Commit Graph

163 Commits

Author SHA1 Message Date
Peter Maydell 13399aad4f Error reporting patches for 2018-10-22
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Merge remote-tracking branch 'remotes/armbru/tags/pull-error-2018-10-22' into staging

Error reporting patches for 2018-10-22

# gpg: Signature made Mon 22 Oct 2018 13:20:23 BST
# gpg:                using RSA key 3870B400EB918653
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>"
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>"
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* remotes/armbru/tags/pull-error-2018-10-22: (40 commits)
  error: Drop bogus "use error_setg() instead" admonitions
  vpc: Fail open on bad header checksum
  block: Clean up bdrv_img_create()'s error reporting
  vl: Simplify call of parse_name()
  vl: Fix exit status for -drive format=help
  blockdev: Convert drive_new() to Error
  vl: Assert drive_new() does not fail in default_drive()
  fsdev: Clean up error reporting in qemu_fsdev_add()
  spice: Clean up error reporting in add_channel()
  tpm: Clean up error reporting in tpm_init_tpmdev()
  numa: Clean up error reporting in parse_numa()
  vnc: Clean up error reporting in vnc_init_func()
  ui: Convert vnc_display_init(), init_keyboard_layout() to Error
  ui/keymaps: Fix handling of erroneous include files
  vl: Clean up error reporting in device_init_func()
  vl: Clean up error reporting in parse_fw_cfg()
  vl: Clean up error reporting in mon_init_func()
  vl: Clean up error reporting in machine_set_property()
  vl: Clean up error reporting in chardev_init_func()
  qom: Clean up error reporting in user_creatable_add_opts_foreach()
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-10-23 17:20:23 +01:00
Markus Armbruster d10e05f15d tpm: Clean up error reporting in tpm_init_tpmdev()
Calling error_report() in a function that takes an Error ** argument
is suspicious.  tpm_init_tpmdev() does that, and then fails without
setting an error.  Its caller main(), via tpm_init() and
qemu_opts_foreach(), is fine with it, but clean it up anyway.

Cc: Stefan Berger <stefanb@linux.vnet.ibm.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Message-Id: <20181017082702.5581-30-armbru@redhat.com>
2018-10-19 14:51:34 +02:00
Paolo Bonzini 74c0b816ad replay: pass raw icount value to replay_save_clock
This avoids lock recursion when REPLAY_CLOCK is called inside the
timers spinlock.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-19 13:44:15 +02:00
Gerd Hoffmann 7f623d0834 stubs: add ramfb
Needed to make sure code using ramfb (vfio) compiles properly even on
platforms without fw_cfg (and therefore no ramfb) support.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2018-10-15 10:52:09 -06:00
Emilio G. Cota cb764d0665 qsp: track BQL callers explicitly
The BQL is acquired via qemu_mutex_lock_iothread(), which makes
the profiler assign the associated wait time (i.e. most of
BQL wait time) entirely to that function. This loses the original
call site information, which does not help diagnose BQL contention.
Fix it by tracking the callers explicitly.

Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-08-23 18:46:25 +02:00
Daniel P. Berrangé 977a7204ab tests: don't silence error reporting for all tests
The test-vmstate test is a bit chatty because it triggers various
expected failure scenarios and the code in question uses error_report
instead of accepting 'Error **errp' parameters. To silence this test the
stubs for error_vprintf() were changed to send errors via
g_test_message() instead of stderr:

  commit 28017e010d
  Author: Paolo Bonzini <pbonzini@redhat.com>
  Date:   Mon Oct 24 18:31:03 2016 +0200

    tests: send error_report to test log

    Implement error_vprintf to send the output of error_report to
    the test log.  This silences test-vmstate.

    Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
    Message-Id: <1477326663-67817-3-git-send-email-pbonzini@redhat.com>

Unfortunately this change has global impact across the entire test suite
and means that when tests fail for unexpected reasons, the message is
not displayed on stderr. eg when using &error_abort in a call the test
merely prints

  Unexpected error in qcrypto_tls_session_check_certificate() at crypto/tlssession.c:280:

and the actual error message is hidden, making it impossible to diagnose
the failure. This is especially problematic in CI or build systems where
it isn't possible to easily pass the --debug-log flag to tests and
re-run with the test log visible.

