Commit Graph

1590 Commits

Author SHA1 Message Date
Peter Maydell
5dfc05cb1d Block pull request
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Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging

Block pull request

# gpg: Signature made Fri 06 Jun 2014 17:08:50 BST using RSA key ID 81AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>"

* remotes/stefanha/tags/block-pull-request: (42 commits)
  qapi: Extract qapi/block.json definitions
  qapi: Extract qapi/block-core.json definitions
  qapi: create two block related json modules
  qapi: Extract qapi/common.json definitions
  sheepdog: reload only header in a case of live snapshot
  sheepdog: fix vdi object update after live snapshot
  rbd: Fix leaks in rbd_start_aio() error path
  qemu-img: Document check exit codes
  block: fix wrong order in live block migration setup
  blockdev: acquire AioContext in block_set_io_throttle
  throttle: add detach/attach test case
  throttle: add throttle_detach/attach_aio_context()
  dataplane: Support VIRTIO_BLK_T_SCSI_CMD
  virtio-blk: Factor out virtio_blk_handle_scsi_req from virtio_blk_handle_scsi
  virtio-blk: Allow config-wce in dataplane
  block: Move declaration of bdrv_get_aio_context to block.h
  raw-posix: drop raw_get_aio_fd() since it is no longer used
  dataplane: implement async flush
  dataplane: delete IOQueue since it is no longer used
  dataplane: use the QEMU block layer for I/O
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-06-09 11:54:22 +01:00
Peter Maydell
26edf8cc08 pc,pci,virtio,qdev fixes, tests
new tests for SMBIOS
 SMBIOS fixes
 pc, pci fixes
 qdev patches stayed on list for a month with no review,
 as I told people on KVM forum I'm merging stuch patches
 if they look fine.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

pc,pci,virtio,qdev fixes, tests

new tests for SMBIOS
SMBIOS fixes
pc, pci fixes
qdev patches stayed on list for a month with no review,
as I told people on KVM forum I'm merging stuch patches
if they look fine.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

* remotes/mst/tags/for_upstream:
  qdev: Add test of qdev_prop_check_global
  qdev: Display warning about unused -global
  tests: add smbios testing
  tests: rename acpi-test to bios-tables-test
  virtio-balloon: return empty data when no stats are available
  pcie_host: Turn pcie_host_init() into an instance_init
  SMBIOS: Fix type 17 field sizes
  SMBIOS: Update Type 0 struct generator for machines >= 2.1
  SMBIOS: Fix endian-ness when populating multi-byte fields
  serial-pci: Set prog interface field of pci config to 16550 compatible

Conflicts:
	include/hw/i386/pc.h
[PMM: fixed trivial conflict in pc.h]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-06-05 21:52:37 +01:00
Peter Maydell
31e25e3e57 Merge remote-tracking branch 'remotes/bonzini/softmmu-smap' into staging
* remotes/bonzini/softmmu-smap: (33 commits)
  target-i386: cleanup x86_cpu_get_phys_page_debug
  target-i386: fix protection bits in the TLB for SMEP
  target-i386: support long addresses for 4MB pages (PSE-36)
  target-i386: raise page fault for reserved bits in large pages
  target-i386: unify reserved bits and NX bit check
  target-i386: simplify pte/vaddr calculation
  target-i386: raise page fault for reserved physical address bits
  target-i386: test reserved PS bit on PML4Es
  target-i386: set correct error code for reserved bit access
  target-i386: introduce support for 1 GB pages
  target-i386: introduce do_check_protect label
  target-i386: tweak handling of PG_NX_MASK
  target-i386: commonize checks for PAE and non-PAE
  target-i386: commonize checks for 4MB and 4KB pages
  target-i386: commonize checks for 2MB and 4KB pages
  target-i386: fix coding standards in x86_cpu_handle_mmu_fault
  target-i386: simplify SMAP handling in MMU_KSMAP_IDX
  target-i386: fix kernel accesses with SMAP and CPL = 3
  target-i386: move check_io helpers to seg_helper.c
  target-i386: rename KSMAP to KNOSMAP
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-06-05 21:06:14 +01:00
Don Slutz
9f9260a3be qdev: Display warning about unused -global
This can help a user understand why -global was ignored.

