diff options
author | Alex Bennée <alex.bennee@linaro.org> | 2022-08-02 10:50:10 +0100 |
---|---|---|
committer | Michael S. Tsirkin <mst@redhat.com> | 2022-10-07 09:41:51 -0400 |
commit | 8fcfc8235e43649cd4045c815abdaac078cff9c2 (patch) | |
tree | faeb2fe544514fad8a16b4294ba22ded1b83aadd /tests/qtest/libqos | |
parent | 19d55a19a4b9151f15eb5e2b5d0610aa2a738c7c (diff) |
tests/qtest: enable tests for virtio-gpio
We don't have a virtio-gpio implementation in QEMU and only
support a vhost-user backend. The QEMU side of the code is minimal so
it should be enough to instantiate the device and pass some vhost-user
messages over the control socket. To do this we hook into the existing
vhost-user-test code and just add the bits required for gpio.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Eric Auger <eric.auger@redhat.com>
Message-Id: <20220408155704.2777166-1-alex.bennee@linaro.org>
Message-Id: <20220802095010.3330793-23-alex.bennee@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'tests/qtest/libqos')
-rw-r--r-- | tests/qtest/libqos/meson.build | 1 | ||||
-rw-r--r-- | tests/qtest/libqos/virtio-gpio.c | 171 | ||||
-rw-r--r-- | tests/qtest/libqos/virtio-gpio.h | 35 | ||||
-rw-r--r-- | tests/qtest/libqos/virtio.c | 2 |
4 files changed, 208 insertions, 1 deletions
diff --git a/tests/qtest/libqos/meson.build b/tests/qtest/libqos/meson.build index cff83c86d9..a5b6d5197a 100644 --- a/tests/qtest/libqos/meson.build +++ b/tests/qtest/libqos/meson.build @@ -45,6 +45,7 @@ libqos_srcs = files( 'virtio-scsi.c', 'virtio-serial.c', 'virtio-iommu.c', + 'virtio-gpio.c', 'generic-pcihost.c', # qgraph machines: diff --git a/tests/qtest/libqos/virtio-gpio.c b/tests/qtest/libqos/virtio-gpio.c new file mode 100644 index 0000000000..762aa6695b --- /dev/null +++ b/tests/qtest/libqos/virtio-gpio.c @@ -0,0 +1,171 @@ +/* + * virtio-gpio nodes for testing + * + * Copyright (c) 2022 Linaro Ltd + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#include "qemu/osdep.h" +#include "standard-headers/linux/virtio_config.h" +#include "../libqtest.h" +#include "qemu/module.h" +#include "qgraph.h" +#include "virtio-gpio.h" + +static QGuestAllocator *alloc; + +static void virtio_gpio_cleanup(QVhostUserGPIO *gpio) +{ + QVirtioDevice *vdev = gpio->vdev; + int i; + + for (i = 0; i < 2; i++) { + qvirtqueue_cleanup(vdev->bus, gpio->queues[i], alloc); + } + g_free(gpio->queues); +} + +/* + * This handles the VirtIO setup from the point of view of the driver + * frontend and therefor doesn't present any vhost specific features + * and in fact masks of the re-used bit. + */ +static void virtio_gpio_setup(QVhostUserGPIO *gpio) +{ + QVirtioDevice *vdev = gpio->vdev; + uint64_t features; + int i; + + features = qvirtio_get_features(vdev); + features &= ~QVIRTIO_F_BAD_FEATURE; + qvirtio_set_features(vdev, features); + + gpio->queues = g_new(QVirtQueue *, 2); + for (i = 0; i < 2; i++) { + gpio->queues[i] = qvirtqueue_setup(vdev, alloc, i); + } + qvirtio_set_driver_ok(vdev); +} + +static void *qvirtio_gpio_get_driver(QVhostUserGPIO *v_gpio, + const char *interface) +{ + if (!g_strcmp0(interface, "vhost-user-gpio")) { + return v_gpio; + } + if (!g_strcmp0(interface, "virtio")) { + return v_gpio->vdev; + } + + g_assert_not_reached(); +} + +static void *qvirtio_gpio_device_get_driver(void *object, + const char *interface) +{ + QVhostUserGPIODevice *v_gpio = object; + return qvirtio_gpio_get_driver(&v_gpio->gpio, interface); +} + +/* virtio-gpio (mmio) */ +static void qvirtio_gpio_device_destructor(QOSGraphObject *obj) +{ + QVhostUserGPIODevice *gpio_dev = (QVhostUserGPIODevice *) obj; + virtio_gpio_cleanup(&gpio_dev->gpio); +} + +static void qvirtio_gpio_device_start_hw(QOSGraphObject *obj) +{ + QVhostUserGPIODevice *gpio_dev = (QVhostUserGPIODevice *) obj; + virtio_gpio_setup(&gpio_dev->gpio); +} + +static void *virtio_gpio_device_create(void *virtio_dev, + QGuestAllocator *t_alloc, + void *addr) +{ + QVhostUserGPIODevice *virtio_device = g_new0(QVhostUserGPIODevice, 1); + QVhostUserGPIO *interface = &virtio_device->gpio; + + interface->vdev = virtio_dev; + alloc = t_alloc; + + virtio_device->obj.get_driver = qvirtio_gpio_device_get_driver; + virtio_device->obj.start_hw = qvirtio_gpio_device_start_hw; + virtio_device->obj.destructor = qvirtio_gpio_device_destructor; + + return &virtio_device->obj; +} + +/* virtio-gpio-pci */ +static void qvirtio_gpio_pci_destructor(QOSGraphObject *obj) +{ + QVhostUserGPIOPCI *gpio_pci = (QVhostUserGPIOPCI *) obj; + QOSGraphObject *pci_vobj = &gpio_pci->pci_vdev.obj; + + virtio_gpio_cleanup(&gpio_pci->gpio); + qvirtio_pci_destructor(pci_vobj); +} + +static void qvirtio_gpio_pci_start_hw(QOSGraphObject *obj) +{ + QVhostUserGPIOPCI *gpio_pci = (QVhostUserGPIOPCI *) obj; + QOSGraphObject *pci_vobj = &gpio_pci->pci_vdev.obj; + + qvirtio_pci_start_hw(pci_vobj); + virtio_gpio_setup(&gpio_pci->gpio); +} + +static void *qvirtio_gpio_pci_get_driver(void *object, const char *interface) +{ + QVhostUserGPIOPCI *v_gpio = object; + + if (!g_strcmp0(interface, "pci-device")) { + return v_gpio->pci_vdev.pdev; + } + return qvirtio_gpio_get_driver(&v_gpio->gpio, interface); +} + +static void *virtio_gpio_pci_create(void *pci_bus, QGuestAllocator *t_alloc, + void *addr) +{ + QVhostUserGPIOPCI *virtio_spci = g_new0(QVhostUserGPIOPCI, 1); + QVhostUserGPIO *interface = &virtio_spci->gpio; + QOSGraphObject *obj = &virtio_spci->pci_vdev.obj; + + virtio_pci_init(&virtio_spci->pci_vdev, pci_bus, addr); + interface->vdev = &virtio_spci->pci_vdev.vdev; + alloc = t_alloc; + + obj->get_driver = qvirtio_gpio_pci_get_driver; + obj->start_hw = qvirtio_gpio_pci_start_hw; + obj->destructor = qvirtio_gpio_pci_destructor; + + return obj; +} + +static void virtio_gpio_register_nodes(void) +{ + QPCIAddress addr = { + .devfn = QPCI_DEVFN(4, 0), + }; + + QOSGraphEdgeOptions edge_opts = { }; + + /* vhost-user-gpio-device */ + edge_opts.extra_device_opts = "id=gpio0,chardev=chr-vhost-user-test"; + qos_node_create_driver("vhost-user-gpio-device", + virtio_gpio_device_create); + qos_node_consumes("vhost-user-gpio-device", "virtio-bus", &edge_opts); + qos_node_produces("vhost-user-gpio-device", "vhost-user-gpio"); + + /* virtio-gpio-pci */ + edge_opts.extra_device_opts = "id=gpio0,addr=04.0,chardev=chr-vhost-user-test"; + add_qpci_address(&edge_opts, &addr); + qos_node_create_driver("vhost-user-gpio-pci", virtio_gpio_pci_create); + qos_node_consumes("vhost-user-gpio-pci", "pci-bus", &edge_opts); + qos_node_produces("vhost-user-gpio-pci", "vhost-user-gpio"); +} + +libqos_init(virtio_gpio_register_nodes); diff --git a/tests/qtest/libqos/virtio-gpio.h b/tests/qtest/libqos/virtio-gpio.h new file mode 100644 index 0000000000..f11d41bd19 --- /dev/null +++ b/tests/qtest/libqos/virtio-gpio.h @@ -0,0 +1,35 @@ +/* + * virtio-gpio structures + * + * Copyright (c) 2022 Linaro Ltd + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#ifndef TESTS_LIBQOS_VIRTIO_GPIO_H +#define TESTS_LIBQOS_VIRTIO_GPIO_H + +#include "qgraph.h" +#include "virtio.h" +#include "virtio-pci.h" + +typedef struct QVhostUserGPIO QVhostUserGPIO; +typedef struct QVhostUserGPIOPCI QVhostUserGPIOPCI; +typedef struct QVhostUserGPIODevice QVhostUserGPIODevice; + +struct QVhostUserGPIO { + QVirtioDevice *vdev; + QVirtQueue **queues; +}; + +struct QVhostUserGPIOPCI { + QVirtioPCIDevice pci_vdev; + QVhostUserGPIO gpio; +}; + +struct QVhostUserGPIODevice { + QOSGraphObject obj; + QVhostUserGPIO gpio; +}; + +#endif diff --git a/tests/qtest/libqos/virtio.c b/tests/qtest/libqos/virtio.c index 03056e5187..410513225f 100644 --- a/tests/qtest/libqos/virtio.c +++ b/tests/qtest/libqos/virtio.c @@ -110,7 +110,7 @@ void qvirtio_set_features(QVirtioDevice *d, uint64_t features) * This could be a separate function for drivers that want to access * configuration space before setting FEATURES_OK, but no existing users * need that and it's less code for callers if this is done implicitly. - */ + */ if (features & (1ull << VIRTIO_F_VERSION_1)) { uint8_t status = d->bus->get_status(d) | VIRTIO_CONFIG_S_FEATURES_OK; 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