Commit Graph

8843 Commits

Author SHA1 Message Date
Stefan Weil
09a021fb7c hw/tpci200: Fix compiler warning (redefined symbol with MinGW)
STATUS_TIMEOUT is defined in winnt.h:

  CC    hw/tpci200.o
hw/tpci200.c:34:0:
 warning: "STATUS_TIMEOUT" redefined [enabled by default]
/usr/lib/gcc/x86_64-w64-mingw32/4.6/../../../../x86_64-w64-mingw32/include/winnt.h:1036:0:
 note: this is the location of the previous definition

Use STATUS_TIME instead of STATUS_TIMEOUT as suggested by Alberto Garcia.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-01-21 11:39:15 +01:00
Michael Tokarev
5facfb4934 acpitable: open the data file in binary mode
-acpitable {file|data}=file reads the content of file, but it is
in binary form, so the file should be opened usin O_BINARY flag.
On *nix it is a no-op, but on windows and other weird platform
it is really needed.

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-01-21 11:08:05 +01:00
Stefan Weil
d0f54533eb hw: Spelling fix in log message
defineition -> definition

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Andreas F=E4rber <afaerber@suse.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-01-21 11:08:05 +01:00
Anthony Liguori
8b17ed4caa Merge remote-tracking branch 'stefanha/block' into staging
# By Kevin Wolf (4) and others
# Via Stefan Hajnoczi
* stefanha/block:
  dataplane: support viostor virtio-pci status bit setting
  dataplane: avoid reentrancy during virtio_blk_data_plane_stop()
  win32-aio: use iov utility functions instead of open-coding them
  win32-aio: Fix memory leak
  win32-aio: Fix vectored reads
  aio: Fix return value of aio_poll()
  ide: Remove wrong assertion
  block: fix null-pointer bug on error case in block commit
2013-01-20 11:01:10 -06:00
Stefan Weil
c1db29199e usb: Fix compilation for MinGW (regression)
84f2d0ea added an argument to function usb_host_info.
The stub function must match the declaration in usb.h.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-01-19 10:30:02 +00:00
Markus Armbruster
0e7a759293 vl: Use size_t for sizes in get_boot_devices_list()
Code mixes uint32_t, int and size_t.  Very unlikely to go wrong in
practice, but clean it up anyway.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-01-19 10:22:48 +00:00
Markus Armbruster
089da572b9 fw_cfg: Use void *, size_t instead of uint8_t *, uint32_t for blobs
Many callers pass size_t, which gets silently truncated to uint32_t.
Harmless, because all practical sizes are well below 4GiB.  Clean it
up anyway.  Size overflow now fails assertions.

Bonus: saves a whole bunch of silly casts.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-01-19 10:22:44 +00:00
Markus Armbruster
b3dd15529d pc: Clean up bochs_bios_init()'s (non-)use of sizeof
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-01-19 10:22:43 +00:00
Markus Armbruster
0e0d2d6295 sun4: Fix unchecked strdup() by switching to fw_cfg_add_string()
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-01-19 10:22:42 +00:00
Markus Armbruster
96f8058629 pc: Fix unchecked strdup() by switching to fw_cfg_add_string()
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-01-19 10:22:41 +00:00
Markus Armbruster
44687f7543 fw_cfg: New fw_cfg_add_string()
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-01-19 10:22:41 +00:00
Markus Armbruster
4cad3867b6 fw_cfg: Dumb down fw_cfg_add_*() not to return success / failure
No caller is checking the value, so all errors get ignored, usually
silently.  assert() instead.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-01-19 10:22:40 +00:00
Markus Armbruster
f6e3534327 fw_cfg: Replace debug prints by tracepoints
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-01-19 10:22:39 +00:00
Blue Swirl
75f0585f17 Merge branch 'ppc-for-upstream' of git://repo.or.cz/qemu/agraf
* 'ppc-for-upstream' of git://repo.or.cz/qemu/agraf:
  PPC: KVM: Add support for EPR with KVM
  openpic: export e500 epr enable into a ppc.c function
  Update Linux kernel headers
  PPC: e500: Change in-memory order of load blobs
  PPC: Provide zero SVR for -cpu e500mc and e5500
  PPC: E500: Calculate loading blob offsets properly
  openpic: set mixed mode as supported
  openpic: unify gcr mode mask updates
  openpic: move gcr write into a function
2013-01-19 09:56:41 +00:00
Cornelia Huck
28e942f86d s390: Add a hypercall registration interface.
Allow virtio machines to register for different diag500 function
codes and convert s390-virtio to use it.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-18 19:07:47 +01:00
Viktor Mihajlovski
904e5fd5c2 S390: Enable -cpu help and QMP query-cpu-definitions
This enables qemu -cpu help to return a list of supported CPU models
on s390 and also to query for cpu definitions in the monitor.
Initially only cpu model = host is returned. This needs to be reworked
into a full-fledged CPU model handling later on.
This change is needed to allow libvirt exploiters (like OpenStack)
to specify a CPU model.

