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  1. 04 10月, 2016 8 次提交
  3. 30 9月, 2016 5 次提交
  5. 29 9月, 2016 16 次提交
    • P
      Merge remote-tracking branch 'remotes/stefanha/tags/tracing-pull-request' into staging · cc9a366d
      由 Peter Maydell 提交于 
      # gpg: Signature made Wed 28 Sep 2016 22:30:45 BST
# gpg:                using RSA key 0x9CA4ABB381AB73C8
# 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:
  trace: Document the execution mode of guest events
  trace: Add event "guest_cpu_reset"
  trace: Add event "guest_cpu_enter"
  trace: Properly initialize dynamic event states in hot-plugged vCPUs
  trace: move hw/virtio/virtio-balloon.c trace points into correct file
  trace: move hw/mem/pc-dimm.c trace points into correct file
  trace: move util/qemu-coroutine*.c trace points into correct file
  trace: move util/buffer.c trace points into correct file
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
      cc9a366d
    • P
      Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging · c640f284
      由 Peter Maydell 提交于 
      * thread-safe tb_flush (Fred, Alex, Sergey, me, Richard, Emilio,... :-)
* license clarification for compiler.h (Felipe)
* glib cflags improvement (Marc-André)
* checkpatch silencing (Paolo)
* SMRAM migration fix (Paolo)
* Replay improvements (Pavel)
* IOMMU notifier improvements (Peter)
* IOAPIC now defaults to version 0x20 (Peter)

# gpg: Signature made Tue 27 Sep 2016 10:57:40 BST
# gpg:                using RSA key 0xBFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>"
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* remotes/bonzini/tags/for-upstream: (28 commits)
  replay: allow replay stopping and restarting
  replay: vmstate for replay module
  replay: move internal data to the structure
  cpus-common: lock-free fast path for cpu_exec_start/end
  tcg: Make tb_flush() thread safe
  cpus-common: Introduce async_safe_run_on_cpu()
  cpus-common: simplify locking for start_exclusive/end_exclusive
  cpus-common: remove redundant call to exclusive_idle()
  cpus-common: always defer async_run_on_cpu work items
  docs: include formal model for TCG exclusive sections
  cpus-common: move exclusive work infrastructure from linux-user
  cpus-common: fix uninitialized variable use in run_on_cpu
  cpus-common: move CPU work item management to common code
  cpus-common: move CPU list management to common code
  linux-user: Add qemu_cpu_is_self() and qemu_cpu_kick()
  linux-user: Use QemuMutex and QemuCond
  cpus: Rename flush_queued_work()
  cpus: Move common code out of {async_, }run_on_cpu()
  cpus: pass CPUState to run_on_cpu helpers
  build-sys: put glib_cflags in QEMU_CFLAGS
  ...
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
      c640f284
    • P
      Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging · bc63afaf
      由 Peter Maydell 提交于 
      # gpg: Signature made Wed 28 Sep 2016 19:15:22 BST
# gpg:                using RSA key 0x9CA4ABB381AB73C8
# 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/block-pull-request:
  linux-aio: fix re-entrant completion processing
  test-coroutine: test qemu_coroutine_entered()
  coroutine: add qemu_coroutine_entered() function
  libqos: fix qvring_init()
  iothread: check iothread->ctx before aio_context_unref to avoid assertion
  aio-posix: avoid unnecessary aio_epoll_enabled() calls
  block: mirror: fix wrong comment of mirror_start
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
      bc63afaf
    • L
      trace: Document the execution mode of guest events · 43e21e49
      由 Lluís Vilanova 提交于 
      Explicitly state in which execution mode (user, softmmu, all) are guest
events available for tracing.
Signed-off-by: NLluís Vilanova <vilanova@ac.upc.edu>
Message-id: 147456962135.11114.6146034359114598596.stgit@fimbulvetr.bsc.es
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
      43e21e49
    • L
      trace: Add event "guest_cpu_reset" · 2cc2d082
      由 Lluís Vilanova 提交于 
      Signals the reset of the state a virtual (guest) CPU.
Signed-off-by: NLluís Vilanova <vilanova@ac.upc.edu>
Message-id: 147428971851.15111.8799439252178273840.stgit@fimbulvetr.bsc.es
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
      2cc2d082
    • L
      trace: Add event "guest_cpu_enter" · b9d72215
      由 Lluís Vilanova 提交于 
      Signals the hot-plugging of a new virtual (guest) CPU.
Signed-off-by: NLluís Vilanova <vilanova@ac.upc.edu>
Message-id: 147428971313.15111.18023030883528426840.stgit@fimbulvetr.bsc.es
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
      b9d72215
    • L
      trace: Properly initialize dynamic event states in hot-plugged vCPUs · 2bfe11c8
      由 Lluís Vilanova 提交于 
      Every time a vCPU is hot-plugged, it will "inherit" its tracing state
from the global state array. That is, if *any* existing vCPU has an
event enabled, new vCPUs will have too.
Signed-off-by: NLluís Vilanova <vilanova@ac.upc.edu>
Message-id: 147428970768.15111.7664565956870423529.stgit@fimbulvetr.bsc.es
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
      2bfe11c8
    • D
      trace: move hw/virtio/virtio-balloon.c trace points into correct file · 331f5eb2
      由 Daniel P. Berrange 提交于 
      The trace points for hw/virtio/virtio-balloon.c were mistakenly put
in the top level trace-events file, instead of util/trace-events in

