Commit Graph

1059 Commits

Author SHA1 Message Date
Stefan Hajnoczi 72d41eb4b8 memory: fetch pmem size in get_file_size()
Neither stat(2) nor lseek(2) report the size of Linux devdax pmem
character device nodes.  Commit 314aec4a6e
("hostmem-file: reject invalid pmem file sizes") added code to
hostmem-file.c to fetch the size from sysfs and compare against the
user-provided size=NUM parameter:

  if (backend->size > size) {
      error_setg(errp, "size property %" PRIu64 " is larger than "
                 "pmem file \"%s\" size %" PRIu64, backend->size,
                 fb->mem_path, size);
      return;
  }

It turns out that exec.c:qemu_ram_alloc_from_fd() already has an
equivalent size check but it skips devdax pmem character devices because
lseek(2) returns 0:

  if (file_size > 0 && file_size < size) {
      error_setg(errp, "backing store %s size 0x%" PRIx64
                 " does not match 'size' option 0x" RAM_ADDR_FMT,
                 mem_path, file_size, size);
      return NULL;
  }

This patch moves the devdax pmem file size code into get_file_size() so
that we check the memory size in a single place:
qemu_ram_alloc_from_fd().  This simplifies the code and makes it more
general.

This also fixes the problem that hostmem-file only checks the devdax
pmem file size when the pmem=on parameter is given.  An unchecked
size=NUM parameter can lead to SIGBUS in QEMU so we must always fetch
the file size for Linux devdax pmem character device nodes.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20190830093056.12572-1-stefanha@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-09-16 12:32:21 +02:00
Peter Maydell 3d9442ee1d Block layer patches:
- qcow2: Allow overwriting multiple compressed clusters at once for
   better performance
 - nfs: add support for nfs_umount
 - file-posix: write_zeroes fixes
 - qemu-io, blockdev-create, pr-manager: Fix crashes and memory leaks
 - qcow2: Fix the calculation of the maximum L2 cache size
 - vpc: Fix return code for vpc_co_create()
 - blockjob: Code cleanup
 - iotests improvements (e.g. for use with valgrind)
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Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer patches:

- qcow2: Allow overwriting multiple compressed clusters at once for
  better performance
- nfs: add support for nfs_umount
- file-posix: write_zeroes fixes
- qemu-io, blockdev-create, pr-manager: Fix crashes and memory leaks
- qcow2: Fix the calculation of the maximum L2 cache size
- vpc: Fix return code for vpc_co_create()
- blockjob: Code cleanup
- iotests improvements (e.g. for use with valgrind)

# gpg: Signature made Fri 13 Sep 2019 11:19:19 BST
# gpg:                using RSA key 7F09B272C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" [full]
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74  56FE 7F09 B272 C88F 2FD6

* remotes/kevin/tags/for-upstream: (23 commits)
  qcow2: Stop overwriting compressed clusters one by one
  block/create: Do not abort if a block driver is not available
  qemu-io: Don't leak pattern file in error path
  iotests: extend sleeping time under Valgrind
  iotests: extended timeout under Valgrind
  iotests: Valgrind fails with nonexistent directory
  iotests: Add casenotrun report to bash tests
  iotests: exclude killed processes from running under Valgrind
  iotests: allow Valgrind checking all QEMU processes
  block/nfs: add support for nfs_umount
  block/nfs: tear down aio before nfs_close
  iotests: skip 232 when run tests as root
  iotests: Test blockdev-create for vpc
  iotests: Restrict nbd Python tests to nbd
  iotests: Restrict file Python tests to file
  iotests: Add supported protocols to execute_test()
  vpc: Return 0 from vpc_co_create() on success
  file-posix: Fix has_write_zeroes after NO_FALLBACK
  pr-manager: Fix invalid g_free() crash bug
  iotests: Test reverse sub-cluster qcow2 writes
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-09-13 13:43:42 +01:00
Shu-Chun Weng 9bdfa4d23f linux-user: add memfd_create
Add support for the memfd_create syscall. If the host does not have the
libc wrapper, translate to a direct syscall with NC-macro.

