/* * QTest testcase for VirtIO Block Device * * Copyright (c) 2014 SUSE LINUX Products GmbH * Copyright (c) 2014 Marc MarĂ * * 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 <glib.h> #include <string.h> #include <stdlib.h> #include <unistd.h> #include <stdio.h> #include "libqtest.h" #include "libqos/virtio.h" #include "libqos/virtio-pci.h" #include "libqos/pci-pc.h" #include "libqos/malloc.h" #include "libqos/malloc-pc.h" #include "qemu/bswap.h" #define QVIRTIO_BLK_F_BARRIER 0x00000001 #define QVIRTIO_BLK_F_SIZE_MAX 0x00000002 #define QVIRTIO_BLK_F_SEG_MAX 0x00000004 #define QVIRTIO_BLK_F_GEOMETRY 0x00000010 #define QVIRTIO_BLK_F_RO 0x00000020 #define QVIRTIO_BLK_F_BLK_SIZE 0x00000040 #define QVIRTIO_BLK_F_SCSI 0x00000080 #define QVIRTIO_BLK_F_WCE 0x00000200 #define QVIRTIO_BLK_F_TOPOLOGY 0x00000400 #define QVIRTIO_BLK_F_CONFIG_WCE 0x00000800 #define QVIRTIO_BLK_T_IN 0 #define QVIRTIO_BLK_T_OUT 1 #define QVIRTIO_BLK_T_SCSI_CMD 2 #define QVIRTIO_BLK_T_SCSI_CMD_OUT 3 #define QVIRTIO_BLK_T_FLUSH 4 #define QVIRTIO_BLK_T_FLUSH_OUT 5 #define QVIRTIO_BLK_T_GET_ID 8 #define TEST_IMAGE_SIZE (64 * 1024 * 1024) #define QVIRTIO_BLK_TIMEOUT_US (30 * 1000 * 1000) #define PCI_SLOT 0x04 #define PCI_FN 0x00 #define PCI_SLOT_HP 0x06 typedef struct QVirtioBlkReq { uint32_t type; uint32_t ioprio; uint64_t sector; char *data; uint8_t status; } QVirtioBlkReq; static QPCIBus *test_start(void) { char *cmdline; char tmp_path[] = "/tmp/qtest.XXXXXX"; int fd, ret; /* Create a temporary raw image */ fd = mkstemp(tmp_path); g_assert_cmpint(fd, >=, 0); ret = ftruncate(fd, TEST_IMAGE_SIZE); g_assert_cmpint(ret, ==, 0); close(fd); cmdline = g_strdup_printf("-drive if=none,id=drive0,file=%s,format=raw " "-drive if=none,id=drive1,file=/dev/null,format=raw " "-device virtio-blk-pci,id=drv0,drive=drive0," "addr=%x.%x", tmp_path, PCI_SLOT, PCI_FN); qtest_start(cmdline); unlink(tmp_path); g_free(cmdline); return qpci_init_pc(); } static void test_end(void) { qtest_end(); } static QVirtioPCIDevice *virtio_blk_init(QPCIBus *bus, int slot) { QVirtioPCIDevice *dev; dev = qvirtio_pci_device_find(bus, QVIRTIO_BLK_DEVICE_ID); g_assert(dev != NULL); g_assert_cmphex(dev->vdev.device_type, ==, QVIRTIO_BLK_DEVICE_ID); g_assert_cmphex(dev->pdev->devfn, ==, ((slot << 3) | PCI_FN)); qvirtio_pci_device_enable(dev); qvirtio_reset(&qvirtio_pci, &dev->vdev); qvirtio_set_acknowledge(&qvirtio_pci, &dev->vdev); qvirtio_set_driver(&qvirtio_pci, &dev->vdev); return dev; } static inline void virtio_blk_fix_request(QVirtioBlkReq *req) { #ifdef HOST_WORDS_BIGENDIAN bool host_endian = true; #else bool host_endian = false; #endif if (qtest_big_endian() != host_endian) { req->type = bswap32(req->type); req->ioprio = bswap32(req->ioprio); req->sector = bswap64(req->sector); } } static uint64_t