Zhang Min [Thu, 23 Jan 2014 07:59:16 +0000 (15:59 +0800)]
drive mirror:fix memory leak
In the function mirror_iteration() -> qemu_iovec_init(),
it allocates memory for op->qiov.iov, when the write request calls back,
but in the function mirror_iteration_done(), it only frees the op,
not free the op->qiov.iov, so this causes memory leak.
It should use qemu_iovec_destroy() to free op->qiov.
Signed-off-by: Zhang Min <rudy.zhangmin@huawei.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Liu Yuan [Tue, 21 Jan 2014 17:14:11 +0000 (01:14 +0800)]
sheepdog: fix 'qemu-img map'
It was muted in the previous commit 4bc74be9. Let's revive it since nothing
prevents us to do it.
With this patch, following command will work as other formats:
$ qemu-img map sheepdog:image
Cc: qemu-devel@nongnu.org Cc: Kevin Wolf <kwolf@redhat.com> Cc: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Liu Yuan <namei.unix@gmail.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Hu Tao [Tue, 21 Jan 2014 03:30:02 +0000 (11:30 +0800)]
qcow2: fix wrong value of L1E_OFFSET_MASK, L2E_OFFSET_MASK and REFT_OFFSET_MASK
Accoring to qcow spec, the offset fields in l1e, l2e and ref table entry
start at bit 9. The offset is cluster offset, and the smallest possible
cluster size is 512 bytes.
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Stefan Hajnoczi [Mon, 13 Jan 2014 10:47:39 +0000 (18:47 +0800)]
dataplane: fix shadowed return value
Propagate the error return value from get_indirect(). This bug was
introduced in commit 4d684832 ("vring: create a common function to parse
descriptors").
Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Peter Feiner [Wed, 8 Jan 2014 19:43:25 +0000 (19:43 +0000)]
block: fix backing file segfault
When a backing file is opened such that (1) a protocol is directly
used as the block driver and (2) the block driver has bdrv_file_open,
bdrv_open_backing_file segfaults. The problem arises because
bdrv_open_common returns without setting bd->backing_hd->file.
To effect (1), you seem to have to use the -F flag in qemu-img. There
are several block drivers that satisfy (2), such as "file" and "nbd".
Here are some concrete examples:
#!/bin/bash
echo Test file format
./qemu-img create -f file base.file 1m
./qemu-img create -f qcow2 -F file -o backing_file=base.file\
file-overlay.qcow2
./qemu-img convert -O raw file-overlay.qcow2 file-convert.raw
echo Test nbd format
SOCK=$PWD/nbd.sock
./qemu-img create -f raw base.raw 1m
./qemu-nbd -t -k $SOCK base.raw &
trap "kill $!" EXIT
while ! test -e $SOCK; do sleep 1; done
./qemu-img create -f qcow2 -F nbd -o backing_file=nbd:unix:$SOCK\
nbd-overlay.qcow2
./qemu-img convert -O raw nbd-overlay.qcow2 nbd-convert.raw
Without this patch, the two qemu-img convert commands segfault.
Max Reitz [Fri, 20 Dec 2013 18:28:23 +0000 (19:28 +0100)]
iotests: Test new blkdebug/blkverify interface
Add a test for the new blkdebug/blkverify interface.
This test is not written in Python, although it uses QMP. This is
because it invokes the qemu-io HMP command, which outputs errors to
stderr instead of returning them through QMP. Filtering and testing that
output is easier in a shell script than with the Python infrastructure.
Signed-off-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Max Reitz [Fri, 20 Dec 2013 18:28:20 +0000 (19:28 +0100)]
qemu-io: Make filename optional
Giving a filename is actually not essential, since it can be specified
through the options as well - on the contrary: Sometimes a filename must
not be given.
Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Max Reitz [Fri, 20 Dec 2013 18:28:17 +0000 (19:28 +0100)]
blkverify: Don't require protocol filename
If the filename is not prefixed by "blkverify:" in
blkverify_parse_filename(), the blkverify driver was not selected
through that protocol prefix, but by an explicit command line (or QMP)
option (like driver=blkverify).
If blkverify_parse_filename() has been called, a filename has been
given. If it is not prefixed, it is probably really just a plain
filename. This is no problem, since we can use it as the test image
filename and rely on the user to specify the raw image filename through
the new corresponding option.
Signed-off-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Max Reitz [Fri, 20 Dec 2013 18:28:14 +0000 (19:28 +0100)]
blockdev: Move "file" to legacy_opts
Specifying the image filename through the "file" option is a legacy
option and should not be supported by blockdev-add (in that case, giving
a string for "file" references an existing block device).
Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Max Reitz [Fri, 20 Dec 2013 18:28:13 +0000 (19:28 +0100)]
block: Allow recursive "file"s
It should be possible to use a format as a driver for a file which in
turn requires another file, i.e., nesting file formats.
Allowing nested file formats results in e.g. qcow2 BlockDriverStates
never being directly passed to bdrv_open_common() from bdrv_file_open(),
but instead being handed through bdrv_open(). This changes the error
message when trying to give a filename to qcow2, i.e. trying to use it
as a driver for the protocol level. Therefore, change the reference
output of I/O test 051 accordingly.
Signed-off-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Max Reitz [Fri, 20 Dec 2013 18:28:11 +0000 (19:28 +0100)]
block: Add bdrv_open_image()
Add a common function for opening images to be used for block drivers
specified through BlockdevRefs in an option QDict. The difference from
bdrv_file_open() is that this function may invoke bdrv_open() instead,
allowing auto-detection of the driver to be used; and second, it
automatically extracts the BlockdevRef from the option QDict.
Signed-off-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Max Reitz [Fri, 20 Dec 2013 18:28:10 +0000 (19:28 +0100)]
block: Allow block devices without files
blkdebug and blkverify will, in order to retain compatibility, not
support the field "file" implicitly through bdrv_open(). In order to be
able to use those drivers without giving a filename anyway, it is
necessary to be able to have block devices without files implicitly
opened by bdrv_open(). This is the case, if there was neither a file
name, a reference to an existing block device to use as a file nor
options specific to the file.
Signed-off-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Max Reitz [Fri, 20 Dec 2013 18:28:06 +0000 (19:28 +0100)]
blkdebug: Always call read_config()
Move the check whether there actually is a config file into the
read_config() function.
Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Max Reitz [Fri, 20 Dec 2013 18:28:04 +0000 (19:28 +0100)]
qapi: extend qdict_flatten() for QLists
Reversing qdict_array_split(), qdict_flatten() should flatten QLists as
well by interpreting them as QDicts where every entry's key is its
index.
This allows bringing QDicts with QLists from QMP commands to the same
form as they would be given as command-line options, thereby allowing
them to be parsed the same way.
Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Max Reitz [Fri, 20 Dec 2013 18:28:03 +0000 (19:28 +0100)]
qdict: Add qdict_array_split()
This function splits a QDict consisting of entries prefixed by
incrementally enumerated indices into a QList of QDicts.
Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Max Reitz [Fri, 20 Dec 2013 18:28:02 +0000 (19:28 +0100)]
blkdebug: Don't require sophisticated filename
If the filename is not prefixed by "blkdebug:" in
blkdebug_parse_filename(), the blkdebug driver was not selected through
that protocol prefix, but by an explicit command line option
(file.driver=blkdebug or something similar). Contrary to the current
reaction, this is not a problem at all; we just need to store the
filename (in the x-image option) and can go on; the user just has to
manually specify the config option.
Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Max Reitz [Fri, 20 Dec 2013 18:28:01 +0000 (19:28 +0100)]
blkdebug: Use errp for read_config()
Use an Error variable in the read_config() function.
Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Stefan Hajnoczi [Thu, 14 Nov 2013 10:54:17 +0000 (11:54 +0100)]
qemu-io: use readline.c
Use readline.c for command-line history. There was support for GNU
Readline and BSD Editline but it was never compiled in. Since QEMU has
its own readline.c, just use that when qemu-io runs with stdin attached
to a terminal.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Stefan Hajnoczi [Thu, 14 Nov 2013 10:54:14 +0000 (11:54 +0100)]
readline: decouple readline from the monitor
Make the readline.c functionality reusable. Instead of calling
monitor_printf() and monitor_flush() directly, invoke function pointers
provided by the user.
This way readline.c does not know about Monitor and other users will be
able to make use of readline.c.
Note that there is already an "opaque" argument to the ReadLineFunc
callback. Consistently call it "readline_opaque" from now on to
distinguish from the ReadLinePrintfFunc/ReadLineFlushFunc "opaque"
argument.
