libvhost-user.c b/contrib/libvhost-user/libvhost-user.c index dcf4a969f2..74d42177c5 100644 --- a/contrib/libvhost-user/libvhost-user.c +++ b/contrib/libvhost-user/libvhost-user.c @@ -1157,6 +1157,10 @@ vu_get_protocol_features_exec(VuDev *dev, VhostUserMsg *vmsg) features |= 1ULL << VHOST_USER_PROTOCOL_F_PAGEFAULT; } + if (dev->iface->get_config && dev->iface->set_config) { + features |= 1ULL << VHOST_USER_PROTOCOL_F_CONFIG; + } + if (dev->iface->get_protocol_features) { features |= dev->iface->get_protocol_features(dev); } -- cgit v1.2.3 From f24bb7287ddbdfd9b75fe782c366abc7939a4190 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Date: Fri, 3 May 2019 15:00:31 +0200 Subject: Add vhost-user-backend MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Create a vhost-user-backend object that holds a connection to a vhost-user backend (or "slave" process) and can be referenced from virtio devices that support it. See later patches for input & gpu usage. Note: a previous iteration of this object made it user-creatable, and allowed managed sub-process spawning, but that has been dropped for now. Signed-off-by: Marc-André Lureau Message-id: 20190503130034.24916-4-marcandre.lureau@redhat.com Signed-off-by: Gerd Hoffmann --- MAINTAINERS | 2 + backends/Makefile.objs | 2 + backends/vhost-user.c | 209 ++++++++++++++++++++++++++++++++++++ include/sysemu/vhost-user-backend.h | 57 ++++++++++ 4 files changed, 270 insertions(+) create mode 100644 backends/vhost-user.c create mode 100644 include/sysemu/vhost-user-backend.h diff --git a/MAINTAINERS b/MAINTAINERS index 66ddbda9c9..2e40390ebc 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1478,6 +1478,8 @@ F: hw/*/*vhost* F: docs/interop/vhost-user.json F: docs/interop/vhost-user.txt F: contrib/vhost-user-*/ +F: backends/vhost-user.c +F: include/sysemu/vhost-user-backend.h virtio M: Michael S. Tsirkin diff --git a/backends/Makefile.objs b/backends/Makefile.objs index ff619d31b4..981e8e122f 100644 --- a/backends/Makefile.objs +++ b/backends/Makefile.objs @@ -14,4 +14,6 @@ common-obj-y += cryptodev-vhost.o common-obj-$(CONFIG_VHOST_CRYPTO) += cryptodev-vhost-user.o endif +common-obj-$(call land,$(CONFIG_VHOST_USER),$(CONFIG_VIRTIO)) += vhost-user.o + common-obj-$(CONFIG_LINUX) += hostmem-memfd.o diff --git a/backends/vhost-user.c b/backends/vhost-user.c new file mode 100644 index 0000000000..2b055544a7 --- /dev/null +++ b/backends/vhost-user.c @@ -0,0 +1,209 @@ +/* + * QEMU vhost-user backend + * + * Copyright (C) 2018 Red Hat Inc + * + * Authors: + * Marc-André Lureau + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + */ + + +#include "qemu/osdep.h" +#include "hw/qdev.h" +#include "qapi/error.h" +#include "qapi/qmp/qerror.h" +#include "qemu/error-report.h" +#include "qom/object_interfaces.h" +#include "sysemu/vhost-user-backend.h" +#include "sysemu/kvm.h" +#include "io/channel-command.h" +#include "hw/virtio/virtio-bus.h" + +static bool +ioeventfd_enabled(void) +{ + return kvm_enabled() && kvm_eventfds_enabled(); +} + +int +vhost_user_backend_dev_init(VhostUserBackend *b, VirtIODevice *vdev, + unsigned nvqs, Error **errp) +{ + int ret; + + assert(!b->vdev && vdev); + + if (!ioeventfd_enabled()) { + error_setg(errp, "vhost