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2017-07-04qemu-thread: Assert locks are initialized before usingFam Zheng2-1/+60
Not all platforms check whether a lock is initialized before used. In particular Linux seems to be more permissive than OSX. Check initialization state explicitly in our code to catch such bugs earlier. Signed-off-by: Fam Zheng <famz@redhat.com> Message-Id: <20170704122325.25634-1-famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-07-04main_loop: Make main_loop_wait() return voidPeter Maydell1-7/+1
The last users of main_loop_wait() that cared about the return value have now been changed to no longer use it. Drop the now-useless return value and make the function return void. We avoid the awkwardness of ifdeffery to handle the 'ret' variable in main_loop_wait() only being wanted if CONFIG_SLIRP by simply dropping all the ifdefs. There are stub implementations of slirp_pollfds_poll() and slirp_pollfds_fill() already in stubs/slirp.c which do nothing, as required. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Message-Id: <1498584769-12439-3-git-send-email-peter.maydell@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-07-04util/oslib-win32: Remove if conditionalAlistair Francis1-4/+2
The original ready < nhandles - 1 can be re-written as ready + 1 < nhandles. The check was actually incorrect because WAIT_OBJECT_0 was not subtracted from ready; it worked because WAIT_OBJECT_0 is zero. After subtracting WAIT_OBJECT_0, the result is the same condition that we are checking on the first itteration of the for loop. This means we can remove the if statement and let the for loop check the code. Signed-off-by: Alistair Francis <alistair.francis@xilinx.com> Message-Id: <a14083d681951f3999a0e9314605cb706381ae8d.1498756113.git.alistair.francis@xilinx.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-07-04sockets: avoid formatting buffer that may not be NUL terminatedDaniel P. Berrange1-1/+1
The 'sun_path' field in the sockaddr_un struct is not required to be NUL termianted, so when reporting an error, we must use the separate 'path' variable which is guaranteed terminated. Fixes a bug spotted by coverity that was introduced in commit ad9579aaa16d5b385922d49edac2c96c79bcfb62 Author: Daniel P. Berrange <berrange@redhat.com> Date: Thu May 25 16:53:00 2017 +0100 sockets: improve error reporting if UNIX socket path is too long Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Message-Id: <20170626103756.22974-1-berrange@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-22Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2017-06-09-v2' ↵Peter Maydell1-16/+8
into staging QAPI patches for 2017-06-09 # gpg: Signature made Tue 20 Jun 2017 13:31:39 BST # gpg: using RSA key 0x3870B400EB918653 # gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" # gpg: aka "Markus Armbruster <armbru@pond.sub.org>" # Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867 4E5F 3870 B400 EB91 8653 * remotes/armbru/tags/pull-qapi-2017-06-09-v2: (41 commits) tests/qdict: check more get_try_int() cases console: use get_uint() for "head" property i386/cpu: use get_uint() for "min-level"/"min-xlevel" properties numa: use get_uint() for "size" property pnv-core: use get_uint() for "core-pir" property pvpanic: use get_uint() for "ioport" property auxbus: use get_uint() for "addr" property arm: use get_uint() for "mp-affinity" property xen: use get_uint() for "max-ram-below-4g" property pc: use get_uint() for "hpet-intcap" property pc: use get_uint() for "apic-id" property pc: use get_uint() for "iobase" property acpi: use get_uint() for "pci-hole*" properties acpi: use get_uint() for various acpi properties acpi: use get_uint() for "acpi-pcihp-io*" properties platform-bus: use get_uint() for "addr" property bcm2835_fb: use {get, set}_uint() for "vcram-size" and "vcram-base" aspeed: use {set, get}_uint() for "ram-size" property pcihp: use get_uint() for "bsel" property pc-dimm: make "size" property uint64 ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-06-22Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20170619' into stagingPeter Maydell2-0/+186
Queued TCG patches # gpg: Signature made Mon 19 Jun 2017 19:12:06 BST # gpg: using RSA key 0xAD1270CC4DD0279B # gpg: Good signature from "Richard Henderson <rth7680@gmail.com>" # gpg: aka "Richard Henderson <rth@redhat.com>" # gpg: aka "Richard Henderson <rth@twiddle.net>" # Primary key fingerprint: 9CB1 8DDA F8E8 49AD 2AFC 16A4 AD12 70CC 4DD0 279B * remotes/rth/tags/pull-tcg-20170619: target/arm: Exit after clearing aarch64 interrupt mask target/s390x: Exit after changing PSW mask target/alpha: Use tcg_gen_lookup_and_goto_ptr tcg: Increase hit rate of lookup_tb_ptr tcg/arm: Use ldr (literal) for goto_tb tcg/arm: Try pc-relative addresses for movi tcg/arm: Remove limit on code buffer size tcg/arm: Use indirect branch for goto_tb tcg/aarch64: Use ADR in tcg_out_movi translate-all: consolidate tb init in tb_gen_code tcg: allocate TB structs before the corresponding translated code util: add cacheinfo Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-06-20qapi: merge QInt and QFloat in QNumMarc-André Lureau1-16/+8
