Commit Graph

604 Commits

Author SHA1 Message Date
Andreas Färber 8c5cf3b621 target-i386: Pass X86CPU to cpu_x86_inject_mce()
Needed for changing run_on_cpu() argument to CPUState.

Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-10-31 04:12:23 +01:00
Paolo Bonzini a66a2a3683 block: introduce BLOCK_JOB_READY event
Even for jobs that need to be manually completed, management may want
to take care itself of the completion, not requiring the user to issue
a command to terminate the job.  In this case we want to avoid that
they poll us continuously, waiting for completion to become available.
Thus, add a new event that signals the phase switch and the availability
of the block-job-complete command.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-10-24 10:26:19 +02:00
Corey Bryant ebe52b592d monitor: Prevent removing fd from set during init
If an fd is added to an fd set via the command line, and it is not
referenced by another command line option (ie. -drive), then clean
it up after QEMU initialization is complete.

Signed-off-by: Corey Bryant <coreyb@linux.vnet.ibm.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-10-24 10:26:19 +02:00
Corey Bryant e446f70d54 monitor: Enable adding an inherited fd to an fd set
qmp_add_fd() gets an fd that was received over a socket with
SCM_RIGHTS and adds it to an fd set.  This patch adds support
that will enable adding an fd that was inherited on the
command line to an fd set.

Note: All of the code added to monitor_fdset_add_fd(), with the
exception of the error path for non-valid fdset-id, is code motion
from qmp_add_fd().

Signed-off-by: Corey Bryant <coreyb@linux.vnet.ibm.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-10-24 10:26:19 +02:00
Corey Bryant 9ac54af0c3 monitor: Allow add-fd to any specified fd set
The first call to add an fd to an fd set was previously not
allowed to choose the fd set ID.  The ID was generated as
the first available and ensuing calls could add more fds by
specifying the fd set ID.  This change allows users to
choose the fd set ID on the first call.

Signed-off-by: Corey Bryant <coreyb@linux.vnet.ibm.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-10-24 10:26:19 +02:00
Avi Kivity a8170e5e97 Rename target_phys_addr_t to hwaddr
target_phys_addr_t is unwieldly, violates the C standard (_t suffixes are
reserved) and its purpose doesn't match the name (most target_phys_addr_t
addresses are not target specific).  Replace it with a finger-friendly,
standards conformant hwaddr.

Outstanding patchsets can be fixed up with the command

  git rebase -i --exec 'find -name "*.[ch]"
                        | xargs s/target_phys_addr_t/hwaddr/g' origin

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-10-23 08:58:25 -05:00
Peter Maydell 6fd2a026fb cpu_dump_state: move DUMP_FPU and DUMP_CCOP flags from x86-only to generic
Move the DUMP_FPU and DUMP_CCOP flags for cpu_dump_state() from being
x86-specific flags to being generic ones. This allows us to drop some
TARGET_I386 ifdefs in various places, and means that we can (potentially)
be more consistent across architectures about which monitor commands or
debug abort printouts include FPU register contents and info about
QEMU's condition-code optimisations.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-10-05 15:04:43 +01:00
Anthony Liguori 05d4f2f2ca Merge remote-tracking branch 'kwolf/for-anthony' into staging
* kwolf/for-anthony: (30 commits)
  qemu-iotests: add tests for streaming error handling
  qemu-iotests: map underscore to dash in QMP argument names
  blkdebug: process all set_state rules in the old state
  stream: add on-error argument
  block: introduce block job error
  iostatus: reorganize io error code
  iostatus: change is_read to a bool
  iostatus: move BlockdevOnError declaration to QAPI
  iostatus: rename BlockErrorAction, BlockQMPEventAction
  qemu-iotests: add test for pausing a streaming operation
  qmp: add block-job-pause and block-job-resume
  block: add support for job pause/resume
  qmp: add 'busy' member to BlockJobInfo
  block: add block_job_query
  block: move job APIs to separate files
  block: fix documentation of block_job_cancel_sync
  qerror/block: introduce QERR_BLOCK_JOB_NOT_ACTIVE
  qemu-iotests: add initial tests for live block commit
  QAPI: add command for live block commit, 'block-commit'
  block: helper function, to find the base image of a chain
  ...
2012-10-04 19:53:50 -05:00
Anthony Liguori 97f3461555 Merge remote-tracking branch 'qmp/queue/qmp' into staging
* qmp/queue/qmp:
  block: live snapshot documentation tweaks
  input: index_from_key(): drop unused code
  qmp: qmp_send_key(): accept key codes in hex
  input: qmp_send_key(): simplify
  hmp: dump-guest-memory: hardcode protocol argument to "file:"
  qmp: dump-guest-memory: don't spin if non-blocking fd would block
  qmp: dump-guest-memory: improve schema doc (again)
  qapi: convert add_client
  monitor: add Error * argument to monitor_get_fd
  pci-assign: use monitor_handle_fd_param
  qapi: add "unix" to the set of reserved words
  qapi: do not protect enum values from namespace pollution
  Add qemu-ga-client script
  Support settimeout in QEMUMonitorProtocol
  Make negotiation optional in QEMUMonitorProtocol
2012-10-04 19:52:09 -05:00
Avi Kivity 4be403c815 Make target_phys_addr_t 64 bits unconditionally
The hassle and compile time overhead of maintaining both 32-bit and 64-bit
capable source isn't worth the tiny performance advantage which is seen on
a minority of configurations.  Switch to compiling libhw only once, with
target_phys_addr_t unconditionally typedefed to uint64_t.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-10-04 19:46:18 -05:00
Paolo Bonzini 32c81a4a6e block: introduce block job error
The following behaviors are possible:

