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this will make code better in the next patch
Signed-off-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
CC: Kevin Wolf <kwolf@redhat.com>
Tested-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
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The patch enforces proper locking for this operation.
Signed-off-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
CC: Kevin Wolf <kwolf@redhat.com>
Tested-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
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The check is unneccesary, we read the value at the start of the
thread, use it, and never change it. The value is checked to be
non-NULL before thread creation.
Spotted by coverity, CID 1339211
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
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I set current_time before the postcopy test but never use it;
(I think this was from the original version where it was time based).
Spotted by coverity, CID 1339208
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
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In a82d593b61054b3dea43 I accidentally removed the setting of
last_sent_block, put it back.
Symptoms:
Multithreaded compression only uses one thread.
Migration is a bit less efficient since it won't use 'cont' flags.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Fixes: a82d593b61054b3dea43
Signed-off-by: Juan Quintela <quintela@redhat.com>
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Devices have some quite complex object child/link relationships
which place some requirements on the object_property_del_all()
function to consider that properties can be modified while
being iterated over.
This extends the QOM property test case to replicate the
device like structure and expose any potential bugs in the
object_property_del_all() function.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
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Stop directly accessing the Object::properties field data
structure and instead use the formal object property iterator
APIs. This insulates the code from future data structure
changes in the Object struct.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Tested-by: Pavel Fedin <p.fedin@samsung.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
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Stop directly accessing the Object::properties field data
structure and instead use the formal object property iterator
APIs. This insulates the code from future data structure
changes in the Object struct.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Tested-by: Pavel Fedin <p.fedin@samsung.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
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Stop directly accessing the Object::properties field data
structure and instead use the formal object property iterator
APIs. This insulates the code from future data structure
changes in the Object struct.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Tested-by: Pavel Fedin <p.fedin@samsung.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
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Stop directly accessing the Object::properties field data
structure and instead use the formal object property iterator
APIs. This insulates the code from future data structure
changes in the Object struct.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Tested-by: Pavel Fedin <p.fedin@samsung.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
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Some users of QOM need to be able to iterate over properties
defined against an object instance. Currently they are just
directly using the QTAIL macros against the object properties
data structure.
This is bad because it exposes them to changes in the data
structure used to store properties, as well as changes in
functionality such as ability to register properties against
the class.
This provides an ObjectPropertyIterator struct which will
insulate the callers from the particular data structure
used to store properties. It can be used thus
ObjectProperty *prop;
ObjectPropertyIterator *iter;
iter = object_property_iter_init(obj);
while ((prop = object_property_iter_next(iter))) {
... do something with prop ...
}
object_property_iter_free(iter);
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Tested-by: Pavel Fedin <p.fedin@samsung.com>
[AF: Fixed examples, style cleanups]
Signed-off-by: Andreas Färber <afaerber@suse.de>
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Property::offset field is calculated as a diff between two pointers:
arrayprop->prop.offset = eltptr - (void *)dev;
If offset is declared as int, this subtraction can cause type overflow,
thus leading to failure of the subsequent assertion:
assert(qdev_get_prop_ptr(dev, &arrayprop->prop) == eltptr);
So ptrdiff_t should be used instead.
Signed-off-by: Ildar Isaev <ild@inbox.ru>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Andreas Färber <afaerber@suse.de>
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Block layer patches
# gpg: Signature made Wed 18 Nov 2015 15:28:32 GMT using RSA key ID C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"
* remotes/kevin/tags/for-upstream:
block: Call external_snapshot_clean after blockdev-snapshot
blockdev: Add missing bdrv_unref() in drive-backup
iotests: fix race in 030
nand: fix address overflow
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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commit 2b8819c6eee517c1582983773f8555bb3f9ed645
("vhost-user: modify SET_LOG_BASE to pass mmap size and offset")
passes log size in units of 4 byte chunks instead of the
expected size in bytes.
Fix this up.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Some features (such as ctrl vq) are supported
by qemu without need to communicate with the
backend.
Drop them from the feature mask so we set them
unconditionally.
