diff options
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/scsi-disk.c | 13 | ||||
| -rw-r--r-- | hw/virtio-blk.c | 20 | ||||
| -rw-r--r-- | hw/virtio-blk.h | 2 |
3 files changed, 26 insertions, 9 deletions
diff --git a/hw/scsi-disk.c b/hw/scsi-disk.c index da56d2b..e64fbf1 100644 --- a/hw/scsi-disk.c +++ b/hw/scsi-disk.c @@ -396,8 +396,10 @@ static int scsi_disk_emulate_inquiry(SCSIRequest *req, uint8_t *outbuf) } case 0xb0: /* block device characteristics */ { - unsigned int min_io_size = s->qdev.conf.min_io_size >> 9; - unsigned int opt_io_size = s->qdev.conf.opt_io_size >> 9; + unsigned int min_io_size = + s->qdev.conf.min_io_size / s->qdev.blocksize; + unsigned int opt_io_size = + s->qdev.conf.opt_io_size / s->qdev.blocksize; /* required VPD size with unmap support */ outbuf[3] = buflen = 0x3c; @@ -1036,11 +1038,12 @@ static int scsi_disk_initfn(SCSIDevice *dev) } if (bdrv_get_type_hint(s->bs) == BDRV_TYPE_CDROM) { - s->cluster_size = 4; + s->qdev.blocksize = 2048; } else { - s->cluster_size = 1; + s->qdev.blocksize = s->qdev.conf.logical_block_size; } - s->qdev.blocksize = 512 * s->cluster_size; + s->cluster_size = s->qdev.blocksize / 512; + s->qdev.type = TYPE_DISK; bdrv_get_geometry(s->bs, &nb_sectors); nb_sectors /= s->cluster_size; diff --git a/hw/virtio-blk.c b/hw/virtio-blk.c index 8939bb2..9915840 100644 --- a/hw/virtio-blk.c +++ b/hw/virtio-blk.c @@ -27,6 +27,7 @@ typedef struct VirtIOBlock void *rq; QEMUBH *bh; BlockConf *conf; + unsigned short sector_mask; } VirtIOBlock; static VirtIOBlock *to_virtio_blk(VirtIODevice *vdev) @@ -250,6 +251,11 @@ static void virtio_blk_handle_flush(VirtIOBlockReq *req) static void virtio_blk_handle_write(BlockRequest *blkreq, int *num_writes, VirtIOBlockReq *req, BlockDriverState **old_bs) { + if (req->out->sector & req->dev->sector_mask) { + virtio_blk_rw_complete(req, -EIO); + return; + } + if (req->dev->bs != *old_bs || *num_writes == 32) { if (*old_bs != NULL) { do_multiwrite(*old_bs, blkreq, *num_writes); @@ -272,6 +278,11 @@ static void virtio_blk_handle_read(VirtIOBlockReq *req) { BlockDriverAIOCB *acb; + if (req->out->sector & req->dev->sector_mask) { + virtio_blk_rw_complete(req, -EIO); + return; + } + acb = bdrv_aio_readv(req->dev->bs, req->out->sector, &req->qiov, req->qiov.size / 512, virtio_blk_rw_complete, req); if (!acb) { @@ -404,12 +415,13 @@ static void virtio_blk_update_config(VirtIODevice *vdev, uint8_t *config) stl_raw(&blkcfg.seg_max, 128 - 2); stw_raw(&blkcfg.cylinders, cylinders); blkcfg.heads = heads; - blkcfg.sectors = secs; + blkcfg.sectors = secs & ~s->sector_mask; + blkcfg.blk_size = s->conf->logical_block_size; blkcfg.size_max = 0; blkcfg.physical_block_exp = get_physical_block_exp(s->conf); blkcfg.alignment_offset = 0; - blkcfg.min_io_size = s->conf->min_io_size / 512; - blkcfg.opt_io_size = s->conf->opt_io_size / 512; + blkcfg.min_io_size = s->conf->min_io_size / blkcfg.blk_size; + blkcfg.opt_io_size = s->conf->opt_io_size / blkcfg.blk_size; memcpy(config, &blkcfg, sizeof(struct virtio_blk_config)); } @@ -420,6 +432,7 @@ static uint32_t virtio_blk_get_features(VirtIODevice *vdev, uint32_t features) features |= (1 << VIRTIO_BLK_F_SEG_MAX); features |= (1 << VIRTIO_BLK_F_GEOMETRY); features |= (1 << VIRTIO_BLK_F_TOPOLOGY); + features |= (1 << VIRTIO_BLK_F_BLK_SIZE); if (bdrv_enable_write_cache(s->bs)) features |= (1 << VIRTIO_BLK_F_WCACHE); @@ -479,6 +492,7 @@ VirtIODevice *virtio_blk_init(DeviceState *dev, BlockConf *conf) s->bs = conf->dinfo->bdrv; s->conf = conf; s->rq = NULL; + s->sector_mask = (s->conf->logical_block_size / 512) - 1; bdrv_guess_geometry(s->bs, &cylinders, &heads, &secs); bdrv_set_geometry_hint(s->bs, cylinders, heads, secs); diff --git a/hw/virtio-blk.h b/hw/virtio-blk.h index f675375..7a7ece3 100644 --- a/hw/virtio-blk.h +++ b/hw/virtio-blk.h @@ -42,7 +42,7 @@ struct virtio_blk_config uint16_t cylinders; uint8_t heads; uint8_t sectors; - uint32_t _blk_size; /* structure pad, currently unused */ + uint32_t blk_size; uint8_t physical_block_exp; uint8_t alignment_offset; uint16_t min_io_size; |