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2014-05-09block: qemu-iotests - update 085 to use common.qemuJeff Cody
The new functionality of common.qemu implements the QEMU control and communication functionality that was originally in test 085. This removes that now-duplicate functionality, and uses the common.qemu functions. The QEMU commandline changes slightly due to this; in addition to monitor and qmp i/o options, the new QEMU commandline from inside common.qemu now introduces -machine accel=qtest. Reviewed-by: Benoit Canet <benoit@irqsave.net> Reviewed-by: Fam Zheng <famz@redhat.com> Signed-off-by: Jeff Cody <jcody@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-05-09block: qemu-iotests - add common.qemu, for bash-controlled qemu testsJeff Cody
This creates some common functions for bash language qemu-iotests to control, and communicate with, a running QEMU process. 4 functions are introduced: 1. _launch_qemu() This launches the QEMU process(es), and sets up the file descriptors and fifos for communication. You can choose to launch each QEMU process listening for either QMP or HMP monitor. You can call this function multiple times, and save the handle returned from each. The returned handle is in $QEMU_HANDLE. You must copy this value. Commands 2 and 3 use the handle received from _launch_qemu(), to talk to the appropriate process. 2. _send_qemu_cmd() Sends a command string, specified by $2, to QEMU. If $3 is non-NULL, _send_qemu_cmd() will wait to receive $3 as a required result string from QEMU. Failure to receive $3 will cause the test to fail. The command can optionally be retried $qemu_cmd_repeat number of times. Set $qemu_error_no_exit to not force the test the fail on exit; in this case, $QEMU_STATUS[$1] will be set to -1 on failure. 3. _timed_wait_for() Waits for a response, for up to a default of 10 seconds. If $2 is not seen in that time (anywhere in the response), then the test fails. Primarily used by _send_qemu_cmd, but could be useful standalone, as well. To prevent automatic exit (and therefore test failure), set $qemu_error_no_exit to a non-NULL value. If $silent is a non-NULL value, then output to stdout will be suppressed. 4. _cleanup_qemu() Kills the running QEMU processes, and removes the fifos. Signed-off-by: Jeff Cody <jcody@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-05-09block/raw-posix: Try both FIEMAP and SEEK_HOLEMax Reitz
The current version of raw-posix always uses ioctl(FS_IOC_FIEMAP) if FIEMAP is available; lseek with SEEK_HOLE/SEEK_DATA are not even compiled in in this case. However, there may be implementations which support the latter but not the former (e.g., NFSv4.2) as well as vice versa. To cover both cases, try FIEMAP first (as this will return -ENOTSUP if not supported instead of returning a failsafe value (everything allocated as a single extent)) and if that does not work, fall back to SEEK_HOLE/SEEK_DATA. Signed-off-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-05-09gluster: Correctly propagate errors when volume isn't accessiblePeter Krempa
The docs for glfs_init suggest that the function sets errno on every failure. In fact it doesn't. As other functions such as qemu_gluster_open() in the gluster block code report their errors based on this fact we need to make sure that errno is set on each failure. This fixes a crash of qemu-img/qemu when a gluster brick isn't accessible from given host while the server serving the volume description is. Thread 1 (Thread 0x7ffff7fba740 (LWP 203880)): #0 0x00007ffff77673f8 in glfs_lseek () from /usr/lib64/libgfapi.so.0 #1 0x0000555555574a68 in qemu_gluster_getlength () #2 0x0000555555565742 in refresh_total_sectors () #3 0x000055555556914f in bdrv_open_common () #4 0x000055555556e8e8 in bdrv_open () #5 0x000055555556f02f in bdrv_open_image () #6 0x000055555556e5f6 in bdrv_open () #7 0x00005555555c5775 in bdrv_new_open () #8 0x00005555555c5b91 in img_info () #9 0x00007ffff62c9c05 in __libc_start_main () from /lib64/libc.so.6 #10 0x00005555555648ad in _start () Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-05-09vl.c: remove init_clocks call from mainKirill Batuzov
Clocks are initialized in qemu_init_main_loop. They are not needed before it. Initializing them twice is not only unnecessary but is harmful: it results in memory leak and potentially can lead to a situation where different parts of QEMU use different sets of timers. To avoid it remove init_clocks call from main and add an assertion to qemu_clock_init that corresponding clock has not been initialized yet. Signed-off-by: Kirill Batuzov <batuzovk@ispras.ru> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-05-09block: Fix open flags with BDRV_O_SNAPSHOTKevin Wolf
