Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* docs/atomics fixes and atomic_rcu_* optimization (Emilio)
* NBD bugfix (Eric)
* Memory fixes and cleanups (Paolo, Paul)
* scsi-block support for SCSI status, including persistent
  reservations (Paolo)
* kvm_stat moves to the Linux repository
* SCSI bug fixes (Peter, Prasad)
* Killing qemu_char_get_next_serial, non-ARM parts (Xiaoqiang)

# gpg: Signature made Sun 29 May 2016 08:11:20 BST using RSA key ID 78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>"

* remotes/bonzini/tags/for-upstream: (30 commits)
  exec: hide mr->ram_addr from qemu_get_ram_ptr users
  memory: split memory_region_from_host from qemu_ram_addr_from_host
  exec: remove ram_addr argument from qemu_ram_block_from_host
  memory: remove qemu_get_ram_fd, qemu_set_ram_fd, qemu_ram_block_host_ptr
  scsi-generic: Merge block max xfer len in INQUIRY response
  scsi-block: always use SG_IO
  scsi-disk: introduce scsi_disk_req_check_error
  scsi-disk: add need_fua_emulation to SCSIDiskClass
  scsi-disk: introduce dma_readv and dma_writev
  scsi-disk: introduce a common base class
  xen-hvm: ignore background I/O sections
  docs/atomics: update comparison with Linux
  atomics: do not emit consume barrier for atomic_rcu_read
  atomics: emit an smp_read_barrier_depends() barrier only for Alpha and Thread Sanitizer
  docs/atomics: update atomic_read/set comparison with Linux
  bt: rewrite csrhci_write to avoid out-of-bounds writes
  block/iscsi: avoid potential overflow of acb->task->cdb
  scsi: megasas: check 'read_queue_head' index value
  scsi: megasas: initialise local configuration data buffer
  scsi: megasas: use appropriate property buffer size
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 12 insertions, 0 deletions

diff --git a/hw/scsi/scsi-generic.c b/hw/scsi/scsi-generic.c
index 7459465f60..71372a8383 100644
--- a/hw/scsi/scsi-generic.c
+++ b/hw/scsi/scsi-generic.c
@@ -222,6 +222,18 @@ static void scsi_read_complete(void * opaque, int ret)
             r->buf[3] |= 0x80;
         }
     }
+    if (s->type == TYPE_DISK &&
+        r->req.cmd.buf[0] == INQUIRY &&
+        r->req.cmd.buf[2] == 0xb0) {
+        uint32_t max_xfer_len = blk_get_max_transfer_length(s->conf.blk);
+        if (max_xfer_len) {
+            stl_be_p(&r->buf[8], max_xfer_len);
+            /* Also take care of the opt xfer len. */
+            if (ldl_be_p(&r->buf[12]) > max_xfer_len) {
+                stl_be_p(&r->buf[12], max_xfer_len);
+            }
+        }
+    }
     scsi_req_data(&r->req, len);
     scsi_req_unref(&r->req);
 }