I also dropped the printf macro trickery since it's now highly unlikely
that anyone modifying readline.c would call printf(3) directly. We no
longer need this protection.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Stefan Hajnoczi [Mon, 6 Jan 2014 04:39:01 +0000 (12:39 +0800)]
docs: qcow2 compat=1.1 is now the default
Commit 9117b47717ad208b12786ce88eacb013f9b3dd1c ("qcow2: Change default
for new images to compat=1.1") changed the default qcow2 image format
version but forgot to update qemu-doc.texi and qemu-img.texi.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Kewei Yu [Mon, 6 Jan 2014 06:05:24 +0000 (14:05 +0800)]
qtest: Fix the bug about disable vnc causes "make check" fail
When we disable vnc from "./configure", QEMU can't use the vnc option.
So qtest can't use the "vnc -none ", otherwise "make check" fails.
If QEMU uses "-display none", "-vnc none" is excrescent, So we just need to drop it.
Signed-off-by: Kewei Yu <keweihk@gmail.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Liu Yuan [Fri, 3 Jan 2014 12:13:12 +0000 (20:13 +0800)]
sheepdog: fix clone operation by 'qemu-img create -b'
We should pass base_inode->vdi_id to base_vdi_id of SheepdogVdiReq so that sheep
can create a clone instead a fresh volume.
This fixes following command:
qemu-create -b sheepdog:base sheepdog:clone
so users can boot sheepdog:clone as a normal volume.
Cc: qemu-devel@nongnu.org Cc: Kevin Wolf <kwolf@redhat.com> Cc: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Liu Yuan <namei.unix@gmail.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Bharata B Rao [Sat, 21 Dec 2013 09:21:26 +0000 (14:51 +0530)]
gluster: Add support for creating zero-filled image
GlusterFS supports creation of zero-filled file on GlusterFS volume
by means of an API called glfs_zerofill(). Use this API from QEMU to
create an image that is filled with zeroes by using the preallocation
option of qemu-img.
The allowed values for preallocation are 'full' and 'off'. By default
preallocation is off and image is not zero-filled.
glfs_zerofill() offloads the writing of zeroes to the server and if
the storage supports SCSI WRITESAME, GlusterFS server can issue
BLKZEROOUT ioctl to achieve the zeroing.
Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Bharata B Rao [Sat, 21 Dec 2013 09:21:25 +0000 (14:51 +0530)]
gluster: Implement .bdrv_co_write_zeroes for gluster
Support .bdrv_co_write_zeroes() from gluster driver by using GlusterFS API
glfs_zerofill() that off-loads the writing of zeroes to GlusterFS server.
Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Bharata B Rao [Sat, 21 Dec 2013 09:21:24 +0000 (14:51 +0530)]
gluster: Convert aio routines into coroutines
Convert the read, write, flush and discard implementations from aio-based
ones to coroutine based ones.
Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Peter Lieven [Fri, 20 Dec 2013 09:02:47 +0000 (10:02 +0100)]
block/iscsi: return -ENOMEM if an async call fails immediately
if an async libiscsi call fails directly it can only be due
to an out of memory condition. All other errors are returned
through the callback.
Signed-off-by: Peter Lieven <pl@kamp.de> Reviewed-by: Ronnie Sahlberg <ronniesahlberg@gmail.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Fam Zheng [Tue, 26 Nov 2013 06:40:33 +0000 (14:40 +0800)]
qemu-iotests: Add _unsupported_imgopts for vmdk subformats
Some cases are not applicable for vmdk subformats those don't support
certain features, e.g. backing file, and some others can't run on
mult-file image, e.g. monolithicFlat. This adds declaration in test
cases to skip them automatically, so that iotests on vmdk can go
more smoothly (without manually picking of cases for each subformat).
Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Stefan Hajnoczi [Thu, 5 Dec 2013 15:38:33 +0000 (16:38 +0100)]
rbd: switch from pipe to QEMUBH completion notification
rbd callbacks are called from non-QEMU threads. Up until now a pipe was
used to signal completion back to the QEMU iothread.
The pipe writer code handles EAGAIN using select(2). The select(2) API
is not scalable since fd_set size is static. FD_SET() can write beyond
the end of fd_set if the file descriptor number is too high. (QEMU's
main loop uses poll(2) to avoid this issue with select(2).)
Since the pipe itself is quite clumsy to use and QEMUBH is now
thread-safe, just schedule a BH from the rbd callback function. This
way we can simplify I/O completion in addition to eliminating the
potential FD_SET() crash when file descriptor numbers become too high.
Crash scenario: QEMU already has 1024 file descriptors open. Hotplug an
rbd drive and get the pipe writer to take the select(2) code path.
Reviewed-by: Josh Durgin <josh.durgin@inktank.com> Tested-by: Josh Durgin <josh.durgin@inktank.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
The original implementation before this patch makes abortive error
messages much more friendly. The underlying bug that required this
change is now fixed. Revert.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
The recent addition of util/error.c's dependency on error_report()
causes this test to fail to link due to a number of missing monitor
related symbols. All these symbols are however defined by libqemustub.
