diff options
Diffstat (limited to 'hw/scsi-disk.c')
| -rw-r--r-- | hw/scsi-disk.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/hw/scsi-disk.c b/hw/scsi-disk.c index 2a571a0f16..89b44c31b7 100644 --- a/hw/scsi-disk.c +++ b/hw/scsi-disk.c @@ -47,11 +47,11 @@ do { fprintf(stderr, "scsi-disk: " fmt , ##args); } while (0) typedef struct SCSIRequest { SCSIDeviceState *dev; uint32_t tag; - /* ??? We should probably keep track of whether the data trasfer is + /* ??? We should probably keep track of whether the data transfer is a read or a write. Currently we rely on the host getting it right. */ /* Both sector and sector_count are in terms of qemu 512 byte blocks. */ - int sector; - int sector_count; + uint64_t sector; + uint32_t sector_count; /* The amounnt of data in the buffer. */ int buf_len; uint8_t *dma_buf; @@ -731,6 +731,9 @@ static int32_t scsi_send_command(SCSIDevice *d, uint32_t tag, /* Returned value is the address of the last sector. */ if (nb_sectors) { nb_sectors--; + /* Clip to 2TB, instead of returning capacity modulo 2TB. */ + if (nb_sectors > UINT32_MAX) + nb_sectors = UINT32_MAX; outbuf[0] = (nb_sectors >> 24) & 0xff; outbuf[1] = (nb_sectors >> 16) & 0xff; outbuf[2] = (nb_sectors >> 8) & 0xff; |