Commit Graph

445 Commits

Author SHA1 Message Date
Peter Maydell
f1faf2d59c Pull request
v2:
  * Fixed incorrect virtio_blk_data_plane_create() local_err refactoring in
    "hw/block: Use errp directly rather than local_err" that broke virtio-blk
    over virtio-mmio [Peter]
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Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging

Pull request

v2:
 * Fixed incorrect virtio_blk_data_plane_create() local_err refactoring in
   "hw/block: Use errp directly rather than local_err" that broke virtio-blk
   over virtio-mmio [Peter]

# gpg: Signature made Tue 19 Dec 2017 15:08:14 GMT
# 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: (23 commits)
  qemu-iotests: add 203 savevm with IOThreads test
  iothread: fix iothread_stop() race condition
  iotests: add VM.add_object()
  blockdev: add x-blockdev-set-iothread force boolean
  docs: mark nested AioContext locking as a legacy API
  block: avoid recursive AioContext acquire in bdrv_inactivate_all()
  virtio-blk: reject configs with logical block size > physical block size
  virtio-blk: make queue size configurable
  qemu-iotests: add 202 external snapshots IOThread test
  blockdev: add x-blockdev-set-iothread testing command
  iothread: add iothread_by_id() API
  block: drop unused BlockDirtyBitmapState->aio_context field
  block: don't keep AioContext acquired after internal_snapshot_prepare()
  block: don't keep AioContext acquired after blockdev_backup_prepare()
  block: don't keep AioContext acquired after drive_backup_prepare()
  block: don't keep AioContext acquired after external_snapshot_prepare()
  blockdev: hold AioContext for bdrv_unref() in external_snapshot_clean()
  qdev: drop unused #include "sysemu/iothread.h"
  dev-storage: Fix the unusual function name
  hw/block: Use errp directly rather than local_err
  ...

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

# Conflicts:
#	hw/core/qdev-properties-system.c
2017-12-20 11:30:55 +00:00
Cornelia Huck
89be9e99c8 tpm: move qdev_prop_tpm to hw/tpm/
Building with --disable-tpm yields

../hw/core/qdev-properties-system.o: In function `set_tpm':
/home/cohuck/git/qemu/hw/core/qdev-properties-system.c:274: undefined reference to `qemu_find_tpm_be'
/home/cohuck/git/qemu/hw/core/qdev-properties-system.c:278: undefined reference to `tpm_backend_init'
../hw/core/qdev-properties-system.o: In function `release_tpm':
/home/cohuck/git/qemu/hw/core/qdev-properties-system.c:291: undefined reference to `tpm_backend_reset'

Move the implementation of DEFINE_PROP_TPMBE to hw/tpm/ so that it is
only built when tpm is actually configured, and build tpm_util in every
case.

Fixes: 493b783035 ("qdev: add DEFINE_PROP_TPMBE")
Reported-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
2017-12-19 06:40:04 -05:00
Stefan Hajnoczi
a12aef24fa qdev: drop unused #include "sysemu/iothread.h"
Commit 1351d1ec89 ("qdev: drop iothread
property type") forgot to remove this include.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20171205133954.31006-1-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-12-19 10:25:08 +00:00
Philippe Mathieu-Daudé
ff676046fb misc: remove duplicated includes
exec: housekeeping (funny since 02d0e09503)

applied using ./scripts/clean-includes

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-12-18 17:07:02 +03:00
Marc-André Lureau
493b783035 qdev: add DEFINE_PROP_TPMBE
A property to lookup a tpm backend.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
2017-12-14 23:39:15 -05:00
Peter Maydell
a8b392ac9a * TCG 8-byte atomic accesses bugfix (Andrew)
* Report disk rotation rate (Daniel)
 * Report invalid scsi-disk block size configuration (Mark)
 * KVM and memory API MemoryListener fixes (David, Maxime, Peter Xu)
 * x86 CPU hotplug crash fix (Igor)
 * Load/store API documentation (Peter Maydell)
 * Small fixes by myself and Thomas
 * qdev DEVICE_DELETED deferral (Michael)
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* TCG 8-byte atomic accesses bugfix (Andrew)
* Report disk rotation rate (Daniel)
* Report invalid scsi-disk block size configuration (Mark)
* KVM and memory API MemoryListener fixes (David, Maxime, Peter Xu)
* x86 CPU hotplug crash fix (Igor)
* Load/store API documentation (Peter Maydell)
* Small fixes by myself and Thomas
* qdev DEVICE_DELETED deferral (Michael)