initialization failed: requires kvm"); + return -1; + } + + if (!vhost_user_init(&b->vhost_user, &b->chr, errp)) { + return -1; + } + + b->vdev = vdev; + b->dev.nvqs = nvqs; + b->dev.vqs = g_new(struct vhost_virtqueue, nvqs); + + ret = vhost_dev_init(&b->dev, &b->vhost_user, VHOST_BACKEND_TYPE_USER, 0); + if (ret < 0) { + error_setg_errno(errp, -ret, "vhost initialization failed"); + return -1; + } + + return 0; +} + +void +vhost_user_backend_start(VhostUserBackend *b) +{ + BusState *qbus = BUS(qdev_get_parent_bus(DEVICE(b->vdev))); + VirtioBusClass *k = VIRTIO_BUS_GET_CLASS(qbus); + int ret, i ; + + if (b->started) { + return; + } + + if (!k->set_guest_notifiers) { + error_report("binding does not support guest notifiers"); + return; + } + + ret = vhost_dev_enable_notifiers(&b->dev, b->vdev); + if (ret < 0) { + return; + } + + ret = k->set_guest_notifiers(qbus->parent, b->dev.nvqs, true); + if (ret < 0) { + error_report("Error binding guest notifier"); + goto err_host_notifiers; + } + + b->dev.acked_features = b->vdev->guest_features; + ret = vhost_dev_start(&b->dev, b->vdev); + if (ret < 0) { + error_report("Error start vhost dev"); + goto err_guest_notifiers; + } + + /* guest_notifier_mask/pending not used yet, so just unmask + * everything here. virtio-pci will do the right thing by + * enabling/disabling irqfd. + */ + for (i = 0; i < b->dev.nvqs; i++) { + vhost_virtqueue_mask(&b->dev, b->vdev, + b->dev.vq_index + i, false); + } + + b->started = true; + return; + +err_guest_notifiers: + k->set_guest_notifiers(qbus->parent, b->dev.nvqs, false); +err_host_notifiers: + vhost_dev_disable_notifiers(&b->dev, b->vdev); +} + +void +vhost_user_backend_stop(VhostUserBackend *b) +{ + BusState *qbus = BUS(qdev_get_parent_bus(DEVICE(b->vdev))); + VirtioBusClass *k = VIRTIO_BUS_GET_CLASS(qbus); + int ret = 0; + + if (!b->started) { + return; + } + + vhost_dev_stop(&b->dev, b->vdev); + + if (k->set_guest_notifiers) { + ret = k->set_guest_notifiers(qbus->parent, + b->dev.nvqs, false); + if (ret < 0) { + error_report("vhost guest notifier cleanup failed: %d", ret); + } + } + assert(ret >= 0); + + vhost_dev_disable_notifiers(&b->dev, b->vdev); + b->started = false; +} + +static void set_chardev(Object *obj, const char *value, Error **errp) +{ + VhostUserBackend *b = VHOST_USER_BACKEND(obj); + Chardev *chr; + + if (b->completed) { + error_setg(errp, QERR_PERMISSION_DENIED); + return; + } + + g_free(b->chr_name); + b->chr_name = g_strdup(value); + + chr = qemu_chr_find(b->chr_name); + if (chr == NULL) { + error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND, + "Chardev '%s' not found", b->chr_name); + return; + } + + if (!qemu_chr_fe_init(&b->chr, chr, errp)) { + return; + } + + b->completed = true; + /* could call vhost_dev_init() so early message can be exchanged */ +} + +static char *get_chardev(Object *obj, Error **errp) +{ + VhostUserBackend *b = VHOST_USER_BACKEND(obj); + Chardev *chr = qemu_chr_fe_get_driver(&b->chr); + + if (chr && chr->label) { + return g_strdup(chr->label); + } + + return NULL; +} + +static void vhost_user_backend_init(Object *obj) +{ + object_property_add_str(obj, "chardev", get_chardev, set_chardev, NULL); +} + +static void vhost_user_backend_finalize(Object *obj) +{ + VhostUserBackend *b = VHOST_USER_BACKEND(obj); + + g_free(b->dev.vqs); + g_free(b->chr_name); + + vhost_user_cleanup(&b->vhost_user); + qemu_chr_fe_deinit(&b->chr, true); +} + +static const TypeInfo vhost_user_backend_info = { + .name = TYPE_VHOST_USER_BACKEND, + .parent = TYPE_OBJECT, + .instance_size = sizeof(VhostUserBackend), + .instance_init = vhost_user_backend_init, + .instance_finalize = vhost_user_backend_finalize, + .class_size = sizeof(VhostUserBackendClass), +}; + +static void register_types(void) +{ + type_register_static(&vhost_user_backend_info); +} + +type_init(register_types); diff --git a/include/sysemu/vhost-user-backend.h b/include/sysemu/vhost-user-backend.h new file mode 100644 index 0000000000..9abf8f06a1 --- /dev/null +++ b/include/sysemu/vhost-user-backend.h @@ -0,0 +1,57 @@ +/* + * QEMU vhost-user backend + * + * Copyright (C) 2018 Red Hat Inc + * + * Authors: + * Marc-André Lureau + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + */ +#ifndef QEMU_VHOST_USER_BACKEND_H +#define QEMU_VHOST_USER_BACKEND_H + +#include "qom/object.h" +#include "exec/memory.h" +#include "qemu/option.h" +#include "qemu/bitmap.h" +#include "hw/virtio/vhost.h" +#include "hw/virtio/vhost-user.h" +#include "chardev/char-fe.h" +#include "io/channel.h" + +#define TYPE_VHOST_USER_BACKEND "vhost-user-backend" +#define VHOST_USER_BACKEND(obj) \ + OBJECT_CHECK(VhostUserBackend, (obj), TYPE_VHOST_USER_BACKEND) +#define VHOST_USER_BACKEND_GET_CLASS(obj) \ + OBJECT_GET_CLASS(VhostUserBackendClass, (obj), TYPE_VHOST_USER_BACKEND) +#define VHOST_USER_BACKEND_CLASS(klass) \ + OBJECT_CLASS_CHECK(VhostUserBackendClass, (klass), TYPE_VHOST_USER_BACKEND) + +typedef struct VhostUserBackend VhostUserBackend; +typedef struct VhostUserBackendClass VhostUserBackendClass; + +struct VhostUserBackendClass { + ObjectClass parent_class; +}; + +struct VhostUserBackend { + /* private */ + Object parent; + + char *chr_name; + CharBackend chr; + VhostUserState vhost_user; + struct vhost_dev dev; + VirtIODevice *vdev; + bool started; + bool completed; +}; + +int vhost_user_backend_dev_init(VhostUserBackend *b, VirtIODevice *vdev, + unsigned nvqs, Error **errp); +void vhost_user_backend_start(VhostUserBackend *b); +void vhost_user_backend_stop(VhostUserBackend *b); + +#endif -- cgit v1.2.3 From 9c4d05b741660958cf8769fa7ae73617fe4c67bd Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Date: Fri, 3 May 2019 15:00:32 +0200 Subject: Add vhost-user-input-pci MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add a new virtio-input device, which connects to a vhost-user backend. Instead of reading configuration directly from an input device / evdev (like virtio-input-host), it reads it over vhost-user protocol with {SET,GET}_CONFIG messages. The vhost-user-backend handles the queues & events setup. Signed-off-by: Marc-André Lureau Message-id: 20190503130034.24916-5-marcandre.lureau@redhat.com [ kraxel: drop -{non-,}transitional variants ] [ kraxel: fix "make check" on !linux ] Signed-off-by: Gerd Hoffmann --- MAINTAINERS | 1 + hw/input/Kconfig | 5 ++ hw/input/Makefile.objs | 1 + hw/input/vhost-user-input.c | 129 +++++++++++++++++++++++++++++++++++++++ hw/virtio/Makefile.objs | 1 + hw/virtio/vhost-user-input-pci.c | 50 +++++++++++++++ include/hw/virtio/virtio-input.h | 14 +++++ 7 files changed, 201 insertions(+) create mode 100644 hw/input/vhost-user-input.c create mode 100644 hw/virtio/vhost-user-input-pci.c diff --git a/MAINTAINERS b/MAINTAINERS index 2e40390ebc..6d4a10b390 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1521,6 +1521,7 @@ L: qemu-s390x@nongnu.org virtio-input M: Gerd Hoffmann S: Maintained +F: hw/input/vhost-user-input.c F: hw/input/virtio-input*.c F: include/hw/virtio/virtio-input.h diff --git a/hw/input/Kconfig b/hw/input/Kconfig index e2e66f0858..50e55e3538 100644 --- a/hw/input/Kconfig +++ b/hw/input/Kconfig @@ -29,5 +29,10 @@ config VIRTIO_INPUT_HOST default y depends on VIRTIO && LINUX +config VHOST_USER_INPUT + bool + default y + depends on VIRTIO_INPUT && VHOST_USER + config TSC210X bool diff --git a/hw/input/Makefile.objs b/hw/input/Makefile.objs index c8b00f71ec..3eddf00f2b 100644 --- a/hw/input/Makefile.objs +++ b/hw/input/Makefile.objs @@ -12,6 +12,7 @@ common-obj-$(CONFIG_VIRTIO_INPUT) += virtio-input-hid.o ifeq ($(CONFIG_LINUX),y) common-obj-$(CONFIG_VIRTIO_INPUT) += virtio-input-host.o endif +common-obj-$(CONFIG_VHOST_USER_INPUT) += vhost-user-input.o obj-$(CONFIG_MILKYMIST) += milkymist-softusb.o obj-$(CONFIG_PXA2XX) += pxa2xx_keypad.o diff --git a/hw/input/vhost-user-input.c b/hw/input/vhost-user-input.c new file mode 100644 index 0000000000..6da497b1a8 --- /dev/null +++ b/hw/input/vhost-user-input.c @@ -0,0 +1,129 @@ +/* + * This work is licensed under the terms of the GNU GPL, version 2 or + * (at your option) any later version. See the COPYING file in the + * top-level directory. + */ + +#include "qemu/osdep.h" +#include "qemu/error-report.h" +#include "qapi/error.h" +#include "qemu-common.h" + +#include "hw/qdev.h" +#include "hw/virtio/virtio-input.h" + +static int vhost_input_config_change(struct vhost_dev *dev) +{ + error_report("vhost-user-input: unhandled backend config change"); + return -1; +} + +static const VhostDevConfigOps config_ops = { + .vhost_dev_config_notifier = vhost_input_config_change, +}; + +static void vhost_input_realize(DeviceState *dev, Error **errp) +{ + VHostUserInput *vhi = VHOST_USER_INPUT(dev); + VirtIOInput *vinput = VIRTIO_INPUT(dev); + VirtIODevice *vdev = VIRTIO_DEVICE(dev); + + vhost_dev_set_config_notifier(&vhi->vhost->dev, &config_ops); + vinput->cfg_size = sizeof_field(virtio_input_config, u); + if (vhost_user_backend_dev_init(vhi->vhost, vdev, 2, errp) == -1) { + return; + } +} + +static void vhost_input_change_active(VirtIOInput *vinput) +{ + VHostUserInput *vhi = VHOST_USER_INPUT(vinput); + + if (vinput->active) { + vhost_user_backend_start(vhi->vhost); + } else { + vhost_user_backend_stop(vhi->vhost); + } +} + +static void vhost_input_get_config(VirtIODevice *vdev, uint8_t *config_data) +{ + VirtIOInput *vinput = VIRTIO_INPUT(vdev); + VHostUserInput *vhi = VHOST_USER_INPUT(vdev); + int ret; + + memset(config_data, 0, vinput->cfg_size); + + ret = vhost_dev_get_config(&vhi->vhost->dev, config_data, vinput->cfg_size); + if (ret) { + error_report("vhost-user-input: get device config space failed"); + return; + } +} + +static void vhost_input_set_config(VirtIODevice *vdev, + const uint8_t *config_data) +{ + VHostUserInput *vhi = VHOST_USER_INPUT(vdev); + int ret; + + ret = vhost_dev_set_config(&vhi->vhost->dev, config_data, + 0, sizeof(virtio_input_config), + VHOST_SET_CONFIG_TYPE_MASTER); + if (ret) { + error_report("vhost-user-input: set device config space failed"); + return; + } + + virtio_notify_config(vdev); +} + +static const VMStateDescription vmstate_vhost_input = { + .name = "vhost-user-input", + .unmigratable = 1, +}; + +static void vhost_input_class_init(ObjectClass *klass, void *data) +{ + VirtIOInputClass *vic = VIRTIO_INPUT_CLASS(klass); + VirtioDeviceClass *vdc = VIRTIO_DEVICE_CLASS(klass); + DeviceClass *dc = DEVICE_CLASS(klass); + + dc->vmsd = &vmstate_vhost_input; + vdc->get_config = vhost_input_get_config; + vdc->set_config = vhost_input_set_config; + vic->realize = vhost_input_realize; + vic->change_active = vhost_input_change_active; +} + +static void vhost_input_init(Object *obj) +{ + VHostUserInput *vhi = VHOST_USER_INPUT(obj); + + vhi->vhost = VHOST_USER_BACKEND(object_new(TYPE_VHOST_USER_BACKEND)); + object_property_add_alias(obj, "chardev", + OBJECT(vhi->vhost), "chardev", &error_abort); +} + +static void vhost_input_finalize(Object *obj) +{ + VHostUserInput *vhi = VHOST_USER_INPUT(obj); + + object_unref(OBJECT(vhi->vhost)); +} + +static const TypeInfo vhost_input_info = { + .name = TYPE_VHOST_USER_INPUT, + .parent = TYPE_VIRTIO_INPUT, + .instance_size = sizeof(VHostUserInput), + .instance_init = vhost_input_init, + .instance_finalize = vhost_input_finalize, + .class_init = vhost_input_class_init, +}; + +static void vhost_input_register_types(void) +{ + type_register_static(&vhost_input_info); +} + +type_init(vhost_input_register_types) diff --git a/hw/virtio/Makefile.objs b/hw/virtio/Makefile.objs index f2ab667a21..5570ea8df8 100644 --- a/hw/virtio/Makefile.objs +++ b/hw/virtio/Makefile.objs @@ -17,6 +17,7 @@ obj-$(CONFIG_VHOST_VSOCK) += vhost-vsock.o ifeq ($(CONFIG_VIRTIO_PCI),y) obj-$(CONFIG_VHOST_VSOCK) += vhost-vsock-pci.o obj-$(CONFIG_VHOST_USER_BLK) += vhost-user-blk-pci.o +obj-$(CONFIG_VHOST_USER_INPUT) += vhost-user-input-pci.o obj-$(CONFIG_VHOST_USER_SCSI) += vhost-user-scsi-pci.o obj-$(CONFIG_VHOST_SCSI) += vhost-scsi-pci.o obj-$(CONFIG_VIRTIO_INPUT_HOST) += virtio-input-host-pci.o diff --git a/hw/virtio/vhost-user-input-pci.c b/hw/virtio/vhost-user-input-pci.c new file mode 100644 index 0000000000..ae9cff9aed --- /dev/null +++ b/hw/virtio/vhost-user-input-pci.c @@ -0,0 +1,50 @@ +/* + * This work is licensed under the terms of the GNU LGPL, version 2 or + * later. See the COPYING.LIB file in the top-level directory. + */ + +#include "qemu/osdep.h" + +#include "hw/virtio/virtio.h" +#include "hw/virtio/virtio-input.h" +#include "qapi/error.h" +#include "qemu/error-report.h" +#include "virtio-pci.h" + +typedef struct VHostUserInputPCI VHostUserInputPCI; + +#define TYPE_VHOST_USER_INPUT_PCI "vhost-user-input-pci" + +#define VHOST_USER_INPUT_PCI(obj) \ + OBJECT_CHECK(VHostUserInputPCI, (obj), TYPE_VHOST_USER_INPUT_PCI) + +struct VHostUserInputPCI { + VirtIOPCIProxy parent_obj; + VHostUserInput vhi; +}; + +static void vhost_user_input_pci_instance_init(Object *obj) +{ + VHostUserInputPCI *dev = VHOST_USER_INPUT_PCI(obj); + + virtio_instance_init_common(obj, &dev->vhi, sizeof(dev->vhi), + TYPE_VHOST_USER_INPUT); + + object_property_add_alias(obj, "chardev", + OBJECT(&dev->vhi), "chardev", + &error_abort); +} + +static const VirtioPCIDeviceTypeInfo vhost_user_input_pci_info = { + .generic_name = TYPE_VHOST_USER_INPUT_PCI, + .parent = TYPE_VIRTIO_INPUT_PCI, + .instance_size = sizeof(VHostUserInputPCI), + .instance_init = vhost_user_input_pci_instance_init, +}; + +static void vhost_user_input_pci_register(void) +{ + virtio_pci_types_register(&vhost_user_input_pci_info); +} + +type_init(vhost_user_input_pci_register) diff --git a/include/hw/virtio/virtio-input.h b/include/hw/virtio/virtio-input.h index 054c38836f..4fca03e796 100644 --- a/include/hw/virtio/virtio-input.h +++ b/include/hw/virtio/virtio-input.h @@ -2,6 +2,7 @@ #define QEMU_VIRTIO_INPUT_H #include "ui/input.h" +#include "sysemu/vhost-user-backend.h" /* ----------------------------------------------------------------- */ /* virtio input protocol */ @@ -42,11 +43,18 @@ typedef struct virtio_input_event virtio_input_event; #define VIRTIO_INPUT_HOST_GET_PARENT_CLASS(obj) \ OBJECT_GET_PARENT_CLASS(obj, TYPE_VIRTIO_INPUT_HOST) +#define TYPE_VHOST_USER_INPUT "vhost-user-input" +#define VHOST_USER_INPUT(obj) \ + OBJECT_CHECK(VHostUserInput, (obj), TYPE_VHOST_USER_INPUT) +#define VHOST_USER_INPUT_GET_PARENT_CLASS(obj) \ + OBJECT_GET_PARENT_CLASS(obj, TYPE_VHOST_USER_INPUT) + typedef struct VirtIOInput VirtIOInput; typedef struct VirtIOInputClass VirtIOInputClass; typedef struct VirtIOInputConfig VirtIOInputConfig; typedef struct VirtIOInputHID VirtIOInputHID; typedef struct VirtIOInputHost VirtIOInputHost; +typedef struct VHostUserInput VHostUserInput; struct VirtIOInputConfig { virtio_input_config config; @@ -98,6 +106,12 @@ struct VirtIOInputHost { int fd; }; +struct VHostUserInput { + VirtIOInput parent_obj; + + VhostUserBackend *vhost; +}; + void virtio_input_send(VirtIOInput *vinput, virtio_input_event *event); void virtio_input_init_config(VirtIOInput *vinput, virtio_input_config *config); -- cgit v1.2.3 From caf88d74a7aebce5c70ac6d6d72c5b1a47eb4ecf Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Date: Fri, 3 May 2019 15:00:33 +0200 Subject: util: simplify unix_listen() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The only caller of unix_listen() left is qga/channel-posix.c. There is no need to deal with legacy coma-trailing options ",...". Signed-off-by: Marc-André Lureau Reviewed-by: Daniel P. Berrangé Message-id: 20190503130034.24916-6-marcandre.lureau@redhat.com Signed-off-by: Gerd Hoffmann --- util/qemu-sockets.c | 18 ++---------------- 1 file changed, 2 insertions(+), 16 deletions(-) diff --git a/util/qemu-sockets.c b/util/qemu-sockets.c index ba6335e71a..8850a280a8 100644 --- a/util/qemu-sockets.c +++ b/util/qemu-sockets.c @@ -970,26 +970,12 @@ static int unix_connect_saddr(UnixSocketAddress *saddr, Error **errp) /* compatibility wrapper */ int unix_listen(const char *str, Error **errp) { - char *path, *optstr; - int sock, len; UnixSocketAddress *saddr; + int sock; saddr = g_new0(UnixSocketAddress, 1); - - optstr = strchr(str, ','); - if (optstr) { - len = optstr - str; - if (len) { - path = g_malloc(len+1); - snprintf(path, len+1, "%.