diff options
Diffstat (limited to 'hw/vfio/platform.c')
| -rw-r--r-- | hw/vfio/platform.c | 66 |
1 files changed, 38 insertions, 28 deletions
diff --git a/hw/vfio/platform.c b/hw/vfio/platform.c index a559e7b659..a4663c918e 100644 --- a/hw/vfio/platform.c +++ b/hw/vfio/platform.c @@ -44,9 +44,10 @@ static inline bool vfio_irq_is_automasked(VFIOINTp *intp) * and add it into the list of IRQs * @vbasedev: the VFIO device handle * @info: irq info struct retrieved from VFIO driver + * @errp: error object */ static VFIOINTp *vfio_init_intp(VFIODevice *vbasedev, - struct vfio_irq_info info) + struct vfio_irq_info info, Error **errp) { int ret; VFIOPlatformDevice *vdev = @@ -69,7 +70,8 @@ static VFIOINTp *vfio_init_intp(VFIODevice *vbasedev, if (ret) { g_free(intp->interrupt); g_free(intp); - error_report("vfio: Error: trigger event_notifier_init failed "); + error_setg_errno(errp, -ret, + "failed to initialize trigger eventd notifier"); return NULL; } if (vfio_irq_is_automasked(intp)) { @@ -80,7 +82,8 @@ static VFIOINTp *vfio_init_intp(VFIODevice *vbasedev, g_free(intp->interrupt); g_free(intp->unmask); g_free(intp); - error_report("vfio: Error: resamplefd event_notifier_init failed"); + error_setg_errno(errp, -ret, + "failed to initialize resample eventd notifier"); return NULL; } } @@ -456,9 +459,10 @@ static int vfio_platform_hot_reset_multi(VFIODevice *vbasedev) * vfio_populate_device - Allocate and populate MMIO region * and IRQ structs according to driver returned information * @vbasedev: the VFIO device handle + * @errp: error object * */ -static int vfio_populate_device(VFIODevice *vbasedev) +static int vfio_populate_device(VFIODevice *vbasedev, Error **errp) { VFIOINTp *intp, *tmp; int i, ret = -1; @@ -466,7 +470,7 @@ static int vfio_populate_device(VFIODevice *vbasedev) container_of(vbasedev, VFIOPlatformDevice, vbasedev); if (!(vbasedev->flags & VFIO_DEVICE_FLAGS_PLATFORM)) { - error_report("vfio: Um, this isn't a platform device"); + error_setg(errp, "this isn't a platform device"); return ret; } @@ -480,7 +484,7 @@ static int vfio_populate_device(VFIODevice *vbasedev) vdev->regions[i], i, name); g_free(name); if (ret) { - error_report("vfio: Error getting region %d info: %m", i); + error_setg_errno(errp, -ret, "failed to get region %d info", i); goto reg_error; } } @@ -496,16 +500,15 @@ static int vfio_populate_device(VFIODevice *vbasedev) irq.index = i; ret = ioctl(vbasedev->fd, VFIO_DEVICE_GET_IRQ_INFO, &irq); if (ret) { - error_report("vfio: error getting device %s irq info", - vbasedev->name); + error_setg_errno(errp, -ret, "failed to get device irq info"); goto irq_err; } else { trace_vfio_platform_populate_interrupts(irq.index, irq.count, irq.flags); - intp = vfio_init_intp(vbasedev, irq); + intp = vfio_init_intp(vbasedev, irq, errp); if (!intp) { - error_report("vfio: Error installing IRQ %d up", i); + ret = -1; goto irq_err; } } @@ -538,13 +541,14 @@ static VFIODeviceOps vfio_platform_ops = { /** * vfio_base_device_init - perform preliminary VFIO setup * @vbasedev: the VFIO device handle + * @errp: error object * * Implement the VFIO command sequence that allows to discover * assigned device resources: group extraction, device * fd retrieval, resource query. * Precondition: the device name must be initialized */ -static int vfio_base_device_init(VFIODevice *vbasedev) +static int vfio_base_device_init(VFIODevice *vbasedev, Error **errp) { VFIOGroup *group; VFIODevice *vbasedev_iter; @@ -560,6 +564,7 @@ static int vfio_base_device_init(VFIODevice *vbasedev) vbasedev->name = g_strdup(basename(vbasedev->sysfsdev)); } else { if (!vbasedev->name || strchr(vbasedev->name, '/')) { + error_setg(errp, "wrong host device name"); return -EINVAL; } @@ -568,8 +573,8 @@ static int vfio_base_device_init(VFIODevice *vbasedev) } if (stat(vbasedev->sysfsdev, &st) < 0) { - error_report("vfio: error: no such host device: %s", - vbasedev->sysfsdev); + error_setg_errno(errp, errno, + "failed to get the sysfs host device file status"); return -errno; } @@ -578,44 +583,41 @@ static int vfio_base_device_init(VFIODevice *vbasedev) g_free(tmp); if (len < 0 || len >= sizeof(group_path)) { - error_report("vfio: error no iommu_group for device"); - return len < 0 ? -errno : -ENAMETOOLONG; + ret = len < 0 ? -errno : -ENAMETOOLONG; + error_setg_errno(errp, -ret, "no iommu_group found"); + return ret; } group_path[len] = 0; group_name = basename(group_path); if (sscanf(group_name, "%d", &groupid) != 1) { - error_report("vfio: error reading %s: %m", group_path); + error_setg_errno(errp, errno, "failed to read %s", group_path); return -errno; } trace_vfio_platform_base_device_init(vbasedev->name, groupid); - group = vfio_get_group(groupid, &address_space_memory); + group = vfio_get_group(groupid, &address_space_memory, errp); if (!group) { - error_report("vfio: failed to get group %d", groupid); return -ENOENT; } QLIST_FOREACH(vbasedev_iter, &group->device_list, next) { if (strcmp(vbasedev_iter->name, vbasedev->name) == 0) { - error_report("vfio: error: device %s is already attached", - vbasedev->name); + error_setg(errp, "device is already attached"); vfio_put_group(group); return -EBUSY; } } - ret = vfio_get_device(group, vbasedev->name, vbasedev); + ret = vfio_get_device(group, vbasedev->name, vbasedev, errp); if (ret) { - error_report("vfio: failed to get device %s", vbasedev->name); vfio_put_group(group); return ret; } - ret = vfio_populate_device(vbasedev); + ret = vfio_populate_device(vbasedev, errp); if (ret) { - error_report("vfio: failed to populate device %s", vbasedev->name); vfio_put_group(group); } @@ -644,11 +646,9 @@ static void vfio_platform_realize(DeviceState *dev, Error **errp) vbasedev->sysfsdev : vbasedev->name, vdev->compat); - ret = vfio_base_device_init(vbasedev); + ret = vfio_base_device_init(vbasedev, errp); if (ret) { - error_setg(errp, "vfio: vfio_base_device_init failed for %s", - vbasedev->name); - return; + goto out; } for (i = 0; i < vbasedev->num_regions; i++) { @@ -658,6 +658,16 @@ static void vfio_platform_realize(DeviceState *dev, Error **errp) } sysbus_init_mmio(sbdev, vdev->regions[i]->mem); } +out: + if (!ret) { + return; + } + + if (vdev->vbasedev.name) { + error_prepend(errp, ERR_PREFIX, vdev->vbasedev.name); + } else { + error_prepend(errp, "vfio error: "); + } } static const VMStateDescription vfio_platform_vmstate = { |