'report': The behavior is the same as in 1.1.  An I/O error,
respectively during a read or a write, will complete the job immediately
with an error code.

'ignore': An I/O error, respectively during a read or a write, will be
ignored.  For streaming, the job will complete with an error and the
backing file will be left in place.  For mirroring, the sector will be
marked again as dirty and re-examined later.

'stop': The job will be paused and the job iostatus will be set to
failed or nospace, while the VM will keep running.  This can only be
specified if the block device has rerror=stop and werror=stop or enospc.

'enospc': Behaves as 'stop' for ENOSPC errors, 'report' for others.

In all cases, even for 'report', the I/O error is reported as a QMP
event BLOCK_JOB_ERROR, with the same arguments as BLOCK_IO_ERROR.

It is possible that while stopping the VM a BLOCK_IO_ERROR event will be
reported and will clobber the event from BLOCK_JOB_ERROR, or vice versa.
This is not really avoidable since stopping the VM completes all pending
I/O requests.  In fact, it is already possible now that a series of
BLOCK_IO_ERROR events are reported with rerror=stop, because vm_stop
calls bdrv_drain_all and this can generate further errors.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-09-28 19:40:56 +02:00
Luiz Capitulino b224e5e216 qapi: convert add_client
Also fixes a few issues while there:

 1. The fd returned by monitor_get_fd() leaks in most error conditions
 2. monitor_get_fd() return value is not checked. Best case we get
    an error that is not correctly reported, worse case one of the
    functions using the fd (with value of -1) will explode
 3. A few error conditions aren't reported
 4. We now "use up" @fdname always.  Before, it was left alone for
    invalid @protocol

