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The sr_f variable is only used for the l.bf and l.bnf instructions.
For clarity the code is also rewritten using a switch statement instead
of if chaining.
Signed-off-by: Sebastian Macke <sebastian@macke.de>
Reviewed-by: Jia Liu <proljc@gmail.com>
Signed-off-by: Jia Liu <proljc@gmail.com>
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The OpenRISC architecture does not have its own move register
instruction. Instead it uses either "l.addi rd, r0, x" or
"l.ori rd, rs, 0" or "l.or rd, rx, r0"
The l.ori instruction is automatically optimized but not the l.addi instruction.
This patch optimizes for this special case.
Signed-off-by: Sebastian Macke <sebastian@macke.de>
Reviewed-by: Jia Liu <proljc@gmail.com>
Signed-off-by: Jia Liu <proljc@gmail.com>
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# By Peter Lieven
# Via Juan Quintela
* quintela/migration.next:
migration: drop MADVISE_DONT_NEED for incoming zero pages
Message-id: 1384878412-23521-1-git-send-email-quintela@redhat.com
Signed-off-by: Anthony Liguori <aliguori@amazon.com>
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The madvise for zeroed out pages was introduced when every transferred
zero page was memset to zero and thus allocated. Since commit
211ea740 we check for zeroness of a target page before we memset
it to zero. Additionally we memmap target memory so it is essentially
zero initialized (except for e.g. option roms and bios which are loaded
into target memory although they shouldn't).
It was reported recently that this madvise causes a performance degradation
in some situations. As the madvise should only be called rarely and if it's called
it is likely on a busy page (it was non-zero and changed to zero during migration)
drop it completely.
Reported-By: Zhang Haoyu <haoyu.zhang@huawei.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Juan Quintela <quintela@redhat.com>
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# By Andreas Färber
# Via Stefan Hajnoczi
* stefanha/block:
qtest: Use -display none by default
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This avoids each test needing to add it to suppress windows popping up.
[Commit 7ceeedd016facf8d58e14a0d1417fa7225d71072 ("blockdev-test: add
test case for drive_add duplicate IDs") and commit
43cd209803d6cffb1e1a028c9ff2fd0ff4fce954 ("qdev-monitor-test: add
device_add leak test cases") added qtest tests without specifying
-display none.
As a result, "make check" now tries to use graphics (GTK or SDL). Since
graphics are not used by the test and inappropriate for headless "make
check" runs, add the missing -display none.
This fixes "make check" in the QEMU buildbot.
-- Stefan]
Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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staging
QOM infrastructure fixes for 1.7
* QOM memory leak fix
# gpg: Signature made Tue 19 Nov 2013 01:58:58 AM PST using RSA key ID 3E7E013F
# gpg: Can't check signature: public key not found
# By Vlad Yasevich
# Via Andreas Färber
* afaerber/tags/qom-devices-for-anthony:
qom: Fix memory leak in object_property_set_link()
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Save the result of the call to object_get_canonical_path()
so we can free it.
Cc: qemu-stable@nongnu.org
Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Reviewed-by: Amos Kong <akong@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
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# By Richard Henderson
# Via Richard Henderson
* rth/tcg-ia64-17:
tcg-ia64: Introduce tcg_opc_bswap64_i
tcg-ia64: Introduce tcg_opc_ext_i
tcg-ia64: Introduce tcg_opc_movi_a
tcg-ia64: Introduce tcg_opc_mov_a
tcg-ia64: Use A3 form of logical operations
tcg-ia64: Use SUB_A3 and ADDS_A4 for subtraction
tcg-ia64: Use ADDS for small addition
tcg-ia64: Avoid unnecessary stop bit in tcg_out_alu
tcg-ia64: Move AREG0 to R32
tcg-ia64: Simplify brcond
tcg-ia64: Handle constant calls
tcg-ia64: Use shortcuts for nop insns
tcg-ia64: Use TCGMemOp within qemu_ldst routines
Message-id: 1384811395-7097-1-git-send-email-rth@twiddle.net
Signed-off-by: Anthony Liguori <aliguori@amazon.com>
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Acked-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
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Being able to "extend" from 64-bits (with a mov) simplifies
a few places where the conditional breaks the train of thought.
Acked-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
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Acked-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
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Acked-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
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We can and/or/xor/andcm small constants, saving one cycle.
Acked-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
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We can subtract from more small constants that just 0 with one insn,
and we can add the negative for most small constants.
Acked-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
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Avoids a wasted cycle loading up small constants.
Simplify the code assuming the tcg optimizer is going to work
and don't expect the first operand of the add to be constant.
