Commit Graph

52055 Commits

Author SHA1 Message Date
Kevin Wolf 46181129ea block: Ignore multiple children in bdrv_check_update_perm()
change_parent_backing_link() will need to update multiple BdrvChild
objects at once. Checking permissions reference by reference doesn't
work because permissions need to be consistent only with all parents
moved to the new child.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2017-03-07 14:53:28 +01:00
Kevin Wolf 8ee039951d block: Factor out bdrv_replace_child_noperm()
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2017-03-07 14:53:28 +01:00
Kevin Wolf d0ac038025 block: Factor out should_update_child()
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2017-03-07 14:53:28 +01:00
Kevin Wolf 067acf28d1 block: Fix blockdev-snapshot error handling
For blockdev-snapshot, external_snapshot_prepare() accepts an arbitrary
node reference at first and only checks later whether it already has a
backing file. Between those places, other errors can occur.

Therefore checking in external_snapshot_abort() whether state->new_bs
has a backing file is not sufficient to tell whether bdrv_append() was
already completed or not. Trying to undo the bdrv_append() when it
wasn't even executed is wrong.

Introduce a new boolean flag in the state to fix this.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2017-03-07 14:53:28 +01:00
Kevin Wolf 88f9d1b3d2 mirror: Fix error path for dirty bitmap creation
mirror_top_bs must be removed from the graph again when creating the
dirty bitmap fails.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2017-03-07 14:53:28 +01:00
Kevin Wolf 0bf74767ff mirror: Fix permissions for removing mirror_top_bs
mirror_top_bs takes write permissions on its backing file, which can
make it impossible to attach that backing file node to another parent.
However, this is exactly what needs to be done in order to remove
mirror_top_bs from the backing chain. So give up the write permission
first.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2017-03-07 14:53:28 +01:00
Kevin Wolf 7d9fcb391c mirror: Fix permission problem with 'replaces'
The 'replaces' option of drive-mirror can be used to mirror a Quorum
node to a new image and then let the target image replace one of the
Quorum children. In order for this graph modification to succeed, the
mirror job needs to lift its restrictions on the target node first
before actually replacing the child.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2017-03-07 14:53:28 +01:00
Kevin Wolf b247767aac commit: Fix error handling
Apparently some kind of mismerge happened in commit 8dfba279, which
broke the error handling without any real reason by removing the
assignment of the return value to ret in a blk_insert_bs() call.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2017-03-07 14:53:28 +01:00
Peter Maydell ff79d5e939 target/xtensa updates:
- instantiate local memories in xtensa sim machine;
 - add two missing include files to xtensa core importing script.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
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 =NOaN
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/xtensa/tags/20170306-xtensa' into staging

target/xtensa updates:

- instantiate local memories in xtensa sim machine;
- add two missing include files to xtensa core importing script.

# gpg: Signature made Mon 06 Mar 2017 22:32:45 GMT
# gpg:                using RSA key 0x51F9CC91F83FA044
# gpg: Good signature from "Max Filippov <filippov@cadence.com>"
# gpg:                 aka "Max Filippov <max.filippov@cogentembedded.com>"
# gpg:                 aka "Max Filippov <jcmvbkbc@gmail.com>"
# Primary key fingerprint: 2B67 854B 98E5 327D CDEB  17D8 51F9 CC91 F83F A044

* remotes/xtensa/tags/20170306-xtensa:
  target/xtensa: add two missing headers to core import script
  target/xtensa: sim: instantiate local memories

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-03-07 09:57:14 +00:00
Peter Maydell d6780c8221 Fixes issues that got merged with the latest pull request:
- missing O_NOFOLLOW flag for CVE-2016-960
 - build break with older glibc that don't have O_PATH and AT_EMPTY_PATH
 - various bugs reported by Coverity
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 9hEAnihQPzVEBBKoDuWylzU/scUg+7ho
 =8xHj
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/gkurz/tags/fixes-for-2.9' into staging

Fixes issues that got merged with the latest pull request:
- missing O_NOFOLLOW flag for CVE-2016-960
- build break with older glibc that don't have O_PATH and AT_EMPTY_PATH
- various bugs reported by Coverity

