Commit graph

568 commits

Author SHA1 Message Date
Kevin Wolf 572023f7b2 block: Remove deprecated -drive option serial
This reinstates commit b008326744,
which was temporarily reverted for the 3.0 release so that libvirt gets
some extra time to update their command lines.

The -drive option serial was deprecated in QEMU 2.10. It's time to
remove it.

Tests need to be updated to set the serial number with -global instead
of using the -drive option.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
2018-08-15 12:50:39 +02:00
Kevin Wolf b24ec3c462 block: Remove deprecated -drive geometry options
This reinstates commit a7aff6dd10,
which was temporarily reverted for the 3.0 release so that libvirt gets
some extra time to update their command lines.

The -drive options cyls, heads, secs and trans were deprecated in
QEMU 2.10. It's time to remove them.

hd-geo-test tested both the old version with geometry options in -drive
and the new one with -device. Therefore the code using -drive doesn't
have to be replaced there, we just need to remove the -drive test cases.
This in turn allows some simplification of the code.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
2018-08-15 12:50:39 +02:00
Cornelia Huck 6703db131f Revert "block: Remove deprecated -drive geometry options"
This reverts commit a7aff6dd10.

Hold off removing this for one more QEMU release (current libvirt
release still uses it.)

Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-07-10 14:36:12 +02:00
Cornelia Huck 44e8b4689c Revert "block: Remove deprecated -drive option serial"
This reverts commit b008326744.

Hold off removing this for one more QEMU release (current libvirt
release still uses it.)

Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-07-10 14:36:11 +02:00
Philippe Mathieu-Daudé e8400cf385 hw/block: Use the IEC binary prefix definitions
It eases code review, unit is explicit.

Patch generated using:

  $ git grep -E '(1024|2048|4096|8192|(<<|>>).?(10|20|30))' hw/ include/hw/

and modified manually.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20180625124238.25339-14-f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-07-02 15:41:13 +02:00
Philippe Mathieu-Daudé 8f951a13f0 hw/xen: Use the IEC binary prefix definitions
It eases code review, unit is explicit.

Patch generated using:

  $ git grep -E '(1024|2048|4096|8192|(<<|>>).?(10|20|30))' hw/ include/hw/

and modified manually.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alan Robinson <Alan.Robinson@ts.fujitsu.com>
Message-Id: <20180625124238.25339-12-f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-07-02 15:41:13 +02:00
Peter Maydell 6f4fa0998f Pull request
* Python 3 support in simpletrace.py
  * Convert DPRINTF() to trace events
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Merge remote-tracking branch 'remotes/stefanha/tags/tracing-pull-request' into staging

Pull request

 * Python 3 support in simpletrace.py
 * Convert DPRINTF() to trace events

# gpg: Signature made Fri 29 Jun 2018 18:53:05 BST
# gpg:                using RSA key 9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>"
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* remotes/stefanha/tags/tracing-pull-request:
  hw/block/pflash_cfi: Convert from DPRINTF() macro to trace events
  hw/block/fdc: Convert from FLOPPY_DPRINTF() macro to trace events
  hw/net/etraxfs_eth: Convert printf() calls to trace events
  hw/net/ne2000: Convert printf() calls to trace events
  hw/net/ne2000: Add trace events
  hw/input/tsc2005: Convert a fprintf() call to trace events
  hw/char/parallel: Convert from pdebug() macro to trace events
  hw/char/serial: Convert from DPRINTF macro to trace events
  sdcard: Reduce sdcard_set_blocklen() trace digits
  trace: Fix format string for the struct timeval members casted to size_t
  simpletrace: Convert name from mapping record to str

