diff options
author | Avi Kivity <avi@redhat.com> | 2012-07-16 10:52:03 +0300 |
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committer | Avi Kivity <avi@redhat.com> | 2012-07-16 10:52:03 +0300 |
commit | 7fa12eb15f95c269f488fce4096093c96dbaffab (patch) | |
tree | 8ca766bebdead1ae21819bdc691b1097008ae834 /hw/virtio-blk.c | |
parent | 6f82a5ea52302bab33287b0191538be6f9138637 (diff) | |
parent | 785adb09b9fd0d4df6707f00247ec519c42fcfc6 (diff) |
Merge tag 'v1.1.1' into stable-1.1qemu-kvm-1.1.1
* tag 'v1.1.1': (34 commits)
update VERSION for v1.1.1
s390x: fix s390 virtio aliases
rtl8139: validate rx ring before receiving packets
ahci: SATA FIS is 20 bytes, not 0x20
qemu-img: document qed format on qemu-img man page
virtio: Fix compiler warning for non Linux hosts
sheepdog: fix return value of do_load_save_vm_state
qemu/xendisk: set maximum number of grants to be used
build: install qmp-commands.txt
fdc: fix implied seek while there is no media in drive
qcow2: fix autoclear image header update
Prevent disk data loss when closing qemu
qcow2: fix endianness conversion
pci_bridge_dev: fix error path in pci_bridge_dev_initfn()
qdev: release parent properties on dc->init failure
intel-hda: Fix reset of MSI function
ahci: Fix reset of MSI function
rtl8139: honor RxOverflow flag in can_receive method
configure: Fix build for some versions of glibc (9pfs)
monitor: Fix memory leak with readline completion
...
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'hw/virtio-blk.c')
-rw-r--r-- | hw/virtio-blk.c | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/hw/virtio-blk.c b/hw/virtio-blk.c index f9e1896ea..fe0774617 100644 --- a/hw/virtio-blk.c +++ b/hw/virtio-blk.c @@ -147,9 +147,11 @@ static VirtIOBlockReq *virtio_blk_get_request(VirtIOBlock *s) static void virtio_blk_handle_scsi(VirtIOBlockReq *req) { +#ifdef __linux__ int ret; - int status = VIRTIO_BLK_S_OK; int i; +#endif + int status = VIRTIO_BLK_S_OK; /* * We require at least one output segment each for the virtio_blk_outhdr @@ -489,7 +491,22 @@ static void virtio_blk_update_config(VirtIODevice *vdev, uint8_t *config) stw_raw(&blkcfg.min_io_size, s->conf->min_io_size / blk_size); stw_raw(&blkcfg.opt_io_size, s->conf->opt_io_size / blk_size); blkcfg.heads = heads; - blkcfg.sectors = secs & ~s->sector_mask; + /* + * We must ensure that the block device capacity is a multiple of + * the logical block size. If that is not the case, lets use + * sector_mask to adopt the geometry to have a correct picture. + * For those devices where the capacity is ok for the given geometry + * we dont touch the sector value of the geometry, since some devices + * (like s390 dasd) need a specific value. Here the capacity is already + * cyls*heads*secs*blk_size and the sector value is not block size + * divided by 512 - instead it is the amount of blk_size blocks + * per track (cylinder). + */ + if (bdrv_getlength(s->bs) / heads / secs % blk_size) { + blkcfg.sectors = secs & ~s->sector_mask; + } else { + blkcfg.sectors = secs; + } blkcfg.size_max = 0; blkcfg.physical_block_exp = get_physical_block_exp(s->conf); blkcfg.alignment_offset = 0; |