# gpg: Signature made Mon 06 Mar 2017 17:51:29 GMT
# gpg:                using DSA key 0x02FC3AEB0101DBC2
# gpg: Good signature from "Greg Kurz <groug@kaod.org>"
# gpg:                 aka "Greg Kurz <groug@free.fr>"
# gpg:                 aka "Greg Kurz <gkurz@linux.vnet.ibm.com>"
# gpg:                 aka "Gregory Kurz (Groug) <groug@free.fr>"
# gpg:                 aka "[jpeg image of size 3330]"
# 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: 2BD4 3B44 535E C0A7 9894  DBA2 02FC 3AEB 0101 DBC2

* remotes/gkurz/tags/fixes-for-2.9:
  9pfs: fix vulnerability in openat_dir() and local_unlinkat_common()
  9pfs: fix O_PATH build break with older glibc versions
  9pfs: don't use AT_EMPTY_PATH in local_set_cred_passthrough()
  9pfs: fail local_statfs() earlier
  9pfs: fix fd leak in local_opendir()
  9pfs: fix bogus fd check in local_remove()

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-03-07 09:09:53 +00:00
Peter Maydell 7dc3bc7a04 qemu-ga patch queue for 2.9
* fix fsfreeze for filesystems mounted in multiple locations
 * fix test failure when running in a chroot
 * support for socket-based activation
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
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 =7RaI
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/mdroth/tags/qga-pull-2017-03-06-tag' into staging

qemu-ga patch queue for 2.9

* fix fsfreeze for filesystems mounted in multiple locations
* fix test failure when running in a chroot
* support for socket-based activation

# gpg: Signature made Mon 06 Mar 2017 07:54:17 GMT
# gpg:                using RSA key 0x3353C9CEF108B584
# gpg: Good signature from "Michael Roth <flukshun@gmail.com>"
# gpg:                 aka "Michael Roth <mdroth@utexas.edu>"
# gpg:                 aka "Michael Roth <mdroth@linux.vnet.ibm.com>"
# Primary key fingerprint: CEAC C9E1 5534 EBAB B82D  3FA0 3353 C9CE F108 B584

* remotes/mdroth/tags/qga-pull-2017-03-06-tag:
  tests: check path to avoid a failing qga/get-vcpus test
  qga: ignore EBUSY when freezing a filesystem
  qga: add systemd socket activation support

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-03-07 07:32:28 +00:00
Greg Kurz b003fc0d8a 9pfs: fix vulnerability in openat_dir() and local_unlinkat_common()
We should pass O_NOFOLLOW otherwise openat() will follow symlinks and make
QEMU vulnerable.

While here, we also fix local_unlinkat_common() to use openat_dir() for
the same reasons (it was a leftover in the original patchset actually).

This fixes CVE-2016-9602.

Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2017-03-06 17:34:01 +01:00
Greg Kurz 918112c02a 9pfs: fix O_PATH build break with older glibc versions
When O_PATH is used with O_DIRECTORY, it only acts as an optimization: the
openat() syscall simply finds the name in the VFS, and doesn't trigger the
underlying filesystem.

On systems that don't define O_PATH, because they have glibc version 2.13
or older for example, we can safely omit it. We don't want to deactivate
O_PATH globally though, in case it is used without O_DIRECTORY. The is done
with a dedicated macro.

Systems without O_PATH may thus fail to resolve names that involve
unreadable directories, compared to newer systems succeeding, but such
corner case failure is our only option on those older systems to avoid
the security hole of chasing symlinks inappropriately.

Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
(added last paragraph to changelog as suggested by Eric Blake)
Signed-off-by: Greg Kurz <groug@kaod.org>
2017-03-06 17:34:01 +01:00
Greg Kurz b314f6a077 9pfs: don't use AT_EMPTY_PATH in local_set_cred_passthrough()
The name argument can never be an empty string, and dirfd always point to
the containing directory of the file name. AT_EMPTY_PATH is hence useless
here. Also it breaks build with glibc version 2.13 and older.

It is actually an oversight of a previous tentative patch to implement this
function. We can safely drop it.

Reported-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Greg Kurz <groug@kaod.org>
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Eric Blake <eblake@redhat.com>
2017-03-06 17:34:01 +01:00
Greg Kurz 23da0145cc 9pfs: fail local_statfs() earlier
If we cannot open the given path, we can return right away instead of
passing -1 to fstatfs() and close(). This will make Coverity happy.