Buglink: https://bugs.launchpad.net/qemu/+bug/1734792
Signed-off-by: Shu-Chun Weng <scw@google.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20190819180947.180725-1-scw@google.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-09-11 08:46:17 +02:00
Vladimir Sementsov-Ogievskiy bb0c940993 job: drop job_drain
In job_finish_sync job_enter should be enough for a job to make some
progress and draining is a wrong tool for it. So use job_enter directly
here and drop job_drain with all related staff not used more.

Suggested-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Tested-by: John Snow <jsnow@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-09-10 08:58:43 +02:00
Juan Quintela e5b6353cf2 socket: Add backlog parameter to socket_listen
Current parameter was always one.  We continue with that value for now
in all callers.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
---
Moved trace to socket_listen
2019-09-03 23:24:42 +02:00
Vladimir Sementsov-Ogievskiy 5396234b96 block/qcow2: implement .bdrv_co_pwritev(_compressed)_part
Implement and use new interface to get rid of hd_qiov.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20190604161514.262241-13-vsementsov@virtuozzo.com
Message-Id: <20190604161514.262241-13-vsementsov@virtuozzo.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2019-08-27 14:58:42 +01:00
Vladimir Sementsov-Ogievskiy f76889e7b9 util/iov: improve qemu_iovec_is_zero
We'll need to check a part of qiov soon, so implement it now.

Optimization with align down to 4 * sizeof(long) is dropped due to:
1. It is strange: it aligns length of the buffer, but where is a
   guarantee that buffer pointer is aligned itself?
2. buffer_is_zero() is a better place for optimizations and it has
   them.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20190604161514.262241-3-vsementsov@virtuozzo.com
Message-Id: <20190604161514.262241-3-vsementsov@virtuozzo.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2019-08-27 14:52:45 +01:00
Vladimir Sementsov-Ogievskiy d953169d48 util/iov: introduce qemu_iovec_init_extended
Introduce new initialization API, to create requests with padding. Will
be used in the following patch. New API uses qemu_iovec_init_buf if
resulting io vector has only one element, to avoid extra allocations.
So, we need to update qemu_iovec_destroy to support destroying such
QIOVs.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20190604161514.262241-2-vsementsov@virtuozzo.com
Message-Id: <20190604161514.262241-2-vsementsov@virtuozzo.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2019-08-27 14:52:45 +01:00
Marc-André Lureau 81d8ccb1be module: return success on module load
Let the caller know of load success.

Note that this also changes slightly the behaviour of the function to
try loading on subsequent calls if the previous ones failed.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-08-21 16:29:57 +02:00
Pavel Dovgalyuk dcb1578069 util/qemu-timer: refactor deadline calculation for external timers
icount-based record/replay uses qemu_clock_deadline_ns_all to measure
the period until vCPU may be interrupted.
This function takes in account the virtual timers, because they belong
to the virtual devices that may generate interrupt request or affect
the virtual machine state.
However, there are a subset of virtual timers, that are marked with
'external' flag. These do not change the virtual machine state and
only based on virtual clock. Calculating the deadling using the external
timers breaks the determinism, because they do not belong to the replayed
part of the virtual machine.
This patch fixes the deadline calculation for this case by adding
new parameter for skipping the external timers when it is needed.

Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>

--

v2 changes:
 - added new parameter for timer attribute mask
Message-Id: <156404426682.18669.17014100602930969222.stgit@pasha-Precision-3630-Tower>

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-08-20 17:26:21 +02:00
Dr. David Alan Gilbert 3c2d4c8aa6 timer: last, remove last bits of last
The reset notifiers kept a 'last' counter to notice jumps;
now that we've remove the notifier we don't need to keep 'last'.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20190724115823.4199-5-dgilbert@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-08-20 17:26:21 +02:00
Dr. David Alan Gilbert 4ea9a0e3db timer: Remove reset notifiers
Remove the reset notifer from the core qemu-timer code.
The only user was mc146818 and we've just remove it's use.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20190724115823.4199-3-dgilbert@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-08-20 17:26:20 +02:00
Markus Armbruster 2f780b6a91 sysemu: Move the VMChangeStateEntry typedef to qemu/typedefs.h
In my "build everything" tree, changing sysemu/sysemu.h triggers a
recompile of some 1800 out of 6600 objects (not counting tests and
objects that don't depend on qemu/osdep.h, down from 5400 due to the
previous commit).

Several headers include sysemu/sysemu.h just to get typedef
VMChangeStateEntry.  Move it from sysemu/sysemu.h to qemu/typedefs.h.
Spell its structure tag the same while there.  Drop the now
superfluous includes of sysemu/sysemu.h from headers.

Touching sysemu/sysemu.h now recompiles some 1100 objects.
qemu/uuid.h also drops from 1800 to 1100, and
qapi/qapi-types-run-state.h from 5000 to 4400.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190812052359.30071-29-armbru@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-08-16 13:31:53 +02:00
Markus Armbruster 7969dd9169 Include sysemu/hostmem.h less
Move the HostMemoryBackend typedef from sysemu/hostmem.h to
qemu/typedefs.h.  This renders a few inclusions of sysemu/hostmem.h
superfluous; drop them.

Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190812052359.30071-25-armbru@redhat.com>
2019-08-16 13:31:53 +02:00
Markus Armbruster dc5e9ac716 Include qemu/queue.h slightly less
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190812052359.30071-20-armbru@redhat.com>
2019-08-16 13:31:52 +02:00
Markus Armbruster d645427057 Include migration/vmstate.h less
In my "build everything" tree, changing migration/vmstate.h triggers a
recompile of some 2700 out of 6600 objects (not counting tests and
objects that don't depend on qemu/osdep.h).

hw/hw.h supposedly includes it for convenience.  Several other headers
include it just to get VMStateDescription.  The previous commit made
that unnecessary.

Include migration/vmstate.h only where it's still needed.  Touching it
now recompiles only some 1600 objects.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20190812052359.30071-16-armbru@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-08-16 13:31:52 +02:00
Markus Armbruster 8a9358cc6e migration: Move the VMStateDescription typedef to typedefs.h
We declare incomplete struct VMStateDescription in a couple of places
so we don't have to include migration/vmstate.h for the typedef.
That's fine with me.  However, the next commit will drop
migration/vmstate.h from a massive number of compiles.  Move the
typedef to qemu/typedefs.h now, so I don't have to insert struct in
front of VMStateDescription all over the place then.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190812052359.30071-15-armbru@redhat.com>
2019-08-16 13:31:52 +02:00
Markus Armbruster 64552b6be4 Include hw/irq.h a lot less
In my "build everything" tree, changing hw/irq.h triggers a recompile
of some 5400 out of 6600 objects (not counting tests and objects that
don't depend on qemu/osdep.h).

hw/hw.h supposedly includes it for convenience.  Several other headers
include it just to get qemu_irq and.or qemu_irq_handler.

Move the qemu_irq and qemu_irq_handler typedefs from hw/irq.h to
qemu/typedefs.h, and then include hw/irq.h only where it's still
needed.  Touching it now recompiles only some 500 objects.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190812052359.30071-13-armbru@redhat.com>
2019-08-16 13:31:52 +02:00
Markus Armbruster 2a28720d77 typedefs: Separate incomplete types and function types
While there, rewrite the obsolete file comment.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190812052359.30071-12-armbru@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
[File comment rewritten, commit message adjusted]
2019-08-16 13:31:52 +02:00
Markus Armbruster cbcbba9805 queue: Drop superfluous #include qemu/atomic.h
When commit 5f7d05ecfd added QLIST_INSERT_HEAD_RCU() to qemu/queue.h,
it had to include qemu/atomic.h.  Commit 341774fe6c removed
QLIST_INSERT_HEAD_RCU() again, but neglected to remove the #include.
Do that now.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20190812052359.30071-6-armbru@redhat.com>
2019-08-16 13:31:51 +02:00
Markus Armbruster 2ae16a6aa4 Include generated QAPI headers less
Some of the generated qapi-types-MODULE.h are included all over the
place.  Changing a QAPI type can trigger massive recompiling.  Top
scorers recompile more than 1000 out of some 6600 objects (not
counting tests and objects that don't depend on qemu/osdep.h):