For example: with "-vga cirrus"; "-global vga.vgamem_mb=16" is just
ignored when "-global cirrus-vga.vgamem_mb=16" is not.

This is currently clear when the wrong property is provided:

out/x86_64-softmmu/qemu-system-x86_64 -global cirrus-vga.vram_size_mb=16 -monitor pty -vga cirrus
char device redirected to /dev/pts/20 (label compat_monitor0)
qemu-system-x86_64: Property '.vram_size_mb' not found
Aborted (core dumped)

vs

out/x86_64-softmmu/qemu-system-x86_64 -global vga.vram_size_mb=16 -monitor pty -vga cirrus
char device redirected to /dev/pts/20 (label compat_monitor0)
VNC server running on `::1:5900'
^Cqemu: terminating on signal 2

Signed-off-by: Don Slutz <dslutz@verizon.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-05 19:20:37 +03:00
Paolo Bonzini
c773828aa9 softmmu: move all load/store functions to cpu_ldst.h
Unify pieces of cpu-all.h, exec-all.h, softmmu_exec.h and tcg/tcg.h
into a single new header file with all helpers.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-06-05 16:10:33 +02:00
Paolo Bonzini
f08b617018 softmmu: introduce cpu_ldst.h
This will collect all load and store helpers soon.  For now
it is just a replacement for softmmu_exec.h, which this patch
stops including directly, but we also include it where this will
be necessary in order to simplify the next patch.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-06-05 16:10:33 +02:00
Paolo Bonzini
58ed270df9 softmmu: move softmmu_template.h out of include/
It is only included in cputlb.c now.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-06-05 16:10:33 +02:00
Paolo Bonzini
0f590e749f softmmu: commonize helper definitions
They do not need to be in op_helper.c.  Because cputlb.c now includes
softmmu_template.h twice for each size, io_readX must be elided the
second time through.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-06-05 16:10:33 +02:00
Paolo Bonzini
93e22326d6 softmmu: make do_unaligned_access a method of CPU
We will reference it from more files in the next patch.  To avoid
ruining the small steps we're making towards multi-target, make
it a method of CPU rather than just a global.

Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-06-05 16:10:31 +02:00
Paolo Bonzini
ca0aa40816 softmmu: move definition of CPU_MMU_INDEX to inclusion site, drop ACCESS_TYPE
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-06-05 16:05:52 +02:00
Paolo Bonzini
a6c9eac0d5 softmmu: move MMUSUFFIX under SOFTMMU_CODE_ACCESS
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-06-05 16:05:47 +02:00
Paolo Bonzini
859d76120b softmmu: start introducing SOFTMMU_CODE_ACCESS in softmmu_header.h
This preprocessor symbol is already used in softmmu_template.h.  We
will use it to distinguish the two "fake" ACCESS_TYPEs
NB_MMU_MODES and NB_MMU_MODES + 1.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-06-05 16:05:27 +02:00
Stefan Hajnoczi
13af91ebf0 throttle: add throttle_detach/attach_aio_context()
Block I/O throttling uses timers and currently always adds them to the
main loop.  Throttling will break if bdrv_set_aio_context() is used to
move a BlockDriverState to a different AioContext.

This patch adds throttle_detach/attach_aio_context() interfaces so the
throttling timers and uses them to move timers to the new AioContext.
Note that bdrv_set_aio_context() already drains all requests so we're
sure no throttled requests are pending.

The test cases need to be updated since the throttle_init() interface
has changed.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Benoit Canet <benoit@irqsave.net>
2014-06-04 09:56:12 +02:00
Fam Zheng
5a05cbeeaa virtio-blk: Factor out virtio_blk_handle_scsi_req from virtio_blk_handle_scsi
The common logic to process a scsi request in a VirtQueueElement is
extracted to a function to share with dataplane.

This makes VirtIOBlockReq.scsi unused, so drop it.

Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-06-04 09:56:12 +02:00
Fam Zheng
db519cba87 block: Move declaration of bdrv_get_aio_context to block.h
block_int.h is for block layer and block drivers, other code shouldn't
include it. But similar to bdrv_set_aio_context, bdrv_get_aio_context
should also be accessible from outside of block layer.

Move it.

Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-06-04 09:56:12 +02:00
Stefan Hajnoczi
76ef2cf549 raw-posix: drop raw_get_aio_fd() since it is no longer used
virtio-blk data-plane now uses the QEMU block layer for I/O.  We do not
need raw_get_aio_fd() anymore.  It was a layering violation anyway, so
let's get rid of it.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-06-04 09:56:12 +02:00
Stefan Hajnoczi
dcd042282d block: add bdrv_set_aio_context()
Up until now all BlockDriverState instances have used the QEMU main loop
for fd handlers, timers, and BHs.  This is not scalable on SMP guests
and hosts so we need to move to a model with multiple event loops on
different host CPUs.

bdrv_set_aio_context() assigns the AioContext event loop to use for a
particular BlockDriverState.  It first detaches the entire
BlockDriverState graph from the current AioContext and then attaches to
the new AioContext.

This function will be used by virtio-blk data-plane to assign a
BlockDriverState to its IOThread AioContext.  Make
bdrv_aio_set_context() public since data-plane should not include
block_int.h.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-06-04 09:56:11 +02:00
Gerd Hoffmann
be1a717624 input: add support for kbd delays
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-06-04 08:40:41 +02:00
Peter Maydell
e00fcfeab3 VFIO patches: realtek NIC quirk + SPAPR IOMMU AddressSpace support
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Merge remote-tracking branch 'remotes/awilliam/tags/vfio-pci-for-qemu-20140602.0' into staging

VFIO patches: realtek NIC quirk + SPAPR IOMMU AddressSpace support

# gpg: Signature made Mon 02 Jun 2014 22:44:42 BST using RSA key ID 3BB08B22
# gpg: Can't check signature: public key not found

* remotes/awilliam/tags/vfio-pci-for-qemu-20140602.0:
  vfio: Add guest side IOMMU support
  vfio: Create VFIOAddressSpace objects as needed
  vfio: Introduce VFIO address spaces
  vfio: Rework to have error paths
  vfio: Fix 128 bit handling
  int128: Add int128_exts64()
  memory: Sanity check that no listeners remain on a destroyed AddressSpace
  vfio-pci: Quirk RTL8168 NIC

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-06-03 14:37:43 +01:00
Peter Maydell
82ea61c6da qtest: improve ehci/uhci test
usb: misc fixes, mostly for usb3/xhci
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Merge remote-tracking branch 'remotes/kraxel/tags/pull-usb-8' into staging

qtest: improve ehci/uhci test
usb: misc fixes, mostly for usb3/xhci

# gpg: Signature made Mon 02 Jun 2014 15:40:34 BST using RSA key ID D3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>"

* remotes/kraxel/tags/pull-usb-8:
  xhci: order superspeed ports first
  xhci: make port reset trace point more verbose
  usb: add usb_pick_speed
  usb-host: add HAVE_STREAMS define
  usb-host: allow attaching usb3 devices to ehci
  usb: improve ehci/uhci test
  usb: move ehci register defines to header file
  usb: add uhci port status reserved bit
  usb: move uhci register defines to header file
  qtest: fix qpci_config_writel

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-06-02 17:07:21 +01:00
Gerd Hoffmann
7bafd8889e xhci: order superspeed ports first
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-06-02 16:38:09 +02:00
Gerd Hoffmann
b791c3b38c usb: add usb_pick_speed
We can pick the usb port speed in generic code, by looking at the port
and device speed masks and looking for the fastest match.  So add a
function to do exactly that, and drop the speed setting code from
usb_desc_attach as it isn't needed any more.

This way we can set the device speed before calling port->ops->attach,
which fixes some xhci hotplug issues.

