Commit Graph

33135 Commits

Author SHA1 Message Date
dac23a6c05 tests/acpi-test: do not fail if iasl is broken
There is an issue with iasl on big endian machines: It
cannot disassemble acpi tables taken from little endian
machines, so we cannot check the expected tables.

The acpi test will check if the expected aml files
can be disassembled, and will issue an warning not
failing the test on those machines until this
problem is solved by the acpica community.

Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-03-24 12:37:36 +02:00
b2c494c3a4 spice: input: Fix absolute mouse y coordinates
Current tablet + spice is unusable. Regressed with the UI input rework.

Signed-off-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-03-24 08:41:21 +01:00
3a87f8b685 Merge remote-tracking branch 'remotes/afaerber/tags/ppc-for-2.0' into staging
PowerPC queue for 2.0

* sPAPR loop fix
* SPR reset fix
* Reduce allocation size of indirect opcode tables
* Restrict number of CPU threads
* sPAPR H_SET_MODE fixes
* sPAPR firmware path fixes
* Static and constness cleanups

# gpg: Signature made Thu 20 Mar 2014 01:46:14 GMT using RSA key ID 3E7E013F
# gpg: Good signature from "Andreas Färber <afaerber@suse.de>"
# gpg:                 aka "Andreas Färber <afaerber@suse.com>"

* remotes/afaerber/tags/ppc-for-2.0:
  spapr: Implement interface to fix device pathname
  spapr: QOM'ify pseries machine
  spapr_vio: Fix firmware names
  spapr_llan: Add to boot device list
  qdev: Introduce FWPathProvider interface
  vl.c: Extend get_boot_devices_list() to ignore suffixes
  spapr_hcall: Fix little-endian resource handling in H_SET_MODE
  target-ppc: Introduce powerisa-207-server flag
  target-ppc: Force CPU threads count to be a power of 2
  target-ppc: Fix overallocation of opcode tables
  target-ppc: Reset SPRs on CPU reset
  spapr_hcall: Fix h_enter to loop correctly
  target-ppc: Add missing 'static' and 'const' attributes

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-03-20 11:45:38 +00:00
71461b0fef spapr: Implement interface to fix device pathname
This extends the pseries machine type with the interface to fix firmware
pathnames for devices which have @bootindex property.

This fixes SCSI disks' device node names (which are wildcard nodes in
the device-tree), for spapr-vscsi, virtio-scsi and usb-storage.

This fixes PHB name from "pci" to "pci@XXXX" where XXXX is a BUID as
there is no bus on top of sPAPRPHBState where PHB firmware name could
be fixed using the BusClass::get_fw_dev_path() mechanism.

This stores the boot list in the /chosen/qemu,boot-list property of
the device tree. "\n" are replaced by spaces to support OF1275.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-20 02:40:26 +01:00
29ee324740 spapr: QOM'ify pseries machine
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-20 02:40:13 +01:00
5a06393f1d spapr_vio: Fix firmware names
This changes VIO bridge fw name from spapr-vio-bridge to vdevice and
vscsi/veth node names from QEMU object names to VIO specific device tree
names.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-20 02:40:13 +01:00
ad4f62d015 spapr_llan: Add to boot device list
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-20 02:40:13 +01:00
6b1566cbe3 qdev: Introduce FWPathProvider interface
QEMU supports firmware names for all devices in the QEMU tree but
some architectures expect some parts of firmware path names in different
format.

This introduces a firmware-pathname-change interface definition.
If some machines needs to redefine the firmware path format, it has
to add the TYPE_FW_PATH_PROVIDER interface to an object that is above
the device on the QOM tree (typically /machine).

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-20 02:40:13 +01:00
30e32af746 vl.c: Extend get_boot_devices_list() to ignore suffixes
As suffixes do not make sense for sPAPR's device tree and
there is no way to filter them out on the BusState::get_fw_dev_path()
level, let's add an ability for the external caller to specify
whether to apply suffixes or not.

We could handle suffixes in SLOF (ignored for now) but this would require
serious rework in the node opening code in SLOF, which has no obvious
benefit for the currently emulated sPAPR machine.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-20 02:40:07 +01:00
a46622fd07 spapr_hcall: Fix little-endian resource handling in H_SET_MODE
This changes resource code definitions to ones used in the host kernel.

This fixes H_SET_MODE_RESOURCE_LE (switch between big endian and
little endian) to sync registers from KVM before changing LPCR value.