This change makes the previous big hammer much more nuanced, providing a
flag in the stub error_vprintf() that can used on a per-test basis to
silence the errors. Only the test-vmstate silences errors initially.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-07-24 17:35:23 +01:00
Peter Xu 62aa1d887f monitor: Fix unsafe sharing of @cur_mon among threads
@cur_mon is null unless the main thread is running monitor code, either
HMP code within monitor_read(), or QMP code within
monitor_qmp_dispatch().

Use of @cur_mon outside the main thread is therefore unsafe.

Most of its uses are in monitor command handlers.  These run in the main
thread.

However, there are also uses hiding elsewhere, such as in
error_vprintf(), and thus error_report(), making these functions unsafe
outside the main thread.  No such unsafe uses are known at this time.
Regardless, this is an unnecessary trap.  It's an ancient trap, though.

More recently, commit cf869d5317 "qmp: support out-of-band (oob)
execution" spiced things up: the monitor I/O thread assigns to @cur_mon
when executing commands out-of-band.  Having two threads save, set and
restore @cur_mon without synchronization is definitely unsafe.  We can
end up with @cur_mon null while the main thread runs monitor code, or
non-null while it runs non-monitor code.

We could fix this by making the I/O thread not mess with @cur_mon, but
that would leave the trap armed and ready.

Instead, make @cur_mon thread-local.  It's now reliably null unless the
thread is running monitor code.

Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
[peterx: update subject and commit message written by Markus]
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20180720033451.32710-1-peterx@redhat.com>
2018-07-23 14:00:03 +02:00
Nishanth Aravamudan ed6e216171 linux-aio: properly bubble up errors from initialization
laio_init() can fail for a couple of reasons, which will lead to a NULL
pointer dereference in laio_attach_aio_context().

To solve this, add a aio_setup_linux_aio() function which is called
early in raw_open_common. If this fails, propagate the error up. The
signature of aio_get_linux_aio() was not modified, because it seems
preferable to return the actual errno from the possible failing
initialization calls.

Additionally, when the AioContext changes, we need to associate a
LinuxAioState with the new AioContext. Use the bdrv_attach_aio_context
callback and call the new aio_setup_linux_aio(), which will allocate a
new AioContext if needed, and return errors on failures. If it fails for
any reason, fallback to threaded AIO with an error message, as the
device is already in-use by the guest.

Add an assert that aio_get_linux_aio() cannot return NULL.

Signed-off-by: Nishanth Aravamudan <naravamudan@digitalocean.com>
Message-id: 20180622193700.6523-1-naravamudan@digitalocean.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2018-06-27 13:06:34 +01:00
Peter Xu 474514668b monitor: add lock to protect mon_fdsets
Introduce a new global big lock for mon_fdsets.  Take it where needed.

The monitor_fdset_get_fd() handling is a bit tricky: now we need to call
qemu_mutex_unlock() which might pollute errno, so we need to make sure
the correct errno be passed up to the callers.  To make things simpler,
we let monitor_fdset_get_fd() return the -errno directly when error
happens, then in qemu_open() we move it back into errno.

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20180608035511.7439-8-peterx@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2018-06-18 15:48:22 +02:00
David Hildenbrand 2cc0e2e814 pc-dimm: factor out MemoryDevice interface
On the qmp level, we already have the concept of memory devices:
    "query-memory-devices"
Right now, we only support NVDIMM and PCDIMM.

We want to map other devices later into the address space of the guest.
Such device could e.g. be virtio devices. These devices will have a
guest memory range assigned but won't be exposed via e.g. ACPI. We want
to make them look like memory device, but not glued to pc-dimm.

Especially, it will not always be possible to have TYPE_PC_DIMM as a parent
class (e.g. virtio devices). Let's use an interface instead. As a first
part, convert handling of
- qmp_pc_dimm_device_list
- get_plugged_memory_size
to our new model. plug/unplug stuff etc. will follow later.

A memory device will have to provide the following functions:
- get_addr(): Necessary, as the property "addr" can e.g. not be used for
              virtio devices (already defined).
- get_plugged_size(): The amount this device offers to the guest as of
                      now.
- get_region_size(): Because this can later on be bigger than the
                     plugged size.
- fill_device_info(): Fill MemoryDeviceInfo, e.g. for qmp.

Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20180423165126.15441-2-david@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2018-05-07 10:00:02 -03:00
Peter Maydell ed627b2ad3 virtio,vhost,pci,pc: features, cleanups
SRAT tables for DIMM devices
 new virtio net flags for speed/duplex
 post-copy migration support in vhost
 cleanups in pci
 
 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, cleanups

SRAT tables for DIMM devices
new virtio net flags for speed/duplex
post-copy migration support in vhost
cleanups in pci

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

# gpg: Signature made Tue 20 Mar 2018 14:40:43 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: (51 commits)
  postcopy shared docs
  libvhost-user: Claim support for postcopy
  postcopy: Allow shared memory
  vhost: Huge page align and merge
  vhost+postcopy: Wire up POSTCOPY_END notify
  vhost-user: Add VHOST_USER_POSTCOPY_END message
  libvhost-user: mprotect & madvises for postcopy
  vhost+postcopy: Call wakeups
  vhost+postcopy: Add vhost waker
  postcopy: postcopy_notify_shared_wake
  postcopy: helper for waking shared
  vhost+postcopy: Resolve client address
  postcopy-ram: add a stub for postcopy_request_shared_page
  vhost+postcopy: Helper to send requests to source for shared pages
  vhost+postcopy: Stash RAMBlock and offset
  vhost+postcopy: Send address back to qemu
  libvhost-user+postcopy: Register new regions with the ufd
  migration/ram: ramblock_recv_bitmap_test_byte_offset
  postcopy+vhost-user: Split set_mem_table for postcopy
  vhost+postcopy: Transmit 'listen' to slave
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

# Conflicts:
#	scripts/update-linux-headers.sh
2018-03-20 15:48:34 +00:00
Haozhong Zhang 52c95cae4e pc-dimm: make qmp_pc_dimm_device_list() sort devices by address
Make qmp_pc_dimm_device_list() return sorted by start address
list of devices so that it could be reused in places that
would need sorted list*. Reuse existing pc_dimm_built_list()
to get sorted list.

While at it hide recursive callbacks from callers, so that:

  qmp_pc_dimm_device_list(qdev_get_machine(), &list);

could be replaced with simpler:

  list = qmp_pc_dimm_device_list();

* follow up patch will use it in build_srat()

Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au> for ppc part
Reviewed-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2018-03-20 03:34:52 +02:00
Alex Bennée a36544d34c replay: make locking visible outside replay code
The replay_mutex_lock/unlock/locked functions are now going to be used
for ensuring lock-step behaviour between the two threads. Make them
public API functions and also provide stubs for non-QEMU builds on
common paths.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
Message-Id: <20180227095242.1060.16601.stgit@pasha-VirtualBox>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-03-12 16:12:50 +01:00
Peter Xu c8ca2a23a9 vl: export machine_init_done
We have that variable but not exported.  Export that so modules can have
a way to poke on whether machine init has finished.

Meanwhile, set that up even before calling the notifiers, so that
notifiers who may depend on this field will get a correct answer.

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20180306053320.15401-2-peterx@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-03-12 16:12:46 +01:00
Markus Armbruster 112ed241f5 qapi: Empty out qapi-schema.json
The previous commit improved compile time by including less of the
generated QAPI headers.  This is impossible for stuff defined directly
in qapi-schema.json, because that ends up in headers that that pull in
everything.

Move everything but include directives from qapi-schema.json to new
sub-module qapi/misc.json, then include just the "misc" shard where
possible.

It's possible everywhere, except:

* monitor.c needs qmp-command.h to get qmp_init_marshal()

* monitor.c, ui/vnc.c and the generated qapi-event-FOO.c need
  qapi-event.h to get enum QAPIEvent

Perhaps we'll get rid of those some other day.

Adding a type to qapi/migration.json now recompiles some 120 instead
of 2300 out of 5100 objects.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180211093607.27351-25-armbru@redhat.com>
[eblake: rebase to master]
Signed-off-by: Eric Blake <eblake@redhat.com>
2018-03-02 13:45:50 -06:00
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
Markus Armbruster abb297ed44 Include qmp-commands.h exactly where needed
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180201111846.21846-7-armbru@redhat.com>
[OSX breakage fixed]
2018-02-09 13:52:10 +01:00
Markus Armbruster e688df6bc4 Include qapi/error.h exactly where needed
This cleanup makes the number of objects depending on qapi/error.h
drop from 1910 (out of 4743) to 1612 in my "build everything" tree.

While there, separate #include from file comment with a blank line,
and drop a useless comment on why qemu/osdep.h is included first.

Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180201111846.21846-5-armbru@redhat.com>
[Semantic conflict with commit 34e304e975 resolved, OSX breakage fixed]
2018-02-09 13:50:17 +01:00
Fam Zheng a37eaa53f9 stubs: Add stubs for ram block API
These functions will be wanted by block-obj-y but the actual definition
is in obj-y, so stub them to keep the linker happy.

Signed-off-by: Fam Zheng <famz@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20180110091846.10699-2-famz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2018-02-08 09:22:03 +08:00
Philippe Mathieu-Daudé c39f95dc2d tpm: add stubs
Commit c37cacabf2 moved tpm_cleanup() in the main loop exit, however this
function is not available when compiling with --disable-tpm.

Provides necessary stubs to keep code clean of #ifdef'fery.

Reported-by: BALATON Zoltan <balaton@eik.bme.hu>
Message-Id: <20171023102903.256AF7456A0@zero.eik.bme.hu>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Richard W.M. Jones <rjones@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
2017-10-25 01:05:04 -04:00
Vadim Galitsyn 9aa3397f19 qmp: introduce query-memory-size-summary command
Add a new query-memory-size-summary command which provides the
following memory information in bytes:

  * base-memory - size of "base" memory specified with command line option -m.

  * plugged-memory - amount of memory that was hot-plugged.
    If target does not have CONFIG_MEM_HOTPLUG enabled, no
    value is reported.

Signed-off-by: Vasilis Liaskovitis <vasilis.liaskovitis@profitbricks.com>
Signed-off-by: Mohammed Gamal <mohammed.gamal@profitbricks.com>
Signed-off-by: Eduardo Otubo <eduardo.otubo@profitbricks.com>
Signed-off-by: Vadim Galitsyn <vadim.galitsyn@profitbricks.com>
Reviewed-by: Eugene Crosser <evgenii.cherkashin@profitbricks.com>
Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>
Cc: Igor Mammedov <imammedo@redhat.com>
Cc: Eric Blake <eblake@redhat.com>
Cc: qemu-devel@nongnu.org
Message-Id: <20170829153022.27004-3-vadim.galitsyn@profitbricks.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
  Fixup comments as per Igor's review
  Added 'of' from Vadim's reply
2017-09-14 15:52:10 +01:00
Anthony PERARD ab938ae43f hw/acpi: Move acpi_set_pci_info to pcihp
HW part of ACPI PCI hotplug in QEMU depends on ACPI_PCIHP_PROP_BSEL
being set on a PCI bus that supports ACPI hotplug. It should work
regardless of the source of ACPI tables (QEMU generator/legacy SeaBIOS/Xen).
So move ACPI_PCIHP_PROP_BSEL initialization into HW ACPI implementation
part from QEMU's ACPI table generator.

To do PCI passthrough with Xen, the property ACPI_PCIHP_PROP_BSEL needs
to be set, but this was done only when ACPI tables are built which is
not needed for a Xen guest. The need for the property starts with commit
"pc: pcihp: avoid adding ACPI_PCIHP_PROP_BSEL twice"
(f0c9d64a68).

Adding find_i440fx into stubs so that mips-softmmu target can be built.

Reported-by: Sander Eikelenboom <linux@eikelenboom.it>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2017-09-08 16:15:17 +03:00
Fam Zheng 80adf54ecc stubs: Add vm state change handler stubs
They will be used by BlockBackend code in block-obj-y, which doesn't
always get linked with common-obj-y. Add stubs to keep ld happy.

Signed-off-by: Fam Zheng <famz@redhat.com>
Message-Id: <20170815130740.31229-2-famz@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2017-08-15 10:03:27 -05:00
Juan Quintela 1bfe5f0586 migration: Move check_migratable() into qdev.c
The function is only used once, and nothing else in migration knows
about objects.  Create the function vmstate_device_is_migratable() in
savem.c that really do the bit that is related with migration.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
2017-05-17 12:04:59 +02:00
Juan Quintela 795c40b8bd migration: Create migration/blocker.h
This allows us to remove lots of includes of migration/migration.h

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-05-17 12:04:59 +02:00
Anthony Xu 93d43e7e11 move xen-hvm.c to hw/i386/xen/
move xen-hvm.c to hw/i386/xen/

Signed-off -by: Anthony Xu <anthony.xu@intel.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
2017-04-25 11:04:34 -07:00
Anthony Xu 56e2cd2452 move xen-common.c to hw/xen/
move xen-common.c to hw/xen/

Signed-off -by: Anthony Xu <anthony.xu@intel.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
2017-04-25 11:04:34 -07:00
Paolo Bonzini 3f53bc61a4 cpus: define QEMUTimerListNotifyCB for QEMU system emulation
There is no change for now, because the callback just invokes
qemu_notify_event.

Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-03-14 13:28:29 +01:00
Peter Maydell 9a81b792cc virtio, pc: fixes, features
virtio support for region caches broke a bunch of stuff - fixing most of
 it though it's not ideal.  Still pondering the right way to fix it.
 New: VM gen ID and hotplug for PXB.
 
 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, pc: fixes, features

virtio support for region caches broke a bunch of stuff - fixing most of
it though it's not ideal.  Still pondering the right way to fix it.
New: VM gen ID and hotplug for PXB.

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

# gpg: Signature made Thu 02 Mar 2017 06:19:17 GMT
# gpg:                using RSA key 0x281F0DB8D28D5469
# 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:
  hw/pxb-pcie: fix PCI Express hotplug support
  tests/acpi: update DSDT after last patch
  acpi: simplify _OSC
  virtio: unbreak virtio-pci with IOMMU after caching ring translations
  virtio: add missing region cache init in virtio_load()
  virtio: invalidate memory in vring_set_avail_event()
  virtio: guard vring access when setting notification
  virtio: check for vring setup in virtio_queue_empty
  MAINTAINERS: Add VM Generation ID entries
  tests: Move reusable ACPI code into a utility file
  qmp/hmp: add query-vm-generation-id and 'info vm-generation-id' commands
  ACPI: Add Virtual Machine Generation ID support
  ACPI: Add vmgenid blob storage to the build tables
  docs: VM Generation ID device description
  linker-loader: Add new 'write pointer' command

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-03-03 10:09:03 +00:00
Igor Mammedov 39164c136c qmp/hmp: add query-vm-generation-id and 'info vm-generation-id' commands
Add commands to query Virtual Machine Generation ID counter.

QMP command example:
    { "execute": "query-vm-generation-id" }

HMP command example:
    info vm-generation-id

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Ben Warren <ben@skyportsystems.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2017-03-02 07:14:27 +02:00
Ashijeet Acharya 7562f90707 migrate: Introduce a 'dc->vmsd' check to avoid segfault for --only-migratable
Commit a3a3d8c7 introduced a segfault bug while checking for
'dc->vmsd->unmigratable' which caused QEMU to crash when trying to add
devices which do no set their 'dc->vmsd' yet while initialization.
Place a 'dc->vmsd' check prior to it so that we do not segfault for
such devices.

NOTE: This doesn't compromise the functioning of --only-migratable
option as all the unmigratable devices do set their 'dc->vmsd'.

Introduce a new function check_migratable() and move the
only_migratable check inside it, also use stubs to avoid user-mode qemu
build failures.

Signed-off-by: Ashijeet Acharya <ashijeetacharya@gmail.com>
Message-Id: <1487009088-23891-1-git-send-email-ashijeetacharya@gmail.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-02-28 11:30:22 +00:00
Paolo Bonzini c2b38b277a block: move AioContext, QEMUTimer, main-loop to libqemuutil
AioContext is fairly self contained, the only dependency is QEMUTimer but
that in turn doesn't need anything else.  So move them out of block-obj-y
to avoid introducing a dependency from io/ to block-obj-y.

main-loop and its dependency iohandler also need to be moved, because
later in this series io/ will call iohandler_get_aio_context.

[Changed copyright "the QEMU team" to "other QEMU contributors" as
suggested by Daniel Berrange and agreed by Paolo.
--Stefan]

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Message-id: 20170213135235.12274-2-pbonzini@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-02-21 11:14:07 +00:00
Dr. David Alan Gilbert bc5c4f2196 vmstate_register_with_alias_id: Take an Error **
I'll be adding an error to it in a subsequent patch.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20170202125956.21942-2-dgilbert@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2017-02-06 13:36:49 +01:00
Marc-André Lureau 0ec7b3e7f2 char: rename CharDriverState Chardev
Pick a uniform chardev type name.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-01-27 18:07:59 +01:00
Ashijeet Acharya fe44dc9180 migration: disallow migrate_add_blocker during migration
If a migration is already in progress and somebody attempts
to add a migration blocker, this should rightly fail.