# gpg: Signature made Wed 18 Oct 2017 10:56:24 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: (29 commits)
  scsi: reject configurations with logical block size > physical block size
  qdev: defer DEVICE_DEL event until instance_finalize()
  Revert "qdev: Free QemuOpts when the QOM path goes away"
  qdev: store DeviceState's canonical path to use when unparenting
  qemu-pr-helper: use new libmultipath API
  watch_mem_write: implement 8-byte accesses
  notdirty_mem_write: implement 8-byte accesses
  memory: reuse section_from_flat_range()
  kvm: simplify kvm_align_section()
  kvm: region_add and region_del is not called on updates
  kvm: fix error message when failing to unregister slot
  kvm: tolerate non-existing slot for log_start/log_stop/log_sync
  kvm: fix alignment of ram address
  memory: call log_start after region_add
  target/i386: trap on instructions longer than >15 bytes
  target/i386: introduce x86_ld*_code
  tco: add trace events
  docs/devel/loads-stores.rst: Document our various load and store APIs
  nios2: define tcg_env
  build: remove CONFIG_LIBDECNUMBER
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-10-19 15:38:07 +01:00
Michael Roth
f7b879e072 qdev: defer DEVICE_DEL event until instance_finalize()
DEVICE_DEL is currently emitted when a Device is unparented, as
opposed to when it is finalized. The main design motivation for this
seems to be that after unparent()/unrealize(), the Device is no
longer visible to the guest, and thus the operation is complete
from the perspective of management.

However, there are cases where remaining host-side cleanup is also
pertinent to management. The is generally handled by treating these
resources as aspects of the "backend", which can be managed via
separate interfaces/events, such as blockdev_add/del, netdev_add/del,
object_add/del, etc, but some devices do not have this level of
compartmentalization, namely vfio-pci, and possibly to lend themselves
well to it.

In the case of vfio-pci, the "backend" cleanup happens as part of
the finalization of the vfio-pci device itself, in particular the
cleanup of the VFIO group FD. Failing to wait for this cleanup can
result in tools like libvirt attempting to rebind the device to
the host while it's still being used by VFIO, which can result in
host crashes or other misbehavior depending on the host driver.

Deferring DEVICE_DEL still affords us the ability to manage backends
explicitly, while also addressing cases like vfio-pci's, so we
implement that approach here.

An alternative proposal involving having VFIO emit a separate event
to denote completion of host-side cleanup was discussed, but the
prevailing opinion seems to be that it is not worth the added
complexity, and leaves the issue open for other Device implementations
to solve in the future.

Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Tested-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20171016222315.407-4-mdroth@linux.vnet.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-10-18 10:34:50 +02:00
Michael Roth
2fc06c4ac6 Revert "qdev: Free QemuOpts when the QOM path goes away"
This reverts commit abed886ec6.

This patch originally addressed an issue where a DEVICE_DELETED
event could be emitted (in device_unparent()) before a Device's
QemuOpts were cleaned up (in device_finalize()), leading to a
"duplicate ID" error if management attempted to immediately add
a device with the same ID in response to the DEVICE_DELETED event.

An alternative will be implemented in a subsequent patch where we
defer the DEVICE_DELETED event until device_finalize(), which would
also prevent the race, so we revert the original fix in preparation.

Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Tested-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20171016222315.407-3-mdroth@linux.vnet.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-10-18 10:34:50 +02:00
Michael Roth
04162f8f4b qdev: store DeviceState's canonical path to use when unparenting
device_unparent(dev, ...) is called when a device is unparented,
either directly, or as a result of a parent device being
finalized, and handles some final cleanup for the device. Part
of this includes emiting a DEVICE_DELETED QMP event to notify
management, which includes the device's path in the composition
tree as provided by object_get_canonical_path().

object_get_canonical_path() assumes the device is still connected
to the machine/root container, and will assert otherwise, but
in some situations this isn't the case:

If the parent is finalized as a result of object_unparent(), it
will still be attached to the composition tree at the time any
children are unparented as a result of that same call to
object_unparent(). However, in some cases, object_unparent()
will complete without finalizing the parent device, due to
lingering references that won't be released till some time later.
One such example is if the parent has MemoryRegion children (which
take a ref on their parent), who in turn have AddressSpace's (which
take a ref on their regions), since those AddressSpaces get cleaned
up asynchronously by the RCU thread.

In this case qdev:device_unparent() may be called for a child Device
that no longer has a path to the root/machine container, causing
object_get_canonical_path() to assert.

Fix this by storing the canonical path during realize() so the
information will still be available for device_unparent() in such
cases.

Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20171016222315.407-2-mdroth@linux.vnet.ibm.com>
[Clear dev->canonical_path at the post_realize_fail label, which is
 cleaner.  Suggested by David Gibson. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-10-18 10:34:17 +02:00
Marc-André Lureau
5f9252f7cc fw_cfg: add write callback
Reintroduce the write callback that was removed when write support was
removed in commit 023e314856.