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-30 13:59:53 +01:00
Peter Maydell 275845ae65 target-arm queue:
* last of the SVE patches; SVE is now enabled for aarch64 linux-user
  * sd: Don't trace SDRequest crc field (coverity bugfix)
  * target/arm: Mark PMINTENSET accesses as possibly doing IO
  * clean up v7VE feature bit handling
  * i.mx7d: minor cleanups
  * target/arm: support reading of CNT[VCT|FRQ]_EL0 from user-space
  * target/arm: Implement ARMv8.2-DotProd
  * virt: add addresses to dt node names (which stops dtc from
    complaining that they're not correctly named)
  * cleanups: replace error_setg(&error_fatal) by error_report() + exit()
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20180629' into staging

target-arm queue:
 * last of the SVE patches; SVE is now enabled for aarch64 linux-user
 * sd: Don't trace SDRequest crc field (coverity bugfix)
 * target/arm: Mark PMINTENSET accesses as possibly doing IO
 * clean up v7VE feature bit handling
 * i.mx7d: minor cleanups
 * target/arm: support reading of CNT[VCT|FRQ]_EL0 from user-space
 * target/arm: Implement ARMv8.2-DotProd
 * virt: add addresses to dt node names (which stops dtc from
   complaining that they're not correctly named)
 * cleanups: replace error_setg(&error_fatal) by error_report() + exit()

# gpg: Signature made Fri 29 Jun 2018 15:52:21 BST
# gpg:                using RSA key 3C2525ED14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>"
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>"
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* remotes/pmaydell/tags/pull-target-arm-20180629: (55 commits)
  target/arm: Add ID_ISAR6
  target/arm: Prune a15 features from max
  target/arm: Prune a57 features from max
  target/arm: Fix SVE system register access checks
  target/arm: Fix SVE signed division vs x86 overflow exception
  sdcard: Use the ldst API
  sd: Don't trace SDRequest crc field
  target/arm: Mark PMINTENSET accesses as possibly doing IO
  target/arm: Remove redundant DIV detection for KVM
  target/arm: Add ARM_FEATURE_V7VE for v7 Virtualization Extensions
  i.mx7d: Change IRQ number type from hwaddr to int
  i.mx7d: Change SRC unimplemented device name from sdma to src
  i.mx7d: Remove unused header files
  target/arm: support reading of CNT[VCT|FRQ]_EL0 from user-space
  target/arm: Implement ARMv8.2-DotProd
  target/arm: Enable SVE for aarch64-linux-user
  target/arm: Implement SVE dot product (indexed)
  target/arm: Implement SVE dot product (vectors)
  target/arm: Implement SVE fp complex multiply add (indexed)
  target/arm: Pass index to AdvSIMD FCMLA (indexed)
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-30 11:55:32 +01:00
Peter Maydell ce59ecc411 Block layer patches:
- Make truncate operations asynchronous (so that preallocation in
   blockdev-create doesn't block the main loop any more)
 - usb-storage: Add rerror/werror properties
 - nvme: Add num_queues property
 - qemu-img convert: Copy offloading fixes (including data corruption fix)
 - qcow2: Fix cluster leak on temporary write error
 - Use byte-based functions instead of bdrv_co_readv/writev()
 - Various small fixes and cleanups
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Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer patches:

- Make truncate operations asynchronous (so that preallocation in
  blockdev-create doesn't block the main loop any more)
- usb-storage: Add rerror/werror properties
- nvme: Add num_queues property
- qemu-img convert: Copy offloading fixes (including data corruption fix)
- qcow2: Fix cluster leak on temporary write error
- Use byte-based functions instead of bdrv_co_readv/writev()
- Various small fixes and cleanups

# gpg: Signature made Fri 29 Jun 2018 15:08:34 BST
# gpg:                using RSA key 7F09B272C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74  56FE 7F09 B272 C88F 2FD6

* remotes/kevin/tags/for-upstream: (29 commits)
  block: Remove unused sector-based vectored I/O
  vhdx: Switch to byte-based calls
  replication: Switch to byte-based calls
  qcow: Switch to a byte-based driver
  qcow: Switch qcow_co_writev to byte-based calls
  qcow: Switch qcow_co_readv to byte-based calls
  qcow: Switch get_cluster_offset to be byte-based
  parallels: Switch to byte-based calls
  file-posix: Fix EINTR handling
  iscsi: Don't blindly use designator length in response for memcpy
  qcow2: Fix src_offset in copy offloading
  file-posix: Implement co versions of discard/flush
  qemu-iotests: Test qcow2 not leaking clusters on write error
  qcow2: Free allocated clusters on write error
  qemu-iotests: Update 026.out.nocache reference output
  block/crypto: Simplify block_crypto_{open,create}_opts_init()
  block: Move request tracking to children in copy offloading
  qcow2: Remove dead check on !ret
  file-posix: Make .bdrv_co_truncate asynchronous
  block: Use tracked request for truncate
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-29 18:29:15 +01:00
Philippe Mathieu-Daudé 329b72916f hw/block/fdc: Replace error_setg(&error_abort) by assert()
Use assert() instead of error_setg(&error_abort),
as suggested by the "qapi/error.h" documentation:

    Please don't error_setg(&error_fatal, ...), use error_report() and
    exit(), because that's more obvious.
    Likewise, don't error_setg(&error_abort, ...), use assert().