We would like to use a same QObject type to represent numbers, whether they are int, uint, or floats. Getters will allow some compatibility between the various types if the number fits other representations. Add a few more tests while at it. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20170607163635.17635-7-marcandre.lureau@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> [parse_stats_intervals() simplified a bit, comment in test_visitor_in_int_overflow() tidied up, suppress bogus warnings] Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-06-19util: add cacheinfoEmilio G. Cota2-0/+186
Add helpers to gather cache info from the host at init-time. For now, only export the host's I/D cache line sizes, which we will use to improve cache locality to avoid false sharing. Suggested-by: Richard Henderson <rth@twiddle.net> Suggested-by: Geert Martin Ijewski <gm.ijewski@web.de> Tested-by: Geert Martin Ijewski <gm.ijewski@web.de> Signed-off-by: Emilio G. Cota <cota@braap.org> Message-Id: <1496794624-4083-1-git-send-email-cota@braap.org> [rth: Move all implementations from tcg/ppc/] Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-06-16util: add stats64 modulePaolo Bonzini2-0/+138
This module provides fast paths for 64-bit atomic operations on machines that only have 32-bit atomic access. Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Fam Zheng <famz@redhat.com> Message-Id: <20170605123908.18777-11-pbonzini@redhat.com> Signed-off-by: Fam Zheng <famz@redhat.com>
2017-06-12Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into ↵Peter Maydell3-3/+23
staging # gpg: Signature made Wed 07 Jun 2017 19:06:51 BST # gpg: using RSA key 0x9CA4ABB381AB73C8 # gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" # gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>" # Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35 775A 9CA4 ABB3 81AB 73C8 * remotes/stefanha/tags/block-pull-request: configure: split c and cxx extra flags coroutine-lock: do not touch coroutine after another one has been entered .gdbinit: load QEMU sub-commands when gdb starts coccinelle: fix typo in comment oslib: strip trailing '\n' from error_setg() string argument Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-06-07sockets: improve error reporting if UNIX socket path is too longDaniel P. Berrange1-22/+46
The 'struct sockaddr_un' only allows 108 bytes for the socket path. If the user supplies a path, QEMU uses snprintf() to silently truncate it when too long. This is undesirable because the user will then be unable to connect to the path they asked for. If the user doesn't supply a path, QEMU builds one based on TMPDIR, but if that leads to an overlong path, it mistakenly uses error_setg_errno() with a stale errno value, because snprintf() does not set errno on truncation. In solving this the code needed some refactoring to ensure we don't pass 'un.sun_path' directly to any APIs which expect NUL-terminated strings, because the path is not required to be terminated. Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Message-Id: <20170525155300.22743-1-berrange@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-07coroutine-lock: do not touch coroutine after another one has been enteredRoman Pen2-2/+22
Submission of requests on linux aio is a bit tricky and can lead to requests completions on submission path: 44713c9e8547 ("linux-aio: Handle io_submit() failure gracefully") 0ed93d84edab ("linux-aio: process completions from ioq_submit()") That means that any coroutine which has been yielded in order to wait for completion can be resumed from submission path and be eventually terminated (freed). The following use-after-free crash was observed when IO throttling was enabled: Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x7f5813dff700 (LWP 56417)] virtqueue_unmap_sg (elem=0x7f5804009a30, len=1, vq=<optimized out>) at virtio.c:252 (gdb) bt #0 virtqueue_unmap_sg (elem=0x7f5804009a30, len=1, vq=<optimized out>) at virtio.c:252 ^^^^^^^^^^^^^^ remember the address #1 virtqueue_fill (vq=0x5598b20d21b0, elem=0x7f5804009a30, len=1, idx=0) at virtio.c:282 #2 virtqueue_push (vq=0x5598b20d21b0, elem=elem@entry=0x7f5804009a30, len=<optimized out>) at virtio.c:308 #3 virtio_blk_req_complete (req=req@entry=0x7f5804009a30, status=status@entry=0 '\000') at virtio-blk.c:61 #4 virtio_blk_rw_complete (opaque=<optimized out>, ret=0) at virtio-blk.c:126 #5 blk_aio_complete (acb=0x7f58040068d0) at block-backend.c:923 #6 coroutine_trampoline (i0=<optimized out>, i1=<optimized out>) at coroutine-ucontext.c:78 (gdb) p * elem $8 = {index = 77, out_num = 