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
2012-09-26 12:42:19 -03:00
Paolo Bonzini a9940fc4cb monitor: add Error * argument to monitor_get_fd
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
2012-09-26 12:42:19 -03:00
Anthony Liguori 14df77a609 Merge remote-tracking branch 'mst/tags/for_anthony' into staging
* mst/tags/for_anthony:
  vhost: Pass device path to vhost_dev_init()
  monitor: Rename+move net_handle_fd_param -> monitor_handle_fd_param
  pcie_aer: clear cmask for Advanced Error Interrupt Message Number
  pcie: drop version_id field for live migration
  qemu: add .exrc
2012-09-10 12:48:43 -05:00
Aurelien Jarno 69fc255350 Merge branch 'spice.v59' of git://anongit.freedesktop.org/spice/qemu
* 'spice.v59' of git://anongit.freedesktop.org/spice/qemu:
  Remove #ifdef QXL_COMMAND_FLAG_COMPAT_16BPP
  qxl: Add set_client_capabilities() interface to QXLInterface
  spice: make number of surfaces runtime-configurable.
  configure: print spice-protocol and spice-server versions
  qxl: add QXL_IO_MONITORS_CONFIG_ASYNC
  qxl: disallow unknown revisions
  qxl/update_area_io: guest_bug on invalid parameters
  spice: increase the verbosity of spice section in "qemu --help"
  spice: adding seamless-migration option to the command line
  spice: add 'migrated' flag to spice info
  spice migration: add QEVENT_SPICE_MIGRATE_COMPLETED
  spice: notify on vm state change only via spice_server_vm_start/stop
  spice: notify spice server on vm start/stop
  spice: abort on invalid streaming cmdline params
2012-09-10 15:32:11 +02:00
Nicholas Bellinger a96ed02fc7 monitor: Rename+move net_handle_fd_param -> monitor_handle_fd_param
This patch renames+moves the net_handle_fd_param() caller used to
obtain a file descriptor from either qemu_parse_fd() (the normal case)
or from monitor_get_fd() (migration case) into a generically prefixed
monitor_handle_fd_param() to be used by vhost-scsi code.

Also update net/[socket,tap].c consumers to use the new prefix.

Reported-by: Michael S. Tsirkin <mst@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2012-09-07 09:15:08 +03:00
Luiz Capitulino ad39cf6d15 qapi: convert screendump
Next commits will update devices to propagate errors.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-09-05 15:48:57 -03:00
Amos Kong e4c8f004c5 qapi: convert sendkey
Convert 'sendkey' to use QAPI.

QAPI passes key's index of mapping table to qmp_send_key(),
not keycode. So we use help functions to convert key/code to
index of key_defs, and 'index' will be converted to 'keycode'
inside qmp_send_key().

For qmp, QAPI would check invalid key and raise error.
For hmp, invalid key is checked in hmp_send_key().

'send-key' of QMP doesn't support key in hexadecimal format.

Signed-off-by: Amos Kong <akong@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-09-05 15:48:57 -03:00
Amos Kong 1048c88f03 monitor: move key_defs[] table and introduce two help functions
This patch added two help functions to convert key/code to index of
mapping table, those functions will return Q_KEY_CODE_MAX if the
code/key is invalid.

Patch also moved key_defs[] to input.c, and removed useless KeyDef struct.
Key's index in QKeyCode enmu is same as keycode's index in new key_defs[].
Monitor functions were changed to access key_defs[] directly.

key_defs[] is used in do_send_key(), so export key_defs[]. It will be
changed to static in next patch.

Signed-off-by: Amos Kong <akong@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-09-05 15:48:56 -03:00
Amos Kong 2ef20c15b4 hmp: rename arguments
Rename 'string' to 'keys', rename 'hold_time' to 'hold-time'.

Signed-off-by: Amos Kong <akong@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-09-05 15:48:56 -03:00
Amos Kong cd383492bf monitor: rename keyname '<' to 'less'
There are many maps of keycode 0x56 in pc-bios/keymaps/*
  pc-bios/keymaps/common:less 0x56
  pc-bios/keymaps/common:greater 0x56 shift
  pc-bios/keymaps/common:bar 0x56 altgr
  pc-bios/keymaps/common:brokenbar 0x56 shift altgr

This patch just renamed '<' to 'less', QAPI might add new
variable by adding a prefix to keyname, '$PREFIX_<' is not
available, '$PREFIX_less' is ok.

For compatibility, convert user inputted '<' to 'less'.

Signed-off-by: Amos Kong <akong@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-09-05 15:48:56 -03:00
Yonit Halperin 2fdd16e239 spice migration: add QEVENT_SPICE_MIGRATE_COMPLETED
When migrating, libvirt queries the migration status, and upon migration
completions, it closes the migration src. On the other hand, when
migration is completed, spice transfers data from the src to destination
via the client. This data is required for keeping the spice session
after migration, without suffering from data loss and inconsistencies.
In order to allow this data transfer, we add QEVENT for signaling
libvirt that spice migration has completed, and libvirt needs to wait
for this event before quitting the src process.