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: John Snow <jsnow@redhat.com>
Message-id: 20180625165749.3910-2-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-29 15:11:00 +01:00
Philippe Mathieu-Daudé 13019f1fd6 hw/block/pflash_cfi: Convert from DPRINTF() macro to trace events
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
[Fixed lx -> PRIx64 as suggested by Philippe.
--Stefan]
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2018-06-29 15:04:18 +01:00
Philippe Mathieu-Daudé 1a5396d961 hw/block/fdc: Convert from FLOPPY_DPRINTF() macro to trace events
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2018-06-29 15:04:18 +01:00
Weiping Zhang 7c8952697e hw/block/nvme: add optional parameter num_queues for nvme device
Add an optional paramter num_queues for device, and set it
to 64 by default.

Signed-off-by: Weiping Zhang <zhangweiping@didichuxing.com>
Acked-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-06-29 14:20:56 +02:00
Thomas Huth a1d30f285e Replace '-enable-kvm' with '-accel kvm' in docs and help texts
The preferred way to select the KVM accelerator is to use "-accel kvm"
these days, so let's be consistent in our documentation and help texts.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1528866321-23886-3-git-send-email-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-06-28 19:05:32 +02:00
Peter Maydell 4359255ad3 Block layer patches:
- Fix options that work only with -drive or -blockdev, but not with
   both, because of QDict type confusion
 - rbd: Add options 'auth-client-required' and 'key-secret'
 - Remove deprecated -drive options serial/addr/cyls/heads/secs/trans
 - rbd, iscsi: Remove deprecated 'filename' option
 - Fix 'qemu-img map' crash with unaligned image size
 - Improve QMP documentation for jobs
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Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer patches:

- Fix options that work only with -drive or -blockdev, but not with
  both, because of QDict type confusion
- rbd: Add options 'auth-client-required' and 'key-secret'
- Remove deprecated -drive options serial/addr/cyls/heads/secs/trans
- rbd, iscsi: Remove deprecated 'filename' option
- Fix 'qemu-img map' crash with unaligned image size
- Improve QMP documentation for jobs

# gpg: Signature made Fri 15 Jun 2018 15:20:03 BST
# gpg:                using RSA key 7F09B272C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74  56FE 7F09 B272 C88F 2FD6

* remotes/kevin/tags/for-upstream: (26 commits)
  block: Remove dead deprecation warning code
  block: Remove deprecated -drive option serial
  block: Remove deprecated -drive option addr
  block: Remove deprecated -drive geometry options
  rbd: New parameter key-secret
  rbd: New parameter auth-client-required
  block: Fix -blockdev / blockdev-add for empty objects and arrays
  check-block-qdict: Cover flattening of empty lists and dictionaries
  check-block-qdict: Rename qdict_flatten()'s variables for clarity
  block-qdict: Simplify qdict_is_list() some
  block-qdict: Clean up qdict_crumple() a bit
  block-qdict: Tweak qdict_flatten_qdict(), qdict_flatten_qlist()
  block-qdict: Simplify qdict_flatten_qdict()
  block: Make remaining uses of qobject input visitor more robust
  block: Factor out qobject_input_visitor_new_flat_confused()
  block: Clean up a misuse of qobject_to() in .bdrv_co_create_opts()
  block: Fix -drive for certain non-string scalars
  block: Fix -blockdev for certain non-string scalars
  qobject: Move block-specific qdict code to block-qdict.c
  block: Add block-specific QDict header
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-15 16:30:27 +01:00
Cédric Le Goater 2151b044fd m25p80: add support for two bytes WRSR for Macronix chips
On Macronix chips, two bytes can written to the WRSR. First byte will
configure the status register and the second the configuration
register. It is important to save the configuration value as it
contains the dummy cycle setting when using dual or quad IO mode.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-15 15:23:34 +01:00
Peter Maydell a4afb28dae hw/block/pflash_cfi02: Convert away from old_mmio
Convert the pflash_cfi02 device away from using the old_mmio field
of MemoryRegionOps.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Max Reitz <mreitz@redhat.com>
Message-id: 20180601141223.26630-4-peter.maydell@linaro.org
2018-06-15 15:23:34 +01:00
Kevin Wolf b008326744 block: Remove deprecated -drive option serial
The -drive option serial was deprecated in QEMU 2.10. It's time to
remove it.