virtio_blk_request(QGuestAllocator *alloc, QVirtioBlkReq *req, uint64_t data_size) { uint64_t addr; uint8_t status = 0xFF; g_assert_cmpuint(data_size % 512, ==, 0); addr = guest_alloc(alloc, sizeof(*req) + data_size); virtio_blk_fix_request(req); memwrite(addr, req, 16); memwrite(addr + 16, req->data, data_size); memwrite(addr + 16 + data_size, &status, sizeof(status)); return addr; } static void pci_basic(void) { QVirtioPCIDevice *dev; QPCIBus *bus; QVirtQueuePCI *vqpci; QGuestAllocator *alloc; QVirtioBlkReq req; void *addr; uint64_t req_addr; uint64_t capacity; uint32_t features; uint32_t free_head; uint8_t status; char *data; bus = test_start(); dev = virtio_blk_init(bus, PCI_SLOT); /* MSI-X is not enabled */ addr = dev->addr + QVIRTIO_DEVICE_SPECIFIC_NO_MSIX; capacity = qvirtio_config_readq(&qvirtio_pci, &dev->vdev, addr); g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512); features = qvirtio_get_features(&qvirtio_pci, &dev->vdev); features = features & ~(QVIRTIO_F_BAD_FEATURE | QVIRTIO_F_RING_INDIRECT_DESC | QVIRTIO_F_RING_EVENT_IDX | QVIRTIO_BLK_F_SCSI); qvirtio_set_features(&qvirtio_pci, &dev->vdev, features); alloc = pc_alloc_init(); vqpci = (QVirtQueuePCI *)qvirtqueue_setup(&qvirtio_pci, &dev->vdev, alloc, 0); qvirtio_set_driver_ok(&qvirtio_pci, &dev->vdev); /* Write and read with 2 descriptor layout */ /* Write request */ req.type = QVIRTIO_BLK_T_OUT; req.ioprio = 1; req.sector = 0; req.data = g_malloc0(512); strcpy(req.data, "TEST"); req_addr = virtio_blk_request(alloc, &req, 512); g_free(req.data); free_head = qvirtqueue_add(&vqpci->vq, req_addr, 528, false, true); qvirtqueue_add(&vqpci->vq, req_addr + 528, 1, true, false); qvirtqueue_kick(&qvirtio_pci, &dev->vdev, &vqpci->vq, free_head); qvirtio_wait_queue_isr(&qvirtio_pci, &dev->vdev, &vqpci->vq, QVIRTIO_BLK_TIMEOUT_US); status = readb(req_addr + 528); g_assert_cmpint(status, ==, 0); guest_free(alloc, req_addr); /* Read request */ req.type = QVIRTIO_BLK_T_IN; req.ioprio = 1; req.sector = 0; req.data = g_malloc0(512); req_addr = virtio_blk_request(alloc, &req, 512); g_free(req.data); free_head = qvirtqueue_add(&vqpci->vq, req_addr, 16, false, true); qvirtqueue_add(&vqpci->vq, req_addr + 16, 513, true, false); qvirtqueue_kick(&qvirtio_pci, &dev->vdev, &vqpci->vq, free_head); qvirtio_wait_queue_isr(&qvirtio_pci, &dev->vdev, &vqpci->vq, QVIRTIO_BLK_TIMEOUT_US); status = readb(req_addr + 528); g_assert_cmpint(status, ==, 0); data = g_malloc0(512); memread(req_addr + 16, data, 512); g_assert_cmpstr(data, ==, "TEST"); g_free(data); guest_free(alloc, req_addr); /* Write and read with 3 descriptor layout */ /* Write request */ req.type = QVIRTIO_BLK_T_OUT; req.ioprio = 1; req.sector = 1; req.data = g_malloc0(512); strcpy(req.data, "TEST"); req_addr = virtio_blk_request(alloc, &req, 512); free_head = qvirtqueue_add(&vqpci->vq, req_addr, 16, false, true); qvirtqueue_add(&vqpci->vq, req_addr + 16, 512, false, true); qvirtqueue_add(&vqpci->vq, req_addr + 528, 1, true, false); qvirtqueue_kick(&qvirtio_pci, &dev->vdev, &vqpci->vq, free_head); qvirtio_wait_queue_isr(&qvirtio_pci, &dev->vdev, &vqpci->vq, QVIRTIO_BLK_TIMEOUT_US); status = readb(req_addr + 528); g_assert_cmpint(status, ==, 0); guest_free(alloc, req_addr); /* Read request */ req.type = QVIRTIO_BLK_T_IN; req.ioprio = 1; req.sector = 1; req.data = g_malloc0(512); req_addr = virtio_blk_request(alloc, &req, 512); g_free(req.data); free_head = qvirtqueue_add(&vqpci->vq, req_addr, 16, false, true); qvirtqueue_add(&vqpci->vq, req_addr + 16, 512, true, true); qvirtqueue_add(&vqpci->vq, req_addr + 528, 1, true, false); qvirtqueue_kick(&qvirtio_pci, &dev->vdev, &vqpci->vq, free_head); qvirtio_wait_queue_isr(&qvirtio_pci, &dev->vdev, &vqpci->vq, QVIRTIO_BLK_TIMEOUT_US); status = readb(req_addr + 528); g_assert_cmpint(status, ==, 0); data = g_malloc0(512); memread(req_addr + 16, data, 512); g_assert_cmpstr(data, ==, "TEST"); g_free(data); guest_free(alloc, req_addr); /* End test */ guest_free(alloc, vqpci->vq.desc); qvirtio_pci_device_disable(dev); g_free(dev); test_end(); } static void pci_indirect(void) { QVirtioPCIDevice *dev; QPCIBus *bus; QVirtQueuePCI *vqpci; QGuestAllocator *alloc; QVirtioBlkReq req; QVRingIndirectDesc *indirect; void *addr; uint64_t req_addr; uint64_t capacity; uint32_t features; uint32_t free_head; uint8_t status; char *data; bus = test_start(); dev = virtio_blk_init(bus, PCI_SLOT); /* MSI-X is not enabled */ addr = dev->addr + QVIRTIO_DEVICE_SPECIFIC_NO_MSIX; capacity = qvirtio_config_readq(&qvirtio_pci, &dev->vdev, addr); g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512); features = qvirtio_get_features(&qvirtio_pci, &dev->vdev); g_assert_cmphex(features & QVIRTIO_F_RING_INDIRECT_DESC, !=, 0); features = features & ~(QVIRTIO_F_BAD_FEATURE | QVIRTIO_F_RING_EVENT_IDX | QVIRTIO_BLK_F_SCSI); qvirtio_set_features(&qvirtio_pci, &dev->vdev, features); alloc = pc_alloc_init(); vqpci = (QVirtQueuePCI *)qvirtqueue_setup(&qvirtio_pci, &dev->vdev, alloc, 0); qvirtio_set_driver_ok(&qvirtio_pci, &dev->vdev); /* Write request */ req.type = QVIRTIO_BLK_T_OUT; req.ioprio = 1; req.sector = 0; req.data = g_malloc0(512); strcpy(req.data, "TEST"); req_addr = virtio_blk_request(alloc, &req, 512); g_free(req.data); indirect = qvring_indirect_desc_setup(&dev->vdev, alloc, 2); qvring_indirect_desc_add(indirect, req_addr, 528, false); qvring_indirect_desc_add(indirect, req_addr + 528, 1, true); free_head = qvirtqueue_add_indirect(&vqpci->vq, indirect); qvirtqueue_kick(&qvirtio_pci, &dev->vdev, &vqpci->vq, free_head); qvirtio_wait_queue_isr(&qvirtio_pci, &dev->vdev, &vqpci->vq, QVIRTIO_BLK_TIMEOUT_US); status = readb(req_addr + 528); g_assert_cmpint(status, ==, 0); g_free(indirect); guest_free(alloc, req_addr); /* Read request */ req.type = QVIRTIO_BLK_T_IN; req.ioprio = 1; req.sector = 0; req.data = g_malloc0(512); strcpy(req.data, "TEST"); req_addr = virtio_blk_request(alloc, &req, 512); g_free(req.data); indirect = qvring_indirect_desc_setup(&dev->vdev, alloc, 2); qvring_indirect_desc_add(indirect, req_addr, 16, false); qvring_indirect_desc_add(indirect, req_addr + 16, 513, true); free_head = qvirtqueue_add_indirect(&vqpci->vq, indirect); qvirtqueue_kick(&qvirtio_pci, &dev->vdev, &vqpci->vq, free_head); qvirtio_wait_queue_isr(&qvirtio_pci, &dev->vdev, &vqpci->vq, QVIRTIO_BLK_TIMEOUT_US); status = readb(req_addr + 528); g_assert_cmpint(status, ==, 0); data = g_malloc0(512); memread(req_addr + 16, data, 512); g_assert_cmpstr(data, ==, "TEST"); g_free(data); g_free(indirect); guest_free(alloc, req_addr); /* End test */ guest_free(alloc, vqpci->vq.desc); qvirtio_pci_device_disable(dev); g_free(dev); test_end(); } static void pci_config(void) { QVirtioPCIDevice *dev; QPCIBus *bus; int n_size = TEST_IMAGE_SIZE / 2; void *addr; uint64_t capacity; bus = test_start(); dev = virtio_blk_init(bus, PCI_SLOT); /* MSI-X is not enabled */ addr = dev->addr + QVIRTIO_DEVICE_SPECIFIC_NO_MSIX; capacity = qvirtio_config_readq(&qvirtio_pci, &dev->vdev, addr); g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512); qvirtio_set_driver_ok(&qvirtio_pci, &dev->vdev); qmp("{ 'execute': 'block_resize', 'arguments': { 'device': 'drive0', " " 'size': %d } }", n_size); qvirtio_wait_config_isr(&qvirtio_pci, &dev->vdev, QVIRTIO_BLK_TIMEOUT_US); capacity = qvirtio_config_readq(&qvirtio_pci, &dev->vdev, addr); g_assert_cmpint(capacity, ==, n_size / 512); qvirtio_pci_device_disable(dev); g_free(dev); test_end(); } static void pci_msix(void) { QVirtioPCIDevice *dev; QPCIBus *bus; QVirtQueuePCI *vqpci; QGuestAllocator *alloc; QVirtioBlkReq req; int n_size = TEST_IMAGE_SIZE / 2; void *addr; uint64_t req_addr; uint64_t capacity; uint32_t features; uint32_t free_head; uint8_t status; char *data; bus = test_start(); alloc = pc_alloc_init(); dev = virtio_blk_init(bus, PCI_SLOT); qpci_msix_enable(dev->pdev); qvirtio_pci_set_msix_configuration_vector(dev, alloc, 0); /* MSI-X is enabled */ addr = dev->addr + QVIRTIO_DEVICE_SPECIFIC_MSIX; capacity = qvirtio_config_readq(&qvirtio_pci, &dev->vdev, addr); g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512); features = qvirtio_get_features(&qvirtio_pci, &dev->vdev); features = features & ~(QVIRTIO_F_BAD_FEATURE | QVIRTIO_F_RING_INDIRECT_DESC | QVIRTIO_F_RING_EVENT_IDX | QVIRTIO_BLK_F_SCSI); qvirtio_set_features(&qvirtio_pci, &dev->vdev, features); vqpci = (QVirtQueuePCI *)qvirtqueue_setup(&qvirtio_pci, &dev->vdev, alloc, 