This adds a set_spr() helper to update an SPR in a CPU's context to avoid
possible races and makes use of it to change LPCR.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-20 02:39:33 +01:00
df99d30d4e target-ppc: Introduce powerisa-207-server flag
This flag will be used to decide whether to emulate some bits of
H_SET_MODE hypercall because some are POWER8-only.

While we are here, add 2.05 flag to POWER8 family too. POWER7/7+ already
have it.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-20 02:39:33 +01:00
5ec83c73e5 target-ppc: Force CPU threads count to be a power of 2
PowerPC kernel expects the number of SMT threads in a core to be a power
of 2. Since QEMU doesn't enforce this, it leads to an early guest kernel
crash if invalid threads count is specified.

Prevent this crash and make it a graceful exit from QEMU itself by
validating the user-supplied threads count.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stewart Smith <stewart@linux.vnet.ibm.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-20 02:39:33 +01:00
a80172a476 target-ppc: Fix overallocation of opcode tables
create_new_table() should allocate 0x20 opc_handler_t pointers, but
actually allocates 0x20 opc_handler_t structs.  Fix this.

Signed-off-by: Stuart Brady <sdb@zubnet.me.uk>
Reviewed-by: Tom Musta <tommusta@gmail.com>
Tested-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-20 02:39:33 +01:00
d197fdbc3b target-ppc: Reset SPRs on CPU reset
This resets SPR values to defaults on CPU reset. This should help
with little-endian guests reboot issues.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-20 02:39:33 +01:00
7aaf4957ef spapr_hcall: Fix h_enter to loop correctly
We wanted to loop till index is 8. On 8 we return with H_PTEG_FULL. If we
are successful in loading hpte with any other index, we continue with that
index value.

Reported-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-20 02:39:23 +01:00
06c1bee85a Merge remote-tracking branch 'remotes/afaerber/tags/prep-for-2.0' into staging
PReP machine and devices

* Raven PCI host bridge memory fixes (remainder)

# gpg: Signature made Wed 19 Mar 2014 23:35:08 GMT using RSA key ID 3E7E013F
# gpg: Good signature from "Andreas Färber <afaerber@suse.de>"
# gpg:                 aka "Andreas Färber <afaerber@suse.com>"

* remotes/afaerber/tags/prep-for-2.0:
  raven: Use raven_ for all function prefixes
  raven: Fix PCI bus accesses with size > 1
  raven: Add PCI bus mastering address space
  raven: Set a correct PCI memory region
  raven: Set a correct PCI I/O memory region
  raven: Implement non-contiguous I/O region
  raven: Rename intack region to pci_intack

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-03-19 23:34:43 +00:00
f205da688b raven: Use raven_ for all function prefixes
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
2014-03-20 00:34:21 +01:00
2403837e67 raven: Fix PCI bus accesses with size > 1
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Reviewed-by: Artyom Tarasenko <atar4qemu@gmail.com>
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
2014-03-20 00:34:16 +01:00
d16644ec4c raven: Add PCI bus mastering address space
This has been tested on Linux 2.4/PPC with the lsi53c895a SCSI adapter.

Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
2014-03-20 00:33:17 +01:00
1fe9e2626f raven: Set a correct PCI memory region
PCI memory region is 0x3f000000 bytes starting at 0xc0000000.

However, keep compatibility with Open Hack'Ware expectations
by adding a hack for Open Hack'Ware display.

Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
2014-03-20 00:33:17 +01:00
1ae1dc5ba2 raven: Set a correct PCI I/O memory region
PCI I/O region is 0x3f800000 bytes starting at 0x80000000.
Do not use global QEMU I/O region, which is only 64KB.

Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
2014-03-20 00:33:17 +01:00
9a1839164c raven: Implement non-contiguous I/O region
Remove now duplicated code from prep board.

Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
2014-03-20 00:33:16 +01:00
49a4e21251 raven: Rename intack region to pci_intack
Regions added subsequently will also have the pci_ prefix.

Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
2014-03-20 00:33:16 +01:00
d1a1451cd3 Merge remote-tracking branch 'remotes/afaerber/tags/qom-cpu-for-2.0' into staging
QOM CPUState refactorings / X86CPU

* CPUState layout optimization for TCG

# gpg: Signature made Wed 19 Mar 2014 21:51:46 GMT using RSA key ID 3E7E013F
# gpg: Good signature from "Andreas Färber <afaerber@suse.de>"
# gpg:                 aka "Andreas Färber <afaerber@suse.com>"

* remotes/afaerber/tags/qom-cpu-for-2.0:
  cpu: Move tcg_exit_req to the end of CPUState

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-03-19 22:36:44 +00:00
037b7addb7 Merge remote-tracking branch 'remotes/afaerber/tags/qom-devices-for-2.0' into staging
QOM/QTest infrastructure fixes

* QOM machine memory and build fixes
* QOM link<> and child<> property reference counting fixes

# gpg: Signature made Wed 19 Mar 2014 21:44:04 GMT using RSA key ID 3E7E013F
# gpg: Good signature from "Andreas Färber <afaerber@suse.de>"
# gpg:                 aka "Andreas Färber <afaerber@suse.com>"

* remotes/afaerber/tags/qom-devices-for-2.0:
  virtio-rng: Avoid default_backend refcount leak
  qom: Add check() argument to object_property_add_link()
  qom: Make QOM link property unref optional
  qom: Don't make link NULL on object_property_set_link() failure
  qom: Split object_property_set_link()
  vl.c: Fix OpenBSD compilation issue due to namespace collisions
  vl.c: Fix memory leak in qemu_register_machine()

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-03-19 21:45:42 +00:00
abdffd1fb7 virtio-rng: Avoid default_backend refcount leak
QOM child properties take a reference to the object and release it when
the property is deleted.  Therefore we should unref the default_backend
after we have added it as a child property.

Cc: KONRAD Frederic <fred.konrad@greensocs.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-19 22:23:47 +01:00
39f72ef94b qom: Add check() argument to object_property_add_link()
There are currently three types of object_property_add_link() callers:

1. The link property may be set at any time.
2. The link property of a DeviceState instance may only be set before
   realize.
3. The link property may never be set, it is read-only.

Something similar can already be achieved with
object_property_add_str()'s set() argument.  Follow its example and add
a check() argument to object_property_add_link().

Also provide default check() functions for case #1 and #2.  Case #3 is
covered by passing a NULL function pointer.

Cc: Peter Crosthwaite <peter.crosthwaite@petalogix.com>
Cc: Alexander Graf <agraf@suse.de>
Cc: Anthony Liguori <aliguori@amazon.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
[AF: Tweaked documentation comment]
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-19 22:23:13 +01:00
7e4fb26d75 cpu: Move tcg_exit_req to the end of CPUState
Reverse an increase in the size of generated code.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-19 22:11:19 +01:00
9561fda8d9 qom: Make QOM link property unref optional
Some object_property_add_link() callers expect property deletion to
unref the link property object.  Other callers expect to manage the
refcount themselves.  The former are currently broken and therefore leak
the link property object.

This patch adds a flags argument to object_property_add_link() so the
caller can specify which refcount behavior they require.  The new
OBJ_PROP_LINK_UNREF_ON_RELEASE flag causes the link pointer to be
unreferenced when the property is deleted.

This fixes refcount leaks in qdev.c, xilinx_axidma.c, xilinx_axienet.c,
s390-virtio-bus.c, virtio-pci.c, virtio-rng.c, and ui/console.c.

Rationale for refcount behavior:

 * hw/core/qdev.c
   - bus children are explicitly unreferenced, don't interfere
   - parent_bus is essentially a read-only property that doesn't hold a
     refcount, don't unref
   - hotplug_handler is leaked, do unref

 * hw/dma/xilinx_axidma.c
   - rx stream "dma" links are set using set_link, therefore they
     need unref
   - tx streams are set using set_link, therefore they need unref

 * hw/net/xilinx_axienet.c
   - same reasoning as hw/dma/xilinx_axidma.c

 * hw/pcmcia/pxa2xx.c
   - pxa2xx bypasses set_link and therefore does not use refcounts

 * hw/s390x/s390-virtio-bus.c
 * hw/virtio/virtio-pci.c
 * hw/virtio/virtio-rng.c
 * ui/console.c
   - set_link is used and there is no explicit unref, do unref

Cc: Peter Crosthwaite <peter.crosthwaite@petalogix.com>
Cc: Alexander Graf <agraf@suse.de>
Cc: Anthony Liguori <aliguori@amazon.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-19 22:05:20 +01:00
c6aed98334 qom: Don't make link NULL on object_property_set_link() failure
The error behavior of object_property_set_link() is dangerous.  It sets
the link property object to NULL if an error occurs.  A setter function
should either succeed or fail, it shouldn't leave the value NULL on
failure.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-19 22:01:34 +01:00
f5ec6704c7 qom: Split object_property_set_link()
The path resolution logic in object_property_set_link() should be a
separate function.  This makes the code easier to read and maintain.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-19 22:01:13 +01:00
c8897e8eb9 vl.c: Fix OpenBSD compilation issue due to namespace collisions
Machine rewriting added MACHINE() macro which is
already in use by other OpenBSD library.
Since qemu/sockets.h exposes the OpenBSD namespace,
the minimalistic approach is to add it as the first QEMU include.