Tests need to be updated to set the serial number with -global instead
of using the -drive option.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
2018-06-15 14:49:44 +02:00
Kevin Wolf a7aff6dd10 block: Remove deprecated -drive geometry options
The -drive options cyls, heads, secs and trans were deprecated in
QEMU 2.10. It's time to remove them.

hd-geo-test tested both the old version with geometry options in -drive
and the new one with -device. Therefore the code using -drive doesn't
have to be replaced there, we just need to remove the -drive test cases.
This in turn allows some simplification of the code.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
2018-06-15 14:49:44 +02:00
Peter Maydell f67c9b693a acpi, vhost, misc: fixes, features
vDPA support, fix to vhost blk RO bit handling, some include path
 cleanups, NFIT ACPI table.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

acpi, vhost, misc: fixes, features

vDPA support, fix to vhost blk RO bit handling, some include path
cleanups, NFIT ACPI table.

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

# gpg: Signature made Fri 01 Jun 2018 17:25:19 BST
# gpg:                using RSA key 281F0DB8D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>"
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* remotes/mst/tags/for_upstream: (31 commits)
  vhost-blk: turn on pre-defined RO feature bit
  ACPI testing: test NFIT platform capabilities
  nvdimm, acpi: support NFIT platform capabilities
  tests/.gitignore: add entry for generated file
  arch_init: sort architectures
  ui: use local path for local headers
  qga: use local path for local headers
  colo: use local path for local headers
  migration: use local path for local headers
  usb: use local path for local headers
  sd: fix up include
  vhost-scsi: drop an unused include
  ppc: use local path for local headers
  rocker: drop an unused include
  e1000e: use local path for local headers
  ioapic: fix up includes
  ide: use local path for local headers
  display: use local path for local headers
  trace: use local path for local headers
  migration: drop an unused include
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-04 10:15:16 +01:00
Changpeng Liu 25b1d45a19 vhost-blk: turn on pre-defined RO feature bit
Read only feature shouldn't be negotiable, because if the
backend device reported Read only feature supported, QEMU
host driver shouldn't change backend's RO attribute. While
here, also enable the vhost-user-blk test utility to test
RO feature.

Signed-off-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2018-06-01 19:20:38 +03:00
Paolo Bonzini b5dfdb082f hw: make virtio devices configurable via default-configs/
This is only half of the work, because the proxy devices (virtio-*-pci,
virtio-*-ccw, etc.) are still included unconditionally.  It is still a
move in the right direction.

Based-on: <20180522194943.24871-1-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-06-01 15:14:31 +02:00
Philippe Mathieu-Daudé 6b39bad02e hw/block/nvme: Include "qemu/cutils.h" directly in the source file
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20180528232719.4721-16-f4bug@amsat.org>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-06-01 14:15:10 +02:00
Philippe Mathieu-Daudé 6dd046a3c4 hw: Do not include "sysemu/blockdev.h" if it is not necessary
Remove those unneeded includes to speed up the compilation
process a little bit.