Reported-by: Victor Kaplansky <vkaplans@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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'remotes/berrange/tags/qcrypto-fixes-20151118-1' into staging
Pull qcrypto fixes 2015/11/18 v1
# gpg: Signature made Wed 18 Nov 2015 15:44:07 GMT using RSA key ID 15104FDF
# gpg: Good signature from "Daniel P. Berrange <dan@berrange.com>"
# gpg: aka "Daniel P. Berrange <berrange@redhat.com>"
* remotes/berrange/tags/qcrypto-fixes-20151118-1:
crypto: avoid passing NULL to access() syscall
crypto: fix leaks in TLS x509 helper functions
crypto: fix mistaken setting of Error in success code path
crypto: fix leak of gnutls_dh_params_t data on credential unload
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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The qcrypto_tls_creds_x509_sanity_check() checks whether
certs exist by calling access(). It is valid for this
method to be invoked with certfile==NULL though, since
for client credentials the cert is optional. This caused
it to call access(NULL), which happens to be harmless on
current Linux, but should none the less be avoided.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
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into queue-block
One block patch for qemu 2.5-rc1.
# gpg: Signature made Wed Nov 18 16:26:59 2015 CET using RSA key ID E838ACAD
# gpg: Good signature from "Max Reitz <mreitz@redhat.com>"
* mreitz/tags/pull-block-for-kevin-2015-11-18:
block: Call external_snapshot_clean after blockdev-snapshot
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Otherwise the AioContext will never be released.
Signed-off-by: Alberto Garcia <berto@igalia.com>
Message-id: 1447419624-21918-1-git-send-email-berto@igalia.com
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
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All error paths after a successful bdrv_open() of target_bs should
contain a bdrv_unref(target_bs). This one did not yet, so add it.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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The test_tls_get_ipaddr() method forgot to free the returned data
from getaddrinfo().
The test_tls_write_cert_chain() method forgot to free the allocated
buffer holding the certificate data after writing it out to a file.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
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The qcrypto_tls_session_check_certificate() method was setting
an Error even when the ACL check suceeded. This didn't affect
the callers detection of errors because they relied on the
function return status, but this did cause a memory leak since
the caller would not free an Error they did not expect to be
set.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
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The QCryptoTLSCredsX509 object was not free'ing the allocated
gnutls_dh_params_t data when unloading the credentials
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
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the stop_test case tests that we can resume a block-stream
command after it has stopped/paused due to error. We cannot
always reliably query it before it finishes after resume, though,
so make this a conditional.
The important thing is that we are still testing that it has stopped,
and that it finishes successfully after we send a resume command.
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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The shifts of the address mask and value shift beyond 32 bits when there
are 5 address cycles.
Cc: qemu-stable@nongnu.org
Signed-off-by: Rabin Vincent <rabin.vincent@axis.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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'remotes/mdroth/tags/qga-pull-2015-11-13-v2-tag' into staging
qemu-ga patch queue for 2.5
* fixes for guest-exec gspawn() usage:
- inherit default lookup path by default instead of
explicitly defining it as being empty.
- don't inherit default PATH when PATH/ENV are explicit
v2:
* added fix for w32 'make install' target
* added version check for new g_spawn() flag
# gpg: Signature made Tue 17 Nov 2015 22:33:03 GMT using RSA key ID F108B584
# 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>"
* remotes/mdroth/tags/qga-pull-2015-11-13-v2-tag:
makefile: fix w32 install target for qemu-ga
qga: allow to lookup in PATH from the passed envp for guest-exec
qga: fix for default env processing for guest-exec
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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# gpg: Signature made Tue 17 Nov 2015 20:06:58 GMT using RSA key ID AAFC390E
# gpg: Good signature from "John Snow (John Huston) <jsnow@redhat.com>"
* remotes/jnsnow/tags/ide-pull-request:
ide: enable buffered requests for PIO read requests
ide: enable buffered requests for ATAPI devices
ide: orphan all buffered requests on DMA cancel
ide: add support for IDEBufferedRequest
block: add blk_abort_aio_request
ide/atapi: make PIO read requests async
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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fafcaf1 added a 'qemu-ga' install target on w32, which can be used
in place of the existing qemu-ga.exe target to also handle dealing
with other components such as DLLs for VSS/fsfreeze and generating
an MSI package if appropriate configure options are present.
As part of that, qemu-ga$(EXESUF) was removed from $TOOLS in favor
of this new qemu-ga target.
The install rule however relies on a direct mapping of the $TOOLS
entry to the actual resulting binary. In the case of w32, qemu-ga
is not identical to qemu-ga$(EXESUF), and the install recipe fails
to find the 'qemu-ga' binary.
Fix this by essentially remapping 'qemu-ga' back to 'qemu-ga.exe'
in the install recipe.