(Coverity issue CID1371729)

Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Daniel P. berrange <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2017-03-06 17:34:01 +01:00
Greg Kurz faab207f11 9pfs: fix fd leak in local_opendir()
Coverity issue CID1371731

Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2017-03-06 17:34:01 +01:00
Greg Kurz b7361d46e7 9pfs: fix bogus fd check in local_remove()
This was spotted by Coverity as a fd leak. This is certainly true, but also
local_remove() would always return without doing anything, unless the fd is
zero, which is very unlikely.

(Coverity issue CID1371732)

Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
2017-03-06 17:34:01 +01:00
Peter Maydell eba44e9339 -----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
 
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Merge remote-tracking branch 'remotes/jasowang/tags/net-pull-request' into staging

# gpg: Signature made Mon 06 Mar 2017 04:15:17 GMT
# gpg:                using RSA key 0xEF04965B398D6211
# gpg: Good signature from "Jason Wang (Jason Wang on RedHat) <jasowang@redhat.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: 215D 46F4 8246 689E C77F  3562 EF04 965B 398D 6211

* remotes/jasowang/tags/net-pull-request:
  net/filter-mirror: Follow CODING_STYLE
  COLO-compare: Fix icmp and udp compare different packet always dump bug
  COLO-compare: Optimize compare_common and compare_tcp
  COLO-compare: Rename compare function and remove duplicate codes
  filter-rewriter: skip net_checksum_calculate() while offset = 0
  net/colo: fix memory double free error
  vmxnet3: VMStatify rx/tx q_descr and int_state
  vmxnet3: Convert ring values to uint32_t's
  net/colo-compare: Fix memory free error
  colo-compare: Fix removing fds been watched incorrectly in finalization
  char: remove the right fd been watched in qemu_chr_fe_set_handlers()
  colo-compare: kick compare thread to exit after some cleanup in finalization
  colo-compare: use g_timeout_source_new() to process the stale packets
  NetRxPkt: Remove code duplication in net_rx_pkt_pull_data()
  NetRxPkt: Account buffer with ETH header in IOV length
  NetRxPkt: Do not try to pull more data than present
  NetRxPkt: Fix memory corruption on VLAN header stripping
  eth: Extend vlan stripping functions
  net: Remove useless local var pkt

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-03-06 15:13:23 +00:00
Peter Maydell 56b51708e9 ppc patch queue for 2017-03-06
Looks like my previous batch wasn't quite the last before hard freeze.
 This has a handful of bugfixes to go in.  They're all genuine
 bugfixes, though not regressions in some cases.
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Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-2.9-20170306' into staging

ppc patch queue for 2017-03-06

Looks like my previous batch wasn't quite the last before hard freeze.
This has a handful of bugfixes to go in.  They're all genuine
bugfixes, though not regressions in some cases.

# gpg: Signature made Mon 06 Mar 2017 04:07:48 GMT
# gpg:                using RSA key 0x6C38CACA20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>"
# gpg:                 aka "David Gibson (Red Hat) <dgibson@redhat.com>"
# gpg:                 aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>"
# gpg:                 aka "David Gibson (kernel.org) <dwg@kernel.org>"
# Primary key fingerprint: 75F4 6586 AE61 A66C C44E  87DC 6C38 CACA 20D9 B392

* remotes/dgibson/tags/ppc-for-2.9-20170306:
  target/ppc: use helper for excp handling
  target/ppc: fmadd: add macro for updating flags
  target/ppc: fmadd check for excp independently
  spapr: ensure that all threads within core are on the same NUMA node
  ppc/xics: register reset handlers for the ICP and ICS objects

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-03-06 13:06:30 +00:00
Peter Maydell fbddc2e560 QAPI patches for 2017-02-28
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Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2017-02-28' into staging

