void *mmap;
} VFIOMSIXInfo;
+typedef struct VFIODeviceOps VFIODeviceOps;
+
typedef struct VFIODevice {
+ QLIST_ENTRY(VFIODevice) next;
struct VFIOGroup *group;
char *name;
int fd;
int type;
+ bool reset_works;
+ bool needs_reset;
+ VFIODeviceOps *ops;
} VFIODevice;
+struct VFIODeviceOps {
+ void (*vfio_compute_needs_reset)(VFIODevice *vdev);
+ int (*vfio_hot_reset_multi)(VFIODevice *vdev);
+};
+
typedef struct VFIOPCIDevice {
PCIDevice pdev;
VFIODevice vbasedev;
VFIOBAR bars[PCI_NUM_REGIONS - 1]; /* No ROM */
VFIOVGA vga; /* 0xa0000, 0x3b0, 0x3c0 */
PCIHostDeviceAddress host;
- QLIST_ENTRY(VFIOPCIDevice) next;
EventNotifier err_notifier;
uint32_t features;
#define VFIO_FEATURE_ENABLE_VGA_BIT 0
#define VFIO_FEATURE_ENABLE_VGA (1 << VFIO_FEATURE_ENABLE_VGA_BIT)
int32_t bootindex;
uint8_t pm_cap;
- bool reset_works;
bool has_vga;
bool pci_aer;
bool has_flr;
bool has_pm_reset;
- bool needs_reset;
bool rom_read_failed;
} VFIOPCIDevice;
int fd;
int groupid;
VFIOContainer *container;
- QLIST_HEAD(, VFIOPCIDevice) device_list;
+ QLIST_HEAD(, VFIODevice) device_list;
QLIST_ENTRY(VFIOGroup) next;
QLIST_ENTRY(VFIOGroup) container_next;
} VFIOGroup;
single ? "one" : "multi");
vfio_pci_pre_reset(vdev);
- vdev->needs_reset = false;
+ vdev->vbasedev.needs_reset = false;
info = g_malloc0(sizeof(*info));
info->argsz = sizeof(*info);
for (i = 0; i < info->count; i++) {
PCIHostDeviceAddress host;
VFIOPCIDevice *tmp;
+ VFIODevice *vbasedev_iter;
host.domain = devices[i].segment;
host.bus = devices[i].bus;
}
/* Prep dependent devices for reset and clear our marker. */
- QLIST_FOREACH(tmp, &group->device_list, next) {
+ QLIST_FOREACH(vbasedev_iter, &group->device_list, next) {
+ if (vbasedev_iter->type != VFIO_DEVICE_TYPE_PCI) {
+ continue;
+ }
+ tmp = container_of(vbasedev_iter, VFIOPCIDevice, vbasedev);
if (vfio_pci_host_match(&host, &tmp->host)) {
if (single) {
error_report("vfio: found another in-use device "
goto out_single;
}
vfio_pci_pre_reset(tmp);
- tmp->needs_reset = false;
+ tmp->vbasedev.needs_reset = false;
multi = true;
break;
}
for (i = 0; i < info->count; i++) {
PCIHostDeviceAddress host;
VFIOPCIDevice *tmp;
+ VFIODevice *vbasedev_iter;
host.domain = devices[i].segment;
host.bus = devices[i].bus;
break;
}
- QLIST_FOREACH(tmp, &group->device_list, next) {
+ QLIST_FOREACH(vbasedev_iter, &group->device_list, next) {
+ if (vbasedev_iter->type != VFIO_DEVICE_TYPE_PCI) {
+ continue;
+ }
+ tmp = container_of(vbasedev_iter, VFIOPCIDevice, vbasedev);
if (vfio_pci_host_match(&host, &tmp->host)) {
vfio_pci_post_reset(tmp);
break;
return vfio_pci_hot_reset(vdev, true);
}
-static int vfio_pci_hot_reset_multi(VFIOPCIDevice *vdev)
+static int vfio_pci_hot_reset_multi(VFIODevice *vbasedev)
{
+ VFIOPCIDevice *vdev = container_of(vbasedev, VFIOPCIDevice, vbasedev);
return vfio_pci_hot_reset(vdev, false);
}
-static void vfio_pci_reset_handler(void *opaque)
+static void vfio_pci_compute_needs_reset(VFIODevice *vbasedev)
+{
+ VFIOPCIDevice *vdev = container_of(vbasedev, VFIOPCIDevice, vbasedev);
+ if (!vbasedev->reset_works || (!vdev->has_flr && vdev->has_pm_reset)) {
+ vbasedev->needs_reset = true;
+ }
+}
+
+static VFIODeviceOps vfio_pci_ops = {
+ .vfio_compute_needs_reset = vfio_pci_compute_needs_reset,
+ .vfio_hot_reset_multi = vfio_pci_hot_reset_multi,
+};
+
+static void vfio_reset_handler(void *opaque)
{
VFIOGroup *group;
- VFIOPCIDevice *vdev;
+ VFIODevice *vbasedev;