Add an errp parameter and a retcode return value to migrate_add_blocker.

Signed-off-by: John Snow <jsnow@redhat.com>
Signed-off-by: Ashijeet Acharya <ashijeetacharya@gmail.com>
Message-Id: <1484566314-3987-5-git-send-email-ashijeetacharya@gmail.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Acked-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
  Merged with recent 'Allow invtsc migration' change
2017-01-24 18:00:30 +00:00
Igor Mammedov 80e5db303d machine: Make possible_cpu_arch_ids() return const pointer
make sure that external callers won't try to modify
possible_cpus and owner of possible_cpus can access
it directly when it modifies it.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <1484759609-264075-5-git-send-email-imammedo@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2017-01-23 21:25:37 -02:00
Paolo Bonzini d525ffabab stubs: remove stubs/kvm.c
This has a single function, just move it to the other target/*/kvm.c files.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-01-16 17:52:35 +01:00
Paolo Bonzini a15215f3e1 build: remove --enable-colo/--disable-colo
No need to provide this knob, so remove it and stubs/migration-colo.c.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-01-16 17:52:35 +01:00
Paolo Bonzini d6da1e9eca event_notifier: cleanups around event_notifier_set_handler
Remove the useless is_external argument.  Since the iohandler
AioContext is never used for block devices, aio_disable_external
is never called on it.  This lets us remove stubs/iohandler.c.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-01-16 17:52:35 +01:00
Paolo Bonzini a0f80010b3 stubs: move vhost stubs to stubs/vhost.o
No need to include them in libqemustub.a, since only system emulators
need them.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-01-16 17:52:35 +01:00
Paolo Bonzini 858d436665 stubs: group all monitor_fdset_* functions in a single file
It makes little sense to implement only one of them, so avoid
proliferation of stubs files.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-01-16 17:52:35 +01:00
Paolo Bonzini 5564edb19e stubs: group stubs for user-mode emulation
Some stubs are used for user-mode emulation only; they are not
needed by tools.  Move them out of stubs/.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-01-16 17:52:35 +01:00
Paolo Bonzini 2f7b92a03f hw: move reset handlers from vl.c to hw/core
They are small, it is not worth stubbing them.  Just include them
in user-mode emulators and unit tests as well.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-01-16 17:52:35 +01:00
Paolo Bonzini 671ab4368a stubs: remove unused stub for serial_hd
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-01-16 17:52:35 +01:00
Paolo Bonzini 6a997d3b76 stubs: move acpi stubs to hw/acpi
No need to include them in libqemustub.a, since only system emulators
need them.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-01-16 17:52:35 +01:00
Paolo Bonzini cc7a73604a stubs: move smbios stubs to hw/smbios
No need to include them in libqemustub.a, since only system emulators
need them.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-01-16 17:52:35 +01:00
Paolo Bonzini 869e9aecbe stubs: merge all monitor stubs in one file, remove monitor_cur_is_qmp stub
monitor_cur_is_qmp was previously used by other stubs, but it's not
since 397d30e ("qemu-error: remove dependency of stubs on monitor",
2016-11-01).

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-01-16 17:52:35 +01:00
Stefan Hajnoczi f6a51c84cd aio: add AioPollFn and io_poll() interface
The new AioPollFn io_poll() argument to aio_set_fd_handler() and
aio_set_event_handler() is used in the next patch.

Keep this code change separate due to the number of files it touches.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 20161201192652.9509-3-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-01-03 16:38:48 +00:00
Paolo Bonzini 28017e010d tests: send error_report to test log
Implement error_vprintf to send the output of error_report to
the test log.  This silences test-vmstate.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1477326663-67817-3-git-send-email-pbonzini@redhat.com>
2016-11-01 16:06:57 +01:00
Paolo Bonzini 397d30e940 qemu-error: remove dependency of stubs on monitor
Leave the implementation of error_vprintf and error_vprintf_unless_qmp
(the latter now trivially wrapped by error_printf_unless_qmp) to
libqemustub.a and monitor.c.  This has two advantages: it lets us
remove the monitor_printf and monitor_vprintf stubs, and it lets
tests provide a different implementation of the functions that uses
g_test_message.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1477326663-67817-2-git-send-email-pbonzini@redhat.com>
2016-11-01 16:06:57 +01:00