Reported-by: Brad Smith <brad@comstyle.com>
Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-19 21:00:34 +01:00
f5946dbab3 vl.c: Fix memory leak in qemu_register_machine()
Since commit 261747f176 (vl: Use MachineClass instead of global
QEMUMachine list) valgrind complains about the following:

==54082== 57 bytes in 3 blocks are definitely lost in loss record 365 of
729
==54082==    at 0x4031AFE: malloc (vg_replace_malloc.c:292)
==54082==    by 0x4145569: g_malloc (in
/usr/lib64/libglib-2.0.so.0.3400.2)
==54082==    by 0x415F9E9: g_strconcat (in
/usr/lib64/libglib-2.0.so.0.3400.2)
==54082==    by 0x80157FE7: qemu_register_machine (vl.c:1597)
==54082==    by 0x80208E6B: module_call_init (module.c:105)
==54082==    by 0x80013B91: main (vl.c:3000)

Turns out that valgrind is right. We simply forget the memory that
g_strconcat() has allocated. Lets free it after the type_register().
We need a 2nd variable due to constness of the name part of the
type structure.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-19 21:00:01 +01:00
f71e769d07 Merge remote-tracking branch 'remotes/afaerber/tags/qom-cpu-for-2.0' into staging
QOM CPUState refactorings / X86CPU

* Fix pointer type mismatch

# gpg: Signature made Wed 19 Mar 2014 18:51:47 GMT using RSA key ID 3E7E013F
# gpg: Good signature from "Andreas Färber <afaerber@suse.de>"
# gpg:                 aka "Andreas Färber <afaerber@suse.com>"

* remotes/afaerber/tags/qom-cpu-for-2.0:
  exec: Fix CPU rework fallout

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-03-19 19:05:13 +00:00
c01a71c1a5 exec: Fix CPU rework fallout
Commit 259186a7d2 (cpu: Move halted and
interrupt_request fields to CPUState) passed CPUState::env_ptr to
tlb_flush() directory rather than through a typed variable.

Commit 00c8cb0a36 (cputlb: Change
tlb_flush() argument to CPUState) now changed the argument type.
This was unnoticed by gcc because env_ptr is a void pointer.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-19 19:47:15 +01:00
ec864874bd linux-user: Fix build if headers don't define _LINUX_CAPABILITY_VERSION_1
Older kernel headers don't define _LINUX_CAPABILITY_VERSION_1.
Switch to using the older _LINUX_CAPABILITY_VERSION; newer headers
still define this for source compatibility.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reported-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Reviewed-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Acked-by: Riku Voipio <riku.voipio@iki.fi>
2014-03-19 18:19:57 +00:00
cfd54a0409 target-ppc: Add missing 'static' and 'const' attributes
This fixes warnings from the static code analysis (smatch).

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-19 18:35:52 +01:00
4c8821d134 Merge remote-tracking branch 'remotes/riku/linux-user-for-upstream' into staging
* remotes/riku/linux-user-for-upstream:
  linux-user: Implement capget, capset
  linux-user: Don't allow guest to block SIGSEGV
  signal: added a wrapper for sigprocmask function
  linux-user: Don't reserve space for commpage for AArch64
  linux-user: implement F_[GS]ETOWN_EX
  linux-user: Don't return uninitialized value for atomic_barrier syscall
  linux-user/signal.c: Correct error path for AArch64 do_rt_sigreturn

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-03-19 14:14:15 +00:00
c1b94a0ed2 Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging
Block patches for 2.0.0-rc1

# gpg: Signature made Wed 19 Mar 2014 13:03:27 GMT using RSA key ID C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"