Code change produced with:

    $ git grep '#include "sysemu/blockdev.h"' | \
      cut -d: -f-1 | \
      xargs egrep -L "(BlockInterfaceType|DriveInfo|drive_get|blk_legacy_dinfo|blockdev_mark_auto_del)" | \
      xargs sed -i.bak '/#include "sysemu\/blockdev.h"/d'

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20180528232719.4721-15-f4bug@amsat.org>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-06-01 14:15:10 +02:00
Philippe Mathieu-Daudé 0304f9ec9c hw: Do not include "sysemu/block-backend.h" if it is not necessary
Remove those unneeded includes to speed up the compilation
process a little bit. (Continue 7eceff5b5a cleanup)

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20180528232719.4721-13-f4bug@amsat.org>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-06-01 14:15:10 +02:00
Philippe Mathieu-Daudé ab728275e4 hw: Do not include "exec/address-spaces.h" if it is not necessary
Code change produced with:
    $ git grep '#include "exec/address-spaces.h"' hw include/hw | \
      cut -d: -f-1 | \
      xargs egrep -L "(get_system_|address_space_)" | \
      xargs sed -i.bak '/#include "exec\/address-spaces.h"/d'

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20180528232719.4721-12-f4bug@amsat.org>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-06-01 14:15:10 +02:00
Tiwei Bie 4d0cf552d3 vhost-user: introduce shared vhost-user state
When multi queue is enabled e.g. for a virtio-net device,
each queue pair will have a vhost_dev, and the only thing
shared between vhost devs currently is the chardev. This
patch introduces a vhost-user state structure which will
be shared by all vhost devs of the same virtio device.

Signed-off-by: Tiwei Bie <tiwei.bie@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2018-05-24 21:14:11 +03:00
Peter Maydell 5ff2a4b97f Xen 2018/05/22
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Merge remote-tracking branch 'remotes/sstabellini-http/tags/xen-20180522-tag' into staging

Xen 2018/05/22

# gpg: Signature made Tue 22 May 2018 19:44:06 BST
# gpg:                using RSA key 894F8F4870E1AE90
# gpg: Good signature from "Stefano Stabellini <stefano.stabellini@eu.citrix.com>"
# gpg:                 aka "Stefano Stabellini <sstabellini@kernel.org>"
# Primary key fingerprint: D04E 33AB A51F 67BA 07D3  0AEA 894F 8F48 70E1 AE90

* remotes/sstabellini-http/tags/xen-20180522-tag:
  xen_disk: be consistent with use of xendev and blkdev->xendev
  xen_disk: use a single entry iovec
  xen_backend: make the xen_feature_grant_copy flag private
  xen_disk: remove use of grant map/unmap
  xen_backend: add an emulation of grant copy
  xen: remove other open-coded use of libxengnttab
  xen_disk: remove open-coded use of libxengnttab
  xen_backend: add grant table helpers
  xen: add a meaningful declaration of grant_copy_segment into xen_common.h
  checkpatch: generalize xen handle matching in the list of types
  xen-hvm: create separate function for ioreq server initialization
  xen_pt: Present the size of 64 bit BARs correctly
  configure: Add explanation for --enable-xen-pci-passthrough
  xen/pt: use address_space_memory object for memory region hooks
  xen-pvdevice: Introduce a simplistic xen-pvdevice save state

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-05-24 11:30:59 +01:00
Paul Durrant 443c3c9cf1 xen_disk: be consistent with use of xendev and blkdev->xendev
Certain functions in xen_disk are called with a pointer to xendev
(struct XenDevice *). They then use container_of() to acces the surrounding
blkdev (struct XenBlkDev) but then in various places use &blkdev->xendev
when use of the original xendev pointer is shorter to express and clearly
equivalent.

This patch is a purely cosmetic patch which makes sure there is a xendev
pointer on stack for any function where the pointer is need on multiple
occasions modified those functions to use it consistently.

Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Acked-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
2018-05-22 11:43:22 -07:00
Paul Durrant 5ebf962652 xen_disk: use a single entry iovec
Since xen_disk now always copies data to and from a guest there is no need
to maintain a vector entry corresponding to every page of a request.
This means there is less per-request state to maintain so the ioreq
structure can shrink significantly.

Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Acked-by: Anthony Perard <anthony.perard@citrix.com>
Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
2018-05-22 11:43:22 -07:00
Paul Durrant 06454c24ad xen_disk: remove use of grant map/unmap
Now that the (native or emulated) xen_be_copy_grant_refs() helper is
always available, the xen_disk code can be significantly simplified by
removing direct use of grant map and unmap operations.

Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Acked-by: Anthony Perard <anthony.perard@citrix.com>
Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
2018-05-22 11:43:21 -07:00
Paul Durrant 5ee1d99913 xen_disk: remove open-coded use of libxengnttab
Now that helpers are present in xen_backend, this patch removes open-coded
calls to libxengnttab from the xen_disk code.