Signed-off-by: Viktor Mihajlovski <mihajlov@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
[agraf: fix s390x-linux-user, adjust header locations]
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-18 19:07:47 +01:00
Christian Borntraeger
e674a49aae s390: Move IPL code into a separate device
Lets move the code to setup IPL for external kernel
or via the zipl rom into a separate file. This allows to

- define a reboot handler, setting up the PSW appropriately
- enhance the boot code to IPL disks that contain a bootmap that
  was created with zipl under LPAR or z/VM (future patch)
- reuse that code for several machines (e.g. virtio-ccw and virtio-s390)
- allow different machines to provide different defaults

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
[agraf: symbolify initial psw, adjust header file location, fix for QOM]
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-18 19:07:47 +01:00
Alexander Graf
5b95b8b9c1 PPC: KVM: Add support for EPR with KVM
This patch links KVM EPR support to the existing TCG support we have now.

Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-18 19:06:57 +01:00
Alexander Graf
e49798b1bd openpic: export e500 epr enable into a ppc.c function
Enabling and disabling the EPR capability (mpic_proxy) is a system
wide operation. As such, it belongs into the ppc.c file, since that's
where PPC specific machine wide logic happens.

Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-18 19:06:57 +01:00
Alexander Graf
b8dec1443e PPC: e500: Change in-memory order of load blobs
Today, we load

  <kernel> <initrd> <dtb>

into memory in that order. However, Linux has a bug where it can only
handle the dtb if it's within the first 64MB of where <kernel> starts.

So instead, let's change the order to

  <kernel> <dtb> <initrd>

making Linux happy.

Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-18 19:06:57 +01:00
Alexander Graf
528e536ea2 PPC: E500: Calculate loading blob offsets properly
We have 3 blobs we need to load when booting the system:

  - kernel
  - initrd
  - dtb

We place them in physical memory in that order. At least we should.
This patch fixes the location calculation up to take any module into
account, fixing the dtb offset along the way.

Reported-by: Stuart Yoder <stuart.yoder@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-18 19:06:57 +01:00
Alexander Graf
86e56a885a openpic: set mixed mode as supported
The Raven MPIC implementation supports the "Mixed" mode to work with
an i8259. While we don't implement mixed mode, we should mark it as
a supported mode in the mode bitmap.

Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-18 19:06:56 +01:00
Alexander Graf
1ac3d71302 openpic: unify gcr mode mask updates
The mode mask already masks out bits we don't care about, so the
actual handling code can stay intact regardless.

Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-18 19:06:56 +01:00
Alexander Graf
7f11573b9f openpic: move gcr write into a function
The GCR register contains too much functionality to be covered inside
of the register switch statement. Move it out into a separate function.

Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-18 19:06:56 +01:00
Stefan Hajnoczi
cf139388ad dataplane: support viostor virtio-pci status bit setting
The viostor virtio-blk driver for Windows does not use the
VIRTIO_CONFIG_S_DRIVER bit.  It only sets the VIRTIO_CONFIG_S_DRIVER_OK
bit.

The viostor driver refreshes the virtio-pci status byte sometimes while
the guest is running.  We misinterpret 0x4 (VIRTIO_CONFIG_S_DRIVER_OK)
as an indication that virtio-blk-data-plane should be stopped since 0x2
(VIRTIO_CONFIG_S_DRIVER) is missing.  The result is that the device
becomes unresponsive.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-01-18 16:59:20 +01:00
Stefan Hajnoczi
cd7fdfe59f dataplane: avoid reentrancy during virtio_blk_data_plane_stop()
When dataplane is stopping, the s->vdev->binding->set_host_notifier(...,
false) call can invoke the virtqueue handler if an ioeventfd
notification is pending.  This causes hw/virtio-blk.c to invoke
virtio_blk_data_plane_start() before virtio_blk_data_plane_stop()
returns!

The result is that we try to restart dataplane while trying to stop it
and the following assertion is raised:

  msix_set_mask_notifier: Assertion `!dev->msix_mask_notifier' failed.

Although the code was intended to prevent this scenario, the s->started
boolean isn't enough.  Add s->stopping so that we can postpone clearing
s->started until we've completely stopped dataplane.