* remotes/kevin/tags/for-upstream:
  dataplane: fix implicit IOThread refcount
  block/nfs: report errors from libnfs
  block/nfs: bump libnfs requirement to 1.9.3
  qcow2: Fix fail path in realloc_refcount_block()
  qcow2: Correct comment for realloc_refcount_block()
  qemu-io: Extended "--cmd" description in usage text
  qemu-io-cmds: Fixed typo in example for writev.
  block: Add error handling to bdrv_invalidate_cache()

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-03-19 13:47:22 +00:00
319c66d5ab Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20140319' into staging
target-arm queue:
 * last few A64 Neon instructions
 * fix some PL011 UART bugs causing occasional serial lockups
 * fix the non-PCI AHCI device

# gpg: Signature made Wed 19 Mar 2014 12:00:59 GMT using RSA key ID 14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"

* remotes/pmaydell/tags/pull-target-arm-20140319:
  target-arm: A64: Add saturating accumulate ops (USQADD/SUQADD)
  target-arm: A64: Add saturating int ops (SQNEG/SQABS)
  pl011: fix incorrect logic to set the RXFF flag
  pl011: fix UARTRSR accesses corrupting the UARTCR value
  pl011: reset the fifo when enabled or disabled
  ahci: fix sysbus support

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-03-19 13:00:41 +00:00
af67ee9264 vl.c: Use MAX_CPUMASK_BITS macro instead of hardcoded constant
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-03-19 13:24:29 +02:00
d2995916ea sysemu.h: Document what MAX_CPUMASK_BITS really limits
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-03-19 13:24:29 +02:00
198fd05c35 dataplane: fix implicit IOThread refcount
When creating an IOThread implicitly (the user did not specify
x-iothread=<id>) remember that iothread_find() does not return the
object with an incremented refcount.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-03-19 09:45:25 +01:00
20fccb187c block/nfs: report errors from libnfs
if an NFS operation fails we should report what libnfs knows
about the failure. It is likely more than just an error code.

Signed-off-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-03-19 09:39:41 +01:00
b7d769c932 block/nfs: bump libnfs requirement to 1.9.3
libnfs prior to 1.9.3 contains a bug that will report
wrong transfer sizes if the file offset grows beyond 4GB
and RPC responses are received out of order. this
error is not detectable and fixable in qemu.

additionally 1.9.3 introduces support for handling short
read/writes in general and takes care of the necessary
retransmissions internally.

Signed-off-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-03-19 09:39:41 +01:00
a134d90f50 qcow2: Fix fail path in realloc_refcount_block()
If qcow2_alloc_clusters() fails, new_offset and ret will both be
negative after the fail label, thus passing the first if condition and
subsequently resulting in a call of qcow2_free_clusters() with an
invalid (negative) offset parameter. Fix this by introducing a new label
"fail_free_cluster" which is only invoked if new_offset is indeed
pointing to a newly allocated cluster that should be cleaned up by
freeing it.

While we're at it, clean up the whole fail path. qcow2_cache_put()
should (and actually can) never fail, hence the return value can safely
be ignored (aside from asserting that it indeed did not fail).

Furthermore, there is no reason to give QCOW2_DISCARD_ALWAYS to
qcow2_free_clusters(), a mere QCOW2_DISCARD_OTHER will suffice.

Ultimately, rename the "fail" label to "done", as it is invoked both on
failure and success.

Suggested-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-03-19 09:39:41 +01:00
8a15b813e6 qcow2: Correct comment for realloc_refcount_block()
Contrary to the comment describing this function's behavior, it does not
return 0 on success, but rather the offset of the newly allocated
cluster. This patch adjusts the comment accordingly to reflect the
actual behavior.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-03-19 09:39:41 +01:00
d208cc353a qemu-io: Extended "--cmd" description in usage text
It's not clear from the usage description that "--cmd" option accepts
its argument as a string, so any special symbols have to be quoted from
the shell.

Updates in usage text:
 - Specified parameter format for "--cmd" option.
 - Added an instruction how to get help for "--cmd" option.

Signed-off-by: Maria Kustova <maria.k@catit.be>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-03-19 09:39:41 +01:00
6e6507c06b qemu-io-cmds: Fixed typo in example for writev.
Signed-off-by: Maria Kustova <maria.k@catit.be>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-03-19 09:39:41 +01:00
5a8a30db47 block: Add error handling to bdrv_invalidate_cache()
If it returns an error, the migrated VM will not be started, but qemu
exits with an error message.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Benoit Canet <benoit@irqsave.net>
2014-03-19 09:39:41 +01:00