QLIST_FOREACH(group, &group_list, next) {
- QLIST_FOREACH(vdev, &group->device_list, next) {
- if (!vdev->reset_works || (!vdev->has_flr && vdev->has_pm_reset)) {
- vdev->needs_reset = true;
- }
+ QLIST_FOREACH(vbasedev, &group->device_list, next) {
+ vbasedev->ops->vfio_compute_needs_reset(vbasedev);
}
}
QLIST_FOREACH(group, &group_list, next) {
- QLIST_FOREACH(vdev, &group->device_list, next) {
- if (vdev->needs_reset) {
- vfio_pci_hot_reset_multi(vdev);
+ QLIST_FOREACH(vbasedev, &group->device_list, next) {
+ if (vbasedev->needs_reset) {
+ vbasedev->ops->vfio_hot_reset_multi(vbasedev);
}
}
}
}
if (QLIST_EMPTY(&group_list)) {
- qemu_register_reset(vfio_pci_reset_handler, NULL);
+ qemu_register_reset(vfio_reset_handler, NULL);
}
QLIST_INSERT_HEAD(&group_list, group, next);
g_free(group);
if (QLIST_EMPTY(&group_list)) {
- qemu_unregister_reset(vfio_pci_reset_handler, NULL);
+ qemu_unregister_reset(vfio_reset_handler, NULL);
}
}
vdev->vbasedev.fd = ret;
vdev->vbasedev.group = group;
- QLIST_INSERT_HEAD(&group->device_list, vdev, next);
+ QLIST_INSERT_HEAD(&group->device_list, &vdev->vbasedev, next);
/* Sanity check device */
ret = ioctl(vdev->vbasedev.fd, VFIO_DEVICE_GET_INFO, &dev_info);
goto error;
}
- vdev->reset_works = !!(dev_info.flags & VFIO_DEVICE_FLAGS_RESET);
+ vdev->vbasedev.reset_works = !!(dev_info.flags & VFIO_DEVICE_FLAGS_RESET);
if (dev_info.num_regions < VFIO_PCI_CONFIG_REGION_INDEX + 1) {
error_report("vfio: unexpected number of io regions %u",
error:
if (ret) {
- QLIST_REMOVE(vdev, next);
+ QLIST_REMOVE(&vdev->vbasedev, next);
vdev->vbasedev.group = NULL;
close(vdev->vbasedev.fd);
}
static void vfio_put_device(VFIOPCIDevice *vdev)
{
- QLIST_REMOVE(vdev, next);
+ QLIST_REMOVE(&vdev->vbasedev, next);
vdev->vbasedev.group = NULL;
trace_vfio_put_device(vdev->vbasedev.fd);
close(vdev->vbasedev.fd);
static int vfio_initfn(PCIDevice *pdev)
{
- VFIOPCIDevice *pvdev, *vdev = DO_UPCAST(VFIOPCIDevice, pdev, pdev);
+ VFIOPCIDevice *vdev = DO_UPCAST(VFIOPCIDevice, pdev, pdev);
+ VFIODevice *vbasedev_iter;
VFIOGroup *group;
char path[PATH_MAX], iommu_group_path[PATH_MAX], *group_name;
ssize_t len;
return -errno;
}
+ vdev->vbasedev.ops = &vfio_pci_ops;
+
vdev->vbasedev.type = VFIO_DEVICE_TYPE_PCI;
vdev->vbasedev.name = g_strdup_printf("%04x:%02x:%02x.%01x",
vdev->host.domain, vdev->host.bus,
vdev->host.domain, vdev->host.bus, vdev->host.slot,
vdev->host.function);
- QLIST_FOREACH(pvdev, &group->device_list, next) {
- if (strcmp(pvdev->vbasedev.name, vdev->vbasedev.name) == 0) {
-
+ QLIST_FOREACH(vbasedev_iter, &group->device_list, next) {
+ if (strcmp(vbasedev_iter->name, vdev->vbasedev.name) == 0) {
error_report("vfio: error: device %s is already attached", path);
vfio_put_group(group);
return -EBUSY;
vfio_pci_pre_reset(vdev);
- if (vdev->reset_works && (vdev->has_flr || !vdev->has_pm_reset) &&
+ if (vdev->vbasedev.reset_works &&
+ (vdev->has_flr || !vdev->has_pm_reset) &&
!ioctl(vdev->vbasedev.fd, VFIO_DEVICE_RESET)) {
trace_vfio_pci_reset_flr(vdev->host.domain, vdev->host.bus,
vdev->host.slot, vdev->host.function);
}
/* If nothing else works and the device supports PM reset, use it */
- if (vdev->reset_works && vdev->has_pm_reset &&
+ if (vdev->vbasedev.reset_works && vdev->has_pm_reset &&
!ioctl(vdev->vbasedev.fd, VFIO_DEVICE_RESET)) {
trace_vfio_pci_reset_pm(vdev->host.domain, vdev->host.bus,
vdev->host.slot, vdev->host.function);