QAPI patches for 2017-02-28

# gpg: Signature made Sun 05 Mar 2017 08:21:51 GMT
# 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-qapi-2017-02-28: (27 commits)
  qapi: Improve qobject visitor documentation
  qapi: Fix object input visit beyond end of list
  tests: Cover input visit beyond end of list
  qapi: Make input visitors detect unvisited list tails
  test-qobject-input-visitor: Cover missing nested struct member
  tests: Cover partial input visit of list
  test-string-input-visitor: Improve list coverage
  test-string-input-visitor: Tear down existing test automatically
  tests-qobject-input-strict: Merge into test-qobject-input-visitor
  qapi: Drop unused non-strict qobject input visitor
  test-qobject-input-visitor: Use strict visitor
  qom: Make object_property_set_qobject()'s input visitor strict
  qapi: Make string input and opts visitor require non-null input
  qapi: Drop string input visitor method optional()
  qapi: Improve qobject input visitor error reporting
  qapi: Make QObject input visitor set *list reliably
  qapi: Clean up after commit 3d344c2
  qapi: Improve a QObject input visitor error message
  qmp: Eliminate silly QERR_QMP_* macros
  qmp: Drop duplicated QMP command object checks
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-03-06 10:18:33 +00:00
Bruce Rogers ec72c0e271 tests: check path to avoid a failing qga/get-vcpus test
The qga/get-vcpus test fails in a simple chroot environment, as
used in an openSUSE Build Service local build, so first check
that the sysfs based path exists in order to avoid calling this
test in an environment where it won't work right.

Signed-off-by: Bruce Rogers <brogers@suse.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2017-03-06 00:54:19 -06:00
Peter Lieven ce2eb6c4a0 qga: ignore EBUSY when freezing a filesystem
the current implementation fails if we try to freeze an
already frozen filesystem. This can happen if a filesystem
is mounted more than once (e.g. with a bind mount).

Suggested-by: Christian Theune <ct@flyingcircus.io>
Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Lieven <pl@kamp.de>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2017-03-06 00:54:18 -06:00
Stefan Hajnoczi 26de229657 qga: add systemd socket activation support
AF_UNIX and AF_VSOCK listen sockets can be passed in by systemd on
startup.  This allows systemd to manage the listen socket until the
first client connects and between restarts.  Advantages of socket
activation are that parallel startup of network services becomes
possible and that unused daemons do not consume memory.

The key to achieving this is the LISTEN_FDS environment variable, which
is a stable ABI as shown here:
https://www.freedesktop.org/wiki/Software/systemd/InterfacePortabilityAndStabilityChart/

We could link against libsystemd and use sd_listen_fds(3) but it's easy
to implement the tiny LISTEN_FDS ABI so that qemu-ga does not depend on
libsystemd.  Some systems may not have systemd installed and wish to
avoid the dependency.  Other init systems or socket activation servers
may implement the same ABI without systemd involvement.

Test as follows:

  $ cat ~/.config/systemd/user/qga.service
  [Unit]
  Description=qga

  [Service]
  WorkingDirectory=/tmp
  ExecStart=/path/to/qemu-ga --logfile=/tmp/qga.log --pidfile=/tmp/qga.pid --statedir=/tmp

  $ cat ~/.config/systemd/user/qga.socket
  [Socket]
  ListenStream=/tmp/qga.sock

  [Install]
  WantedBy=default.target

  $ systemctl --user daemon-reload
  $ systemctl --user start qga.socket
  $ nc -U /tmp/qga.sock

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2017-03-06 00:54:18 -06:00
Zhang Chen f0aabd5c4a net/filter-mirror: Follow CODING_STYLE
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-03-06 11:46:02 +08:00
Zhang Chen 1723a7f7cf COLO-compare: Fix icmp and udp compare different packet always dump bug
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-03-06 11:46:02 +08:00
Zhang Chen 6efeb3286d COLO-compare: Optimize compare_common and compare_tcp
Add offset args for colo_packet_compare_common, optimize
colo_packet_compare_icmp() and colo_packet_compare_udp()
just compare the IP payload. Before compare all tcp packet,
we compare tcp checksum firstly, this function can get
better performance.

Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-03-06 11:46:02 +08:00
Zhang Chen 2ad7ca4c81 COLO-compare: Rename compare function and remove duplicate codes
Rename colo_packet_compare() to colo_packet_compare_common() that
make tcp_compare udp_compare icmp_compare reuse this function.
Remove minimum packet size check in icmp_compare, because we have
check this in parse_packet_early().

Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-03-06 11:46:02 +08:00
zhanghailiang db0a762e4b filter-rewriter: skip net_checksum_calculate() while offset = 0
While the offset of packets's sequence for primary side and
secondary side is zero, it is unnecessary to call net_checksum_calculate()
to recalculate the checksume value of packets.

Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-03-06 11:46:02 +08:00
zhanghailiang 0e79668e1f net/colo: fix memory double free error
The 'primary_list' and 'secondary_list' members of struct Connection
is not allocated through dynamically g_queue_new(), but we free it by using
g_queue_free(), which will lead to a double-free bug.

Reviewed-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-03-06 11:46:02 +08:00
Dr. David Alan Gilbert a11f5cb005 vmxnet3: VMStatify rx/tx q_descr and int_state
Fairly simple mechanical conversion of all fields.

TODO!!!!
The problem is vmxnet3-ring size/cell_size/next are declared as size_t
but written as 32bit.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Acked-by: Dmitry Fleytman <dmitry@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-03-06 11:46:02 +08:00
Dr. David Alan Gilbert 5504bba1fb vmxnet3: Convert ring values to uint32_t's
The index's in the Vmxnet3Ring were migrated as 32bit ints
yet are declared as size_t's.  They appear to be derived
from 32bit values loaded from guest memory, so actually
store them as that.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Acked-by: Dmitry Fleytman <dmitry@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-03-06 11:46:02 +08:00
Zhang Chen 727c2d764f net/colo-compare: Fix memory free error
We use g_queue_init() to init s->conn_list, so we should use g_queue_clear()
to instead of g_queue_free().

Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Reviewed-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-03-06 11:46:02 +08:00
zhanghailiang b43decb015 colo-compare: Fix removing fds been watched incorrectly in finalization
We will catch the bellow error report while try to delete compare object
by qmp command:
chardev/char-io.c:91: io_watch_poll_finalize: Assertion `iwp->src == ((void *)0)' failed.

This is caused by failing to remove the right fd been watched while
call qemu_chr_fe_set_handlers();

Fix it by pass the worker_context parameter to qemu_chr_fe_set_handlers().

Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Reviewed-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-03-06 11:46:02 +08:00
zhanghailiang 8487ce45f8 char: remove the right fd been watched in qemu_chr_fe_set_handlers()
We can call qemu_chr_fe_set_handlers() to add/remove fd been watched
in 'context' which can be either default main context or other explicit
context. But the original logic is not correct, we didn't remove
the right fd because we call g_main_context_find_source_by_id(NULL, tag)
which always try to find the Gsource from default context.

Fix it by passing the right context to g_main_context_find_source_by_id().

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-03-06 11:46:02 +08:00
zhanghailiang dfd917a9c2 colo-compare: kick compare thread to exit after some cleanup in finalization
We should call g_main_loop_quit() to notify colo compare thread to
exit, Or it will run in g_main_loop_run() forever.

Besides, the finalizing process can't happen in context of colo thread,
it is reasonable to remove the 'if (qemu_thread_is_self(&s->thread))'
branch.

Before compare thead exits, some cleanup works need to be
done,  All unhandled packets need to be released and connection_track_table
needs to be freed, or there will be memory leak.

Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Reviewed-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-03-06 11:46:02 +08:00
zhanghailiang 66d2a2423e colo-compare: use g_timeout_source_new() to process the stale packets
Instead of using qemu timer to process the stale packets,
We re-use the colo compare thread to process these packets
by creating a new timeout coroutine.

Besides, since we process all the same vNIC's net connection/packets
in one thread, it is safe to remove the timer_check_lock.

Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-03-06 11:46:02 +08:00
Dmitry Fleytman 002d394fd4 NetRxPkt: Remove code duplication in net_rx_pkt_pull_data()
This is a refactoring commit that does not change behavior.

Signed-off-by: Dmitry Fleytman <dmitry@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-03-06 11:46:02 +08:00
Dmitry Fleytman c5d083c561 NetRxPkt: Account buffer with ETH header in IOV length
In case of VLAN stripping ETH header is stored in a
separate chunk and length of IOV should take this into
account.

This patch fixes checksum validation for RX packets
with VLAN header.

Devices affected by this problem: e1000e and vmxnet3.

Cc: qemu-stable@nongnu.org
Signed-off-by: Dmitry Fleytman <dmitry@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-03-06 11:46:02 +08:00
Dmitry Fleytman d5e772146d NetRxPkt: Do not try to pull more data than present
In case of VLAN stripping, ETH header put into a
separate buffer, therefore amont of data copied
from original IOV should be smaller.