2, in_num = 1, in_addr = 0x7f5804009ad8, out_addr = 0x7f5804009ae0, in_sg = 0x0, out_sg = 0x7f5804009a50} ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 'in_sg' and 'out_sg' are invalid. e.g. it is impossible that 'in_sg' is zero, instead its value must be equal to: (gdb) p/x 0x7f5804009ad8 + sizeof(elem->in_addr[0]) + 2 * sizeof(elem->out_addr[0]) $26 = 0x7f5804009af0 Seems 'elem' was corrupted. Meanwhile another thread raised an abort: Thread 12 (Thread 0x7f57f2ffd700 (LWP 56426)): #0 raise () from /lib/x86_64-linux-gnu/libc.so.6 #1 abort () from /lib/x86_64-linux-gnu/libc.so.6 #2 qemu_coroutine_enter (co=0x7f5804009af0) at qemu-coroutine.c:113 #3 qemu_co_queue_run_restart (co=0x7f5804009a30) at qemu-coroutine-lock.c:60 #4 qemu_coroutine_enter (co=0x7f5804009a30) at qemu-coroutine.c:119 ^^^^^^^^^^^^^^^^^^ WTF?? this is equal to elem from crashed thread #5 qemu_co_queue_run_restart (co=0x7f57e7f16ae0) at qemu-coroutine-lock.c:60 #6 qemu_coroutine_enter (co=0x7f57e7f16ae0) at qemu-coroutine.c:119 #7 qemu_co_queue_run_restart (co=0x7f5807e112a0) at qemu-coroutine-lock.c:60 #8 qemu_coroutine_enter (co=0x7f5807e112a0) at qemu-coroutine.c:119 #9 qemu_co_queue_run_restart (co=0x7f5807f17820) at qemu-coroutine-lock.c:60 #10 qemu_coroutine_enter (co=0x7f5807f17820) at qemu-coroutine.c:119 #11 qemu_co_queue_run_restart (co=0x7f57e7f18e10) at qemu-coroutine-lock.c:60 #12 qemu_coroutine_enter (co=0x7f57e7f18e10) at qemu-coroutine.c:119 #13 qemu_co_enter_next (queue=queue@entry=0x5598b1e742d0) at qemu-coroutine-lock.c:106 #14 timer_cb (blk=0x5598b1e74280, is_write=<optimized out>) at throttle-groups.c:419 Crash can be explained by access of 'co' object from the loop inside qemu_co_queue_run_restart(): while ((next = QSIMPLEQ_FIRST(&co->co_queue_wakeup))) { QSIMPLEQ_REMOVE_HEAD(&co->co_queue_wakeup, co_queue_next); ^^^^^^^^^^^^^^^^^^^^ on each iteration 'co' is accessed, but 'co' can be already freed qemu_coroutine_enter(next); } When 'next' coroutine is resumed (entered) it can in its turn resume 'co', and eventually free it. That's why we see 'co' (which was freed) has the same address as 'elem' from the first backtrace. The fix is obvious: use temporary queue and do not touch coroutine after first qemu_coroutine_enter() is invoked. The issue is quite rare and happens every ~12 hours on very high IO and CPU load (building linux kernel with -j512 inside guest) when IO throttling is enabled. With the fix applied guest is running ~35 hours and is still alive so far. Signed-off-by: Roman Pen <roman.penyaev@profitbricks.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Message-id: 20170601160847.23720-1-roman.penyaev@profitbricks.com Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Fam Zheng <famz@redhat.com> Cc: Stefan Hajnoczi <stefanha@redhat.com> Cc: Kevin Wolf <kwolf@redhat.com> Cc: qemu-devel@nongnu.org Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-06-07oslib: strip trailing '\n' from error_setg() string argumentPhilippe Mathieu-Daudé1-1/+1
spotted by Coccinelle script scripts/coccinelle/err-bad-newline.cocci Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Laurent Vivier <lvivier@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-06-06Check the return value of fcntl in qemu_set_cloexecStefano Stabellini1-1/+3
Assert that the return value is not an error. This issue was found by Coverity. CID: 1374831 Signed-off-by: Stefano Stabellini <sstabellini@kernel.org> CC: groug@kaod.org CC: pbonzini@redhat.com CC: Eric Blake <eblake@redhat.com> Message-Id: <1494356693-13190-2-git-send-email-sstabellini@kernel.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-02Remove/replace sysemu/char.h inclusionMarc-André Lureau1-1/+0
Those are apparently unnecessary includes. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2017-06-01Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2017-05-31' into ↵Peter Maydell1-5/+5
staging QAPI patches for 2017-05-31 # gpg: Signature made Wed 31 May 2017 18:06:39 BST # gpg: using RSA key 0x3870B400EB918653 # gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" # gpg: aka "Markus Armbruster <armbru@pond.sub.org>" # Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867 4E5F 3870 B400 EB91 8653 * remotes/armbru/tags/pull-qapi-2017-05-31: qapi: Reject alternates that can't work with keyval_parse() tests/qapi-schema: Avoid 'str' in alternate test cases qapi: Document visit_type_any() issues with keyval input qobject-input-visitor: Reject non-finite numbers with keyval Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-06-01Merge remote-tracking branch 'remotes/gkurz/tags/for-upstream' into stagingPeter Maydell1-47/+0