https://bugzilla.redhat.com/show_bug.cgi?id=1046873

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-06-02 16:29:00 +02:00
Gerd Hoffmann
381626a969 usb: move ehci register defines to header file
So we can easily use them in tests.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-06-02 16:28:59 +02:00
Gerd Hoffmann
95dd1c4d7a usb: add uhci port status reserved bit
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-06-02 16:28:59 +02:00
Gerd Hoffmann
9a1d111e70 usb: move uhci register defines to header file
So we can easily use them in tests.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-06-02 16:28:59 +02:00
Gerd Hoffmann
bdef972474 console: add kbd_put_string_console
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-06-02 16:28:58 +02:00
Gerd Hoffmann
50ef467923 console: add kbd_put_qcode_console
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-06-02 16:28:58 +02:00
Alexey Kardashevskiy
12e1129b80 int128: Add int128_exts64()
This adds macro to extend signed 64bit value to signed 128bit value.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2014-05-30 13:00:28 -06:00
Peter Maydell
d7d3d6092c QOM/QTest infrastructure fixes and device conversions
* qom-test extension
 * QEMUMachineInitArgs conversion to MachineState
 * -machine options turned into /machine properties
 * Named GPIO IRQs for devices
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Merge remote-tracking branch 'remotes/afaerber/tags/qom-devices-for-peter' into staging

QOM/QTest infrastructure fixes and device conversions

* qom-test extension
* QEMUMachineInitArgs conversion to MachineState
* -machine options turned into /machine properties
* Named GPIO IRQs for devices

# gpg: Signature made Wed 28 May 2014 18:24:04 BST using RSA key ID 3E7E013F
# gpg: Can't check signature: public key not found

* remotes/afaerber/tags/qom-devices-for-peter:
  ssi: Name the CS GPIO
  qdev: Implement named GPIOs
  machine: Make -machine opts properties of MachineState
  tests: Check empty QMP output visitor
  qapi: Avoid output visitor crashing if it encounters a NULL value
  vl.c: Do not set 'type' property in obj_set_property()
  machine: Conversion of QEMUMachineInitArgs to MachineState
  qom-test: Test qom-list on link<> properties

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-05-28 18:38:39 +01:00
Richard Henderson
011209e19f tcg: Move size effects out of dh_arg
Tidying the initialization of the args arrays at the same time.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-28 09:33:55 -07:00
Richard Henderson
bbb8a1b455 tcg: Remove sizemask and flags arguments to tcg_gen_callN
Take them from the TCGHelperInfo struct instead.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-28 09:33:55 -07:00
Richard Henderson
afb49896fa tcg: Save flags and computed sizemask in TCGHelperInfo
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-28 09:33:54 -07:00
Richard Henderson
a5ed2de10a tcg: Move side effects out of dh_sizemask
Moving them into dh_arg instead.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-28 09:33:54 -07:00
Richard Henderson
836d6ed96e tcg: Inline tcg_gen_helperN
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-28 09:33:54 -07:00
Richard Henderson
944eea962b tcg: Push tcg-runtime routines into exec/helper-*
Rather than special casing them, use the standard mechanisms
for tcg helper generation.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-28 09:33:54 -07:00
Richard Henderson
2ef6175aa7 tcg: Invert the inclusion of helper.h
Rather than include helper.h with N values of GEN_HELPER, include a
secondary file that sets up the macros to include helper.h.  This
minimizes the files that must be rebuilt when changing the macros
for file N.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-28 09:33:54 -07:00
Peter Crosthwaite
de77914e50 ssi: Name the CS GPIO
To get it out of the default GPIO list. This allows child devices to
use the un-named GPIO namespace without having to be SSI aware. That
is, there is no more need for machines to know about the obscure
policy where GPIO 0 is the SSI chip-select and GPIO 1..N are the
concrete class GPIOs (defined locally as 0..N-1).

This is most notable in stellaris, which uses a device which has both
SSI and concrete level GPIOs.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-05-28 17:36:21 +02:00
Peter Crosthwaite
a5f54290ce qdev: Implement named GPIOs
Implement named GPIOs on the Device layer. Listifies the existing GPIOs
stuff using string keys. Legacy un-named GPIOs are preserved by using
a NULL name string - they are just a single matchable element in the
name list.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-05-28 17:36:21 +02:00
Marcel Apfelbaum
6b1b144019 machine: Make -machine opts properties of MachineState
Make machine's QemuOpts QOM properties of /machine. The properties
are automatically filled in. This opens the possibility to create
opts per machine rather than global.

Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-05-28 17:36:13 +02:00
Marcel Apfelbaum
3ef9622182 machine: Conversion of QEMUMachineInitArgs to MachineState
Total removal of QEMUMachineInitArgs struct. QEMUMachineInitArgs's fields
are copied into MachineState. Removed duplicated fields from MachineState.

All the other changes are only mechanical refactoring, no semantic changes.

Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> (s390)
Reviewed-by: Michael S. Tsirkin <mst@redhat.com> (PC)
[AF: Renamed ms -> machine, use MACHINE_GET_CLASS()]
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-05-28 17:35:01 +02:00
Peter Maydell
3ee933c9d4 Block pull request
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Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging

Block pull request

# gpg: Signature made Wed 28 May 2014 13:31:15 BST using RSA key ID 81AB73C8
# gpg: Can't check signature: public key not found

* remotes/stefanha/tags/block-pull-request: (33 commits)
  block/sheepdog: Don't use qerror_report()
  block/sheepdog: Fix silent sd_open(), sd_create() failures
  block/sheepdog: Propagate errors to open and create methods
  block/sheepdog: Propagate errors through find_vdi_name()
  block/sheepdog: Propagate errors through do_sd_create()
  block/sheepdog: Propagate errors through sd_prealloc()
  block/sheepdog: Propagate errors through get_sheep_fd()
  block/sheepdog: Propagate errors through connect_to_sdog()
  block/vvfat: Propagate errors through init_directories()
  block/vvfat: Propagate errors through enable_write_target()
  block/ssh: Propagate errors to open and create methods
  block/ssh: Propagate errors through connect_to_ssh()
  block/ssh: Propagate errors through authenticate()
  block/ssh: Propagate errors through check_host_key()
  block/ssh: Drop superfluous libssh2_session_last_errno() calls
  block/rbd: Propagate errors to open and create methods
  qemu-nbd: Don't use qerror_report()
  blockdev: Don't use qerror_report() in do_drive_del()
  blockdev: Don't use qerror_report_err() in drive_init()
  docs: Define refcount_bits value
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-05-28 15:22:40 +01:00
Fam Zheng
826b6ca0b0 block: Add backing_blocker in BlockDriverState
This makes use of op_blocker and blocks all the operations except for
commit target, on each BlockDriverState->backing_hd.

The asserts for op_blocker in bdrv_swap are removed because with this
change, the target of block commit has at least the backing blocker of
its child, so the assertion is not true. Callers should do their check.

Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-05-28 14:28:46 +02:00
Fam Zheng
8d24cce1e3 block: Add bdrv_set_backing_hd()
This is the common but non-trivial steps to assign or change the
backing_hd of BDS.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-05-28 14:28:46 +02:00
Fam Zheng
3718d8ab65 block: Replace in_use with operation blocker
This drops BlockDriverState.in_use with op_blockers:

  - Call bdrv_op_block_all in place of bdrv_set_in_use(bs, 1).

  - Call bdrv_op_unblock_all in place of bdrv_set_in_use(bs, 0).

  - Check bdrv_op_is_blocked() in place of bdrv_in_use(bs).

    The specific types are used, e.g. in place of starting block backup,
    bdrv_op_is_blocked(bs, BLOCK_OP_TYPE_BACKUP, ...).

    There is one exception in block_job_create, where
    bdrv_op_blocker_is_empty() is used, because we don't know the operation
    type here. This doesn't matter because in a few commits away we will drop
    the check and move it to callers that _do_ know the type.

  - Check bdrv_op_blocker_is_empty() in place of assert(!bs->in_use).

Note: there is only bdrv_op_block_all and bdrv_op_unblock_all callers at
this moment. So although the checks are specific to op types, this
changes can still be seen as identical logic with previously with
in_use. The difference is error message are improved because of blocker
error info.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-05-28 14:28:46 +02:00
Fam Zheng
fbe40ff780 block: Introduce op_blockers to BlockDriverState
BlockDriverState.op_blockers is an array of lists with BLOCK_OP_TYPE_MAX
elements. Each list is a list of blockers of an operation type
(BlockOpType), that marks this BDS as currently blocked for a certain
type of operation with reason errors stored in the list. The rule of
usage is:

 * BDS user who wants to take an operation should check if there's any
   blocker of the type with bdrv_op_is_blocked().

 * BDS user who wants to block certain types of operation, should call
   bdrv_op_block (or bdrv_op_block_all to block all types of operations,
   which is similar to the existing bdrv_set_in_use()).

