Commit 72ecb8d9dd339d8c7f3227b25b98b726e3933ebd
1 parent
4f26a486
scsi-generic: correct 6-bytes commands transfer length (Laurent Vivier)
According to SCSI documentation, for 6 bytes commands (READ(6), WRITE(6)), if transfer length is 0 it specifies 256 blocks. Signed-off-by: Laurent Vivier <Laurent.Vivier@bull.net> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5292 c046a42c-6fe2-441c-8c8c-71466251a162
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hw/scsi-generic.c
| @@ -352,6 +352,9 @@ static int scsi_length(uint8_t *cmd, int blocksize, int *cmdlen, uint32_t *len) | @@ -352,6 +352,9 @@ static int scsi_length(uint8_t *cmd, int blocksize, int *cmdlen, uint32_t *len) | ||
| 352 | case 0: | 352 | case 0: |
| 353 | *len = cmd[4]; | 353 | *len = cmd[4]; |
| 354 | *cmdlen = 6; | 354 | *cmdlen = 6; |
| 355 | + /* length 0 means 256 blocks */ | ||
| 356 | + if (*len == 0) | ||
| 357 | + *len = 256; | ||
| 355 | break; | 358 | break; |
| 356 | case 1: | 359 | case 1: |
| 357 | case 2: | 360 | case 2: |