Various bugfixes and code cleanups. Most notably, it fixes metadata handling in mapped-file security mode (especially for the virtfs root). # gpg: Signature made Tue 30 May 2017 14:36:22 BST # gpg: using DSA key 0x02FC3AEB0101DBC2 # gpg: Good signature from "Greg Kurz <groug@kaod.org>" # gpg: aka "Greg Kurz <groug@free.fr>" # gpg: aka "Greg Kurz <gkurz@linux.vnet.ibm.com>" # gpg: aka "Gregory Kurz (Groug) <groug@free.fr>" # gpg: aka "[jpeg image of size 3330]" # gpg: WARNING: This key is not certified with a trusted signature! # gpg: There is no indication that the signature belongs to the owner. # Primary key fingerprint: 2BD4 3B44 535E C0A7 9894 DBA2 02FC 3AEB 0101 DBC2 * remotes/gkurz/tags/for-upstream: 9pfs: local: metadata file for the VirtFS root 9pfs: local: simplify file opening 9pfs: local: resolve special directories in paths 9pfs: check return value of v9fs_co_name_to_path() util: drop old utimensat() compat code 9pfs: assume utimensat() and futimens() are present fsdev: fix virtfs-proxy-helper cwd 9pfs: local: fix unlink of alien files in mapped-file mode 9pfs: drop pdu_push_and_notify() fsdev: don't allow unknown format in marshal/unmarshal virtio-9p/xen-9p: move 9p specific bits to core 9p code Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-05-31qapi: Reject alternates that can't work with keyval_parse()Markus Armbruster1-5/+5
Alternates are sum types like unions, but use the JSON type on the wire / QType in QObject instead of an explicit tag. That's why we require alternate members to have distinct QTypes. The recently introduced keyval_parse() (commit d454dbe) can only produce string scalars. The qobject_input_visitor_new_keyval() input visitor mostly hides the difference, so code using a QObject input visitor doesn't have to care whether its input was parsed from JSON or KEY=VALUE,... The difference leaks for alternates, as noted in commit 0ee9ae7: a non-string, non-enum scalar alternate value can't currently be expressed. In part, this is just our insufficiently sophisticated implementation. Consider alternate type 'GuestFileWhence'. It has an integer member and a 'QGASeek' member. The latter is an enumeration with values 'set', 'cur', 'end'. The meaning of b=set, b=cur, b=end, b=0, b=1 and so forth is perfectly obvious. However, our current implementation falls apart at run time for b=0, b=1, and so forth. Fixable, but not today; add a test case and a TODO comment. Now consider an alternate type with a string and an integer member. What's the meaning of a=42? Is it the string "42" or the integer 42? Whichever meaning you pick makes the other inexpressible. This isn't just an implementation problem, it's fundamental. Our current implementation will pick string. So far, we haven't needed such alternates. To make sure we stop and think before we add one that cannot sanely work with keyval_parse(), let's require alternate members to have sufficiently distinct representation in KEY=VALUE,... syntax: * A string member clashes with any other scalar member * An enumeration member clashes with bool members when it has value 'on' or 'off'. * An enumeration member clashes with numeric members when it has a value that starts with '-', '+', or a decimal digit. This is a rather lazy approximation of the actual number syntax accepted by the visitor. Note that enumeration values starting with '-' and '+' are rejected elsewhere already, but better safe than sorry. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <1495471335-23707-5-git-send-email-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2017-05-25util: drop old utimensat() compat codeGreg Kurz1-47/+0
Now that 9pfs and virtfs-proxy-helper have been converted to utimensat(), we don't need to keep qemu_utimens() anymore. Signed-off-by: Greg Kurz <groug@kaod.org> Reviewed-by: Eric Blake <eblake@redhat.com>
2017-05-23sockets: Plug memory leak in socket_address_flatten()Markus Armbruster1-1/+3
socket_address_flatten() leaks a SocketAddress when its argument is null. Happens when opening a ChardevBackend of type 'udp' that is configured without a local address. Screwed up in commit bd269ebc due to last minute semantic conflict resolution. Spotted by Coverity. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <1494866344-11013-1-git-send-email-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2017-05-17utils: provide size_to_str()Peter Xu1-0/+25
Moving the algorithm from print_type_size() into size_to_str() so that other component can also leverage it. With that, refactor print_type_size(). The assert() in that logic is removed though, since even UINT64_MAX would not overflow. Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <1494562661-9063-3-git-send-email-peterx@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-05-12Merge tag 'block-pull-request' into stagingStefan Hajnoczi1-198/+0