Acked-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
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When performing an operation with two input registers, we'd leave
the stop bit (and thus an extra cycle) that's only needed when one
or the other input is a constant.
Acked-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
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Since the move away from the global areg0, we're no longer globally
reserving areg0. Which means our use of R7 clobbers a call-saved
register. Shift areg0 into the windowed registers. Indeed, choose
the incoming parameter register that it comes to us by.
This requires moving the register holding the return address elsewhere.
Choose R33 for tidiness.
Acked-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
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There was a misconception that a stop bit is required between a compare
and the branch that uses the predicate set by the compare. This lead to
the usage of an extra bundle in which to perform the compare. The extra
bundle left room for constants to be loaded for use with the compare insn.
If we pack the compare and the branch together in the same bundle, then
there's no longer any room for non-zero constants. At which point we
can eliminate half the function by not handling them.
Acked-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
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Using only indirect calls results in 3 bundles (one to load the
descriptor address), and 4 stop bits. By looking through the
descriptor to the constants, we can perform the call with 2
bundles and only 1 stop bit.
Acked-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
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There's no need to go through the full opcode-to-insn function call
to generate nops. This makes the source a bit more readable.
Acked-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
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Acked-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
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pc last minute fixes for 1.8
This has a patch that drops an unused FW CFG entry.
I think it's best to include it before 1.7 to avoid
the need to maintain it in compat machine types.
There's also a doc bugfix by Amos: I'm guessing
doc fixes are still fair game even at this late stage.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Mon 18 Nov 2013 03:48:14 AM PST using RSA key ID D28D5469
# gpg: Can't check signature: public key not found
# By Amos Kong (1) and Igor Mammedov (1)
# Via Michael S. Tsirkin
* mst/tags/for_anthony:
doc: fix hardcoded helper path
pc: disable pci-info
Message-id: 1384775449-6693-1-git-send-email-mst@redhat.com
Signed-off-by: Anthony Liguori <aliguori@amazon.com>
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The install directory of qemu-bridge-helper is configurable,
but we use a fixed path in the documentation.
DEFAULT_BRIDGE_HELPER macro isn't available in texi mode,
we should always use "/path/to/" prefix for dynamic paths
(e.g.: /path/to/image, /path/to/linux, etc).
Signed-off-by: Amos Kong <akong@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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The BIOS that we ship in 1.7 does not use pci info
from host and so far isn't going to use it.
Taking in account problems it caused see 9604f70fdf and
to avoid future incompatibility issues, it's safest to
disable that interface by default for all machine types
including 1.7 as it was never exposed/used by guest.
And properly remove/cleanup it during 1.8 development cycle.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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# By Jan Krupa (4) and others
# Via Michael Tokarev
* mjt/trivial-patches:
hw/i386/Makefile.obj: use $(PYTHON) to run .py scripts consistently
configure: Use -B switch only for Python versions which support it
qga: Fix shutdown command of guest agent to work with SysV
console: Remove unused debug code
qga: Fix compilation for old versions of MinGW
.travis.yml: basic compile and check recipes
pci-assign: Fix error_report of pci-stub message
qapi: Fix comment for create-type to match code.
vl: fix build when configured with no graphic support
usb: drop unused USBNetState.inpkt field
qemu-char: add missing characters used in keymaps
qemu-char: add support for U-prefixed symbols
qemu-char: add Czech keymap file
qemu-char: add Czech characters to VNC keysyms
Message-id: 1384684850-6777-1-git-send-email-mjt@msgid.tls.msk.ru
Signed-off-by: Anthony Liguori <aliguori@amazon.com>
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$(PYTHON) is a Make variable which is set by configure.
In all other places over the tree, .py files are run from
Makefiles using this variable, except of a single leftover
in hw/i386/Makefile.obj (and a nearby place in there uses
$(PYTHON) correctly). Fix this leftover too.
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Cc: Luigi Rizzo <rizzo@iet.unipi.it>
Reviewed-by:: Stefan Weil <sw@weilnetz.de>
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Commit 1d984a67a95d88f3e708b077dab8adeb47c38c93 added the -B switch
unconditionally. This breaks Python versions before 2.6 which don't
support that switch.
Now configure adds -B only if it is accepted by the Python interpreter.
This modification introduces a small incompatibility because -B might now
also be added when configure was called with --python=PYTHON_INTERPRETER.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
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For now guest agent uses following command to shutdown system:
shutdown -P +0 "blabla"
but this syntax works only with shutdown command from systemd or upstart,
because SysV shutdown requires -h switch.
