diff options
Diffstat (limited to 'hw/vfio')
| -rw-r--r-- | hw/vfio/common.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/hw/vfio/common.c b/hw/vfio/common.c index 49121798ff..902a047947 100644 --- a/hw/vfio/common.c +++ b/hw/vfio/common.c @@ -1145,6 +1145,7 @@ retry: if (ioctl(vbasedev->fd, VFIO_DEVICE_GET_REGION_INFO, *info)) { g_free(*info); + *info = NULL; return -errno; } @@ -1158,6 +1159,41 @@ retry: return 0; } +int vfio_get_dev_region_info(VFIODevice *vbasedev, uint32_t type, + uint32_t subtype, struct vfio_region_info **info) +{ + int i; + + for (i = 0; i < vbasedev->num_regions; i++) { + struct vfio_info_cap_header *hdr; + struct vfio_region_info_cap_type *cap_type; + + if (vfio_get_region_info(vbasedev, i, info)) { + continue; + } + + hdr = vfio_get_region_info_cap(*info, VFIO_REGION_INFO_CAP_TYPE); + if (!hdr) { + g_free(*info); + continue; + } + + cap_type = container_of(hdr, struct vfio_region_info_cap_type, header); + + trace_vfio_get_dev_region(vbasedev->name, i, + cap_type->type, cap_type->subtype); + + if (cap_type->type == type && cap_type->subtype == subtype) { + return 0; + } + + g_free(*info); + } + + *info = NULL; + return -ENODEV; +} + /* * Interfaces for IBM EEH (Enhanced Error Handling) */ |