  commit 270ab88f
  Author: Daniel P. Berrange <berrange@redhat.com>
  Date:   Thu Jun 16 09:39:57 2016 +0100

    trace: split out trace events for hw/virtio/ directory
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>
Reviewed-by: NEric Blake <eblake@redhat.com>
Message-id: 1473872624-23285-5-git-send-email-berrange@redhat.com
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
      331f5eb2
    • D
      trace: move hw/mem/pc-dimm.c trace points into correct file · e97eb6f7
      由 Daniel P. Berrange 提交于 
      The trace points for hw/mem/pc-dimm.c were mistakenly put
in the hw/i386/trace-events file, instead of hw/mem/trace-events
in

  commit 5eb76e48
  Author: Daniel P. Berrange <berrange@redhat.com>
  Date:   Thu Jun 16 09:40:10 2016 +0100

    trace: split out trace events for hw/i386/ directory
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>
Reviewed-by: NEric Blake <eblake@redhat.com>
Message-id: 1473872624-23285-4-git-send-email-berrange@redhat.com
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
      e97eb6f7
    • D
      trace: move util/qemu-coroutine*.c trace points into correct file · a409aada
      由 Daniel P. Berrange 提交于 
      The trace points for util/qemu-coroutine*.c were mistakenly left
in the top level trace-events file, instead of util/trace-events
in

  commit 492bb2dd
  Author: Daniel P. Berrange <berrange@redhat.com>
  Date:   Thu Jun 16 09:39:48 2016 +0100

    trace: split out trace events for util/ directory
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>
Reviewed-by: NEric Blake <eblake@redhat.com>
Message-id: 1473872624-23285-3-git-send-email-berrange@redhat.com
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
      a409aada
    • D
      trace: move util/buffer.c trace points into correct file · 2c7c4cf0
      由 Daniel P. Berrange 提交于 
      The trace points for util/buffer.c were mistakenly put
in the io/trace-events file, instead of util/trace-events
in

  commit 892bd32e
  Author: Daniel P. Berrange <berrange@redhat.com>
  Date:   Thu Jun 16 09:39:50 2016 +0100

    trace: split out trace events for io/ directory

    Move all trace-events for files in the io/ directory to
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>
Reviewed-by: NEric Blake <eblake@redhat.com>
Message-id: 1473872624-23285-2-git-send-email-berrange@redhat.com
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
      2c7c4cf0
    • P
      Merge remote-tracking branch 'remotes/kraxel/tags/pull-input-20160928-1' into staging · 4af27939
      由 Peter Maydell 提交于 
      input queue: ps2 kbd cleanups and improvements

# gpg: Signature made Wed 28 Sep 2016 13:52:16 BST
# gpg:                using RSA key 0x4CB6D8EED3E87138
# 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>"
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* remotes/kraxel/tags/pull-input-20160928-1:
  ps2: do not generate invalid key codes for unknown keys
  ps2: use QEMU qcodes instead of scancodes
  ps2: allow keycode translation for all scancode sets
  ps2: correctly handle 'get/set scancode' command
  ps2: reject unknown commands, instead of blindly accepting them
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
      4af27939
    • P
      Merge remote-tracking branch 'remotes/kraxel/tags/pull-ui-20160928-1' into staging · 79907e68
      由 Peter Maydell 提交于 
      ui: console+vnc fixes, switch spice to pure opengl with gl=on.

# gpg: Signature made Wed 28 Sep 2016 11:57:35 BST
# gpg:                using RSA key 0x4CB6D8EED3E87138
# 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>"
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* remotes/kraxel/tags/pull-ui-20160928-1:
  ui/vnc-enc-tight: remove switch and have single return
  spice/gl: render DisplaySurface via opengl
  console: track gl_block state in QemuConsole
  console: skip same-size resize
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
      79907e68
    • S
      linux-aio: fix re-entrant completion processing · fe121b9d
      由 Stefan Hajnoczi 提交于 
      Commit 0ed93d84 ("linux-aio: process
completions from ioq_submit()") added an optimization that processes
completions each time ioq_submit() returns with requests in flight.
This commit introduces a "Co-routine re-entered recursively" error which
can be triggered with -drive format=qcow2,aio=native.

