| /* |
| * QTest testcase for VirtIO SCSI |
| * |
| * Copyright (c) 2014 SUSE LINUX Products GmbH |
| * Copyright (c) 2015 Red Hat Inc. |
| * |
| * 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 "libqtest-single.h" |
| #include "qemu/module.h" |
| #include "scsi/constants.h" |
| #include "libqos/libqos-pc.h" |
| #include "libqos/libqos-spapr.h" |
| #include "libqos/virtio.h" |
| #include "libqos/virtio-pci.h" |
| #include "standard-headers/linux/virtio_ids.h" |
| #include "standard-headers/linux/virtio_pci.h" |
| #include "standard-headers/linux/virtio_scsi.h" |
| #include "libqos/virtio-scsi.h" |
| #include "libqos/qgraph.h" |
| |
| #define PCI_SLOT 0x02 |
| #define PCI_FN 0x00 |
| #define QVIRTIO_SCSI_TIMEOUT_US (1 * 1000 * 1000) |
| |
| #define MAX_NUM_QUEUES 64 |
| |
| typedef struct { |
| QVirtioDevice *dev; |
| int num_queues; |
| QVirtQueue *vq[MAX_NUM_QUEUES + 2]; |
| } QVirtioSCSIQueues; |
| |
| static QGuestAllocator *alloc; |
| |
| static void qvirtio_scsi_pci_free(QVirtioSCSIQueues *vs) |
| { |
| int i; |
| |
| for (i = 0; i < vs->num_queues + 2; i++) { |
| qvirtqueue_cleanup(vs->dev->bus, vs->vq[i], alloc); |
| } |
| g_free(vs); |
| } |
| |
| static uint64_t qvirtio_scsi_alloc(QVirtioSCSIQueues *vs, size_t alloc_size, |
| const void *data) |
| { |
| uint64_t addr; |
| |
| addr = guest_alloc(alloc, alloc_size); |
| if (data) { |
| memwrite(addr, data, alloc_size); |
| } |
| |
| return addr; |
| } |
| |
| static uint8_t virtio_scsi_do_command(QVirtioSCSIQueues *vs, |
| const uint8_t *cdb, |
| const uint8_t *data_in, |
| size_t data_in_len, |
| uint8_t *data_out, size_t data_out_len, |
| struct virtio_scsi_cmd_resp *resp_out) |
| { |
| QVirtQueue *vq; |
| struct virtio_scsi_cmd_req req = { { 0 } }; |
| struct virtio_scsi_cmd_resp resp = { .response = 0xff, .status = 0xff }; |
| uint64_t req_addr, resp_addr, data_in_addr = 0, data_out_addr = 0; |
| uint8_t response; |
| uint32_t free_head; |
| QTestState *qts = global_qtest; |
| |
| vq = vs->vq[2]; |
| |
| req.lun[0] = 1; /* Select LUN */ |
| req.lun[1] = 1; /* Select target 1 */ |
| memcpy(req.cdb, cdb, VIRTIO_SCSI_CDB_SIZE); |
| |
| /* XXX: Fix endian if any multi-byte field in req/resp is used */ |
| |
| /* Add request header */ |
| req_addr = qvirtio_scsi_alloc(vs, sizeof(req), &req); |
| free_head = qvirtqueue_add(qts, vq, req_addr, sizeof(req), false, true); |
| |
| if (data_out_len) { |
| data_out_addr = qvirtio_scsi_alloc(vs, data_out_len, data_out); |
| qvirtqueue_add(qts, vq, data_out_addr, data_out_len, false, true); |
| } |
| |
| /* Add response header */ |
| resp_addr = qvirtio_scsi_alloc(vs, sizeof(resp), &resp); |
| qvirtqueue_add(qts, vq, resp_addr, sizeof(resp), true, !!data_in_len); |
| |
| if (data_in_len) { |
| data_in_addr = qvirtio_scsi_alloc(vs, data_in_len, data_in); |
| qvirtqueue_add(qts, vq, data_in_addr, data_in_len, true, false); |
| } |
| |
| qvirtqueue_kick(qts, vs->dev, vq, free_head); |