Signed-off-by: Yonit Halperin <yhalperi@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-09-05 17:11:55 +02:00
Anthony Liguori 26efaca377 monitor: don't try to initialize json parser when monitor is HMP
Reported-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-08-23 20:19:59 -05:00
Anthony Liguori 58617a795c monitor: move json init from OPEN event to init
At some point in the past, the OPEN event was changed to be issued from a
bottom half.  This creates a small window whereas a data callback registered in
init may be invoked before the OPEN event has been issued.

This is reproducible with:

 echo "{'execute': 'qmp_capabilities'}" | qemu-system-x86_64 -M none -qmp stdio

We can fix this for the monitor by moving the parser initialization to init.

The remaining state that is set in OPEN appears harmless.

Reported-by: Daniel Berrange <berrange@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-08-23 08:03:21 -05:00
Blue Swirl b2dc64c391 monitor: avoid declaring unused variables
Some variables are only used on !win32, declare
them only when used.

This avoids a warning in mingw32 build:
  CC    i386-softmmu/monitor.o
/src/qemu/monitor.c: In function 'monitor_fdset_get_fd':
/src/qemu/monitor.c:2575: warning: unused variable 'mon_fd_flags'
/src/qemu/monitor.c:2574: warning: unused variable 'mon_fdset_fd'
/src/qemu/monitor.c:2573: warning: unused variable 'mon_fdset'

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-08-20 14:42:49 -03:00
Corey Bryant efb87c1697 monitor: Clean up fd sets on monitor disconnect
Fd sets are shared by all monitor connections.  Fd sets are considered
to be in use while at least one monitor is connected.  When the last
monitor disconnects, all fds that are members of an fd set with no
outstanding dup references are closed.  This prevents any fd leakage
associated with a client disconnect prior to using a passed fd.

Signed-off-by: Corey Bryant <coreyb@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-08-15 13:16:22 +02:00
Corey Bryant adb696f3d8 block: Enable qemu_open/close to work with fd sets
When qemu_open is passed a filename of the "/dev/fdset/nnn"
format (where nnn is the fdset ID), an fd with matching access
mode flags will be searched for within the specified monitor
fd set.  If the fd is found, a dup of the fd will be returned
from qemu_open.

Signed-off-by: Corey Bryant <coreyb@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-08-15 13:16:22 +02:00
Corey Bryant ba1c048a8f qapi: Introduce add-fd, remove-fd, query-fdsets
This patch adds support that enables passing of file descriptors
to the QEMU monitor where they will be stored in specified file
descriptor sets.

A file descriptor set can be used by a client like libvirt to
store file descriptors for the same file.  This allows the
client to open a file with different access modes (O_RDWR,
O_WRONLY, O_RDONLY) and add/remove the passed fds to/from an fd
set as needed.  This will allow QEMU to (in a later patch in this
series) "open" and "reopen" the same file by dup()ing the fd in
the fd set that corresponds to the file, where the fd has the
matching access mode flag that QEMU requests.

The new QMP commands are:
  add-fd: Add a file descriptor to an fd set
  remove-fd: Remove a file descriptor from an fd set
  query-fdsets: Return information describing all fd sets

Note: These commands are not compatible with the existing getfd
and closefd QMP commands.

Signed-off-by: Corey Bryant <coreyb@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-08-15 10:48:57 +02:00
Anthony Liguori 633decd711 Merge remote-tracking branch 'qmp/queue/qmp' into staging
* qmp/queue/qmp: (48 commits)
  target-ppc: add implementation of query-cpu-definitions (v2)
  target-i386: add implementation of query-cpu-definitions (v2)
  qapi: add query-cpu-definitions command (v2)
  compiler: add macro for GCC weak symbols
  qapi: add query-machines command
  qapi: mark QOM commands stable
  qmp: introduce device-list-properties command
  qmp: add SUSPEND_DISK event
  qmp: qmp-events.txt: add missing doc for the SUSPEND event
  qmp: qmp-events.txt: put events in alphabetical order
  qmp: emit the WAKEUP event when the guest is put to run
  qmp: don't emit the RESET event on wakeup from S3
  scripts: qapi-commands.py: qmp-commands.h: include qdict.h
  docs: writing-qmp-commands.txt: update error section
  error, qerror: drop QDict member
  qerror: drop qerror_table and qerror_format()
  error, qerror: pass desc string to error calls
  error: drop error_get_qobject()/error_set_qobject()
  qemu-ga: switch to the new error format on the wire
  qmp: switch to the new error format on the wire
  ...
2012-08-13 16:12:35 -05:00
Luiz Capitulino 25df49f6eb qmp: add SUSPEND_DISK event
Emitted when the guest makes a request to enter S4 state.