The immediately visible effect of this patch is that it fixes committing a temporary snapshot to its backing file. Previously, it would fail with a "permission denied" error because bdrv_inherited_flags() forced the backing file to be read-only, ignoring the r/w reopen of bdrv_commit(). The bigger problem this revealed is that the original open flags must actually only be applied to the temporary snapshot, and the original image file must be treated as a backing file of the temporary snapshot and get the right flags for that. Reported-by: Jan Kiszka <jan.kiszka@web.de> Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-05-09qemu-iotests: Test converting to streamOptimized from small cluster sizeFam Zheng
Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-05-09vmdk: Implement .bdrv_get_info()Fam Zheng
This will return cluster_size and needs_compressed_writes to caller, if all the extents have the same value (or there's only one extent). Otherwise return -ENOTSUP. cluster_size is only reported for sparse formats. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-05-09vmdk: Implement .bdrv_write_compressedFam Zheng
Add a wrapper function to support "compressed" path in qemu-img convert. Only support streamOptimized subformat case for now (num_extents == 1 and extent compression is true). Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-05-09qemu-img: Convert by cluster size if target is compressedFam Zheng
If target block driver forces compression, qemu-img convert needs to write by cluster size as well as "-c" option. Particularly, this applies for converting to VMDK streamOptimized format. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-05-09block/iscsi: bump year in copyright noticePeter Lieven
Signed-off-by: Peter Lieven <pl@kamp.de> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-05-09block/nfs: Check for NULL server partMax Reitz
After the URL has been parsed make sure the server part is valid in order to avoid a segmentation fault when calling nfs_mount(). Signed-off-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-05-09qemu-img: sort block formats in help messageMike Day
The help message for qemu-img lists the supported block formats, of which there are 27 as of version 2.0.50. The formats are printed in the order of their driver's position in a linked list, which appears random. This patch prints the formats in sorted order, making it easier to read and to find a specific format in the list. [Added suggestions from Fam Zheng <famz@redhat.com> to declare variables at the top of the scope in help() and to omit explicit cast for void* opaque. --Stefan] Signed-off-by: Mike Day <ncmike@ncultra.org> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-05-09iotests: Use configured pythonMax Reitz
Currently, QEMU's iotests rely on /usr/bin/env to start the correct Python (that is, at least Python 2.4, but not 3). On systems where Python 3 is the default, the user has no clean way of making the iotests use the correct binary. This commit makes the iotests use the Python selected by configure. Signed-off-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-05-09qcow2: Fix alloc_clusters_noref() overflow detectionMax Reitz
If the very first allocation has a length of 0, the free_cluster_index is still 0 after the for loop, which means that subtracting one from it will underflow and signal an invalid range of clusters by returning -EFBIG. However, there is no such range, as its length is 0. Fix this by preventing underflows on free_cluster_index during the check. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-05-08Merge remote-tracking branch 'remotes/stefanha/tags/tracing-pull-request' ↵Peter Maydell
into staging Tracing pull request # gpg: Signature made Wed 07 May 2014 18:14:02 BST using RSA key ID 81AB73C8 # gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" # gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>" * remotes/stefanha/tags/tracing-pull-request: configure: Show trace output file conditionally trace: [tracetool] Minimize the amount of per-backend code trace: [simple] Bump up log version number trace: [tracetool] Change format docs to point to the generated file trace: [tracetool] Show list of frontends and backends sorted by name trace: [tracetool] Cosmetic changes trace: [tracetool] Spacing changes trace: [tracetool] Add methods 'Event.copy' and 'Arguments.copy' trace: [tracetool] Add method 'Event.api' to build event names Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-05-08Merge remote-tracking branch 'remotes/spice/tags/pull-spice-7' into stagingPeter Maydell
spice: small fixes # gpg: Signature made Thu 08 May 2014 09:50:21 BST 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/spice/tags/pull-spice-7: spice: fix libvirt snapshots spice: fix "info spice" Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-05-08spice: fix libvirt snapshotsGerd Hoffmann