Contrary to the previous callback implementation, the write_cb
callback is called whenever a write happened, so handlers must be
ready to handle partial write as necessary.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2017-10-15 05:54:40 +03:00
Alistair Francis
c9cf636d48 machine: Add a valid_cpu_types property
This patch add a MachineClass element that can be set in the machine C
code to specify a list of supported CPU types. If the supported CPU
types are specified the user enter CPU (by -cpu at runtime) is checked
against the supported types and QEMU exits if they aren't supported.

Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Message-Id: <b8474e9d2e0a219d9bac901342f983b13d009301.1507059418.git.alistair.francis@xilinx.com>
[ehabkost: removed assert(), rewrote comment]
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2017-10-09 23:21:52 -03:00
Igor Mammedov
79e0793614 numa: cpu: calculate/set default node-ids after all -numa CLI options are parsed
Calculating default node-ids for CPUs in possible_cpu_arch_ids()
is rather fragile since defaults calculation uses nb_numa_nodes but
callback might be potentially called early before all -numa CLI
options are parsed, which would lead to cpus assigned only upto
nb_numa_nodes at the time possible_cpu_arch_ids() is called.

Issue was introduced by
(7c88e65 numa: mirror cpu to node mapping in MachineState::possible_cpus)
and for example CLI:
  -smp 4 -numa node,cpus=0 -numa node
would set props.node-id in possible_cpus array for every non
explicitly mapped CPU to the first node.

Issue is not visible to guest nor to mgmt interface due to
  1) implictly mapped cpus are forced to the first node in
     case of partial mapping
  2) in case of default mapping possible_cpu_arch_ids() is
     called after all -numa options are parsed (resulting
     in correct mapping).

However it's fragile to rely on late execution of
possible_cpu_arch_ids(), therefore add machine specific
callback that returns node-id for CPU and use it to calculate/
set defaults at machine_numa_finish_init() time when all -numa
options are parsed.

Reported-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <1496314408-163972-1-git-send-email-imammedo@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2017-09-19 16:51:33 -03:00
Marc-André Lureau
6f6f4aec74 fw_cfg: rename read callback
The callback is called on select.

Furthermore, the next patch introduced a new callback, so rename the
function type with a generic name.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.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
Marc-André Lureau
f7abe0ecd4 qapi: Change data type of the FOO_lookup generated for enum FOO
Currently, a FOO_lookup is an array of strings terminated by a NULL
sentinel.

A future patch will generate enums with "holes".  NULL-termination
will cease to work then.

To prepare for that, store the length in the FOO_lookup by wrapping it
in a struct and adding a member for the length.

The sentinel will be dropped next.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20170822132255.23945-13-marcandre.lureau@redhat.com>
[Basically redone]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1503564371-26090-16-git-send-email-armbru@redhat.com>
[Rebased]
2017-09-04 13:09:13 +02:00
Markus Armbruster
788b305c91 qapi: Convert indirect uses of FOO_lookup[...] to qapi_enum_lookup()
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1503564371-26090-15-git-send-email-armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2017-09-04 13:09:13 +02:00
Philippe Mathieu-Daudé
2a4e2e4919 loader: check get_image_size() return value
since a negative value means it errored.

hw/core/loader.c:149:9: warning: Loss of sign in implicit conversion
    if (size > max_sz) {
        ^~~~
hw/core/loader.c:171:9: warning: Loss of sign in implicit conversion
    if (size > memory_region_size(mr)) {
        ^~~~

Reported-by: Clang Static Analyzer
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-07-31 13:06:38 +03:00
Alexey Kardashevskiy
665df9010a Revert "elf-loader: warn about invalid endianness"
This reverts c8e1158cf6 "elf-loader: warn about invalid endianness"
as it produces a useless message every time an LE kernel image is
passed via -kernel on a ppc64-pseries machine. The pseries machine
already checks for ELF_LOAD_WRONG_ENDIAN and tries with big_endian=0.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
2017-07-28 13:32:32 +01:00
Peter Maydell
988879b66e migration/next for 20170718
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Merge remote-tracking branch 'remotes/juanquintela/tags/migration/20170718' into staging

migration/next for 20170718

# gpg: Signature made Tue 18 Jul 2017 16:39:33 BST
# gpg:                using RSA key 0xF487EF185872D723
# gpg: Good signature from "Juan Quintela <quintela@redhat.com>"
# gpg:                 aka "Juan Quintela <quintela@trasno.org>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 1899 FF8E DEBF 58CC EE03  4B82 F487 EF18 5872 D723