There are three possible ways of having this event, as described here:

 http://lists.gnu.org/archive/html/qemu-devel/2012-07/msg02307.html

I've decided to add a new event and make it indepedent of SHUTDOWN.
This means that the SHUTDOWN event will eventually follow the
SUSPEND_DISK event.

I've choosen this way because of two reasons:

 1. Having an indepedent event makes it possible to query for its
    existence by using query-events

 2. In the future, we may allow the user to change what QEMU should
    do as a result of the guest entering S4. So it's a good idea to
    keep both events separated

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-08-13 16:10:18 -03:00
Luiz Capitulino de253f1491 qmp: switch to the new error format on the wire
IMPORTANT: this BREAKS QMP's compatibility for the error response.

This commit changes QMP's wire protocol to make use of the simpler
error format introduced by previous commits.

There are two important (and mostly incompatible) changes:

 1. Almost all error classes have been replaced by GenericError. The
    only classes that are still supported for compatibility with
    libvirt are: CommandNotFound, DeviceNotActive, KVMMissingCap,
    DeviceNotFound and MigrationExpected

 2. The 'data' field of the error dictionary is gone

As an example, an error response like:

  { "error": { "class": "DeviceNotRemovable",
               "data": { "device": "virtio0" },
               "desc": "Device 'virtio0' is not removable" } }

Will now be emitted as:

  { "error": { "class": "GenericError",
               "desc": "Device 'virtio0' is not removable" } }

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
2012-08-13 14:17:53 -03:00
Luiz Capitulino 74ee59a825 monitor: drop unused monitor debug code
In the old QMP days, this code was used to find out QMP commands that
might be calling monitor_printf() down its call chain.

This is almost impossible to happen today, because the qapi converted
commands don't even have a monitor object. Besides, it's been more than
a year since I used this last time.

Let's just drop it.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
2012-08-13 13:19:14 -03:00
Orit Wasserman 9e1ba4cc4e Add migrate_set_cache_size command
Change XBZRLE cache size in bytes (the size should be a power of 2, it will be
rounded down to the nearest power of 2).
If XBZRLE cache size is too small there will be many cache miss.

New query-migrate-cache-size QMP command and 'info migrate_cache_size' HMP
command to query cache value.

Signed-off-by: Benoit Hudzia <benoit.hudzia@sap.com>
Signed-off-by: Petter Svard <petters@cs.umu.se>
Signed-off-by: Aidan Shribman <aidan.shribman@sap.com>
Signed-off-by: Orit Wasserman <owasserm@redhat.com>

Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2012-08-08 13:51:12 +02:00
Orit Wasserman bbf6da32b5 Add migration capabilities
The management can query the current migration capabilities using
query-migrate-capabilities QMP command.
The user can use 'info migrate_capabilities' HMP command.
Currently only XBZRLE capability is available.

Signed-off-by: Orit Wasserman <owasserm@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>

Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2012-08-08 13:51:11 +02:00
Harsh Prateek Bora 88affa1c77 monitor: remove unused do_info_trace
Going forward with simpletrace v2 variable size trace records, we cannot
have a generic function to print trace event info and therefore this
interface becomes invalid.

As per Stefan Hajnoczi:

"This command is only available from the human monitor.  It's not very
useful because it historically hasn't been able to pretty-print events
or show them in the right order (we use a ringbuffer but it prints
them out from index 0).

Therefore, I don't think we're under any obligation to keep this
command around.  No one has complained about it's limitations - I
think this is a sign that no one has used it.  I'd be okay with a
patch that removes it."