Add this libary to the link.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Sebastian Huber [Wed, 27 Nov 2013 07:50:11 +0000 (08:50 +0100)]
SPARC: Fix LEON3 power down instruction
Synchronize the program counter before the power down helper call
otherwise interrupts will return to the wrong context.
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de> Reviewed-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
error: Don't use error_report() for assertion msgs.
Use fprintf(stderr instead. This removes dependency of libqemuutil.a
on the monitor.
We can further justify this change, in that this code path should only
trigger under a fatal error condition. fprintf-stderr is probably the
appropriate medium as under a fatal error conidition the monitor itself
may be down and out for the count. So assertion failure messages should
go lowest common denominator - straight to stderr.
Fixes the build as reported by Kevin Wolf. Issue debugged and change
suggested by Luiz Capitulino. Issue introduced by 5d24ee70bcbcf578614193526bcd5ed30a8eb16c.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Alistair Francis [Mon, 13 Jan 2014 03:35:26 +0000 (13:35 +1000)]
Microblaze: Convert Microblaze-pic handling to GPIOs
This patch uses inbound GPIO lines (IRQ and FIR) for
interrupts instead of using the old pic_cpu method,
which doesn't correspond to real hardware.
This creates the CPU's inbound IRQ and FIR GPIO lines and
updates the Microblaze boards to use this new method.
Signed-off-by: Alistair Francis <alistair.francis@xilinx.com> Suggested-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Reveiwed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Tested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Peter Maydell [Mon, 13 Jan 2014 10:26:16 +0000 (10:26 +0000)]
target-arm: Switch ARMCPUInfo arrays to use terminator entries
Switch the ARMCPUInfo arrays in cpu.c and cpu64.c to use a terminator
entry rather than looping based on ARRAY_SIZE. The latter causes
compile warnings on some versions of gcc if the configure options
happen to result in an empty array.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Tested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
# gpg: Signature made Mon 13 Jan 2014 09:38:27 AM PST using RSA key ID 5872D723
# gpg: Can't check signature: public key not found
* quintela/tags/migration/20140113: (49 commits)
migration: synchronize memory bitmap 64bits at a time
ram: split function that synchronizes a range
memory: syncronize kvm bitmap using bitmaps operations
memory: move bitmap synchronization to its own function
kvm: refactor start address calculation
kvm: use directly cpu_physical_memory_* api for tracking dirty pages
memory: unfold memory_region_test_and_clear()
memory: split cpu_physical_memory_* functions to its own include
memory: cpu_physical_memory_set_dirty_tracking() should return void
memory: make cpu_physical_memory_reset_dirty() take a length parameter
memory: s/dirty/clean/ in cpu_physical_memory_is_dirty()
memory: cpu_physical_memory_clear_dirty_range() now uses bitmap operations
memory: cpu_physical_memory_set_dirty_range() now uses bitmap operations
memory: use find_next_bit() to find dirty bits
memory: s/mask/clear/ cpu_physical_memory_mask_dirty_range
memory: cpu_physical_memory_get_dirty() is used as returning a bool
memory: make cpu_physical_memory_get_dirty() the main function
memory: unfold cpu_physical_memory_set_dirty_flag()
memory: unfold cpu_physical_memory_set_dirty() in its only user
memory: unfold cpu_physical_memory_clear_dirty_flag() in its only user
...
Message-id: 1389634834-24181-1-git-send-email-quintela@redhat.com Signed-off-by: Anthony Liguori <aliguori@amazon.com>
Juan Quintela [Thu, 10 Oct 2013 09:49:53 +0000 (11:49 +0200)]
memory: make cpu_physical_memory_reset_dirty() take a length parameter
We have an end parameter in all the callers, and this make it coherent
with the rest of cpu_physical_memory_* functions, that also take a
length parameter.
Once here, move the start/end calculation to
tlb_reset_dirty_range_all() as we don't need it here anymore.
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Orit Wasserman <owasserm@redhat.com>
Juan Quintela [Tue, 17 Dec 2013 11:12:24 +0000 (12:12 +0100)]
bitmap: use long as index
Move index and size fields from int to long. We need that for
migration. long is 64 bits on sane architectures, and 32bits should
be enough on all the 32bits architectures.
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Orit Wasserman <owasserm@redhat.com>
projects / qemu-upstream-4.6-testing.git / log