* remotes/juanquintela/tags/migration/20170718:
  migration: check global caps for validity
  migration: provide migrate_cap_add()
  migration: provide migrate_caps_check()
  migration: remove check against colo support
  migration: check global params for validity
  migration: provide migrate_params_apply()
  migration: introduce migrate_params_check()
  migration: export capabilities to props
  migration: export parameters to props
  qdev: provide DEFINE_PROP_INT64()
  migration/rdma: Send error during cancelling
  migration/rdma: Safely convert control types
  migration/rdma: Allow cancelling while waiting for wrid
  migration/rdma: fix qemu_rdma_block_for_wrid error paths
  migration: Close file on failed migration load
  migration/rdma: Fix race on source

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-07-19 12:30:41 +01:00
Peter Xu
07d1d063d3 qdev: provide DEFINE_PROP_INT64()
We have nearly all the stuff, but this one is missing. Add it in.

Am going to use this new helper for MigrationParameters fields, since
most of them are int64_t.

CC: Markus Armbruster <armbru@redhat.com>
CC: Eduardo Habkost <ehabkost@redhat.com>
CC: Marc-André Lureau <marcandre.lureau@redhat.com>
CC: Peter Xu <peterx@redhat.com>
CC: Juan Quintela <quintela@redhat.com>
CC: Marcel Apfelbaum <marcel@redhat.com>
CC: Eric Blake <eblake@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <1500349150-13240-2-git-send-email-peterx@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2017-07-18 17:36:19 +02:00
Peter Maydell
368e708b4c x86 and machine queue, 2017-07-17
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Merge remote-tracking branch 'remotes/ehabkost/tags/x86-and-machine-pull-request' into staging

x86 and machine queue, 2017-07-17

# gpg: Signature made Mon 17 Jul 2017 19:46:14 BST
# gpg:                using RSA key 0x2807936F984DC5A6
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>"
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF  D1AA 2807 936F 984D C5A6

* remotes/ehabkost/tags/x86-and-machine-pull-request:
  qmp: Include parent type on 'qom-list-types' output
  qmp: Include 'abstract' field on 'qom-list-types' output
  tests: Simplify abstract-interfaces check with a helper
  i386: add Skylake-Server cpu model
  i386: Update comment about XSAVES on Skylake-Client
  i386: expose "TCGTCGTCGTCG" in the 0x40000000 CPUID leaf
  fw_cfg: move QOM type defines and fw_cfg types into fw_cfg.h
  fw_cfg: move qdev_init_nofail() from fw_cfg_init1() to callers
  fw_cfg: switch fw_cfg_find() to locate the fw_cfg device by type rather than path
  qom: Fix ambiguous path detection when ambiguous=NULL
  Revert "machine: Convert abstract typename on compat_props to subclass names"
  test-qdev-global-props: Test global property ordering
  qdev: fix the order compat and global properties are applied
  tests: Test case for object_resolve_path*()
  device-crash-test: Fix regexp on whitelist

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-07-18 15:24:11 +01:00
Eduardo Habkost
6d1e30c4ac Revert "machine: Convert abstract typename on compat_props to subclass names"
This reverts commit 0bcba41fe3.

The bug addressed by that commit is now fixed in a better way by the
commit "qdev: fix the order compat and global properties are applied".

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20170711004303.3902-4-ehabkost@redhat.com>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2017-07-17 15:41:30 -03:00
Greg Kurz
5eb6a3c501 qdev: fix the order compat and global properties are applied
The current code recursively applies global properties from child up to
parent types. This can cause properties passed with the -global option to
be silently overridden by internal compat properties.

This is exactly what happened with virtio-*-pci drivers since commit:

"9a4c0e220d8a hw/virtio-pci: fix virtio behaviour"

Passing -device virtio-blk-pci.disable-modern=off had no effect on 2.6
machine types because the internal virtio-pci.disable-modern=on compat
property always prevailed.

A workaround for this was included with commit 0bcba41f ("machine:
Convert abstract typename on compat_props to subclass names").

This patch fixes the issue properly by reversing the logic: we now go
through the global property list and, for each property, we check if it
is applicable to the device.

This results in compat properties being applied first, in the order they
appear in the HW_COMPAT_* macros, followed by global properties, in the
order they appear on the command line.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <148103887228.22326.478406873609299999.stgit@bahia.lab.toulouse-stg.fr.ibm.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20170711004303.3902-2-ehabkost@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2017-07-17 15:41:29 -03:00
Peter Maydell
5cc56cc687 qdev: support properties which don't set a default value
In some situations it's useful to have a qdev property which doesn't
automatically set its default value when qdev_property_add_static is
called (for instance when the default value is not constant).