This raises the question of whether or not qemu-ga should continue
to live in TOOLS as opposed to its own special target, but as a
late fix for a regression in 2.5 this commit should be safer, since
we rely on qemu-ga's presence in $TOOLS in several places throughout
Makefile.
Reported-by: Stefan Weil <sw@weilnetz.de>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
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This was original behaviour before GLIB gspawn() rework and we rely on
this behaviour.
Signed-off-by: Yuri Pudgorodskiy <yur@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Michael Roth <mdroth@linux.vnet.ibm.com>
* add version check (2.33.2) for G_SPAWN_SEARCH_PATH_FROM_ENVP
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
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envp == NULL must be passed inside gspawn() if it was not passed with
the command line. Original code inherits environment from the QGA,
which is wrong.
Signed-off-by: Yuri Pudgorodskiy <yur@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
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staging
X86 fixes, 2015-11-17
Two X86 fixes, hopefully in time for -rc1.
# gpg: Signature made Tue 17 Nov 2015 19:06:53 GMT using RSA key ID 984DC5A6
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>"
* remotes/ehabkost/tags/x86-pull-request:
target-i386: Disable rdtscp on Opteron_G* CPU models
target-i386: Fix mulx for identical target regs
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Signed-off-by: Peter Lieven <pl@kamp.de>
Reviewed-by: Fam Zheng <famz@redhat.com>
Message-id: 1447345846-15624-7-git-send-email-pl@kamp.de
Signed-off-by: John Snow <jsnow@redhat.com>
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Signed-off-by: Peter Lieven <pl@kamp.de>
Reviewed-by: Fam Zheng <famz@redhat.com>
Message-id: 1447345846-15624-6-git-send-email-pl@kamp.de
Signed-off-by: John Snow <jsnow@redhat.com>
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If the guests canceles a DMA request we can prematurely
invoke all callbacks of buffered requests and flag all them
as orphaned. Ideally this avoids the need for draining all
requests. For CDROM devices this works in 100% of all cases.
Signed-off-by: Peter Lieven <pl@kamp.de>
Reviewed-by: Fam Zheng <famz@redhat.com>
Message-id: 1447345846-15624-5-git-send-email-pl@kamp.de
Signed-off-by: John Snow <jsnow@redhat.com>
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this patch adds a new aio readv compatible function which copies
all data through a bounce buffer. These buffered requests can be
flagged as orphaned which means that their original callback has
already been invoked and the request has just not been completed
by the backend storage. The bounce buffer guarantees that guest
memory corruption is avoided when such a orphaned request is
completed by the backend at a later stage.
This trick only works for read requests as a write request completed
at a later stage might corrupt data as there is no way to control
if and what data has already been written to the storage.
Signed-off-by: Peter Lieven <pl@kamp.de>
Reviewed-by: Fam Zheng <famz@redhat.com>
Message-id: 1447345846-15624-4-git-send-email-pl@kamp.de
Signed-off-by: John Snow <jsnow@redhat.com>
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Signed-off-by: Peter Lieven <pl@kamp.de>
Reviewed-by: Fam Zheng <famz@redhat.com>
Message-id: 1447345846-15624-3-git-send-email-pl@kamp.de
Signed-off-by: John Snow <jsnow@redhat.com>
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PIO read requests on the ATAPI interface used to be sync blk requests.
This has two significant drawbacks. First the main loop hangs util an
I/O request is completed and secondly if the I/O request does not
complete (e.g. due to an unresponsive storage) Qemu hangs completely.
Note: Due to possible race conditions requests during an ongoing
elementary transfer are still sync.
Signed-off-by: Peter Lieven <pl@kamp.de>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 1447345846-15624-2-git-send-email-pl@kamp.de
Signed-off-by: John Snow <jsnow@redhat.com>
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KVM can't virtualize rdtscp on AMD CPUs yet, so there's no point
in enabling it by default on AMD CPU models, as all we are
getting are confused users because of the "host doesn't support
requested feature" warnings.
Disable rdtscp on Opteron_G* models, but keep compatibility on
pc-*-2.4 and older (just in case there are people are doing funny
stuff using AMD CPU models on Intel hosts).
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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The Intel specification clearly indicates that the low part
of the result is written first and the high part of the result
is written second; thus if ModRM:reg and VEX.vvvv are identical,
the final result should be the high part of the result.