# gpg: Signature made Fri 12 May 2017 10:37:12 AM EDT # gpg: using RSA key 0x9CA4ABB381AB73C8 # gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" # gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>" # Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35 775A 9CA4 ABB3 81AB 73C8 * tag 'block-pull-request': aio: add missing aio_notify() to aio_enable_external() block: Simplify BDRV_BLOCK_RAW recursion coroutine: remove GThread implementation Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-05-12Merge remote-tracking branch 'kwolf/tags/for-upstream' into stagingStefan Hajnoczi1-0/+48
Block layer patches # gpg: Signature made Thu 11 May 2017 10:31:37 AM EDT # gpg: using RSA key 0x7F09B272C88F2FD6 # gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" # Primary key fingerprint: DC3D EB15 9A9A F95D 3D74 56FE 7F09 B272 C88F 2FD6 * kwolf/tags/for-upstream: (58 commits) MAINTAINERS: Add qemu-progress to the block layer qcow2: Discard/zero clusters by byte count qcow2: Assert that cluster operations are aligned qcow2: Optimize write zero of unaligned tail cluster iotests: Add test 179 to cover write zeroes with unmap iotests: Improve _filter_qemu_img_map qcow2: Optimize zero_single_l2() to minimize L2 churn qcow2: Make distinction between zero cluster types obvious qcow2: Name typedef for cluster type qcow2: Correctly report status of preallocated zero clusters block: Update comments on BDRV_BLOCK_* meanings qcow2: Use consistent switch indentation qcow2: Nicer variable names in qcow2_update_snapshot_refcount() tests: Add coverage for recent block geometry fixes blkdebug: Add ability to override unmap geometries blkdebug: Simplify override logic blkdebug: Add pass-through write_zero and discard support blkdebug: Refactor error injection blkdebug: Sanity check block layer guarantees qemu-io: Switch 'map' output to byte-based reporting ... Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-05-12coroutine: remove GThread implementationDaniel P. Berrange1-198/+0
The GThread implementation is not functional enough to actually run QEMU reliably. While it was potentially useful for debugging, we have a scripts/qemugdb/coroutine.py to enable tracing of ucontext coroutines in GDB, so that removes the only reason for GThread to exist. Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Acked-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-05-11osdep: Fall back to posix lock when OFD lock is unavailableFam Zheng1-10/+10
Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2017-05-11osdep: Add qemu_lock_fd and qemu_unlock_fdFam Zheng1-0/+48
They are wrappers of POSIX fcntl "file private locking", with a convenient "try lock" wrapper implemented with F_OFD_GETLK. Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2017-05-10Merge remote-tracking branch 'mjt/tags/trivial-patches-fetch' into stagingStefan Hajnoczi1-28/+19
trivial patches for 2017-05-10 # gpg: Signature made Wed 10 May 2017 03:19:30 AM EDT # gpg: using RSA key 0x701B4F6B1A693E59 # gpg: Good signature from "Michael Tokarev <mjt@tls.msk.ru>" # gpg: aka "Michael Tokarev <mjt@corpit.ru>" # gpg: aka "Michael Tokarev <mjt@debian.org>" # Primary key fingerprint: 6EE1 95D1 886E 8FFB 810D 4324 457C E0A0 8044 65C5 # Subkey fingerprint: 7B73 BAD6 8BE7 A2C2 8931 4B22 701B 4F6B 1A69 3E59 * mjt/tags/trivial-patches-fetch: (23 commits) tests: Remove redundant assignment MAINTAINERS: Update paths for AioContext implementation MAINTAINERS: Update paths for main loop jazz_led: fix bad snprintf tests: Ignore another built executable (test-hmp) scripts: Switch to more portable Perl shebang scripts/qemu-binfmt-conf.sh: Fix shell portability issue virtfs: allow a device id to be specified in the -virtfs option hw/core/generic-loader: Fix crash when running without CPU virtio-blk: Remove useless condition around g_free() qemu-doc: Fix broken URLs of amnhltm.zip and dosidle210.zip use _Static_assert in QEMU_BUILD_BUG_ON channel-file: fix wrong parameter comments block: Make 'replication_state' an enum util: Use g_malloc/g_free in envlist.c qga: fix compiler warnings (clang 5) device_tree: fix compiler warnings (clang 5) usb-ccid: make ccid_write_data_block() cope with null buffers tests: Ignore more test executables Add 'none' as type for drive's if option ... Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-05-09Merge remote-tracking branch 'armbru/tags/pull-qapi-2017-05-04-v3' into stagingStefan Hajnoczi2-98/+89