Support this by adding a flag to the Property struct indicating
whether to set the default value.  This replaces the existing test
for whether the PropertyInfo set_default_value function pointer is
NULL, and we set the .set_default field to true for all those cases
of struct Property which use a PropertyInfo with a non-NULL
set_default_value, so behaviour remains the same as before.

This gives us the semantics of:
 * if .set_default is true, then .info->set_default_value must
   be not NULL, and .defval is used as the the default value of
   the property
 * otherwise, the property system does not set any default, and
   the field will retain whatever initial value it was given by
   the device's .instance_init method

We define two new macros DEFINE_PROP_SIGNED_NODEFAULT and
DEFINE_PROP_UNSIGNED_NODEFAULT, to cover the most plausible use cases
of wanting to set an integer property with no default value.

Suggested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1499788408-10096-3-git-send-email-peter.maydell@linaro.org
2017-07-17 13:36:06 +01:00
Peter Maydell
6c6076662d * gdbstub fixes (Alex)
* IOMMU MemoryRegion subclass (Alexey)
 * Chardev hotswap (Anton)
 * NBD_OPT_GO support (Eric)
 * Misc bugfixes
 * DEFINE_PROP_LINK (minus the ARM patches - Fam)
 * MAINTAINERS updates (Philippe)
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* gdbstub fixes (Alex)
* IOMMU MemoryRegion subclass (Alexey)
* Chardev hotswap (Anton)
* NBD_OPT_GO support (Eric)
* Misc bugfixes
* DEFINE_PROP_LINK (minus the ARM patches - Fam)
* MAINTAINERS updates (Philippe)

# gpg: Signature made Fri 14 Jul 2017 11:06:27 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: (55 commits)
  spapr_rng: Convert to DEFINE_PROP_LINK
  cpu: Convert to DEFINE_PROP_LINK
  mips_cmgcr: Convert to DEFINE_PROP_LINK
  ivshmem: Convert to DEFINE_PROP_LINK
  dimm: Convert to DEFINE_PROP_LINK
  virtio-crypto: Convert to DEFINE_PROP_LINK
  virtio-rng: Convert to DEFINE_PROP_LINK
  virtio-scsi: Convert to DEFINE_PROP_LINK
  virtio-blk: Convert to DEFINE_PROP_LINK
  qdev: Add const qualifier to PropertyInfo definitions
  qmp: Use ObjectProperty.type if present
  qdev: Introduce DEFINE_PROP_LINK
  qdev: Introduce PropertyInfo.create
  qom: enforce readonly nature of link's check callback
  translate-all: remove redundant !tcg_enabled check in dump_exec_info
  vl: fix breakage of -tb-size
  nbd: Implement NBD_INFO_BLOCK_SIZE on client
  nbd: Implement NBD_INFO_BLOCK_SIZE on server
  nbd: Implement NBD_OPT_GO on client
  nbd: Implement NBD_OPT_GO on server
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-07-14 12:16:09 +01:00
Fam Zheng
1b6b7d109e qdev: Add const qualifier to PropertyInfo definitions
The remaining non-const ones are in e1000e which modifies description at
runtime. They can be addressed separatedly.

Signed-off-by: Fam Zheng <famz@redhat.com>
Message-Id: <20170714021509.23681-6-famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-07-14 12:04:42 +02:00
Fam Zheng
5b4ff3c661 qdev: Introduce DEFINE_PROP_LINK
This property can be used to replace the object_property_add_link in
device code, to add a link to other objects, which is a common pattern.

Signed-off-by: Fam Zheng <famz@redhat.com>
Message-Id: <20170714021509.23681-4-famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-07-14 12:04:42 +02:00
Fam Zheng
faabdbb792 qdev: Introduce PropertyInfo.create
This allows property implementation to provide a specialized property
creation method.

Update conditions guarding property types accordingly.

Signed-off-by: Fam Zheng <famz@redhat.com>
Message-Id: <20170714021509.23681-3-famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-07-14 12:04:42 +02:00
Igor Mammedov
8f5d58ef2c qom: enforce readonly nature of link's check callback
link's check callback is supposed to verify/permit setting it,
however currently nothing restricts it from misusing it
and modifying target object from within.
Make sure that readonly semantics are checked by compiler
to prevent callback's misuse.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
Message-Id: <20170714021509.23681-2-famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-07-14 12:04:42 +02:00
Peter Maydell
a309b290aa Error reporting patches for 2017-07-13
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Merge remote-tracking branch 'remotes/armbru/tags/pull-error-2017-07-13' into staging