Following patch changes the command so it works with systemd, upstart and SysV
With upstart/systemd qga use one of thee commands, depending on 'mode' parameter:
shutdown -P +0 "..."
shutdown -H +0 "..."
shutdown -r +0 "..."
SysV equivalents for these are:
shutdown -h -P +0 "..."
shutdown -h -H +0 "..."
shutdown -h -r +0 "..."
and these retain their meaning with upstart/systemd.
According to FreeBSD manpages, shutdown does not accept -P and -H options. Commands should be:
shutdown -p +0 "..."
shutdown -h +0 "..."
shutdown -r +0 "..."
shutdown in Solaris does not accept any of -hHpPr and does not accept time in "+0" format
Signed-off-by: Michael Avdienko <whitearchey@gmail.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
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The local function console_print_text_attributes is no longer used since
commit 7d6ba01c3741bc32ae252bf64a5fd3f930c2df4f.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
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While MinGW-w64 can compile the qga code, MinGW from Debian lenny
(gcc-mingw32 4.4.2-3) shows these errors:
In file included from qga/vss-win32.c:17:
qga/vss-win32/requester.h:31:
error: expected »=«, »,«, »;«, »asm« or »__attribute__« before »requester_init«
qga/vss-win32/requester.h:32:
error: expected »=«, »,«, »;«, »asm« or »__attribute__« before »requester_deinit«
The macro STDAPI is unknown, so add the missing include file which
defines it.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
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This adds a build matrix definition for travis-ci.org continuous
integration service. It is usable on any public repository hosted on
GitHub. Once you have created an account signed into Travis you can
enable it on selected projects via travis-ci.org/profile. Alternatively
you can configure the service hooks on GitHub via the repository
Settings tab,then Service Hooks and selecting Travis.
Once setup Travis will automatically test every push as well as any pull
requests submitted to that repository.
The build matrix is currently split by target architecture (see TARGETS
environment variable) because a full build of QEMU can take some time.
This way you get quick feedback for any obvious errors. The additional
environment variables exist to allow additional builds to tweak the
environment. These are:
EXTRA_CONFIG - extra terms passed to configure
EXTRA_PKGS - extra dev packages to install
TEST_CMD - default "make check", can be overridden
I've confined the additional stuff to x86/x86_64 for convenience.
As Travis supports clang the main builds are done twice (once for gcc
and once for clang). However clang is disabled for the debug/trace
builds for the purposes of brevity.
Other wrinkles:
* The lttng user-space tracing back-end is disabled
(it is currently horribly broken)
* The ftrace back-end doesn't run "make check"
(it requires a mounted debugfs to work)
* There are two debug enabled build (with and without TCG interpreter)
Signed-off-by: Alex Bennée <alex@bennee.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
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Using multiple calls to error_report here means every line is
prefaced with the (potentially long) pci-assign command line
arguments.
Use a single error_printf to preserve the intended formatting.
Since this code path is always preceded by an error_report call,
we don't lose the command line reporting.
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
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Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
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The following error occurs when building with no graphic output support:
vl.c: In function ‘main’:
vl.c:2829:19: error: variable ‘ds’ set but not used [-Werror=unused-but-set-variable]
DisplayState *ds;
^
cc1: all warnings being treated as errors
To reproduce this issue, just run:
$ ./configure \
--disable-curses \
--disable-sdl \
--disable-cocoa \
--disable-gtk \
--disable-vnc \
--enable-werror
$ make vl.o
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
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Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Benoit Canet <benoit@irqsave.net>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
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This patch adds all missing characters used in regional keymap
files which already exist in QEMU. I checked for the missing
characters by going through all of the keymaps and matching that
with records in vnc_keysym.h. If the key wasn't found I looked
it up in libxkbcommon library [1]. If I understood it correctly
this is also the same place where most of the keymaps were
exported from according to the comment on the first line in those
files. I was able to find all symbols except "quotebl" used
in Netherland keymap.
I tested this update with Czech keyboard by myself. I also asked
Matej Serc to test Slovenian keyboard layout - he reported problems
with it few days ago on this mailing list. Both layouts seems
to work fine. I wasn't able to test the remaining layouts but
since this change doesn't modify any existing symbols, just adds
new ones, I don't expect any sideeffects.
[1] http://cgit.freedesktop.org/xorg/lib/libxkbcommon
Signed-off-by: Jan Krupa <jkrupa@suse.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
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This patch adds support for Unicode symbols in keymap files. This
feature was already used in some keyboard layouts in QEMU generated
from XKB (e.g. Arabic) but it wasn't implemented in QEMU source code.
