From b6f53ae005a1c05034769beebf799e861b82d48a Mon Sep 17 00:00:00 2001 From: Milan Zamazal Date: Wed, 28 Jun 2023 12:05:24 +0200 Subject: [PATCH] tests/qtest: enable tests for virtio-scmi We don't have a virtio-scmi implementation in QEMU and only support a vhost-user backend. This is very similar to virtio-gpio and we add the same set of tests, just passing some vhost-user messages over the control socket. Signed-off-by: Milan Zamazal Acked-by: Thomas Huth Message-Id: <20230628100524.342666-4-mzamazal@redhat.com> Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- MAINTAINERS | 1 + tests/qtest/libqos/meson.build | 1 + tests/qtest/libqos/virtio-scmi.c | 174 +++++++++++++++++++++++++++++++++++++++ tests/qtest/libqos/virtio-scmi.h | 34 ++++++++ tests/qtest/vhost-user-test.c | 44 ++++++++++ 5 files changed, 254 insertions(+) create mode 100644 tests/qtest/libqos/virtio-scmi.c create mode 100644 tests/qtest/libqos/virtio-scmi.h diff --git a/MAINTAINERS b/MAINTAINERS index 504dddb7dd..8f642141d0 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2222,6 +2222,7 @@ R: mzamazal@redhat.com S: Supported F: hw/virtio/vhost-user-scmi* F: include/hw/virtio/vhost-user-scmi.h +F: tests/qtest/libqos/virtio-scmi.* virtio-crypto M: Gonglei diff --git a/tests/qtest/libqos/meson.build b/tests/qtest/libqos/meson.build index cc209a8de5..90aae42a22 100644 --- a/tests/qtest/libqos/meson.build +++ b/tests/qtest/libqos/meson.build @@ -46,6 +46,7 @@ libqos_srcs = files( 'virtio-serial.c', 'virtio-iommu.c', 'virtio-gpio.c', + 'virtio-scmi.c', 'generic-pcihost.c', # qgraph machines: diff --git a/tests/qtest/libqos/virtio-scmi.c b/tests/qtest/libqos/virtio-scmi.c new file mode 100644 index 0000000000..ce8f4d5c06 --- /dev/null +++ b/tests/qtest/libqos/virtio-scmi.c @@ -0,0 +1,174 @@ +/* + * virtio-scmi nodes for testing + * + * SPDX-FileCopyrightText: Linaro Ltd + * SPDX-FileCopyrightText: Red Hat, Inc. + * SPDX-License-Identifier: GPL-2.0-or-later + * + * Based on virtio-gpio.c, doing basically the same thing. + */ + +#include "qemu/osdep.h" +#include "standard-headers/linux/virtio_config.h" +#include "../libqtest.h" +#include "qemu/module.h" +#include "qgraph.h" +#include "virtio-scmi.h" + +static QGuestAllocator *alloc; + +static void virtio_scmi_cleanup(QVhostUserSCMI *scmi) +{ + QVirtioDevice *vdev = scmi->vdev; + int i; + + for (i = 0; i < 2; i++) { + qvirtqueue_cleanup(vdev->bus, scmi->queues[i], alloc); + } + g_free(scmi->queues); +} + +/* + * This handles the VirtIO setup from the point of view of the driver + * frontend and therefore doesn't present any vhost specific features + * and in fact masks of the re-used bit. + */ +static void virtio_scmi_setup(QVhostUserSCMI *scmi) +{ + QVirtioDevice *vdev = scmi->vdev; + uint64_t features; + int i; + + features = qvirtio_get_features(vdev); + features &= ~QVIRTIO_F_BAD_FEATURE; + qvirtio_set_features(vdev, features); + + scmi->queues = g_new(QVirtQueue *, 2); + for (i = 0; i < 2; i++) { + scmi->queues[i] = qvirtqueue_setup(vdev, alloc, i); + } + qvirtio_set_driver_ok(vdev); +} + +static void *qvirtio_scmi_get_driver(QVhostUserSCMI *v_scmi, + const char *interface) +{ + if (!g_strcmp0(interface, "vhost-user-scmi")) { + return v_scmi; + } + if (!g_strcmp0(interface, "virtio")) { + return v_scmi->vdev; + } + + g_assert_not_reached(); +} + +static void *qvirtio_scmi_device_get_driver(void *object, + const char *interface) +{ + QVhostUserSCMIDevice *v_scmi = object; + return qvirtio_scmi_get_driver(&v_scmi->scmi, interface); +} + +/* virtio-scmi (mmio) */ +static void qvirtio_scmi_device_destructor(QOSGraphObject *obj) +{ + QVhostUserSCMIDevice *scmi_dev = (QVhostUserSCMIDevice *) obj; + virtio_scmi_cleanup(&scmi_dev->scmi); +} + +static void qvirtio_scmi_device_start_hw(QOSGraphObject *obj) +{ + QVhostUserSCMIDevice *scmi_dev = (QVhostUserSCMIDevice *) obj; + virtio_scmi_setup(&scmi_dev->scmi); +} + +static void *virtio_scmi_device_create(void *virtio_dev, + QGuestAllocator *t_alloc, + void *addr) +{ + QVhostUserSCMIDevice *virtio_device = g_new0(QVhostUserSCMIDevice, 1); + QVhostUserSCMI *interface = &virtio_device->scmi; + + interface->vdev = virtio_dev; + alloc = t_alloc; + + virtio_device->obj.get_driver = qvirtio_scmi_device_get_driver; + virtio_device->obj.start_hw = qvirtio_scmi_device_start_hw; + virtio_device->obj.destructor = qvirtio_scmi_device_destructor; + + return &virtio_device->obj; +} + +/* virtio-scmi-pci */ +static void qvirtio_scmi_pci_destructor(QOSGraphObject *obj) +{ + QVhostUserSCMIPCI *scmi_pci = (QVhostUserSCMIPCI *) obj; + QOSGraphObject *pci_vobj = &scmi_pci->pci_vdev.obj; + + virtio_scmi_cleanup(&scmi_pci->scmi); + qvirtio_pci_destructor(pci_vobj); +} + +static void qvirtio_scmi_pci_start_hw(QOSGraphObject *obj) +{ + QVhostUserSCMIPCI *scmi_pci = (QVhostUserSCMIPCI *) obj; + QOSGraphObject *pci_vobj = &scmi_pci->pci_vdev.obj; + + qvirtio_pci_start_hw(pci_vobj); + virtio_scmi_setup(&scmi_pci->scmi); +} + +static void *qvirtio_scmi_pci_get_driver(void *object, const char *interface) +{ + QVhostUserSCMIPCI *v_scmi = object; + + if (!g_strcmp0(interface, "pci-device")) { + return v_scmi->pci_vdev.pdev; + } + return qvirtio_scmi_get_driver(&v_scmi->scmi, interface); +} + +static void *virtio_scmi_pci_create(void *pci_bus, QGuestAllocator *t_alloc, + void *addr) +{ + QVhostUserSCMIPCI *virtio_spci = g_new0(QVhostUserSCMIPCI, 1); + QVhostUserSCMI *interface = &virtio_spci->scmi; + 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_scmi_pci_get_driver; + obj->start_hw = qvirtio_scmi_pci_start_hw; + obj->destructor = qvirtio_scmi_pci_destructor; + + return obj; +} + +static void virtio_scmi_register_nodes(void) +{ + QPCIAddress addr = { + .devfn = QPCI_DEVFN(4, 0), + }; + + QOSGraphEdgeOptions edge_opts = { }; + + /* vhost-user-scmi-device */ + edge_opts.extra_device_opts = "id=scmi,chardev=chr-vhost-user-test " + "-global virtio-mmio.force-legacy=false"; + qos_node_create_driver("vhost-user-scmi-device", + virtio_scmi_device_create); + qos_node_consumes("vhost-user-scmi-device", "virtio-bus", &edge_opts); + qos_node_produces("vhost-user-scmi-device", "vhost-user-scmi"); + + /* virtio-scmi-pci */ + edge_opts.extra_device_opts = "id=scmi,addr=04.0,chardev=chr-vhost-user-test"; + add_qpci_address(&edge_opts, &addr); + qos_node_create_driver("vhost-user-scmi-pci", virtio_scmi_pci_create); + qos_node_consumes("vhost-user-scmi-pci", "pci-bus", &edge_opts); + qos_node_produces("vhost-user-scmi-pci", "vhost-user-scmi"); +} + +libqos_init(virtio_scmi_register_nodes); diff --git a/tests/qtest/libqos/virtio-scmi.h b/tests/qtest/libqos/virtio-scmi.h new file mode 100644 index 0000000000..cb5670da6e --- /dev/null +++ b/tests/qtest/libqos/virtio-scmi.h @@ -0,0 +1,34 @@ +/* + * virtio-scmi structures + * + * SPDX-FileCopyrightText: Red Hat, Inc. + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#ifndef TESTS_LIBQOS_VIRTIO_SCMI_H +#define TESTS_LIBQOS_VIRTIO_SCMI_H + +#include "qgraph.h" +#include "virtio.h" +#include "virtio-pci.h" + +typedef struct QVhostUserSCMI QVhostUserSCMI; +typedef struct QVhostUserSCMIPCI QVhostUserSCMIPCI; +typedef struct QVhostUserSCMIDevice QVhostUserSCMIDevice; + +struct QVhostUserSCMI { + QVirtioDevice *vdev; + QVirtQueue **queues; +}; + +struct QVhostUserSCMIPCI { + QVirtioPCIDevice pci_vdev; + QVhostUserSCMI scmi; +}; + +struct QVhostUserSCMIDevice { + QOSGraphObject obj; + QVhostUserSCMI scmi; +}; + +#endif diff --git a/tests/qtest/vhost-user-test.c b/tests/qtest/vhost-user-test.c index dfb8003597..d4e437265f 100644 --- a/tests/qtest/vhost-user-test.c +++ b/tests/qtest/vhost-user-test.c @@ -33,6 +33,7 @@ #include "standard-headers/linux/virtio_ids.h" #include "standard-headers/linux/virtio_net.h" #include "standard-headers/linux/virtio_gpio.h" +#include "standard-headers/linux/virtio_scmi.h" #ifdef CONFIG_LINUX #include @@ -145,6 +146,7 @@ enum { enum { VHOST_USER_NET, VHOST_USER_GPIO, + VHOST_USER_SCMI, }; typedef struct TestServer { @@ -1157,3 +1159,45 @@ static void register_vhost_gpio_test(void) "vhost-user-gpio", test_read_guest_mem, &opts); } libqos_init(register_vhost_gpio_test); + +static uint64_t vu_scmi_get_features(TestServer *s) +{ + return 0x1ULL << VIRTIO_F_VERSION_1 | + 0x1ULL << VIRTIO_SCMI_F_P2A_CHANNELS | + 0x1ULL << VHOST_USER_F_PROTOCOL_FEATURES; +} + +static void vu_scmi_get_protocol_features(TestServer *s, CharBackend *chr, + VhostUserMsg *msg) +{ + msg->flags |= VHOST_USER_REPLY_MASK; + msg->size = sizeof(m.payload.u64); + msg->payload.u64 = 1ULL << VHOST_USER_PROTOCOL_F_MQ; + + qemu_chr_fe_write_all(chr, (uint8_t *)msg, VHOST_USER_HDR_SIZE + msg->size); +} + +static struct vhost_user_ops g_vu_scmi_ops = { + .type = VHOST_USER_SCMI, + + .append_opts = append_vhost_gpio_opts, + + .get_features = vu_scmi_get_features, + .set_features = vu_net_set_features, + .get_protocol_features = vu_scmi_get_protocol_features, +}; + +static void register_vhost_scmi_test(void) +{ + QOSGraphTestOptions opts = { + .before = vhost_user_test_setup, + .subprocess = true, + .arg = &g_vu_scmi_ops, + }; + + qemu_add_opts(&qemu_chardev_opts); + + qos_add_test("scmi/read-guest-mem/memfile", + "vhost-user-scmi", test_read_guest_mem, &opts); +} +libqos_init(register_vhost_scmi_test); -- 2.11.0