Error reporting patches for 2017-07-13

# gpg: Signature made Thu 13 Jul 2017 12:55:45 BST
# gpg:                using RSA key 0x3870B400EB918653
# 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-2017-07-13:
  Convert error_report*_err() to warn_report*_err()
  error: Implement the warn and free Error functions
  char-socket: Report TCP socket waiting as information
  Convert error_report() to warn_report()
  error: Functions to report warnings and informational messages
  util/qemu-error: Rename error_print_loc() to be more generic
  websock: Don't try to set *errp directly
  block: Don't try to set *errp directly
  xilinx: Fix latent error handling bug

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-07-14 09:36:40 +01:00
Alistair Francis
88f83f3539 Convert error_report*_err() to warn_report*_err()
Convert all uses of error_report*_err("Warning:"... to use
warn_report*_err() instead. This helps standardise on a single
method of printing warnings to the user.

Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <d8e088757186955f40f04ec4f4be7f640d3c8660.1499866456.git.alistair.francis@xilinx.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-07-13 13:50:24 +02:00
Alistair Francis
3dc6f86936 Convert error_report() to warn_report()
Convert all uses of error_report("warning:"... to use warn_report()
instead. This helps standardise on a single method of printing warnings
to the user.

All of the warnings were changed using these two commands:
    find ./* -type f -exec sed -i \
      's|error_report(".*warning[,:] |warn_report("|Ig' {} +

Indentation fixed up manually afterwards.

The test-qdev-global-props test case was manually updated to ensure that
this patch passes make check (as the test cases are case sensitive).

Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Suggested-by: Thomas Huth <thuth@redhat.com>
Cc: Jeff Cody <jcody@redhat.com>
Cc: Kevin Wolf <kwolf@redhat.com>
Cc: Max Reitz <mreitz@redhat.com>
Cc: Ronnie Sahlberg <ronniesahlberg@gmail.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Peter Lieven <pl@kamp.de>
Cc: Josh Durgin <jdurgin@redhat.com>
Cc: "Richard W.M. Jones" <rjones@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>
Cc: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Cc: Greg Kurz <groug@kaod.org>
Cc: Rob Herring <robh@kernel.org>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Peter Chubb <peter.chubb@nicta.com.au>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Marcel Apfelbaum <marcel@redhat.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Igor Mammedov <imammedo@redhat.com>
Cc: David Gibson <david@gibson.dropbear.id.au>
Cc: Alexander Graf <agraf@suse.de>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Cornelia Huck <cohuck@redhat.com>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Greg Kurz <groug@kaod.org>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed by: Peter Chubb <peter.chubb@data61.csiro.au>
Acked-by: Max Reitz <mreitz@redhat.com>
Acked-by: Marcel Apfelbaum <marcel@redhat.com>
Message-Id: <e1cfa2cd47087c248dd24caca9c33d9af0c499b0.1499866456.git.alistair.francis@xilinx.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-07-13 13:49:58 +02:00
Philippe Mathieu-Daudé
32fb354b08 hw/core: fix missing return value in load_image_targphys_as()
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-07-11 11:18:37 +03:00
Philippe Mathieu-Daudé
c8e1158cf6 elf-loader: warn about invalid endianness
fprintf(stderr) is how errors are reported in this file.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-07-11 11:18:37 +03:00
Peter Xu
9ffea096b9 accel: introduce AccelClass.global_props
Introduce this new field for the accelerator classes so that each
specific accelerator in the future can register its own global
properties to be used further by the system. It works just like how the
old machine compatible properties do, but only tailored for
accelerators.

Introduce register_compat_props_array() for it. Export it so that it may
be used in other codes as well in the future.

Suggested-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <1498536619-14548-3-git-send-email-peterx@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2017-06-28 11:18:38 +02:00
Peter Xu
60d7cacac8 machine: export register_compat_prop()
We have HW_COMPAT_*, however that's only bound to machines, not other
things (like accelerators).  Behind it, it was register_compat_prop()
that played the trick.  Let's export the function for further use
outside HW_COMPAT_* magic.

Meanwhile, move it to qdev-properties.c where seems more proper (since
it'll be used not only in machine codes).

Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <1498536619-14548-2-git-send-email-peterx@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2017-06-28 11:18:38 +02:00
Marc-André Lureau
6d13643a3a platform-bus: use get_uint() for "addr" property
This is TYPE_MEMORY_REGION's property.  Its getter
memory_region_get_addr() uses visit_type_uint64().

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20170607163635.17635-27-marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-06-20 14:31:32 +02:00
Marc-André Lureau
3fb2111fc9 qdev: avoid type casts between signed and unsigned
Modify the unsigned type for various properties to use QNUM_U64, to
avoid type casts.