At present, TCG may either produce incorrect results or crash
with --enable-checking.
Reported-by: Toni Nedialkov <farmdve@gmail.com>
Reported-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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We wanted to start/stop rings on VRING_ENABLE, but that is not what QEMU
does. Rather than tweaking code some more, with risk to stability, let's
just document it as it is.
We'll be able to fix this in the future with a new protocol feature bit.
Reported-by: Victor Kaplansky <victork@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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During migration devices continue writing to the guest's memory.
The writes has to be reported to QEMU. This change implements
minimal support in vhost-user-bridge required for successful
migration of a guest with virtio-net device.
Signed-off-by: Victor Kaplansky <victork@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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There's no indication of any sort that i440fx doesn't support
"iommu=on"
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Bandan Das <bsd@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Bandan Das <bsd@redhat.com>
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The helper function machine_iommu() isn't necesary. We can
directly check for the property.
Signed-off-by: Bandan Das <bsd@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Bandan Das <bsd@redhat.com>
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staging
vnc: buffer code improvements, bugfixes.
# gpg: Signature made Mon 16 Nov 2015 17:20:02 GMT using RSA key ID D3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg: aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>"
* remotes/kraxel/tags/pull-vnc-20151116-1:
vnc: fix mismerge
buffer: allow a buffer to shrink gracefully
buffer: factor out buffer_adj_size
buffer: factor out buffer_req_size
vnc: recycle empty vs->output buffer
vnc: fix local state init
vnc: only alloc server surface with clients connected
vnc: use vnc_{width,height} in vnc_set_area_dirty
vnc: factor out vnc_update_server_surface
vnc: add vnc_width+vnc_height helpers
vnc: zap dead code
vnc-jobs: move buffer reset, use new buffer move
vnc: kill jobs queue buffer
vnc: attach names to buffers
buffer: add tracing
buffer: add buffer_shrink
buffer: add buffer_move
buffer: add buffer_move_empty
buffer: add buffer_init
buffer: make the Buffer capacity increase in powers of two
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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staging
# gpg: Signature made Tue 17 Nov 2015 11:13:05 GMT using RSA key ID 81AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>"
* remotes/stefanha/tags/block-pull-request:
virtio-blk: Fix double completion for werror=stop
block: make 'stats-interval' an array of ints instead of a string
aio-epoll: Fix use-after-free of node
disas/arm: avoid clang shifting negative signed warning
tpm: avoid clang shifting negative signed warning
tests: Ignore recent test binaries
docs: update bitmaps.md
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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When a request R is absorbed by request M, it is appended to the
"mr_next" queue led by M, and is completed together with the completion
of M, in virtio_blk_rw_complete.
During DMA restart in virtio_blk_dma_restart_bh, requests in s->rq are
parsed and submitted again, possibly with a stale req->mr_next. It could
be a problem if the request merging in virtio_blk_handle_request hasn't
refreshed every mr_next pointer, in which case, virtio_blk_rw_complete
could walk through unexpected requests following the stale pointers.
Fix this by unsetting the pointer in virtio_blk_rw_complete. It is safe
because this req is either completed and freed right away, or it will be
restarted and parsed from scratch out of the vq later.
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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This is the natural JSON representation and prevents us from having to
decode the list manually.
Signed-off-by: Alberto Garcia <berto@igalia.com>
Message-id: 0e3da8fa206f4ab534ae3ce6086e75fe84f1557e.1447665472.git.berto@igalia.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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aio_epoll_update needs the fields in node, so delay the free.
Reported-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
Message-id: 1447655534-13974-1-git-send-email-famz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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clang 3.7.0 on x86_64 warns about the following:
disas/arm.c:1782:17: warning: shifting a negative signed value is undefined [-Wshift-negative-value]
imm |= (-1 << 7);
~~ ^
Note that this patch preserves the tab indent in this source file
because the surrounding code still uses tabs.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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clang 3.7.0 on x86_64 warns about the following:
hw/tpm/tpm_tis.c:1000:36: warning: shifting a negative signed value is undefined [-Wshift-negative-value]
tis->loc[c].iface_id = TPM_TIS_IFACE_ID_SUPPORTED_FLAGS1_3;
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
hw/tpm/tpm_tis.c:144:10: note: expanded from macro 'TPM_TIS_IFACE_ID_SUPPORTED_FLAGS1_3'
(~0 << 4)/* all of it is don't care */)
~~ ^
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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