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  1. 24 12月, 2010 1 次提交
  3. 19 12月, 2010 1 次提交
  5. 17 12月, 2010 1 次提交
  7. 09 12月, 2010 1 次提交
  9. 25 11月, 2010 1 次提交
    • R
      Implement drive_del to decouple block removal from device removal · 9063f814
      由 Ryan Harper 提交于 
      Currently device hotplug removal code is tied to device removal via
ACPI.  All pci devices that are removable via device_del() require the
guest to respond to the request.  In some cases the guest may not
respond leaving the device still accessible to the guest.  The management
layer doesn't currently have a reliable way to revoke access to host
resource in the presence of an uncooperative guest.

This patch implements a new monitor command, drive_del, which
provides an explicit command to revoke access to a host block device.

drive_del first quiesces the block device (qemu_aio_flush;
bdrv_flush() and bdrv_close()).  This prevents further IO from being
submitted against the host device.  Finally, drive_del cleans up
pointers between the drive object (host resource) and the device
object (guest resource).
Signed-off-by: NRyan Harper <ryanh@us.ibm.com>
Signed-off-by: NKevin Wolf <kwolf@redhat.com>
      9063f814
  11. 04 11月, 2010 1 次提交
  13. 01 10月, 2010 3 次提交
  15. 10 9月, 2010 2 次提交
    • S
      trace: Add trace-file command to open/close/flush trace file · c5ceb523
      由 Stefan Hajnoczi 提交于 
      This patch adds the trace-file command:

  trace-file [on|off|flush]

  Open, close, or flush the trace file.  If no argument is given,
  the status of the trace file is displayed.

The trace file is turned on by default but is only written out when the
trace buffer becomes full.  The flush operation can be used to force
write out at any time.

Turning off the trace file does not change the state of trace events;
tracing will continue to the trace buffer.  When the trace file is off,
use "info trace" to display the contents of the trace buffer in memory.
Signed-off-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com>

This commit also contains the trace-file sub-command from the following
commit:

commit 5ce8d1a957afae2c52ad748944ce72848ccf57bd
Author: Prerna Saxena <prerna@linux.vnet.ibm.com>
Date:   Wed Aug 4 16:23:54 2010 +0530

    trace: Add options to specify trace file name at startup and runtime

    This patch adds an optional command line switch '-trace' to specify the
    filename to write traces to, when qemu starts.
    Eg, If compiled with the 'simple' trace backend,
    [temp@system]$ qemu -trace FILENAME IMAGE
    Allows the binary traces to be written to FILENAME instead of the option
    set at config-time.

    Also, this adds monitor sub-command 'set' to trace-file commands to
    dynamically change trace log file at runtime.
    Eg,
    (qemu)trace-file set FILENAME
    This allows one to set trace outputs to FILENAME from the default
    specified at startup.
Signed-off-by: NPrerna Saxena <prerna@linux.vnet.ibm.com>
Signed-off-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com>
      c5ceb523
    • P
      trace: Support for dynamically enabling/disabling trace events · 22890ab5
      由 Prerna Saxena 提交于 
      This patch adds support for dynamically enabling/disabling of trace events.
This is done by internally maintaining each trace event's state, and
permitting logging of data from a trace event only if it is in an
'active' state.

Monitor commands added :
1) info trace-events 		: to view all available trace events and
				  their state.
2) trace-event NAME on|off 	: to enable/disable data logging from a
				  given trace event.
				  Eg, trace-event paio_submit off
				  	disables logging of data when
					paio_submit is hit.

By default, all trace-events are disabled. One can enable desired trace-events
via the monitor.
Signed-off-by: NPrerna Saxena <prerna@linux.vnet.ibm.com>
Signed-off-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com>

trace: Monitor command 'info trace'

Monitor command 'info trace' to display contents of trace buffer
Signed-off-by: NPrerna Saxena <prerna@linux.vnet.ibm.com>
Signed-off-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com>

trace: Remove monitor.h dependency from simpletrace

User-mode targets don't have a monitor so the simple trace backend
currently does not build on those targets.  This patch abstracts the
monitor printing interface so there is no direct coupling between
simpletrace and the monitor.
Signed-off-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com>
      22890ab5
  17. 23 8月, 2010 2 次提交
  19. 02 7月, 2010 1 次提交
  21. 13 6月, 2010 1 次提交
  23. 02 6月, 2010 2 次提交
    • J
      QMP: Introduce commands documentation · b40292e7
      由 Jan Kiszka 提交于 
      One of the most important missing feature in QMP today is its
supported commands documentation.

The plan is to make it part of self-description support, however
self-description is a big task we have been postponing for a
long time now and still don't know when it's going to be done.

In order not to compromise QMP adoption and make users' life easier,
this commit adds a simple text documentation which fully describes
all QMP supported commands.

This is not ideal for a number of reasons (harder to maintain,
text-only, etc) but does improve the current situation. To avoid at
least divering from the user monitor help and texi snippets, QMP bits
are also maintained inside qemu-monitor.hx, and hxtool is extended to
generate a single text file from them.
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
      b40292e7
    • J
      monitor: Reorder info documentation · 33572ece
      由 Jan Kiszka 提交于 
      Push the doc fragments for the info command to the end of
qemu-monitor.hx. This helps to establish a proper layout in the upcoming
QMP documentation.
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
      33572ece
  25. 29 5月, 2010 2 次提交
  27. 19 5月, 2010 2 次提交
    • M
      Revert "monitor: Convert do_pci_device_hot_remove() to QObject" · b752daf0
      由 Markus Armbruster 提交于 
      We don't want pci_del in QMP.  Use device_del instead.

This reverts commit 6848d827.

Conflicts:

	hw/pci-hotplug.c
	sysemu.h
Signed-off-by: NMarkus Armbruster <armbru@redhat.com>
      b752daf0
    • M
      Revert "PCI: Convert pci_device_hot_add() to QObject" · 6c6a58ae
      由 Markus Armbruster 提交于 
      Short story: We don't want pci_add in QMP.  Long story follows.

pci_add can do two things:

* Hot plug a PCI NIC.  device_add is more general.

* Hot plug a PCI disk controller, and a drive connected to it.

  The controller is either virtio-blk-pci (if=virtio) or lsi53c895a
  (if=scsi).  With the latter, the drive is optional.  Use drive_add to
  hotplug additional SCSI drives.  Except drive_add is not available in
  QMP.

  device_add is more general for controllers and the guest part of
  drives.  I'm working on a more general alternative for the host part
  of drives.

Why am I proposing to remove pci_add from QMP before its replacement is
ready?  I want it out sooner rather than later, because it isn't fully
functional (errors and drive_add are missing), and we do not plan to
complete the job.  In other words, it's not really usable over QMP now,
and it's not what we want for QMP anyway.  Since we don't want it to be
used over QMP, we should take it out, not leave it around as a trap for
the uninitiated.

Dan Berrange confirmed that libvirt has no need for pci_add & friends
over QMP.

This reverts commit 7a344f7a.

Conflicts:

	hw/pci-hotplug.c
	sysemu.h
Signed-off-by: NMarkus Armbruster <armbru@redhat.com>
      6c6a58ae
  29. 11 5月, 2010 4 次提交
  31. 19 4月, 2010 6 次提交
  33. 17 3月, 2010 2 次提交
  35. 20 2月, 2010 7 次提交