Ref: http://lists.gnu.org/archive/html/qemu-devel/2012-01/msg01268.html

Signed-off-by: Harsh Prateek Bora <harsh@linux.vnet.ibm.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2012-07-19 11:34:32 +01:00
Anthony Liguori 513e6bde4f Merge remote-tracking branch 'qmp/queue/qmp' into staging
* qmp/queue/qmp:
  qapi: Convert getfd and closefd
  qapi: input_type_enum(): fix error message
  qmp: dump-guest-memory: improve schema doc
2012-07-18 14:44:37 -05:00
Peter Maydell 66f27e63ae monitor: Use TARGET_PRI*PHYS to avoid TARGET_PHYS_ADDR_BITS ifdef
Now we have TARGET_PRI*PHYS for printing target_phys_addr_t values,
we can use them in monitor.c rather than having duplicate code
in two arms of a TARGET_PHYS_ADDR_BITS ifdef.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-07-14 10:37:42 +00:00
Corey Bryant 208c9d1b7c qapi: Convert getfd and closefd
Signed-off-by: Corey Bryant <coreyb@linux.vnet.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-07-13 13:46:55 -03:00
Daniel P. Berrange afeecec2e8 Add rate limiting of RTC_CHANGE, BALLOON_CHANGE & WATCHDOG events
Allow certain event types to be rate limited to avoid flooding
monitor clients. The monitor_protocol_event() method is changed
such that instead of immediately emitting the event to Monitor
instances, it will call a new monitor_protocol_event_queue()
method.

This will check to see if the rate limit for the event has been
exceeded, and if so schedule a timer to wakeup at the end of the
rate limit period. If further events arrive before the timer fires,
the previously queued event will be discarded in favour of the new
event. The event will eventually be emitted when the timer fires.

This logic is applied to RTC_CHANGE, BALLOON_CHANGE & WATCHDOG
events, since the data associated with these events is stateless

 * monitor.c: Add support for rate limiting
 * monitor.h: Define monitor_global_init for one-time setup tasks
 * vl.c: Invoke monitor_global_init
 * trace-events: Add hooks for monitor event tracing

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Acked-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-06-15 13:35:00 -03:00
Daniel P. Berrange 973603a813 Add event notification for guest balloon changes
After setting a balloon target value, applications have to
continually poll 'query-balloon' to determine whether the
guest has reacted to this request. The virtio-balloon backend
knows exactly when the guest has reacted though, and thus it
is possible to emit a JSON event to tell the mgmt application
whenever the guest balloon changes.

This introduces a new 'qemu_balloon_changed()' API which is
to be called by balloon driver backends, whenever they have
a change in balloon value. This takes the 'actual' balloon
value, as would be found in the BalloonInfo struct.

The qemu_balloon_change API emits a JSON monitor event which
looks like:

  {"timestamp": {"seconds": 1337162462, "microseconds": 814521},
   "event": "BALLOON_CHANGE", "data": {"actual": 944766976}}

* balloon.c, balloon.h: Introduce qemu_balloon_changed() for
  emitting balloon change events on the monitor
* hw/virtio-balloon.c: Invoke qemu_balloon_changed() whenever
  the guest changes the balloon actual value
* monitor.c, monitor.h: Define QEVENT_BALLOON_CHANGE

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Acked-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-06-15 13:34:50 -03:00
Daniel P. Berrange 4860853d60 Add 'query-events' command to QMP to query async events
Sometimes it is neccessary for an application to determine
whether a particular QMP event is available, so they can
decide whether to use compatibility code instead. This
introduces a new 'query-events' command to QMP to do just
that

 { "execute": "query-events" }
 {"return": [{"name": "WAKEUP"},
             {"name": "SUSPEND"},
             {"name": "DEVICE_TRAY_MOVED"},
             {"name": "BLOCK_JOB_CANCELLED"},
             {"name": "BLOCK_JOB_COMPLETED"},
             ...snip...
             {"name": "SHUTDOWN"}]}

* monitor.c: Turn MonitorEvent -> string conversion
  into a lookup from a static table of constant strings.
  Add impl of qmp_query_events monitor command handler
* qapi-schema.json, qmp-commands.hx: Define contract of
  query-events command

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-06-04 13:49:35 -03:00
Luiz Capitulino 911628498c hmp: fix bad value conversion for M type
The M type converts from megabytes to bytes. However, the value can be
negative before the conversion, which will lead to a flawed conversion.