There is no need for check of validity of the hex string after U character
because strtol returns 0 in case the conversion was unsuccessful.
Signed-off-by: Jan Krupa <jkrupa@suse.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
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This patch adds Czech keyboard layout to available keymap files
and Makefile.
Signed-off-by: Jan Krupa <jkrupa@suse.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
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This patch adds missing Czech characters to the VNC keysym table.
Signed-off-by: Jan Krupa <jkrupa@suse.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
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Block fixes for 1.7.0
# gpg: Signature made Fri 15 Nov 2013 09:51:25 AM PST using RSA key ID C88F2FD6
# gpg: Can't check signature: public key not found
# By Max Reitz (3) and others
# Via Kevin Wolf
* kwolf/tags/for-anthony:
block: Fail if requested driver is not available
MAINTAINERS: add block driver sub-maintainers
qemu-img: Fix overwriting 'ret' before using
qemu-iotests: Test qcow2 count_contiguous_clusters()
qcow2: fix possible corruption when reading multiple clusters
qmp: access the local QemuOptsLists for drive option
MAINTAINERS: add block tree repo URLs
qemu-iotests: Extend 041 for unbacked mirroring
block/drive-mirror: Check for NULL backing_hd
qapi-schema: Update description for NewImageMode
block: Print its file name if backing file opening failed
Message-id: 1384537999-5972-1-git-send-email-kwolf@redhat.com
Signed-off-by: Anthony Liguori <aliguori@amazon.com>
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If an explicit driver option is present, but doesn't specify a valid
driver, then bdrv_open() should fail instead of probing the format.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
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There are a number of contributors who maintain block drivers (image
formats and protocols). They should be listed in the MAINTAINERS file
so that get_maintainer.pl lists them.
Note that commits are still merged through Kevin or Stefan's block tree
but the block driver sub-maintainers are usually the ones to review
patches.
Acked-by: Kevin Wolf <kwolf@redhat.com>
Acked-by: Richard W.M. Jones <rjones@redhat.com>
Acked-by: Stefan Weil <sw@weilnetz.de>
Acked-by: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Jeff Cody <jcody@redhat.com>
Acked-by: Anthony Liguori <aliguori@amazon.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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This patch moves ret assignment after reporting original error.
We were lucky to pass qemu-iotests 048 (qemu-img compare case) but when
I tried to run with TEST_DIR=/tmp (tmpfs), it fails with a "wrong"
mismatch offset. This fixes two bugs.
In the first if branch, setting ret to 1 before using it makes dead code
in the next line: pnum is never added to mismatch offset even if ret was
0.
In the other if branch, currently the output error is always -4:
strerror(-4) -> Unknown error -4
Added regression test in case 048.
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Amos Kong <akong@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
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if multiple sectors spanning multiple clusters are read the
function count_contiguous_clusters should ensure that the
cluster type should not change between the clusters.
Especially the for-loop should break when we have one
or more normal clusters followed by a compressed cluster.
Unfortunately the wrong macro was used in the mask to
compare the flags.
This was discovered while debugging a data corruption
issue when converting a compressed qcow2 image to raw.
qemu-img reads 2MB chunks which span multiple clusters.
CC: qemu-stable@nongnu.org
Signed-off-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Currently we have three QemuOptsList (qemu_common_drive_opts,
qemu_legacy_drive_opts, and qemu_drive_opts), only qemu_drive_opts
is added to vm_config_groups[].
This patch changes query-command-line-options to access three local
QemuOptsLists for drive option, and merge the description items
together.
Signed-off-by: Amos Kong <akong@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Add a new test case in file 041 for mirroring unbacked images in
"absolute-paths" mode. This should work, if possible, but most
importantly, qemu should never crash.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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It should be possible to execute the QMP "drive-mirror" command in
"none" sync mode and "absolute-paths" mode even for block devices
lacking a backing file.
"absolute-paths" does in fact not require a backing file to be present,
as can be seen from the "top" sync mode code path. "top" basically
states that the device should indeed have a backing file - however, the
current code catches the case if it doesn't and then simply treats it as
"full" sync mode, creating a target image without a backing file (in
"absolute-paths" mode). Thus, "absolute-paths" does not imply the target
file must indeed have a backing file.
Therefore, the target file may be left unbacked in case of "none" sync
mode as well, if the specified device is not backed either. Currently,
qemu will crash trying to dereference the backing file pointer since it
assumes that it will always be non-NULL in that case ("none" with
"absolute-paths").
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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