Fam Zheng <famz@redhat.com>, Kevin Wolf <kwolf@redhat.com>, and I
debugged the following backtrace:

  (gdb) bt
  #0  0x00007ffff0a046f5 in raise () at /lib64/libc.so.6
  #1  0x00007ffff0a062fa in abort () at /lib64/libc.so.6
  #2  0x0000555555ac0013 in qemu_coroutine_enter (co=0x5555583464d0) at util/qemu-coroutine.c:113
  #3  0x0000555555a4b663 in qemu_laio_process_completions (s=s@entry=0x555557e2f7f0) at block/linux-aio.c:218
  #4  0x0000555555a4b874 in ioq_submit (s=s@entry=0x555557e2f7f0) at block/linux-aio.c:331
  #5  0x0000555555a4ba12 in laio_do_submit (fd=fd@entry=13, laiocb=laiocb@entry=0x555559d38ae0, offset=offset@entry=2932727808, type=type@entry=1) at block/linux-aio.c:383
  #6  0x0000555555a4bbd3 in laio_co_submit (bs=<optimized out>, s=0x555557e2f7f0, fd=13, offset=2932727808, qiov=0x555559d38e20, type=1) at block/linux-aio.c:402
  #7  0x0000555555a4fd23 in bdrv_driver_preadv (bs=bs@entry=0x55555663bcb0, offset=offset@entry=2932727808, bytes=bytes@entry=8192, qiov=qiov@entry=0x555559d38e20, flags=0) at block/io.c:804
  #8  0x0000555555a52b34 in bdrv_aligned_preadv (bs=bs@entry=0x55555663bcb0, req=req@entry=0x555559d38d20, offset=offset@entry=2932727808, bytes=bytes@entry=8192, align=align@entry=512, qiov=qiov@entry=0x555559d38e20, flags=0) at block/io.c:1041
  #9  0x0000555555a52db8 in bdrv_co_preadv (child=<optimized out>, offset=2932727808, bytes=8192, qiov=qiov@entry=0x555559d38e20, flags=flags@entry=0) at block/io.c:1133
  #10 0x0000555555a29629 in qcow2_co_preadv (bs=0x555556635890, offset=6178725888, bytes=8192, qiov=0x555557527840, flags=<optimized out>) at block/qcow2.c:1509
  #11 0x0000555555a4fd23 in bdrv_driver_preadv (bs=bs@entry=0x555556635890, offset=offset@entry=6178725888, bytes=bytes@entry=8192, qiov=qiov@entry=0x555557527840, flags=0) at block/io.c:804
  #12 0x0000555555a52b34 in bdrv_aligned_preadv (bs=bs@entry=0x555556635890, req=req@entry=0x555559d39000, offset=offset@entry=6178725888, bytes=bytes@entry=8192, align=align@entry=1, qiov=qiov@entry=0x555557527840, flags=0) at block/io.c:1041
  #13 0x0000555555a52db8 in bdrv_co_preadv (child=<optimized out>, offset=offset@entry=6178725888, bytes=bytes@entry=8192, qiov=qiov@entry=0x555557527840, flags=flags@entry=0) at block/io.c:1133
  #14 0x0000555555a4515a in blk_co_preadv (blk=0x5555566356d0, offset=6178725888, bytes=8192, qiov=0x555557527840, flags=0) at block/block-backend.c:783
  #15 0x0000555555a45266 in blk_aio_read_entry (opaque=0x5555577025e0) at block/block-backend.c:991
  #16 0x0000555555ac0cfa in coroutine_trampoline (i0=<optimized out>, i1=<optimized out>) at util/coroutine-ucontext.c:78

It turned out that re-entrant ioq_submit() and completion processing
between three requests caused this error.  The following check is not
sufficient to prevent recursively entering coroutines:

  if (laiocb->co != qemu_coroutine_self()) {
      qemu_coroutine_enter(laiocb->co);
  }

As the following coroutine backtrace shows, not just the current
coroutine (self) can be entered.  There might also be other coroutines
that are currently entered and transferred control due to the qcow2 lock
(CoMutex):