Cc: qemu-stable@nongnu.org
Signed-off-by: Dmitry Fleytman <dmitry@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-03-06 11:46:02 +08:00
Dmitry Fleytman df8bf7a7fe NetRxPkt: Fix memory corruption on VLAN header stripping
This patch fixed a problem that was introduced in commit eb700029.

When net_rx_pkt_attach_iovec() calls eth_strip_vlan()
this can result in pkt->ehdr_buf being overflowed, because
ehdr_buf is only sizeof(struct eth_header) bytes large
but eth_strip_vlan() can write
sizeof(struct eth_header) + sizeof(struct vlan_header)
bytes into it.

Devices affected by this problem: vmxnet3.

Cc: qemu-stable@nongnu.org
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Dmitry Fleytman <dmitry@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-03-06 11:46:02 +08:00
Dmitry Fleytman 566342c312 eth: Extend vlan stripping functions
Make VLAN stripping functions return number of bytes
copied to given Ethernet header buffer.

This information should be used to re-compose
packet IOV after VLAN stripping.

Cc: qemu-stable@nongnu.org
Signed-off-by: Dmitry Fleytman <dmitry@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-03-06 11:46:02 +08:00
Fam Zheng 290e6e113b net: Remove useless local var pkt
This has been pointless since commit 605d52e62, which was a
search-and-replace, overlooked the redundancy.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Dmitry Fleytman <dmitry@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-03-06 11:46:02 +08:00
Nikunj A Dadhania 182fe2cf19 target/ppc: use helper for excp handling
Use the helper routine float[32,64]_maddsub_update_excp() in VSX_MADD
macro.

Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2017-03-06 13:17:28 +11:00
Nikunj A Dadhania 3e5b26cf57 target/ppc: fmadd: add macro for updating flags
Adds FPU_MADDSUB_UPDATE macro, this will be used for other routines
having float32/16

Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2017-03-06 13:17:28 +11:00
Nikunj A Dadhania 806c9d71ab target/ppc: fmadd check for excp independently
Current order of checking does not confirm with the spec
(ISA 3.0: MultiplyAddDP page-469). Change the order and make them
independent of each other.

For example: a = infinity, b = zero, c = SNaN, this should set both
VXIMZ and VXNAN

Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2017-03-06 13:17:28 +11:00
Igor Mammedov 17b7c39e27 spapr: ensure that all threads within core are on the same NUMA node
Threads within a core shouldn't be on different
NUMA nodes, so if user has misconfgured command
line, fail QEMU at start up to force user fix it.

For now use the first thread on the core as source
of core's node-id. Later when cpu-numa refactoring
lands  it will be switched to core's node-id from
possible_cpus[].

This prevents the same problems as commit 20bb648d
"spapr: Fix default NUMA node allocation for threads",
but for the case of manually configured NUMA node
mappings, instead of just the default case.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2017-03-06 10:32:53 +11:00
Cédric Le Goater 7ea6e06717 ppc/xics: register reset handlers for the ICP and ICS objects
The recent changes on the XICS layer removed the XICSState object to
let the sPAPR machine handle the ICP and ICS directly. The reset of
these objects was previously handled by XICSState, which was a SysBus
device, and to keep the same behavior, the ICP and ICS were assigned
to SysbBus.

But that broke the 'info qtree' command in the monitor. 'qtree'
performs a loop on the children of a bus to print their properties and
SysBus devices are expected to be found under SysBus, which is not the
case anymore.

The fix for this problem is to register reset handlers for the ICP and
ICS objects and stop using SysBus for such devices.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Tested-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2017-03-06 10:07:38 +11:00
Markus Armbruster aa3a982e67 qapi: Improve qobject visitor documentation
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1488544368-30622-29-git-send-email-armbru@redhat.com>
2017-03-05 09:14:20 +01:00
Markus Armbruster 1f41a645b6 qapi: Fix object input visit beyond end of list
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1488544368-30622-28-git-send-email-armbru@redhat.com>
2017-03-05 09:14:20 +01:00
Markus Armbruster a9416dc62c tests: Cover input visit beyond end of list
When you try to visit beyond the end of a list, the qobject input
visitor crashes, and the string visitor screws returns garbage.  The
generated list visits never go beyond the list end, but manual visits
could.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1488544368-30622-27-git-send-email-armbru@redhat.com>
2017-03-05 09:14:20 +01:00