There are a few empty lines added to improve code reading/style.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20170607163635.17635-18-marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Change to set_default_value_enum() dropped]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-06-20 14:31:32 +02:00
Marc-André Lureau
76318657a8 qdev: wrap default property value in an union
Wrap the Property default value (an int64_t) in a union, to prepare
for the next patch adding a uint64_t.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20170607163635.17635-17-marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-06-20 14:31:32 +02:00
Marc-André Lureau
a2740ad584 qdev: remove PropertyInfo.qtype field
Remove dependency on qapi qtype, replace a field by a few PropertyInfo
callbacks to set the default value type (introduced in commit 4f2d3d7).

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20170607163635.17635-2-marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-06-19 14:56:29 +02:00
Peter Maydell
a65afaae0f x86 and machine queue, 2017-06-05
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Merge remote-tracking branch 'remotes/ehabkost/tags/x86-and-machine-pull-request' into staging

x86 and machine queue, 2017-06-05

# gpg: Signature made Mon 05 Jun 2017 19:58:01 BST
# gpg:                using RSA key 0x2807936F984DC5A6
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>"
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF  D1AA 2807 936F 984D C5A6

* remotes/ehabkost/tags/x86-and-machine-pull-request:
  scripts: Test script to look for -device crashes
  qemu.py: Add QEMUMachine.exitcode() method
  qemu.py: Don't set _popen=None on error/shutdown
  spapr: cleanup spapr_fixup_cpu_numa_dt() usage
  numa: move numa_node from CPUState into target specific classes
  numa: make hmp 'info numa' fetch numa nodes from qmp_query_cpus() result
  numa: make sure that all cpus have has_node_id set if numa is enabled
  numa: move default mapping init to machine
  numa: consolidate cpu_preplug fixups/checks for pc/arm/spapr
  pc: Use "min-[x]level" on compat_props

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-06-06 10:00:34 +01:00
Igor Mammedov
d41f3e750d numa: make sure that all cpus have has_node_id set if numa is enabled
It fixes/add missing _PXM object for non mapped CPU (x86)
and missing fdt node (virt-arm).

It ensures that possible_cpus contains complete mapping if
numa is enabled by the time machine_init() is executed.

As result non completely mapped CPUs:
 1) appear in ACPI/fdt blobs
 2) QMP query-hotpluggable-cpus command shows bound nodes for such CPUs
 3) allows to drop checks for has_node_id in numa only code,
   reducing number of invariants incomplete mapping could produce
 4) moves fixup/implicit node init from runtime numa_cpu_pre_plug()
   (when CPU object is created) to machine_numa_finish_init() which
   helps to fix [1, 2] and make possible_cpus complete source
   of numa mapping available even before CPUs are created.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <1496161442-96665-4-git-send-email-imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2017-06-05 14:59:08 -03:00
Igor Mammedov
60bed6a30a numa: move default mapping init to machine
there is no need use cpu_index_to_instance_props() for setting
default cpu -> node mapping. Generic machine code can do it
without cpu_index by just enabling already preset defaults
in possible_cpus.

PS:
as bonus it makes one less user of cpu_index_to_instance_props()

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <1496161442-96665-3-git-send-email-imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2017-06-05 14:59:08 -03:00
Peter Maydell
199e19ee53 trivial patches for 2017-06-05
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Merge remote-tracking branch 'remotes/mjt/tags/trivial-patches-fetch' into staging

trivial patches for 2017-06-05

# gpg: Signature made Mon 05 Jun 2017 15:23:46 BST
# gpg:                using RSA key 0x701B4F6B1A693E59
# gpg: Good signature from "Michael Tokarev <mjt@tls.msk.ru>"
# gpg:                 aka "Michael Tokarev <mjt@corpit.ru>"
# gpg:                 aka "Michael Tokarev <mjt@debian.org>"
# Primary key fingerprint: 6EE1 95D1 886E 8FFB 810D  4324 457C E0A0 8044 65C5
#      Subkey fingerprint: 7B73 BAD6 8BE7 A2C2 8931  4B22 701B 4F6B 1A69 3E59

* remotes/mjt/tags/trivial-patches-fetch: (21 commits)
  hw/core: nmi.c can be compiled as common-obj nowadays
  dump: fix memory_mapping_filter leak
  ide-test: check return of fwrite
  help: Add newline to end of thread option help text
  qemu-ga: remove useless allocation
  scsi/lsi53c895a: Remove unused lsi_mem_*() return value
  qapi: Fix some QMP documentation regressions
  hw/mips: add missing include
  register: display register prefix (name) since it is available
  hw/sparc: use ARRAY_SIZE() macro
  hw/xtensa: sim: use g_string/g_new
  target/arm: add data cache invalidation cp15 instruction to cortex-r5
  block: Correct documentation for BLOCK_WRITE_THRESHOLD
  trivial: Remove unneeded ifndef in memory.h
  altera_timer: fix incorrect memset
  configure: Detect native NetBSD curses(3)
  tests/libqtest: Print error instead of aborting when env variable is missing
  docs/qdev-device-use.txt: update section Default Devices
  docs qemu-doc: Avoid ide-drive, it's deprecated
  qemu-doc: Add hyperlinks to further license information
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-06-05 15:28:12 +01:00
Thomas Huth
03e947f9c2 hw/core: nmi.c can be compiled as common-obj nowadays
The target-specific code in nmi.c has been removed with this commit:

	commit f7e981f295
	nmi: remove x86 specific nmi handling

Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-06-05 17:23:36 +03:00
Peter Maydell
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Merge remote-tracking branch 'remotes/elmarco/tags/chrfe-pull-request' into staging

# gpg: Signature made Fri 02 Jun 2017 20:12:48 BST
# gpg:                using RSA key 0xDAE8E10975969CE5
# gpg: Good signature from "Marc-André Lureau <marcandre.lureau@redhat.com>"
# gpg:                 aka "Marc-André Lureau <marcandre.lureau@gmail.com>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg:          It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 87A9 BD93 3F87 C606 D276  F62D DAE8 E109 7596 9CE5

* remotes/elmarco/tags/chrfe-pull-request:
  char: move char devices to chardev/
  char: make chr_fe_deinit() optionaly delete backend
  char: rename functions that are not part of fe
  char: move CharBackend handling in char-fe unit
  char: generalize qemu_chr_write_all()
  be-hci: use backend functions
  chardev: serial & parallel declaration to own headers
  chardev: move headers to include/chardev
  Remove/replace sysemu/char.h inclusion
  char-win: close file handle except with console
  char-win: rename hcom->file
  char-win: rename win_chr_init/poll win_chr_serial_init/poll
  char-win: remove WinChardev.len
  char-win: simplify win_chr_read()
  char: cast ARRAY_SIZE() as signed to silent warning on empty array

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-06-05 10:09:14 +01:00
Philippe Mathieu-Daudé
016b4a93e7 register: display register prefix (name) since it is available
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-06-04 18:42:55 +03:00
Peter Maydell
d47a851cae migration/next for 20170601
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Merge remote-tracking branch 'remotes/juanquintela/tags/migration/20170601' into staging

migration/next for 20170601

# gpg: Signature made Thu 01 Jun 2017 17:51:04 BST
# gpg:                using RSA key 0xF487EF185872D723
# gpg: Good signature from "Juan Quintela <quintela@redhat.com>"
# gpg:                 aka "Juan Quintela <quintela@trasno.org>"
# Primary key fingerprint: 1899 FF8E DEBF 58CC EE03  4B82 F487 EF18 5872 D723

* remotes/juanquintela/tags/migration/20170601:
  migration: Move include/migration/block.h into migration/
  migration: Export ram.c functions in its own file
  migration: Create include for migration snapshots
  migration: Export rdma.c functions in its own file
  migration: Export tls.c functions in its own file
  migration: Export socket.c functions in its own file
  migration: Export fd.c functions in its own file
  migration: Export exec.c functions in its own file
  migration: Split qemu-file.h
  migration: Remove unneeded includes of migration/vmstate.h
  migration: shut src return path unconditionally
  migration: fix leak of src file on dst
  migration: Remove section_id parameter from vmstate_load
  migration: loadvm handlers are not used
  migration: Use savevm_handlers instead of loadvm copy

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-06-02 14:07:53 +01:00
Andrew Jones
a18e93125d load_uboot_image: don't assume a full header read
Don't allow load_uboot_image() to proceed when less bytes than
header-size was read.

Signed-off-by: Andrew Jones <drjones@redhat.com>
Message-id: 20170524091315.20284-1-drjones@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-06-02 11:51:46 +01:00
Marc-André Lureau
1ce2610c10 char: make chr_fe_deinit() optionaly delete backend
This simplifies removing a backend for a frontend user (no need to
retrieve the associated driver and separate delete call etc).

NB: many frontends have questionable handling of ending a chardev. They
should probably delete the backend to prevent broken reusage.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2017-06-02 11:33:53 +04:00
Marc-André Lureau
4d43a603c7 char: move CharBackend handling in char-fe unit
Move all the frontend struct and methods to a seperate unit. This avoids
accidentally mixing backend and frontend calls, and helps with readabilty.

Make qemu_chr_replay() a macro shared by both char and char-fe.

Export qemu_chr_write(), and use a macro for qemu_chr_write_all()

(nb: yes, CharBackend is for char frontend :)

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2017-06-02 11:33:53 +04:00