| qvirtio_wait_used_elem(qts, vs->dev, vq, free_head, NULL, |
| QVIRTIO_SCSI_TIMEOUT_US); |
| |
| response = readb(resp_addr + |
| offsetof(struct virtio_scsi_cmd_resp, response)); |
| |
| if (resp_out) { |
| memread(resp_addr, resp_out, sizeof(*resp_out)); |
| } |
| |
| guest_free(alloc, req_addr); |
| guest_free(alloc, resp_addr); |
| guest_free(alloc, data_in_addr); |
| guest_free(alloc, data_out_addr); |
| return response; |
| } |
| |
| static QVirtioSCSIQueues *qvirtio_scsi_init(QVirtioDevice *dev) |
| { |
| QVirtioSCSIQueues *vs; |
| const uint8_t test_unit_ready_cdb[VIRTIO_SCSI_CDB_SIZE] = {}; |
| struct virtio_scsi_cmd_resp resp; |
| uint64_t features; |
| int i; |
| |
| vs = g_new0(QVirtioSCSIQueues, 1); |
| vs->dev = dev; |
| |
| features = qvirtio_get_features(dev); |
| features &= ~(QVIRTIO_F_BAD_FEATURE | (1ull << VIRTIO_RING_F_EVENT_IDX)); |
| qvirtio_set_features(dev, features); |
| |
| vs->num_queues = qvirtio_config_readl(dev, 0); |
| |
| g_assert_cmpint(vs->num_queues, <, MAX_NUM_QUEUES); |
| |
| for (i = 0; i < vs->num_queues + 2; i++) { |
| vs->vq[i] = qvirtqueue_setup(dev, alloc, i); |
| } |
| |
| qvirtio_set_driver_ok(dev); |
| |
| /* Clear the POWER ON OCCURRED unit attention */ |
| g_assert_cmpint(virtio_scsi_do_command(vs, test_unit_ready_cdb, |
| NULL, 0, NULL, 0, &resp), |
| ==, 0); |
| g_assert_cmpint(resp.status, ==, CHECK_CONDITION); |
| g_assert_cmpint(resp.sense[0], ==, 0x70); /* Fixed format sense buffer */ |
| g_assert_cmpint(resp.sense[2], ==, UNIT_ATTENTION); |
| g_assert_cmpint(resp.sense[12], ==, 0x29); /* POWER ON */ |
| g_assert_cmpint(resp.sense[13], ==, 0x00); |
| |
| return vs; |
| } |
| |
| static void hotplug(void *obj, void *data, QGuestAllocator *alloc) |
| { |
| QTestState *qts = global_qtest; |
| |
| qtest_qmp_device_add(qts, "scsi-hd", "scsihd", "{'drive': 'drv1'}"); |
| qtest_qmp_device_del(qts, "scsihd"); |
| } |
| |
| /* Test WRITE SAME with the lba not aligned */ |
| static void test_unaligned_write_same(void *obj, void *data, |
| QGuestAllocator *t_alloc) |
| { |
| QVirtioSCSI *scsi = obj; |
| QVirtioSCSIQueues *vs; |
| uint8_t buf1[512] = { 0 }; |
| uint8_t buf2[512] = { 1 }; |
| const uint8_t write_same_cdb_1[VIRTIO_SCSI_CDB_SIZE] = { |
| 0x41, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x02, 0x00 |
| }; |
| const uint8_t write_same_cdb_2[VIRTIO_SCSI_CDB_SIZE] = { |
| 0x41, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x33, 0x00, 0x00 |
| }; |
| const uint8_t write_same_cdb_ndob[VIRTIO_SCSI_CDB_SIZE] = { |
| 0x41, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x33, 0x00, 0x00 |
| }; |
| |
| alloc = t_alloc; |
| vs = qvirtio_scsi_init(scsi->vdev); |
| |
| g_assert_cmphex(0, ==, |
| virtio_scsi_do_command(vs, write_same_cdb_1, NULL, 0, buf1, 512, |
| NULL)); |
| |
| g_assert_cmphex(0, ==, |
| virtio_scsi_do_command(vs, write_same_cdb_2, NULL, 0, buf2, 512, |
| NULL)); |
| |
| g_assert_cmphex(0, ==, |
| virtio_scsi_do_command(vs, write_same_cdb_ndob, NULL, 0, NULL, 0, |