QAPI patches for 2017-05-04 # gpg: Signature made Tue 09 May 2017 03:16:12 AM EDT # gpg: using RSA key 0x3870B400EB918653 # gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" # gpg: aka "Markus Armbruster <armbru@pond.sub.org>" # Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867 4E5F 3870 B400 EB91 8653 * armbru/tags/pull-qapi-2017-05-04-v3: (28 commits) qmp-shell: improve help qmp-shell: don't show version greeting if unavailable qmp-shell: Cope with query-commands error qmp-shell: add -N option to skip negotiate qmp-shell: add persistent command history qobject-input-visitor: Catch misuse of end_struct vs. end_list qapi: Document intended use of @name within alternate visits qobject-input-visitor: Document full_name_nth() qmp: Improve QMP dispatch error messages sockets: Delete unused helper socket_address_crumple() sockets: Limit SocketAddressLegacy to external interfaces sockets: Rename SocketAddressFlat to SocketAddress sockets: Rename SocketAddress to SocketAddressLegacy qapi: New QAPI_CLONE_MEMBERS() sockets: Prepare inet_parse() for flattened SocketAddress sockets: Prepare vsock_parse() for flattened SocketAddress test-qga: Actually test 0xff sync bytes fdc-test: Avoid deprecated 'change' command QemuOpts: Simplify qemu_opts_to_qdict() block: Simplify bdrv_append_temp_snapshot() logic ... Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-05-09sockets: Delete unused helper socket_address_crumple()Markus Armbruster1-31/+0
Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <1493192202-3184-8-git-send-email-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> [Commit message typo fixed]
2017-05-09sockets: Limit SocketAddressLegacy to external interfacesMarkus Armbruster1-75/+105
SocketAddressLegacy is a simple union, and simple unions are awkward: they have their variant members wrapped in a "data" object on the wire, and require additional indirections in C. SocketAddress is the equivalent flat union. Convert all users of SocketAddressLegacy to SocketAddress, except for existing external interfaces. See also commit fce5d53..9445673 and 85a82e8..c5f1ae3. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <1493192202-3184-7-git-send-email-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> [Minor editing accident fixed, commit message and a comment tweaked] Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-05-09sockets: Rename SocketAddressFlat to SocketAddressMarkus Armbruster1-5/+5
Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <1493192202-3184-6-git-send-email-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
2017-05-09sockets: Rename SocketAddress to SocketAddressLegacyMarkus Armbruster1-50/+50
The next commit will rename SocketAddressFlat to SocketAddress, and the commit after that will replace most uses of SocketAddressLegacy by SocketAddress, replacing most of this commit's renames right back. Note that checkpatch emits a few "line over 80 characters" warnings. The long lines are all temporary; the SocketAddressLegacy replacement will shorten them again. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <1493192202-3184-5-git-send-email-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-05-09sockets: Prepare inet_parse() for flattened SocketAddressMarkus Armbruster1-18/+12
I'm going to flatten SocketAddress: rename SocketAddress to SocketAddressLegacy, SocketAddressFlat to SocketAddress, eliminate SocketAddressLegacy except in external interfaces. inet_parse() returns a newly allocated InetSocketAddress. Lift the allocation from inet_parse() into its caller socket_parse() to prepare for flattening SocketAddress. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <1493192202-3184-3-git-send-email-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> [Straightforward rebase]
2017-05-09sockets: Prepare vsock_parse() for flattened SocketAddressMarkus Armbruster1-10/+10
I'm going to flatten SocketAddress: rename SocketAddress to SocketAddressLegacy, SocketAddressFlat to SocketAddress, eliminate SocketAddressLegacy except in external interfaces. vsock_parse() returns a newly allocated VsockSocketAddress. Lift the allocation from vsock_parse() into its caller socket_parse() to prepare for flattening SocketAddress. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <1493192202-3184-2-git-send-email-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2017-05-09QemuOpts: Simplify qemu_opts_to_qdict()Eric Blake1-3/+1
Noticed while investigating Coccinelle cleanups. There is no need for a temporary variable when we can use the new macro to do the same thing with less typing. Signed-off-by: Eric Blake <eblake@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20170427215821.19397-9-eblake@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-05-09qobject: Use simpler QDict/QList scalar insertion macrosEric Blake1-1/+1
We now have macros in place to make it less verbose to add a scalar to QDict and QList, so use them. Patch created mechanically via: spatch --sp-file scripts/coccinelle/qobject.cocci \ --macro-file scripts/cocci-macro-file.h --dir . --in-place then touched up manually to fix a couple of '?:' back to original spacing, as well as avoiding a long line in monitor.c. Signed-off-by: Eric Blake <eblake@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20170427215821.19397-7-eblake@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Alberto Garcia <berto@igalia.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-05-08Merge remote-tracking branch 'bonzini/tags/for-upstream' into stagingStefan Hajnoczi3-2/+31