  (gdb) qemu coroutine 0x5555583464d0
  #0  0x0000555555ac0c90 in qemu_coroutine_switch (from_=from_@entry=0x5555583464d0, to_=to_@entry=0x5555572f9890, action=action@entry=COROUTINE_ENTER) at util/coroutine-ucontext.c:175
  #1  0x0000555555abfe54 in qemu_coroutine_enter (co=0x5555572f9890) at util/qemu-coroutine.c:117
  #2  0x0000555555ac031c in qemu_co_queue_run_restart (co=co@entry=0x5555583462c0) at util/qemu-coroutine-lock.c:60
  #3  0x0000555555abfe5e in qemu_coroutine_enter (co=0x5555583462c0) at util/qemu-coroutine.c:119
  #4  0x0000555555a4b663 in qemu_laio_process_completions (s=s@entry=0x555557e2f7f0) at block/linux-aio.c:218
  #5  0x0000555555a4b874 in ioq_submit (s=s@entry=0x555557e2f7f0) at block/linux-aio.c:331
  #6  0x0000555555a4ba12 in laio_do_submit (fd=fd@entry=13, laiocb=laiocb@entry=0x55555a338b40, offset=offset@entry=2911477760, type=type@entry=1) at block/linux-aio.c:383
  #7  0x0000555555a4bbd3 in laio_co_submit (bs=<optimized out>, s=0x555557e2f7f0, fd=13, offset=2911477760, qiov=0x55555a338e80, type=1) at block/linux-aio.c:402
  #8  0x0000555555a4fd23 in bdrv_driver_preadv (bs=bs@entry=0x55555663bcb0, offset=offset@entry=2911477760, bytes=bytes@entry=8192, qiov=qiov@entry=0x55555a338e80, flags=0) at block/io.c:804
  #9  0x0000555555a52b34 in bdrv_aligned_preadv (bs=bs@entry=0x55555663bcb0, req=req@entry=0x55555a338d80, offset=offset@entry=2911477760, bytes=bytes@entry=8192, align=align@entry=512, qiov=qiov@entry=0x55555a338e80, flags=0) at block/io.c:1041
  #10 0x0000555555a52db8 in bdrv_co_preadv (child=<optimized out>, offset=2911477760, bytes=8192, qiov=qiov@entry=0x55555a338e80, flags=flags@entry=0) at block/io.c:1133
  #11 0x0000555555a29629 in qcow2_co_preadv (bs=0x555556635890, offset=6157475840, bytes=8192, qiov=0x5555575df720, flags=<optimized out>) at block/qcow2.c:1509
  #12 0x0000555555a4fd23 in bdrv_driver_preadv (bs=bs@entry=0x555556635890, offset=offset@entry=6157475840, bytes=bytes@entry=8192, qiov=qiov@entry=0x5555575df720, flags=0) at block/io.c:804
  #13 0x0000555555a52b34 in bdrv_aligned_preadv (bs=bs@entry=0x555556635890, req=req@entry=0x55555a339060, offset=offset@entry=6157475840, bytes=bytes@entry=8192, align=align@entry=1, qiov=qiov@entry=0x5555575df720, flags=0) at block/io.c:1041
  #14 0x0000555555a52db8 in bdrv_co_preadv (child=<optimized out>, offset=offset@entry=6157475840, bytes=bytes@entry=8192, qiov=qiov@entry=0x5555575df720, flags=flags@entry=0) at block/io.c:1133
  #15 0x0000555555a4515a in blk_co_preadv (blk=0x5555566356d0, offset=6157475840, bytes=8192, qiov=0x5555575df720, flags=0) at block/block-backend.c:783
  #16 0x0000555555a45266 in blk_aio_read_entry (opaque=0x555557231aa0) at block/block-backend.c:991
  #17 0x0000555555ac0cfa in coroutine_trampoline (i0=<optimized out>, i1=<optimized out>) at util/coroutine-ucontext.c:78

Use the new qemu_coroutine_entered() function instead of comparing
against qemu_coroutine_self().  This is correct because:

1. If a coroutine is not entered then it must have yielded to wait for
   I/O completion.  It is therefore safe to enter.

2. If a coroutine is entered then it must be in
   ioq_submit()/qemu_laio_process_completions() because otherwise it
   would be yielded while waiting for I/O completion.  Therefore it will
   check laio->ret and return from ioq_submit() instead of yielding,
   i.e. it's guaranteed not to hang.
Reported-by: NFam Zheng <famz@redhat.com>
Tested-by: NFam Zheng <famz@redhat.com>
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: NFam Zheng <famz@redhat.com>
Message-id: 1474989516-18255-4-git-send-email-stefanha@redhat.com
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
      fe121b9d
    • S
      test-coroutine: test qemu_coroutine_entered() · afe16f3f
      由 Stefan Hajnoczi 提交于 
      Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: NFam Zheng <famz@redhat.com>
Message-id: 1474989516-18255-3-git-send-email-stefanha@redhat.com
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
      afe16f3f
    • S
      coroutine: add qemu_coroutine_entered() function · f643e469
      由 Stefan Hajnoczi 提交于 
      See the doc comments for a description of this new coroutine API.
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: NFam Zheng <famz@redhat.com>
Message-id: 1474989516-18255-2-git-send-email-stefanha@redhat.com
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
      f643e469
  7. 28 9月, 2016 11 次提交