| NULL)); |
| |
| qvirtio_scsi_pci_free(vs); |
| } |
| |
| /* Test UNMAP with a large LBA, issue #345 */ |
| static void test_unmap_large_lba(void *obj, void *data, |
| QGuestAllocator *t_alloc) |
| { |
| QVirtioSCSI *scsi = obj; |
| QVirtioSCSIQueues *vs; |
| const uint8_t unmap[VIRTIO_SCSI_CDB_SIZE] = { |
| 0x42, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x00 |
| }; |
| |
| /* |
| * Default null-co device size is 2**30 |
| * LBA 0x7fff is ~ 1/8 into device, with 4k blocks |
| * if check_lba_range incorrectly using 512 bytes, will trigger sense error |
| */ |
| uint8_t unmap_params[0x18] = { |
| 0x00, 0x16, /* unmap data length */ |
| 0x00, 0x10, /* unmap block descriptor data length */ |
| 0x00, 0x00, 0x00, 0x00, /* reserved */ |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7f, 0xff, /* LBA */ |
| 0x00, 0x00, 0x03, 0xff, /* sector count */ |
| 0x00, 0x00, 0x00, 0x00, /* reserved */ |
| }; |
| struct virtio_scsi_cmd_resp resp; |
| |
| alloc = t_alloc; |
| vs = qvirtio_scsi_init(scsi->vdev); |
| |
| virtio_scsi_do_command(vs, unmap, NULL, 0, unmap_params, |
| sizeof(unmap_params), &resp); |
| g_assert_cmphex(resp.response, ==, 0); |
| g_assert_cmphex(resp.status, !=, CHECK_CONDITION); |
| |
| qvirtio_scsi_pci_free(vs); |
| } |
| |
| static void test_write_to_cdrom(void *obj, void *data, |
| QGuestAllocator *t_alloc) |
| { |
| QVirtioSCSI *scsi = obj; |
| QVirtioSCSIQueues *vs; |
| uint8_t buf[2048] = { 0 }; |
| const uint8_t write_cdb[VIRTIO_SCSI_CDB_SIZE] = { |
| /* WRITE(10) to LBA 0, transfer length 1 */ |
| 0x2a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00 |
| }; |
| struct virtio_scsi_cmd_resp resp; |
| |
| alloc = t_alloc; |
| vs = qvirtio_scsi_init(scsi->vdev); |
| |
| virtio_scsi_do_command(vs, write_cdb, NULL, 0, buf, 2048, &resp); |
| g_assert_cmphex(resp.response, ==, 0); |
| g_assert_cmphex(resp.status, ==, CHECK_CONDITION); |
| g_assert_cmphex(resp.sense[0], ==, 0x70); |
| g_assert_cmphex(resp.sense[2], ==, DATA_PROTECT); |
| g_assert_cmphex(resp.sense[12], ==, 0x27); /* WRITE PROTECTED */ |
| g_assert_cmphex(resp.sense[13], ==, 0x00); /* WRITE PROTECTED */ |
| |
| qvirtio_scsi_pci_free(vs); |
| } |
| |
| static void test_iothread_attach_node(void *obj, void *data, |
| QGuestAllocator *t_alloc) |
| { |
| QVirtioSCSIPCI *scsi_pci = obj; |
| QVirtioSCSI *scsi = &scsi_pci->scsi; |
| QVirtioSCSIQueues *vs; |
| g_autofree char *tmp_path = NULL; |
| int fd; |
| int ret; |
| |
| uint8_t buf[512] = { 0 }; |
| const uint8_t write_cdb[VIRTIO_SCSI_CDB_SIZE] = { |
| /* WRITE(10) to LBA 0, transfer length 1 */ |
| 0x2a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00 |
| }; |
| |
| alloc = t_alloc; |
| vs = qvirtio_scsi_init(scsi->vdev); |
| |
| /* Create a temporary qcow2 overlay*/ |
| fd = g_file_open_tmp("qtest.XXXXXX", &tmp_path, NULL); |
| g_assert(fd >= 0); |
| close(fd); |
| |
| if (!have_qemu_img()) { |
| g_test_message("QTEST_QEMU_IMG not set or qemu-img missing; " |