Only notify spice-server about migration events in case we got target host information beforehand. So we kick the seamless spice client migration only in case a actual live migration happens, not when libvirt uses live-migration-to-file for snapshotting. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-05-08spice: fix "info spice"Gerd Hoffmann
In case no listening address was specified, "info spice" reports "0.0.0.0" as address. Which is incorrect in case spice is listening on ipv6. Replace it by a wildcard "*" to indicate it is not limited to a specific address. Note: Being more specific is not possible without extending the spice-server api. The socket is handled by spice-server not qemu, so qemu can't easily figure the actual socket address. Reported-by: David Jaša <djasa@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-05-07Merge remote-tracking branch 'remotes/mjt/tags/trivial-patches-2014-05-07' ↵Peter Maydell
into staging trivial patches for 2014-05-07 # gpg: Signature made Wed 07 May 2014 18:01:15 BST using RSA key ID A4C3D7DB # gpg: Good signature from "Michael Tokarev <mjt@tls.msk.ru>" # gpg: aka "Michael Tokarev <mjt@corpit.ru>" # gpg: aka "Michael Tokarev <mjt@debian.org>" # gpg: WARNING: This key is not certified with a trusted signature! # gpg: There is no indication that the signature belongs to the owner. # Primary key fingerprint: 6EE1 95D1 886E 8FFB 810D 4324 457C E0A0 8044 65C5 # Subkey fingerprint: 6F67 E18E 7C91 C5B1 5514 66A7 BEE5 9D74 A4C3 D7DB * remotes/mjt/tags/trivial-patches-2014-05-07: (21 commits) libcacard: remove unnecessary EOL from debug prints docs/memory.txt: Fix document on MMIO operations readline: Sort completions before printing them. readline: use g_strndup instead of open-coding it qmp: report path ambiguity error libcacard: replace pstrcpy() with memcpy() glib: move g_poll() replacement into glib-compat.h do not call g_thread_init() for glib >= 2.31 hw/9pfs: Add include file for exported symbol xen: remove unused global, xen_xcg hw: Add missing 'static' attributes qemu-timer: Add missing 'static' attribute ui: Add missing 'static' attribute monitor: Add missing 'static' attribute hw/s390x: Add missing 'static' attribute hw/mips: Add missing 'static' and 'const' attributes hw/9pfs: Add missing 'static' attributes arch_init: Be sure of only one exit entry with DPRINTF() for ram_load() tests/tcg: Fix compilation of test_path qga: Fix typo (plural) in comment ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-05-07Merge remote-tracking branch 'remotes/sstabellini/xen-140507-2' into stagingPeter Maydell
* remotes/sstabellini/xen-140507-2: xen_disk: add discard support pass an inclusive address range to xc_domain_pin_memory_cacheattr xen: factor out common functions xen: move Xen HVM files under hw/i386/xen xen: move Xen PV machine files to hw/xenpv qemu-xen: free all the pirqs for msi/msix when driver unload exec: Limit translation limiting in address_space_translate to xen Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-05-07configure: Show trace output file conditionallyStefan Weil
It is only used with the simple trace backend. Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-05-07trace: [tracetool] Minimize the amount of per-backend codeLluís Vilanova
Backends now only contain the essential backend-specific code, and most of the work is moved to frontend code. Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-05-07trace: [simple] Bump up log version numberLluís Vilanova
The following tracetool cleanup changes the event numbering policy. Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-05-07trace: [tracetool] Change format docs to point to the generated fileLluís Vilanova
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-05-07trace: [tracetool] Show list of frontends and backends sorted by nameLluís Vilanova
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-05-07trace: [tracetool] Cosmetic changesLluís Vilanova
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-05-07trace: [tracetool] Spacing changesLluís Vilanova
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-05-07trace: [tracetool] Add methods 'Event.copy' and 'Arguments.copy'Lluís Vilanova
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-05-07trace: [tracetool] Add method 'Event.api' to build event namesLluís Vilanova
Makes it easier to ensure proper naming across the different frontends and backends. Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-05-07libcacard: remove unnecessary EOL from debug printsAlon Levy
Signed-off-by: Alon Levy <alevy@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-05-07docs/memory.txt: Fix document on MMIO operationsFam Zheng
.impl.valid should be .impl.unaligned and the description needs some fixes. .old_portio is removed since commit b40acf99b (ioport: Switch dispatching to memory core layer). Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-05-07readline: Sort completions before printing them.Hani Benhabiles