0); qvirtqueue_pci_msix_setup(dev, vqpci, alloc, 1); qvirtio_set_driver_ok(&qvirtio_pci, &dev->vdev); qmp("{ 'execute': 'block_resize', 'arguments': { 'device': 'drive0', " " 'size': %d } }", n_size); qvirtio_wait_config_isr(&qvirtio_pci, &dev->vdev, QVIRTIO_BLK_TIMEOUT_US); capacity = qvirtio_config_readq(&qvirtio_pci, &dev->vdev, addr); g_assert_cmpint(capacity, ==, n_size / 512); /* Write request */ req.type = QVIRTIO_BLK_T_OUT; req.ioprio = 1; req.sector = 0; req.data = g_malloc0(512); strcpy(req.data, "TEST"); req_addr = virtio_blk_request(alloc, &req, 512); g_free(req.data); free_head = qvirtqueue_add(&vqpci->vq, req_addr, 528, false, true); qvirtqueue_add(&vqpci->vq, req_addr + 528, 1, true, false); qvirtqueue_kick(&qvirtio_pci, &dev->vdev, &vqpci->vq, free_head); qvirtio_wait_queue_isr(&qvirtio_pci, &dev->vdev, &vqpci->vq, QVIRTIO_BLK_TIMEOUT_US); status = readb(req_addr + 528); g_assert_cmpint(status, ==, 0); guest_free(alloc, req_addr); /* Read request */ req.type = QVIRTIO_BLK_T_IN; req.ioprio = 1; req.sector = 0; req.data = g_malloc0(512); req_addr = virtio_blk_request(alloc, &req, 512); g_free(req.data); free_head = qvirtqueue_add(&vqpci->vq, req_addr, 16, false, true); qvirtqueue_add(&vqpci->vq, req_addr + 16, 513, true, false); qvirtqueue_kick(&qvirtio_pci, &dev->vdev, &vqpci->vq, free_head); qvirtio_wait_queue_isr(&qvirtio_pci, &dev->vdev, &vqpci->vq, QVIRTIO_BLK_TIMEOUT_US); status = readb(req_addr + 528); g_assert_cmpint(status, ==, 0); data = g_malloc0(512); memread(req_addr + 16, data, 512); g_assert_cmpstr(data, ==, "TEST"); g_free(data); guest_free(alloc, req_addr); /* End test */ guest_free(alloc, (uint64_t)vqpci->vq.desc); qpci_msix_disable(dev->pdev); qvirtio_pci_device_disable(dev); g_free(dev); test_end(); } static void pci_idx(void) { QVirtioPCIDevice *dev; QPCIBus *bus; QVirtQueuePCI *vqpci; QGuestAllocator *alloc; QVirtioBlkReq req; void *addr; uint64_t req_addr; uint64_t capacity; uint32_t features; uint32_t free_head; uint8_t status; char *data; bus = test_start(); alloc = pc_alloc_init(); dev = virtio_blk_init(bus, PCI_SLOT); qpci_msix_enable(dev->pdev); qvirtio_pci_set_msix_configuration_vector(dev, alloc, 0); /* MSI-X is enabled */ addr = dev->addr + QVIRTIO_DEVICE_SPECIFIC_MSIX; capacity = qvirtio_config_readq(&qvirtio_pci, &dev->vdev, addr); g_assert_cmpint(capacity, ==, TEST_IMAGE_SIZE / 512); features = qvirtio_get_features(&qvirtio_pci, &dev->vdev); features = features & ~(QVIRTIO_F_BAD_FEATURE | QVIRTIO_F_RING_INDIRECT_DESC | QVIRTIO_F_NOTIFY_ON_EMPTY | QVIRTIO_BLK_F_SCSI); qvirtio_set_features(&qvirtio_pci, &dev->vdev, features); vqpci = (QVirtQueuePCI *)qvirtqueue_setup(&qvirtio_pci, &dev->vdev, alloc, 0); qvirtqueue_pci_msix_setup(dev, vqpci, alloc, 1); qvirtio_set_driver_ok(&qvirtio_pci, &dev->vdev); /* Write