 * A blocker is only referenced by op_blockers, so the lifecycle is
   managed by caller, and shouldn't be lost until unblock, so typically
   a caller does these:

   - Allocate a blocker with error_setg or similar, call bdrv_op_block()
     to block some operations.
   - Hold the blocker, do his job.
   - Unblock operations that it blocked, with the same reason pointer
     passed to bdrv_op_unblock().
   - Release the blocker with error_free().

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Benoit Canet <benoit@irqsave.net>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-05-28 14:28:46 +02:00
Fam Zheng
8574575f90 block: Add BlockOpType enum
This adds the enum of all the operations that can be taken on a block
device.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Benoit Canet <benoit@irqsave.net>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-05-28 14:28:46 +02:00
Peter Maydell
53651ec26b console: multiwindow support for text terminal QemuConsoles
console: small fixes
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Merge remote-tracking branch 'remotes/kraxel/tags/pull-console-1' into staging

console: multiwindow support for text terminal QemuConsoles
console: small fixes

# gpg: Signature made Mon 26 May 2014 09:17:27 BST using RSA key ID D3E87138
# gpg: Can't check signature: public key not found

* remotes/kraxel/tags/pull-console-1:
  console: add kbd_put_keysym_console
  console: rework text terminal cursor logic
  console: update text terminal surface unconditionally
  console: nicer initial screen
  console: Abort on property access errors

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-05-28 12:36:25 +01:00
Peter Maydell
4aa23452e3 input: add event routing and multiseat support.
input: misc bugfixes and minor improvements.
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Merge remote-tracking branch 'remotes/kraxel/tags/pull-input-9' into staging

input: add event routing and multiseat support.
input: misc bugfixes and minor improvements.

# gpg: Signature made Mon 26 May 2014 07:44:29 BST using RSA key ID D3E87138
# gpg: Can't check signature: public key not found

* remotes/kraxel/tags/pull-input-9:
  docs: add multiseat.txt
  usb: add input routing support for tablet and keyboard
  sdl: pass key event source to input layer
  input: bind devices and input routing
  input: switch hid mouse and tablet to the new input layer api.
  input: switch hid keyboard to new input layer api.
  input: keymap: add meta keys
  input: add name to input_event_key_number
  input: add qemu_input_key_number_to_qcode
  input (curses): mask keycodes to remove modifier bits

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-05-28 10:33:05 +01:00
Peter Maydell
9474ab1487 trivial patches for 2014-05-26
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Merge remote-tracking branch 'remotes/mjt/tags/trivial-patches-2014-05-26' into staging

trivial patches for 2014-05-26

# gpg: Signature made Mon 26 May 2014 08:17:08 BST using RSA key ID A4C3D7DB
# gpg: Can't check signature: public key not found

* remotes/mjt/tags/trivial-patches-2014-05-26: (23 commits)
  libcacard: remove useless initializers
  net: cadence_gem: Fix top comment
  bsd-user: replace fprintf(stderr, ...) with error_report()
  audio: replace fprintf(stderr, ...) with error_report() in audio
  libcacard: fix wrong array expansion logic
  libcacard/vcard_emul_nss: Drop a redundant conditional
  libcacard: Convert two leftover realloc() to GLib
  libcacard/vreader: Tighten assertion to clarify intent
  libcacard/vreader: Drop broken recovery from failed assertion
  libcacard: Plug memory leaks around vreader_get_reader_list()
  libcacard/vscclient: Bury some dead code
  vl: fix 'name' option to work with -readconfig
  configure: Put tempfiles in a subdir of the build directory
  dma-helpers: avoid calling dma_bdrv_unmap() twice
  arch_init: replace fprintf(stderr, ...) with error_report()
  pci: move dereferencing of root only after verifying valid root pointer
  jazz_led: Add missing break in switch case
  bswap.h: Rename ldl_p, stl_p, etc to ldl_he_p, stl_he_p, etc
  configure: Automatically select GTK+ 3.0 if GTK+ 2.0 is unavailable
  nbd: Miscellaneous typo fixes.
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-05-27 22:45:03 +01:00
Gerd Hoffmann
6f5943cf45 input: bind devices and input routing
Add function to bind input devices to display devices.  Implementing
input routing on top of this:  Events coming from the display device in
question are routed to the input device bound to it (if there is one).

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-05-26 08:42:43 +02:00