Signed-off-by: Hani Benhabiles <hani@linux.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-05-07readline: use g_strndup instead of open-coding itMichael Tokarev
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru> Reviewed-by: Andreas Färber <afaerber@suse.de>
2014-05-07qmp: report path ambiguity errorMichael Tokarev
Without this, ambiguous path is reported to the user as "not found", which is confusing at least. Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-05-07libcacard: replace pstrcpy() with memcpy()Michael Tokarev
Commit 2e679780ae86c6ca8 replaced strncpy() with pstrcpy() in one place in libcacard. This is a qemu-specific function, while libcacard is a stand-alone library (or tries to be). But since we know the exact length of the string to copy, and know that it definitely will fit in the destination buffer, use memcpy() instead, and null-terminate the string after that. An alternative is to use g_strlcpy() or strncpy(), but memcpy() is more than adequate in this place. Signed-off-by: Michael Tokarev <mjt@tls.msk.ru> Cc: qemu-trivial@nongnu.org Cc: Alon Levy <alevy@redhat.com>
2014-05-07glib: move g_poll() replacement into glib-compat.hStefan Hajnoczi
We have a dedicated header file for wrappers to smooth over glib version differences. Move the g_poll() definition into glib-compat.h for consistency. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru> Cc: qemu-trivial@nongnu.org
2014-05-07do not call g_thread_init() for glib >= 2.31Michael Tokarev
glib >= 2.31 always enables thread support and g_thread_supported() is #defined to 1, there's no need to call g_thread_init() anymore, and it definitely does not need to report error which never happens. Keep code for old < 2.31 glibc anyway for now, just #ifdef it differently. Signed-off-by: Michael Tokarev <mjt@tls.msk.ru> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Cc: qemu-trivial@nongnu.org
2014-05-07hw/9pfs: Add include file for exported symbolStefan Weil
Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-05-07xen: remove unused global, xen_xcgJim Meyering
Reviewed-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Jim Meyering <meyering@redhat.com> Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-05-07hw: Add missing 'static' attributesStefan Weil
This fixes warnings from the static code analysis (smatch). Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-05-07qemu-timer: Add missing 'static' attributeStefan Weil
This fixes a warning from the static code analysis (smatch). Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-05-07ui: Add missing 'static' attributeStefan Weil
There was already a forward declaration using 'static', but the attribute was missing in the implementation. This fixes a warning from the static code analysis (smatch). Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-05-07monitor: Add missing 'static' attributeStefan Weil
This fixes a warning from the static code analysis (smatch). Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-05-07hw/s390x: Add missing 'static' attributeStefan Weil
Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-05-07hw/mips: Add missing 'static' and 'const' attributesStefan Weil
This fixes a warning from the static code analysis (smatch). Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru> Acked-by: Aurelien Jarno <aurelien@aurel32.net>
2014-05-07hw/9pfs: Add missing 'static' attributesStefan Weil
Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-05-07arch_init: Be sure of only one exit entry with DPRINTF() for ram_load()Chen Gang
When DPRINTF() has effect, the original author wants to print all ram_load() calling results. So need use 'goto' instead of 'return' within ram_load(), just like other areas have done. Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-05-07tests/tcg: Fix compilation of test_pathPeter Maydell
The test_path binary is (unlike the other test binaries in tests/tcg) actually intended to be compiled with the same compiler used to build the main QEMU executables. It actually #includes a number of the QEMU source files in an attempt to unit-test the util/path.c functions, and so if it is not compiled with the same compiler used by configure to set CONFIG_ settings then it is liable to fail to build. Fix the makefile to build it with the default C compiler rules, not CC_I386, and fix the test itself not to include a lot of unnecessary trace related source files which cause the build to fail if the trace backend is anything other than 'simple'. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-05-07qga: Fix typo (plural) in commentStefan Weil
Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
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