This way, virtqueue handler calls during virtio_blk_data_plane_stop()
are ignored.  When dataplane is legitimately started again later we
already self-kick ourselves to resume processing.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-01-18 16:57:59 +01:00
Anthony Liguori
ddc01bf16e Merge remote-tracking branch 'luiz/queue/qmp' into staging
# By Wenchao Xia
# Via Luiz Capitulino
* luiz/queue/qmp:
  HMP: add sub command table to info
  HMP: move define of mon_cmds
  HMP: add infrastructure for sub command
  HMP: delete info handler
  HMP: add QDict to info callback handler
2013-01-17 13:09:57 -06:00
Michael S. Tsirkin
e387f99ebc virtio-pci: fix irqfd cleanup argument order
Order of arguments of kvm_virtio_pci_irqfd_release
got mixed up in all calls.
As a result users see assertions during cleanup.

Reported-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Tested-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-01-17 09:45:52 -06:00
Andreas Färber
782beb5239 qom: Extend documentation on QOM method concepts
Add a documentation section "Methods" and discuss among others how to
handle overriding virtual methods.

Clarify DeviceClass::realize documentation and refer to the above.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-01-17 07:33:16 -06:00
Wenchao Xia
84f2d0ea0f HMP: add QDict to info callback handler
This patch change all info call back function to take
additional QDict * parameter, which allow those command
take parameter. Now it is set to NULL at default case.

Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2013-01-17 10:24:52 -02:00
Kevin Wolf
6bf3ee07ff ide: Remove wrong assertion
The Bus Master IDE Active bit (BM_STATUS_DMAING) is not only set when
the request is still in flight, but also when it has completed and the
size of the physical memory regions in the PRDT was larger than the
transfer size.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-01-17 10:51:11 +01:00
Andreas Färber
eb60d1c552 tmp105: Add temperature QOM property
This obsoletes tmp105_set() and allows for better error handling.

Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-01-16 12:14:20 -06:00
Andreas Färber
2aad80eeb7 tmp105: QOM'ify
Introduce TYPE_ constant and cast macro.
Move the state struct to the new header to allow for future embedding.

Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-01-16 12:14:20 -06:00
Andreas Färber
cb5ef3fa18 tmp105: Fix I2C protocol bug
An early length postincrement in the TMP105's I2C TX path led to
transfers of more than one byte to place the second byte in the third
byte's place within the buffer and the third byte to get discarded.

Fix this by explictly incrementing the length after the checks but
before the callback is called, which again checks the length.

Adjust the Coding Style while at it.

Signed-off-by: Alex Horn <alex.horn@cs.ox.ac.uk>
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-01-16 12:14:20 -06:00
Andreas Färber
6d0b430176 tmp105: Split out I2C message constants from header
Allows value sharing with qtest.

Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-01-16 12:14:20 -06:00
Markus Armbruster
a1cbfd554e usb-storage: Drop useless null test in usb_msd_handle_data()
scsi_req_new() never returns null, and scsi_req_enqueue() dereferences
the pointer, so checking for null is useless.

Spotted by Coverity.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-01-16 12:03:15 -06:00
Stefan Weil
4ecf8aa5a0 pseries: Replace non-portable asprintf by g_strdup_printf
g_strdup_printf already handles OOM errors, so some error handling in
QEMU code can be removed.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-01-16 12:02:30 -06:00
Knut Omang
b8e76b35d4 Add new DEFAULT_MACHINE_OPTIONS to q35 and ppc405
Without this default q35/ppc405 based machines would no longer boot
after commit e4ada29e90

Signed-off-by: Knut Omang <knut.omang@oracle.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-01-16 11:49:05 -06:00
Andreas Färber
249d41720b qdev: Prepare "realized" property
Introduce the QOM realizefn suggested by Anthony.
Detailed documentation is supplied in the qdev header.

For now this implements a default DeviceClass::realize callback that
just wraps DeviceClass::init, which it deprecates.
Once all devices have been converted to DeviceClass::realize,
DeviceClass::init is to be removed.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Cc: Anthony Liguori <anthony@codemonkey.ws>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-01-15 18:27:00 -06:00
Andreas Färber
7983c8a335 qdev: Fold state enum into bool realized
Whether the device was initialized or not is QOM-level information and
currently unused. Drop it from device. This leaves the boolean state of
whether or not DeviceClass::init was called or not, a.k.a. "realized".

Suggested-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-01-15 18:26:30 -06:00
Avik Sil
2c9ee0291f pseries: set no default boot order
This patch removes the default boot order for pseries machine. This allows
the machine to handle a NULL boot order in case no -boot option is provided.
Thus it helps SLOF firmware to verify if boot order is specified in command
line or not. If no boot order is provided SLOF tries to boot from the
device set in the nvram.

Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Acked-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avik Sil <aviksil@linux.vnet.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-01-15 18:26:18 -06:00
Avik Sil
e4ada29e90 Make default boot order machine specific
This patch makes default boot order machine specific instead of
set globally. The default boot order can be set per machine in
QEMUMachine boot_order. This also allows a machine to receive a
NULL boot order when -boot isn't used and take an appropriate action
accordingly. This helps machine boots from the devices as set in
guest's non-volatile memory location in case no boot order is
provided by the user.

Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Avik Sil <aviksil@linux.vnet.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-01-15 18:26:18 -06:00
Anthony Liguori
8ec12ec734 Merge remote-tracking branch 'afaerber/memory-ioport' into staging
* afaerber/memory-ioport:
  acpi_piix4: Do not use old_portio-style callbacks
  xen_platform: Do not use old_portio-style callbacks
  hw/dma.c: Fix conversion of ioport_register* to MemoryRegion

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-01-15 16:54:41 -06:00
Anthony Liguori
b9f84ac0fa Merge remote-tracking branch 'stefanha/block' into staging
* stefanha/block:
  block: Fix how mirror_run() frees its buffer
  win32-aio: Fix how win32_aio_process_completion() frees buffer
  scsi-disk: qemu_vfree(NULL) is fine, simplify
  w32: Make qemu_vfree() accept NULL like the POSIX implementation
  sheepdog: clean up sd_aio_setup()
  sheepdog: multiplex the rw FD to flush cache
  block: clear dirty bitmap when discarding
  ide: issue discard asynchronously but serialize the pieces
  ide: fix TRIM with empty range entry
  block: make discard asynchronous
  raw: support discard on block devices
  raw-posix: remember whether discard failed
  raw-posix: support discard on more filesystems
  block: fix initialization in bdrv_io_limits_enable()
  qcow2: Fix segfault on zero-length write

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-01-15 16:52:56 -06:00
Anthony Liguori
c94bf1c107 Merge remote-tracking branch 'afaerber/qom-cpu' into staging
* afaerber/qom-cpu:
  target-i386: Use switch in check_hw_breakpoints()
  target-i386: Avoid goto in hw_breakpoint_insert()
  target-i386: Introduce hw_{local,global}_breakpoint_enabled()
  target-i386: Define DR7 bit field constants
  target-i386: Move kvm_check_features_against_host() check to realize time
  target-i386: cpu_x86_register() consolidate freeing resources
  target-i386: Move setting defaults out of cpu_x86_parse_featurestr()
  target-i386: check/enforce: Check all feature words
  target-i386/cpu.c: Add feature name array for ext4_features
  target-i386: kvm_check_features_against_host(): Use feature_word_info
  target-i386/cpu: Introduce FeatureWord typedefs
  target-i386: Disable kvm_mmu by default
  kvm: Add fake KVM constants to avoid #ifdefs on KVM-specific code
  exec: Return CPUState from qemu_get_cpu()
  xen: Simplify halting of first CPU
  kvm: Pass CPUState to kvm_init_vcpu()
  cpu: Move cpu_index field to CPUState
  cpu: Move numa_node field to CPUState
  target-mips: Clean up mips_cpu_map_tc() documentation
  cpu: Move nr_{cores,threads} fields to CPUState

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-01-15 16:52:39 -06:00
Anthony Liguori
bdb8872cc1 Merge remote-tracking branch 'afaerber-or/prep-up' into staging
* afaerber-or/prep-up:
  pc87312: Avoid define conflict on mingw32
  pc87312: Replace register_ioport_*() with MemoryRegion

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-01-15 16:52:10 -06:00
Anthony Liguori
5e72179b8f Merge remote-tracking branch 'sstabellini/xen-2013-01-14' into staging
* sstabellini/xen-2013-01-14:
  xen_disk: implement BLKIF_OP_FLUSH_DISKCACHE, remove BLKIF_OP_WRITE_BARRIER
  xen_disk: add persistent grant support to xen_disk backend
  xen_disk: fix memory leak

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-01-15 16:49:18 -06:00
Hervé Poussineau
c3a29809e4 acpi_piix4: Do not use old_portio-style callbacks
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
[AF: Used HWADDR_PRIx for hwaddr PIIX4_DPRINTF()]
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-01-15 19:45:45 +01:00
Hervé Poussineau
7a652efa1b xen_platform: Do not use old_portio-style callbacks
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-01-15 19:45:45 +01:00
Julien Grall
ecd584b836 hw/dma.c: Fix conversion of ioport_register* to MemoryRegion
The commit 5822993368 introduced a 1-shift for
some offset in DMA emulation.

Before the previous commit, which converted ioport_register_* to
MemoryRegion, the DMA controller registered 8 ioports with the following
formula:
base + ((8 + i) << d->shift) where 0 <= i < 8
When an IO occured within a Memory Region, DMA callback receives an
offset relative to the start address. Here the start address is:
base + (8 << d->shift).
The offset should be: (i << d->shift). After the shift is reverted, the
offsets are 0..7 not 1..8.

Fixes LP#1089996.

Reported-by: Andreas Gustafsson <gson@gson.org>
Signed-off-by: Julien Grall <julien.grall@citrix.com>
Tested-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-01-15 19:45:25 +01:00