*s", len, str); - saddr->path = path; - } - } else { - saddr->path = g_strdup(str); - } - + saddr->path = g_strdup(str); sock = unix_listen_saddr(saddr, errp); - qapi_free_UnixSocketAddress(saddr); return sock; } -- cgit v1.2.3 From d923e30578a65392e50e530e3a29b2edf5c51c5b Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Fri, 10 May 2019 12:51:36 +0200 Subject: virtio-input-host-pci: cleanup types MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit virtio input is virtio-1.0 only, so we don't need the -transitional and -non-transitional variants. Signed-off-by: Gerd Hoffmann Reviewed-by: Marc-André Lureau Message-id: 20190510105137.17481-1-kraxel@redhat.com --- hw/virtio/virtio-input-host-pci.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/hw/virtio/virtio-input-host-pci.c b/hw/virtio/virtio-input-host-pci.c index 725a51ad30..124c4f3447 100644 --- a/hw/virtio/virtio-input-host-pci.c +++ b/hw/virtio/virtio-input-host-pci.c @@ -13,7 +13,7 @@ typedef struct VirtIOInputHostPCI VirtIOInputHostPCI; -#define TYPE_VIRTIO_INPUT_HOST_PCI "virtio-input-host-pci-base" +#define TYPE_VIRTIO_INPUT_HOST_PCI "virtio-input-host-pci" #define VIRTIO_INPUT_HOST_PCI(obj) \ OBJECT_CHECK(VirtIOInputHostPCI, (obj), TYPE_VIRTIO_INPUT_HOST_PCI) @@ -31,10 +31,7 @@ static void virtio_host_initfn(Object *obj) } static const VirtioPCIDeviceTypeInfo virtio_input_host_pci_info = { - .base_name = TYPE_VIRTIO_INPUT_HOST_PCI, - .generic_name = "virtio-input-host-pci", - .transitional_name = "virtio-input-host-pci-transitional", - .non_transitional_name = "virtio-input-host-pci-non-transitional", + .generic_name = TYPE_VIRTIO_INPUT_HOST_PCI, .parent = TYPE_VIRTIO_INPUT_PCI, .instance_size = sizeof(VirtIOInputHostPCI), .instance_init = virtio_host_initfn, -- cgit v1.2.3 From 503591cb6c28c3ddbe38ea50cab2f0dd3d6cd929 Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Fri, 10 May 2019 12:51:37 +0200 Subject: virtio-input: fix Kconfig dependency and Makefile MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Make VIRTIO_INPUT_HOST depend on VIRTIO_INPUT. Use CONFIG_VIRTIO_INPUT_HOST in Makefile. Signed-off-by: Gerd Hoffmann Reviewed-by: Marc-André Lureau Message-id: 20190510105137.17481-2-kraxel@redhat.com --- hw/input/Kconfig | 2 +- hw/input/Makefile.objs | 4 +--- 2 files changed, 2 insertions(+), 4 deletions(-) diff --git a/hw/input/Kconfig b/hw/input/Kconfig index 50e55e3538..889363d8ae 100644 --- a/hw/input/Kconfig +++ b/hw/input/Kconfig @@ -27,7 +27,7 @@ config VIRTIO_INPUT config VIRTIO_INPUT_HOST bool default y - depends on VIRTIO && LINUX + depends on VIRTIO_INPUT && LINUX config VHOST_USER_INPUT bool diff --git a/hw/input/Makefile.objs b/hw/input/Makefile.objs index 3eddf00f2b..d1de307708 100644 --- a/hw/input/Makefile.objs +++ b/hw/input/Makefile.objs @@ -9,9 +9,7 @@ common-obj-$(CONFIG_TSC2005) += tsc2005.o common-obj-$(CONFIG_VIRTIO_INPUT) += virtio-input.o common-obj-$(CONFIG_VIRTIO_INPUT) += virtio-input-hid.o -ifeq ($(CONFIG_LINUX),y) -common-obj-$(CONFIG_VIRTIO_INPUT) += virtio-input-host.o -endif +common-obj-$(CONFIG_VIRTIO_INPUT_HOST) += virtio-input-host.o common-obj-$(CONFIG_VHOST_USER_INPUT) += vhost-user-input.o obj-$(CONFIG_MILKYMIST) += milkymist-softusb.o -- cgit v1.2.3