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

* icount fix (Clement)
* dumping fixes for non-volatile memory (Marc-André, myself)
* x86 emulation fix (Rudolf)
* recent Hyper-V CPUID flag (Vitaly)
* Q35 doc fix (Daniel)
* lsi fix (Prasad)
* SCSI block limits emulation fixes (myself)
* qemu_thread_atexit rework (Peter)
* ivshmem memory leak fix (Igor)

# gpg: Signature made Tue 06 Nov 2018 21:34:30 GMT
# gpg:                using RSA key BFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>"
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* remotes/bonzini/tags/for-upstream:
  util/qemu-thread-posix: Fix qemu_thread_atexit* for OSX
  include/qemu/thread.h: Document qemu_thread_atexit* API
  scsi-generic: do not do VPD emulation for sense other than ILLEGAL_REQUEST
  scsi-generic: avoid invalid access to struct when emulating block limits
  scsi-generic: avoid out-of-bounds access to VPD page list
  scsi-generic: keep VPD page list sorted
  lsi53c895a: check message length value is valid
  scripts/dump-guest-memory: Synchronize with guest_phys_blocks_region_add
  memory-mapping: skip non-volatile memory regions in GuestPhysBlockList
  nvdimm: set non-volatile on the memory region
  memory: learn about non-volatile memory region
  target/i386: Clear RF on SYSCALL instruction
  MAINTAINERS: remove or downgrade myself to reviewer from some subsystems
  ivshmem: fix memory backend leak
  i386: clarify that the Q35 machine type implements a P35 chipset
  x86: hv_evmcs CPU flag support
  icount: fix deadlock when all cpus are sleeping

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

1 files changed, 42 insertions, 0 deletions

diff --git a/hw/scsi/emulation.c b/hw/scsi/emulation.c
new file mode 100644
index 0000000000..06d62f3c38
--- /dev/null
+++ b/hw/scsi/emulation.c
@@ -0,0 +1,42 @@
+#include "qemu/osdep.h"
+#include "qemu/units.h"
+#include "qemu/bswap.h"
+#include "hw/scsi/emulation.h"
+
+int scsi_emulate_block_limits(uint8_t *outbuf, const SCSIBlockLimits *bl)
+{
+    /* required VPD size with unmap support */
+    memset(outbuf, 0, 0x3c);
+
+    outbuf[0] = bl->wsnz; /* wsnz */
+
+    if (bl->max_io_sectors) {
+        /* optimal transfer length granularity.  This field and the optimal
+         * transfer length can't be greater than maximum transfer length.
+         */
+        stw_be_p(outbuf + 2, MIN(bl->min_io_size, bl->max_io_sectors));
+
+        /* maximum transfer length */
+        stl_be_p(outbuf + 4, bl->max_io_sectors);
+
+        /* optimal transfer length */
+        stl_be_p(outbuf + 8, MIN(bl->opt_io_size, bl->max_io_sectors));
+    } else {
+        stw_be_p(outbuf + 2, bl->min_io_size);
+        stl_be_p(outbuf + 8, bl->opt_io_size);
+    }
+
+    /* max unmap LBA count */
+    stl_be_p(outbuf + 16, bl->max_unmap_sectors);
+
+    /* max unmap descriptors */
+    stl_be_p(outbuf + 20, bl->max_unmap_descr);
+
+    /* optimal unmap granularity; alignment is zero */
+    stl_be_p(outbuf + 24, bl->unmap_sectors);
+
+    /* max write same size, make it the same as maximum transfer length */
+    stl_be_p(outbuf + 36, bl->max_io_sectors);
+
+    return 0x3c;
+}