For example, this:

 (qemu) balloon -1000000000000011
 (qemu)

Just "works", but the value passed by the balloon command will be
something else.

This patch fixes this problem by requering a positive value before
converting. There's really no reason to accept a negative value for
the M type.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2012-05-08 14:30:22 -03:00
Luiz Capitulino 6b0e33be88 hmp: expr_unary(): check for overflow in strtoul()/strtoull()
It's not checked currently, so something like:

  (qemu) balloon -100000000000001111114334234
  (qemu)

Will just "work" (in this case the balloon command will get a random
value).

Fix it by checking if strtoul()/strtoull() overflowed.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2012-05-08 14:30:22 -03:00
Paolo Bonzini b9f8978cc4 qmp: add and use q type specifier
"O" is being used by the transaction and qom-set commands to mean "any
QObject", but it really means "do not validate the argument list".
Add a new specifier with the correct meaning.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-03-27 09:15:28 -03:00
Anthony Liguori b85a4ec8a7 Merge remote-tracking branch 'stefanha/trivial-patches' into staging
* stefanha/trivial-patches:
  qemu-ga: for w32, fix leaked handle ov.hEvent in ga_channel_write()
  ioapic: fix build with DEBUG_IOAPIC
  .gitignore: add qemu-bridge-helper and option rom build products
  cleanup obsolete typedef
  monitor: Remove unused bool field 'qapi' in mon_cmd_t struct
  ds1338: Add missing break statement
  vnc: Fix packed boolean struct members
  Remove type field in ModuleEntry as it's not used
2012-03-19 13:37:41 -05:00
Yonit Halperin 6ec5dae5a4 monitor: fix client_migrate_info error handling
Report QERR_MISSING_PARAMETER when port is missing. Otherwise
QERR_UNDEFINED_ERROR will occur.

rhbz #795652

Signed-off-by: Yonit Halperin <yhalperi@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-03-19 13:12:19 +01:00
Jeff Cody c07c163e0e monitor: Remove unused bool field 'qapi' in mon_cmd_t struct
Some minor code cleanup: the 'qapi' bool field in mon_cmd_t is
unused, and can be removed.

Signed-off-by: Jeff Cody <jcody@redhat.com>
Acked-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2012-03-19 10:52:52 +00:00
Andreas Färber 9349b4f9fd Rename CPUState -> CPUArchState
Scripted conversion:
  for file in *.[hc] hw/*.[hc] hw/kvm/*.[hc] linux-user/*.[hc] linux-user/m68k/*.[hc] bsd-user/*.[hc] darwin-user/*.[hc] tcg/*/*.[hc] target-*/cpu.h; do
    sed -i "s/CPUState/CPUArchState/g" $file
  done

All occurrences of CPUArchState are expected to be replaced by QOM CPUState,
once all targets are QOM'ified and common fields have been extracted.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2012-03-14 22:20:27 +01:00
Andreas Färber e59d167fe4 monitor: Don't access registers through CPUState
Use CPUX86State etc. instead (hand-converted).

Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2012-03-14 22:20:24 +01:00
Blue Swirl b3e54c689c Merge branch 'xtensa' of git://jcmvbkbc.spb.ru/dumb/qemu-xtensa
* 'xtensa' of git://jcmvbkbc.spb.ru/dumb/qemu-xtensa:
  target-xtensa: add breakpoint tests
  target-xtensa: add DEBUG_SECTION to overlay tool
  target-xtensa: add DBREAK data breakpoints
  exec: let cpu_watchpoint_insert accept larger watchpoints
  exec: fix check_watchpoint exiting cpu_loop
  exec: add missing breaks to the watch_mem_write
  target-xtensa: add ICOUNT SR and debug exception
  target-xtensa: implement instruction breakpoints
  target-xtensa: add DEBUGCAUSE SR and configuration
  target-xtensa: fetch 3rd opcode byte only when needed
  target-xtensa: implement info tlb monitor command
  target-xtensa: define TLB_TEMPLATE for MMU-less cores
2012-03-03 17:53:41 +00:00