| "skipping snapshot test"); |
| goto fail; |
| } |
| |
| mkqcow2(tmp_path, 64); |
| |
| /* Attach the overlay to the null0 node */ |
| qtest_qmp_assert_success(scsi_pci->pci_vdev.pdev->bus->qts, |
| "{'execute': 'blockdev-add', 'arguments': {" |
| " 'driver': 'qcow2', 'node-name': 'overlay'," |
| " 'backing': 'null0', 'file': {" |
| " 'driver': 'file', 'filename': %s}}}", |
| tmp_path); |
| |
| /* Send a request to see if the AioContext is still right */ |
| ret = virtio_scsi_do_command(vs, write_cdb, NULL, 0, buf, 512, NULL); |
| g_assert_cmphex(ret, ==, 0); |
| |
| fail: |
| qvirtio_scsi_pci_free(vs); |
| unlink(tmp_path); |
| } |
| |
| static void *virtio_scsi_hotplug_setup(GString *cmd_line, void *arg) |
| { |
| g_string_append(cmd_line, |
| " -drive id=drv1,if=none,file=null-co://," |
| "file.read-zeroes=on,format=raw"); |
| return arg; |
| } |
| |
| static void *virtio_scsi_setup(GString *cmd_line, void *arg) |
| { |
| g_string_append(cmd_line, |
| " -drive file=blkdebug::null-co://," |
| "file.image.read-zeroes=on," |
| "if=none,id=dr1,format=raw,file.align=4k " |
| "-device scsi-hd,drive=dr1,lun=0,scsi-id=1"); |
| return arg; |
| } |
| |
| static void *virtio_scsi_setup_4k(GString *cmd_line, void *arg) |
| { |
| g_string_append(cmd_line, |
| " -drive file=blkdebug::null-co://," |
| "file.image.read-zeroes=on," |
| "if=none,id=dr1,format=raw " |
| "-device scsi-hd,drive=dr1,lun=0,scsi-id=1" |
| ",logical_block_size=4k,physical_block_size=4k"); |
| return arg; |
| } |
| |
| static void *virtio_scsi_setup_cd(GString *cmd_line, void *arg) |
| { |
| g_string_append(cmd_line, |
| " -drive file=null-co://," |
| "file.read-zeroes=on," |
| "if=none,id=dr1,format=raw " |
| "-device scsi-cd,drive=dr1,lun=0,scsi-id=1"); |
| return arg; |
| } |
| |
| static void *virtio_scsi_setup_iothread(GString *cmd_line, void *arg) |
| { |
| g_string_append(cmd_line, |
| " -object iothread,id=thread0" |
| " -blockdev driver=null-co,read-zeroes=on,node-name=null0" |
| " -device scsi-hd,drive=null0"); |
| return arg; |
| } |
| |
| static void register_virtio_scsi_test(void) |
| { |
| QOSGraphTestOptions opts = { }; |
| |
| opts.before = virtio_scsi_hotplug_setup; |
| qos_add_test("hotplug", "virtio-scsi", hotplug, &opts); |
| |
| opts.before = virtio_scsi_setup; |
| qos_add_test("unaligned-write-same", "virtio-scsi", |
| test_unaligned_write_same, &opts); |
| |
| opts.before = virtio_scsi_setup_4k; |
| qos_add_test("large-lba-unmap", "virtio-scsi", |
| test_unmap_large_lba, &opts); |
| |
| opts.before = virtio_scsi_setup_cd; |
| qos_add_test("write-to-cdrom", "virtio-scsi", test_write_to_cdrom, &opts); |
| |
| opts.before = virtio_scsi_setup_iothread; |
| opts.edge = (QOSGraphEdgeOptions) { |
| .extra_device_opts = "iothread=thread0", |
| }; |
| qos_add_test("iothread-attach-node", "virtio-scsi-pci", |
| test_iothread_attach_node, &opts); |
| } |
| |
| libqos_init(register_virtio_scsi_test); |