This patch also fixes one whitspace error in the assignment of the
XenDevOps initialise method.

Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Acked-by: Anthony Perard <anthony.perard@citrix.com>
Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
2018-05-22 11:43:21 -07:00
Paul Durrant 5c0d914a9b xen: add a meaningful declaration of grant_copy_segment into xen_common.h
Currently the xen_disk source has to carry #ifdef exclusions to compile
against Xen older then 4.8. This is a bit messy so this patch lifts the
definition of struct xengnttab_grant_copy_segment and adds it into the
pre-4.8 compat area in xen_common.h, which allows xen_disk to be cleaned
up.

Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Acked-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
2018-05-22 11:43:21 -07:00
Laurent Vivier 4a4ff4c58f Remove unnecessary variables for function return value
Re-run Coccinelle script scripts/coccinelle/return_directly.cocci

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
ppc part
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2018-05-20 08:48:13 +03:00
Philippe Mathieu-Daudé 07c13a7172 hw/block/pflash_cfi: fix off-by-one error
ASAN reported:

    hw/block/pflash_cfi02.c:245:33: runtime error: index 82 out of bounds for type 'uint8_t [82]'

Since the 'cfi_len' member is not used, remove it to keep the code safer.

Cc: qemu-stable@nongnu.org
Reported-by: AddressSanitizer
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-04-10 16:33:08 +02:00
Maxime Coquelin bc6abcff7c vhost-user-blk: set config ops before vhost-user init
As soon as vhost-user init is done, the backend may send
VHOST_USER_SLAVE_CONFIG_CHANGE_MSG, so let's set the
notification callback before it.

Also, it will be used to know whether the device supports
the config feature to advertize it or not.

Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Changpeng Liu <changpeng.liu@intel.com>
2018-04-09 17:35:45 +03:00
Alexey Kardashevskiy b3da551389 fdc: Exit if ISA controller does not support DMA
A "powernv" machine type defines an ISA bus but it does not add any DMA
controller to it so it is possible to hit assert(fdctrl->dma) by
adding "-machine powernv -device isa-fdc".

This replaces assert() with an error message.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
[thuth: Slightly adjusted error message and updated scripts/device-crash-test]
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1521193892-15552-3-git-send-email-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-03-26 14:37:13 +02:00
Stefan Hajnoczi 1010cadf62 virtio-blk: fix race between .ioeventfd_stop() and vq handler
If the main loop thread invokes .ioeventfd_stop() just as the vq handler
function begins in the IOThread then the handler may lose the race for
the AioContext lock.  By the time the vq handler is able to acquire the
AioContext lock the ioeventfd has already been removed and the handler
isn't supposed to run anymore!

Use the new aio_wait_bh_oneshot() function to perform ioeventfd removal
from within the IOThread.  This way no races with the vq handler are
possible.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 20180307144205.20619-3-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2018-03-08 17:38:51 +00:00
Sergio Lopez 12c1c7d7ce virtio-blk: dataplane: Don't batch notifications if EVENT_IDX is present
Commit 5b2ffbe4d9 ("virtio-blk: dataplane:
notify guest as a batch") deferred guest notification to a BH in order
batch notifications, with purpose of avoiding flooding the guest with
interruptions.

This optimization came with a cost. The average latency perceived in the
guest is increased by a few microseconds, but also when multiple IO
operations finish at the same time, the guest won't be notified until
all completions from each operation has been run. On the contrary,
virtio-scsi issues the notification at the end of each completion.

On the other hand, nowadays we have the EVENT_IDX feature that allows a
better coordination between QEMU and the Guest OS to avoid sending
unnecessary interruptions.

With this change, virtio-blk/dataplane only batches notifications if the
EVENT_IDX feature is not present.