A large set of small patches. I have not included yet vhost-user-scsi, but it'll come in the next pull request. * use GDB XML register description for x86 * use _Static_assert in QEMU_BUILD_BUG_ON * add "R:" to MAINTAINERS and get_maintainers * checkpatch improvements * dump threading fixes * first part of vhost-user-scsi support * QemuMutex tracing * vmw_pvscsi and megasas fixes * sgabios module update * use Rev3 (ACPI 2.0) FADT * deprecate -hdachs * improve -accel documentation * hax fix * qemu-char GSource bugfix # gpg: Signature made Fri 05 May 2017 06:10:40 AM EDT # gpg: using RSA key 0xBFFBD25F78C7AE83 # gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" # gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" # Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1 # Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83 * bonzini/tags/for-upstream: (21 commits) vhost-scsi: create a vhost-scsi-common abstraction libvhost-user: replace vasprintf() to fix build get_maintainer: add subsystem to reviewer output get_maintainer: --r (list reviewer) is on by default get_maintainer: it's '--pattern-depth', not '-pattern-depth' get_maintainer: Teach get_maintainer.pl about the new "R:" tag MAINTAINERS: Add "R:" tag for self-appointed reviewers Fix the -accel parameter and the documentation for 'hax' dump: Acquire BQL around vm_start() in dump thread hax: Fix memory mapping de-duplication logic checkpatch: Disallow glib asserts in main code trace: add qemu mutex lock and unlock trace events vmw_pvscsi: check message ring page count at initialisation sgabios: update for "fix wrong video attrs for int 10h,ah==13h" scsi: avoid an off-by-one error in megasas_mmio_write vl: deprecate the "-hdachs" option use _Static_assert in QEMU_BUILD_BUG_ON target/i386: Add GDB XML register description support char: Fix removing wrong GSource that be found by fd_in_tag hw/i386: Build-time assertion on pc/q35 reset register being identical. ... Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-05-07util: Use g_malloc/g_free in envlist.cSaurav Sachidanand1-28/+19
Change malloc/strdup/free to g_malloc/g_strdup/g_free in util/envlist.c. Remove NULL checks for pointers returned from g_malloc and g_strdup as they exit in case of failure. Also, update calls to envlist_create to reflect this. Free array and array contents returned by envlist_to_environ using g_free in bsd-user/main.c and linux-user/main.c. Update comments to reflect change in semantics. Signed-off-by: Saurav Sachidanand <sauravsachidanand@gmail.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-05-05Merge remote-tracking branch 'cohuck/tags/s390x-20170502' into stagingStefan Hajnoczi1-0/+6
More s390x patches, this time boot related: - LOADPARM machine property, exposed to the guest via SCLP and diagnose 308 - Use LOADPARM in the s390-ccw bios to select a boot entry - Fix a crash in the ipl device code when a virtio-scsi-pci device has been specified # gpg: Signature made Tue 02 May 2017 02:29:26 PM BST # gpg: using RSA key 0xDECF6B93C6F02FAF # gpg: Good signature from "Cornelia Huck <conny@cornelia-huck.de>" # gpg: aka "Cornelia Huck <cohuck@kernel.org>" # gpg: aka "Cornelia Huck <cornelia.huck@de.ibm.com>" # gpg: aka "Cornelia Huck <huckc@linux.vnet.ibm.com>" # Primary key fingerprint: C3D0 D66D C362 4FF6 A8C0 18CE DECF 6B93 C6F0 2FAF * cohuck/tags/s390x-20170502: hw/s390x/ipl: Fix crash with virtio-scsi-pci device pc-bios/s390-ccw.img: update image pc-bios/s390-ccw: add boot entry selection to El Torito routine pc-bios/s390-ccw: add boot entry selection for ECKD DASD pc-bios/s390-ccw: provide entry selection on LOADPARM for SCSI disk pc-bios/s390-ccw: provide a function to interpret LOADPARM value pc-bios/s390-ccw: get LOADPARM stored in SCP Read Info pc-bios/s390-ccw: Make ebcdic/ascii conversion public util/qemu-config: Add loadparm to qemu machine_opts hw/s390x/sclp: update LOADPARM in SCP Info hw/s390x/ipl: enable LOADPARM in IPIB for a boot device hw/s390x: provide loadparm property for the machine Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-05-05trace: add qemu mutex lock and unlock trace eventsJose Ricardo Ziviani3-2/+31
These trace events were very useful to help me to understand and find a reordering issue in vfio, for example: qemu_mutex_lock locked mutex 0x10905ad8 vfio_region_write (0001:03:00.0:region1+0xc0, 0x2020c, 4) qemu_mutex_unlock unlocked mutex 0x10905ad8 qemu_mutex_lock locked mutex 0x10905ad8 vfio_region_write (0001:03:00.0:region1+0xc4, 0xa0000, 4) qemu_mutex_unlock unlocked mutex 0x10905ad8 that also helped me to see the desired result after the fix: qemu_mutex_lock locked mutex 0x10905ad8 vfio_region_write (0001:03:00.0:region1+0xc0, 0x2000c, 4) vfio_region_write (0001:03:00.0:region1+0xc4, 0xb0000, 4) qemu_mutex_unlock unlocked mutex 0x10905ad8 So it could be a good idea to have these traces implemented. It's worth mentioning that they should be surgically enabled during the debugging, otherwise it can flood the trace logs with lock/unlock messages. How to use it: trace-event qemu_mutex_lock on|off trace-event qemu_mutex_unlock on|off or trace-event qemu_mutex* on|off Signed-off-by: Jose Ricardo Ziviani <joserz@linux.vnet.ibm.com> Message-Id: <1493054398-26013-1-git-send-email-joserz@linux.vnet.ibm.com> Reviewed-by: Fam Zheng <famz@redhat.com> [Also handle trylock, cond_wait and win32; trace "unlocked" while still in the critical section, so that "unlocked" always comes before the next "locked" tracepoint. - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-05-02util/qemu-config: Add loadparm to qemu machine_optsFarhan Ali1-0/+6
