1 /* 2 * QTest testcase for VirtIO 9P 3 * 4 * Copyright (c) 2014 SUSE LINUX Products GmbH 5 * 6 * This work is licensed under the terms of the GNU GPL, version 2 or later. 7 * See the COPYING file in the top-level directory. 8 */ 9 10 #include "qemu/osdep.h" 11 #include "libqtest.h" 12 #include "qemu-common.h" 13 #include "libqos/libqos-pc.h" 14 #include "libqos/libqos-spapr.h" 15 #include "libqos/virtio.h" 16 #include "libqos/virtio-pci.h" 17 #include "standard-headers/linux/virtio_ids.h" 18 #include "standard-headers/linux/virtio_pci.h" 19 20 static const char mount_tag[] = "qtest"; 21 static char *test_share; 22 23 24 static QOSState *qvirtio_9p_start(void) 25 { 26 const char *arch = qtest_get_arch(); 27 const char *cmd = "-fsdev local,id=fsdev0,security_model=none,path=%s " 28 "-device virtio-9p-pci,fsdev=fsdev0,mount_tag=%s"; 29 30 test_share = g_strdup("/tmp/qtest.XXXXXX"); 31 g_assert_nonnull(mkdtemp(test_share)); 32 33 if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) { 34 return qtest_pc_boot(cmd, test_share, mount_tag); 35 } 36 if (strcmp(arch, "ppc64") == 0) { 37 return qtest_spapr_boot(cmd, test_share, mount_tag); 38 } 39 40 g_printerr("virtio-9p tests are only available on x86 or ppc64\n"); 41 exit(EXIT_FAILURE); 42 } 43 44 static void qvirtio_9p_stop(QOSState *qs) 45 { 46 qtest_shutdown(qs); 47 rmdir(test_share); 48 g_free(test_share); 49 } 50 51 static void pci_nop(void) 52 { 53 QOSState *qs; 54 55 qs = qvirtio_9p_start(); 56 qvirtio_9p_stop(qs); 57 } 58 59 typedef struct { 60 QVirtioDevice *dev; 61 QOSState *qs; 62 QVirtQueue *vq; 63 } QVirtIO9P; 64 65 static QVirtIO9P *qvirtio_9p_pci_init(QOSState *qs) 66 { 67 QVirtIO9P *v9p; 68 QVirtioPCIDevice *dev; 69 70 v9p = g_new0(QVirtIO9P, 1); 71 72 v9p->qs = qs; 73 dev = qvirtio_pci_device_find(v9p->qs->pcibus, VIRTIO_ID_9P); 74 g_assert_nonnull(dev); 75 g_assert_cmphex(dev->vdev.device_type, ==, VIRTIO_ID_9P); 76 v9p->dev = (QVirtioDevice *) dev; 77 78 qvirtio_pci_device_enable(dev); 79 qvirtio_reset(v9p->dev); 80 qvirtio_set_acknowledge(v9p->dev); 81 qvirtio_set_driver(v9p->dev); 82 83 v9p->vq = qvirtqueue_setup(v9p->dev, v9p->qs->alloc, 0); 84 return v9p; 85 } 86 87 static void qvirtio_9p_pci_free(QVirtIO9P *v9p) 88 { 89 qvirtqueue_cleanup(v9p->dev->bus, v9p->vq, v9p->qs->alloc); 90 qvirtio_pci_device_disable(container_of(v9p->dev, QVirtioPCIDevice, vdev)); 91 g_free(v9p->dev); 92 g_free(v9p); 93 } 94 95 static void pci_basic_config(void) 96 { 97 QVirtIO9P *v9p; 98 void *addr; 99 size_t tag_len; 100 char *tag; 101 int i; 102 QOSState *qs; 103 104 qs = qvirtio_9p_start(); 105 v9p = qvirtio_9p_pci_init(qs); 106 107 addr = ((QVirtioPCIDevice *) v9p->dev)->addr + VIRTIO_PCI_CONFIG_OFF(false); 108 tag_len = qvirtio_config_readw(v9p->dev, 109 (uint64_t)(uintptr_t)addr); 110 g_assert_cmpint(tag_len, ==, strlen(mount_tag)); 111 addr += sizeof(uint16_t); 112 113 tag = g_malloc(tag_len); 114 for (i = 0; i < tag_len; i++) { 115 tag[i] = qvirtio_config_readb(v9p->dev, (uint64_t)(uintptr_t)addr + i); 116 } 117 g_assert_cmpmem(tag, tag_len, mount_tag, tag_len); 118 g_free(tag); 119 120 qvirtio_9p_pci_free(v9p); 121 qvirtio_9p_stop(qs); 122 } 123 124 int main(int argc, char **argv) 125 { 126 g_test_init(&argc, &argv, NULL); 127 qtest_add_func("/virtio/9p/pci/nop", pci_nop); 128 qtest_add_func("/virtio/9p/pci/basic/configuration", pci_basic_config); 129 130 return g_test_run(); 131 } 132