Some numbers obtained with fio (ioengine=sync, iodepth=1, direct=1):
 - Test specs:
   * fio-3.4 (ioengine=sync, iodepth=1, direct=1)
   * qemu master
   * virtio-blk with a dedicated iothread (default poll-max-ns)
   * backend: null_blk nr_devices=1 irqmode=2 completion_nsec=280000
   * 8 vCPUs pinned to isolated physical cores
   * Emulator and iothread also pinned to separate isolated cores
   * variance between runs < 1%

 - Not patched
   * numjobs=1:  lat_avg=327.32  irqs=29998
   * numjobs=4:  lat_avg=337.89  irqs=29073
   * numjobs=8:  lat_avg=342.98  irqs=28643

 - Patched:
   * numjobs=1:  lat_avg=323.92  irqs=30262
   * numjobs=4:  lat_avg=332.65  irqs=29520
   * numjobs=8:  lat_avg=335.54  irqs=29323

Signed-off-by: Sergio Lopez <slp@redhat.com>
Message-id: 20180307114459.26636-1-slp@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2018-03-08 15:59:03 +00:00
Markus Armbruster 9af2398977 Include less of the generated modular QAPI headers
In my "build everything" tree, a change to the types in
qapi-schema.json triggers a recompile of about 4800 out of 5100
objects.

The previous commit split up qmp-commands.h, qmp-event.h, qmp-visit.h,
qapi-types.h.  Each of these headers still includes all its shards.
Reduce compile time by including just the shards we actually need.

To illustrate the benefits: adding a type to qapi/migration.json now
recompiles some 2300 instead of 4800 objects.  The next commit will
improve it further.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180211093607.27351-24-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
[eblake: rebase to master]
Signed-off-by: Eric Blake <eblake@redhat.com>
2018-03-02 13:45:50 -06:00
Stefan Hajnoczi 7f1d87ab0f trace: avoid SystemTap "char const" warnings
SystemTap's dtrace(1) produces the following warning when it encounters
"char const" instead of "const char":

  Warning: /usr/bin/dtrace:trace-dtrace-root.dtrace:66: syntax error near:
  probe flatview_destroy_rcu

  Warning: Proceeding as if --no-pyparsing was given.

This is a limitation in current SystemTap releases.  I have sent a patch
upstream to accept "char const" since it is valid C:

  https://sourceware.org/ml/systemtap/2018-q1/msg00017.html

In QEMU we still wish to avoid warnings in the current SystemTap
release.  It's simple enough to replace "char const" with "const char".

I'm not changing the documentation or implementing checks to prevent
this from occurring again in the future.  The next release of SystemTap
will hopefully resolve this issue.

Cc: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 20180201162625.4276-1-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2018-02-19 13:09:44 +00:00
Peter Maydell b734ed9de1 virtio,vhost,pci,pc: features, fixes and cleanups
- new stats in virtio balloon
 - virtio eventfd rework for boot speedup
 - vhost memory rework for boot speedup
 - fixes and cleanups all over the place
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

virtio,vhost,pci,pc: features, fixes and cleanups

- new stats in virtio balloon
- virtio eventfd rework for boot speedup
- vhost memory rework for boot speedup
- fixes and cleanups all over the place

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

# gpg: Signature made Tue 13 Feb 2018 16:29:55 GMT
# gpg:                using RSA key 281F0DB8D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>"
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* remotes/mst/tags/for_upstream: (22 commits)
  virtio-balloon: include statistics of disk/file caches
  acpi-test: update FADT
  lpc: drop pcie host dependency
  tests: acpi: fix FADT not being compared to reference table
  hw/pci-bridge: fix pcie root port's IO hints capability
  libvhost-user: Support across-memory-boundary access
  libvhost-user: Fix resource leak
  virtio-balloon: unref the memory region before continuing
  pci: removed the is_express field since a uniform interface was inserted
  virtio-blk: enable multiple vectors when using multiple I/O queues
  pci/bus: let it has higher migration priority
  pci-bridge/i82801b11: clear bridge registers on platform reset
  vhost: Move log_dirty check
  vhost: Merge and delete unused callbacks
  vhost: Clean out old vhost_set_memory and friends
  vhost: Regenerate region list from changed sections list
  vhost: Merge sections added to temporary list
  vhost: Simplify ring verification checks
  vhost: Build temporary section list and deref after commit
  virtio: improve virtio devices initialization time
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-13 16:33:31 +00:00
Markus Armbruster 8f0a3716e4 Clean up includes
Clean up includes so that osdep.h is included first and headers
which it implies are not included manually.

This commit was created with scripts/clean-includes, with the change
to target/s390x/gen-features.c manually reverted, and blank lines
around deletions collapsed.

Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180201111846.21846-3-armbru@redhat.com>
2018-02-09 05:05:11 +01:00
Yoni Bettan d61a363d3e pci: removed the is_express field since a uniform interface was inserted
according to Eduardo Habkost's commit fd3b02c889 all PCIEs now implement
INTERFACE_PCIE_DEVICE so we don't need is_express field anymore.

Devices that implements only INTERFACE_PCIE_DEVICE (is_express == 1)
or
devices that implements only INTERFACE_CONVENTIONAL_PCI_DEVICE (is_express == 0)
where not affected by the change.

The only devices that were affected are those that are hybrid and also
had (is_express == 1) - therefor only:
  - hw/vfio/pci.c
  - hw/usb/hcd-xhci.c
  - hw/xen/xen_pt.c

For those 3 I made sure that QEMU_PCI_CAP_EXPRESS is on in instance_init()

Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Yoni Bettan <ybettan@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2018-02-08 21:06:41 +02:00
Gal Hammer 76143618a5 virtio: remove event notifier cleanup call on de-assign
The virtio_bus_set_host_notifier function no longer calls
event_notifier_cleanup when a event notifier is removed.

The commit updates the code to match the new behavior and calls
virtio_bus_cleanup_host_notifier after the notifier was de-assign
and no longer in use.

This change is a preparation to allow executing the
virtio_bus_set_host_notifier function in a memory region
transaction.

Signed-off-by: Gal Hammer <ghammer@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Tested-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2018-02-08 21:06:26 +02:00
Fam Zheng a3d9a352d4 block: Move NVMe constants to a separate header
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20180116060901.17413-8-famz@redhat.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
2018-02-08 09:22:03 +08:00
Peter Maydell f78b6f9b11 Block layer patches
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Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer patches

# gpg: Signature made Tue 23 Jan 2018 12:38:36 GMT
# gpg:                using RSA key 0x7F09B272C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74  56FE 7F09 B272 C88F 2FD6

* remotes/kevin/tags/for-upstream: (29 commits)
  iotests: Disable some tests for compat=0.10
  iotests: Split 177 into two parts for compat=0.10
  iotests: Make 059 pass on machines with little RAM
  iotests: Filter compat-dependent info in 198
  iotests: Make 191 work with qcow2 options
  iotests: Make 184 image-less
  iotests: Make 089 compatible with compat=0.10
  iotests: Fix 067 for compat=0.10
  iotests: Fix 059's reference output
  iotests: Fix 051 for compat=0.10
  iotests: Fix 020 for vmdk
  iotests: Skip 103 for refcount_bits=1
  iotests: Forbid 020 for non-file protocols
  iotests: Drop format-specific in _filter_img_info
  iotests: Fix _img_info for backslashes
  block/vmdk: Add blkdebug events
  block/qcow: Add blkdebug events
  qcow2: No persistent dirty bitmaps for compat=0.10
  block/vmdk: Fix , instead of ; at end of line
  qemu-iotests: Fix locking issue in 102
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-01-24 22:55:57 +00:00
Hikaru Nishida 5e9aa92eb1 hw/block: Fix pin-based interrupt behaviour of NVMe
Pin-based interrupt of NVMe controller did not work properly
because using an obsolated function pci_irq_pulse().
To fix this, change to use pci_irq_assert() / pci_irq_deassert()
instead of pci_irq_pulse().

Signed-off-by: Hikaru Nishida <hikarupsp@gmail.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-01-23 12:33:07 +01:00
Alistair Francis c94a60cbfa Fixes after renaming __FUNCTION__ to __func__
Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Cc: Eric Blake <eblake@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2018-01-22 09:46:57 +01:00
Alistair Francis a89f364ae8 Replace all occurances of __FUNCTION__ with __func__
Replace all occurs of __FUNCTION__ except for the check in checkpatch
with the non GCC specific __func__.

One line in hcd-musb.c was manually tweaked to pass checkpatch.

Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Anthony PERARD <anthony.perard@citrix.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
[THH: Removed hunks related to pxa2xx_mmci.c (fixed already)]
Signed-off-by: Thomas Huth <thuth@redhat.com>
2018-01-22 09:46:18 +01:00