Add S390CcwMachineState machine parameter "loadparm" to qemu machine_opts so libvirt can query for it. Signed-off-by: Farhan Ali <alifm@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2017-04-28progress: Show current progress on SIGINFOMax Reitz1-0/+3
Currently we only print progress information on retrieval of SIGUSR1. Some systems have a dedicated SIGINFO for this, however, so it should be handled appropriately if it is available. Buglink: https://bugs.launchpad.net/qemu/+bug/1662468 Signed-off-by: Max Reitz <mreitz@redhat.com> Message-id: 20170207235757.2026-1-mreitz@redhat.com Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2017-04-24Merge remote-tracking branch 'remotes/kraxel/tags/pull-vga-20170424-1' into ↵Peter Maydell1-0/+11
staging fix display update races, part one. add xres + yres properties to qxl and virtio. misc fixes and cleanups. # gpg: Signature made Mon 24 Apr 2017 13:14:49 BST # gpg: using RSA key 0x4CB6D8EED3E87138 # 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>" # Primary key fingerprint: A032 8CFF B93A 17A7 9901 FE7D 4CB6 D8EE D3E8 7138 * remotes/kraxel/tags/pull-vga-20170424-1: virtio-gpu: add xres and yres properties qxl: add xres and yres properties vmsvga: fix vmsvga_update_display g364fb: make display updates thread safe exynos: make display updates thread safe framebuffer: make display updates thread safe vga: make display updates thread safe. vga: add vga_scanline_invalidated helper memory: add support getting and using a dirty bitmap copy. bitmap: add bitmap_copy_and_clear_atomic virtio-gpu: replace PIXMAN_* by PIXMAN_BE_* console: add same displaychangelistener registration pre-condition console: add same surface replace pre-condition Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-04-24bitmap: add bitmap_copy_and_clear_atomicGerd Hoffmann1-0/+11
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Message-id: 20170421091632.30900-2-kraxel@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-04-24socket: Make errp the last parameter of vsock_connect_saddrFam Zheng1-5/+6
Signed-off-by: Fam Zheng <famz@redhat.com> Message-Id: <20170421122710.15373-5-famz@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-04-24socket: Make errp the last parameter of unix_connect_saddrFam Zheng1-6/+8
Signed-off-by: Fam Zheng <famz@redhat.com> Message-Id: <20170421122710.15373-4-famz@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-04-24socket: Make errp the last parameter of inet_connect_saddrFam Zheng1-4/+5
Signed-off-by: Fam Zheng <famz@redhat.com> Message-Id: <20170421122710.15373-3-famz@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-04-24socket: Make errp the last parameter of socket_connectFam Zheng1-2/+2
Signed-off-by: Fam Zheng <famz@redhat.com> Message-Id: <20170421122710.15373-2-famz@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-04-24util/error: Fix leak in error_vprepend()Max Reitz1-0/+1
Signed-off-by: Max Reitz <mreitz@redhat.com> Message-Id: <20170413160952.29918-1-mreitz@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Reviewed-by: Jeff Cody <jcody@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-04-21throttle: make throttle_config(throttle_get_config()) symmetricStefan Hajnoczi1-0/+14
Throttling has a weird property that throttle_get_config() does not always return the same throttling settings that were given with throttle_config(). In other words, the set and get functions aren't symmetric. If .max is 0 then the throttling code assigns a default value of .avg / 10 in throttle_config(). This is an implementation detail of the throttling algorithm. When throttle_get_config() is called the .max value returned should still be 0. Users are exposed to this quirk via "info block" or "query-block" monitor commands. This has caused confusion because it looks like a bug when an unexpected value is reported. This patch hides the .max value adjustment in throttle_get_config() and updates test-throttle.c appropriately. Reported-by: Nini Gu <ngu@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Alberto Garcia <berto@igalia.com> Message-id: 20170301115026.22621-4-stefanha@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
generated by cgit v1.1 at 2024-09-12 01:26:16 +0000