request */ req.type = QVIRTIO_BLK_T_OUT; req.ioprio = 1; req.sector = 0; req.data = g_malloc0(512); strcpy(req.data, "TEST"); req_addr = virtio_blk_request(alloc, &req, 512); g_free(req.data); free_head = qvirtqueue_add(&vqpci->vq, req_addr, 528, false, true); qvirtqueue_add(&vqpci->vq, req_addr + 528, 1, true, false); qvirtqueue_kick(&qvirtio_pci, &dev->vdev, &vqpci->vq, free_head); qvirtio_wait_queue_isr(&qvirtio_pci, &dev->vdev, &vqpci->vq, QVIRTIO_BLK_TIMEOUT_US); /* Write request */ req.type = QVIRTIO_BLK_T_OUT; req.ioprio = 1; req.sector = 1; req.data = g_malloc0(512); strcpy(req.data, "TEST"); req_addr = virtio_blk_request(alloc, &req, 512); g_free(req.data); /* Notify after processing the third request */ qvirtqueue_set_used_event(&vqpci->vq, 2); free_head = qvirtqueue_add(&vqpci->vq, req_addr, 528, false, true); qvirtqueue_add(&vqpci->vq, req_addr + 528, 1, true, false); qvirtqueue_kick(&qvirtio_pci, &dev->vdev, &vqpci->vq, free_head); /* No notification expected */ status = qvirtio_wait_status_byte_no_isr(&qvirtio_pci, &dev->vdev, &vqpci->vq, req_addr + 528, QVIRTIO_BLK_TIMEOUT_US); g_assert_cmpint(status, ==, 0); guest_free(alloc, req_addr); /* Read request */ req.type = QVIRTIO_BLK_T_IN; req.ioprio = 1; req.sector = 1; req.data = g_malloc0(512); req_addr = virtio_blk_request(alloc, &req, 512); g_free(req.data); free_head = qvirtqueue_add(&vqpci->vq, req_addr, 16, false, true); qvirtqueue_add(&vqpci->vq, req_addr + 16, 513, true, false); qvirtqueue_kick(&qvirtio_pci, &dev->vdev, &vqpci->vq, free_head); qvirtio_wait_queue_isr(&qvirtio_pci, &dev->vdev, &vqpci->vq, QVIRTIO_BLK_TIMEOUT_US); status = readb(req_addr + 528); g_assert_cmpint(status, ==, 0); data = g_malloc0(512); memread(req_addr + 16, data, 512); g_assert_cmpstr(data, ==, "TEST"); g_free(data); guest_free(alloc, req_addr); /* End test */ guest_free(alloc, vqpci->vq.desc); qpci_msix_disable(dev->pdev); qvirtio_pci_device_disable(dev); g_free(dev); test_end(); } static void hotplug(void) { QPCIBus *bus; QVirtioPCIDevice *dev; bus = test_start(); /* plug secondary disk */ qpci_plug_device_test("virtio-blk-pci", "drv1", PCI_SLOT_HP, "'drive': 'drive1'"); dev = virtio_blk_init(bus, PCI_SLOT_HP); g_assert(dev); qvirtio_pci_device_disable(dev); g_free(dev); /* unplug secondary disk */ qpci_unplug_acpi_device_test("drv1", PCI_SLOT_HP); test_end(); } int main(int argc, char **argv) { int ret; g_test_init(&argc, &argv, NULL); g_test_add_func("/virtio/blk/pci/basic", pci_basic); g_test_add_func("/virtio/blk/pci/indirect", pci_indirect); g_test_add_func("/virtio/blk/pci/config", pci_config); g_test_add_func("/virtio/blk/pci/msix", pci_msix); g_test_add_func("/virtio/blk/pci/idx", pci_idx); g_test_add_func("/virtio/blk/pci/hotplug", hotplug); ret = g_test_run(); return ret; }