    6300 qapi/qapi-builtin-types.h
    5700 qapi/qapi-types-run-state.h
    3900 qapi/qapi-types-common.h
    3300 qapi/qapi-types-sockets.h
    3000 qapi/qapi-types-misc.h
    3000 qapi/qapi-types-crypto.h
    3000 qapi/qapi-types-job.h
    3000 qapi/qapi-types-block-core.h
    2800 qapi/qapi-types-block.h
    1300 qapi/qapi-types-net.h

Clean up headers to include generated QAPI headers only where needed.
Impact is negligible except for hw/qdev-properties.h.

This header includes qapi/qapi-types-block.h and
qapi/qapi-types-misc.h.  They are used only in expansions of property
definition macros such as DEFINE_PROP_BLOCKDEV_ON_ERROR() and
DEFINE_PROP_OFF_AUTO().  Moving their inclusion from
hw/qdev-properties.h to the users of these macros avoids pointless
recompiles.  This is how other property definition macros, such as
DEFINE_PROP_NETDEV(), already work.

Improves things for some of the top scorers:

    3600 qapi/qapi-types-common.h
    2800 qapi/qapi-types-sockets.h
     900 qapi/qapi-types-misc.h
    2200 qapi/qapi-types-crypto.h
    2100 qapi/qapi-types-job.h
    2100 qapi/qapi-types-block-core.h
     270 qapi/qapi-types-block.h

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190812052359.30071-3-armbru@redhat.com>
2019-08-16 13:31:51 +02:00
Markus Armbruster ec150c7e09 include: Make headers more self-contained
Back in 2016, we discussed[1] rules for headers, and these were
generally liked:

1. Have a carefully curated header that's included everywhere first.  We
   got that already thanks to Peter: osdep.h.

2. Headers should normally include everything they need beyond osdep.h.
   If exceptions are needed for some reason, they must be documented in
   the header.  If all that's needed from a header is typedefs, put
   those into qemu/typedefs.h instead of including the header.

3. Cyclic inclusion is forbidden.

This patch gets include/ closer to obeying 2.

It's actually extracted from my "[RFC] Baby steps towards saner
headers" series[2], which demonstrates a possible path towards
checking 2 automatically.  It passes the RFC test there.

[1] Message-ID: <87h9g8j57d.fsf@blackfin.pond.sub.org>
    https://lists.nongnu.org/archive/html/qemu-devel/2016-03/msg03345.html
[2] Message-Id: <20190711122827.18970-1-armbru@redhat.com>
    https://lists.nongnu.org/archive/html/qemu-devel/2019-07/msg02715.html

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20190812052359.30071-2-armbru@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-08-16 13:31:51 +02:00
Peter Xu ad37f24d57 bitmap: Add bitmap_copy_with_{src|dst}_offset()
These helpers copy the source bitmap to destination bitmap with a
shift either on the src or dst bitmap.

Meanwhile, we never have bitmap tests but we should.

This patch also introduces the initial test cases for utils/bitmap.c
but it only tests the newly introduced functions.

Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20190603065056.25211-5-peterx@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>

---

Bitmap test used sizeof(unsigned long) instead of BITS_PER_LONG.
2019-07-15 15:39:02 +02:00
Richard Henderson 359896dfa4 include/qemu/atomic.h: Add signal_barrier
We have some potential race conditions vs our user-exec signal
handler that will be solved with this barrier.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-07-14 12:19:00 +02:00
Markus Armbruster a8d2532645 Include qemu-common.h exactly where needed
No header includes qemu-common.h after this commit, as prescribed by
qemu-common.h's file comment.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190523143508.25387-5-armbru@redhat.com>
[Rebased with conflicts resolved automatically, except for
include/hw/arm/xlnx-zynqmp.h hw/arm/nrf51_soc.c hw/arm/msf2-soc.c
block/qcow2-refcount.c block/qcow2-cluster.c block/qcow2-cache.c
target/arm/cpu.h target/lm32/cpu.h target/m68k/cpu.h target/mips/cpu.h
target/moxie/cpu.h target/nios2/cpu.h target/openrisc/cpu.h
target/riscv/cpu.h target/tilegx/cpu.h target/tricore/cpu.h
target/unicore32/cpu.h target/xtensa/cpu.h; bsd-user/main.c and
net/tap-bsd.c fixed up]
2019-06-12 13:20:20 +02:00
Markus Armbruster 856dfd8a03 qemu-common: Move qemu_isalnum() etc. to qemu/ctype.h
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190523143508.25387-3-armbru@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2019-06-11 20:22:09 +02:00
Richard Henderson 8d8404f156 util: Add qemu_guest_getrandom and associated routines
This routine is intended to produce high-quality random numbers to the
guest.  Normally, such numbers are crypto quality from the host, but a
command-line option can force the use of a fully deterministic sequence
for use while debugging.

Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-05-22 12:38:54 -04:00
Markus Armbruster 6834c3f410 Clean up decorations and whitespace around header guards
Cleaned up with scripts/clean-header-guards.pl.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190315145123.28030-9-armbru@redhat.com>
2019-05-13 08:58:55 +02:00
Markus Armbruster 177d9e0da0 Normalize header guard symbol definition.
We commonly define the header guard symbol without an explicit value.
Normalize the exceptions.

Done with scripts/clean-header-guards.pl.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190315145123.28030-8-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-05-13 08:58:55 +02:00
Markus Armbruster a8b991b52d Clean up ill-advised or unusual header guards
Leading underscores are ill-advised because such identifiers are
reserved.  Trailing underscores are merely ugly.  Strip both.

Our header guards commonly end in _H.  Normalize the exceptions.

Done with scripts/clean-header-guards.pl.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190315145123.28030-7-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
[Changes to slirp/ dropped, as we're about to spin it off]
2019-05-13 08:58:55 +02:00
Markus Armbruster 58ea30f514 Clean up header guards that don't match their file name
Header guard symbols should match their file name to make guard
collisions less likely.

Cleaned up with scripts/clean-header-guards.pl, followed by some
renaming of new guard symbols picked by the script to better ones.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190315145123.28030-6-armbru@redhat.com>
[Rebase to master: update include/hw/net/ne2000-isa.h]
2019-05-13 08:58:55 +02:00
Cao Jiaxi 946376c21b osdep: Fix mingw compilation regarding stdio formats
I encountered the following compilation error on mingw:

/mnt/d/qemu/include/qemu/osdep.h:97:9: error: '__USE_MINGW_ANSI_STDIO' macro redefined [-Werror,-Wmacro-redefined]
 #define __USE_MINGW_ANSI_STDIO 1
        ^
/mnt/d/llvm-mingw/aarch64-w64-mingw32/include/_mingw.h:433:9: note: previous definition is here
 #define __USE_MINGW_ANSI_STDIO 0      /* was not defined so it should be 0 */

It turns out that __USE_MINGW_ANSI_STDIO must be set before any
system headers are included, not just before stdio.h.

Signed-off-by: Cao Jiaxi <driver1998@foxmail.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Message-id: 20190503003719.10233-1-driver1998@foxmail.com
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-05-07 12:55:03 +01:00
Cao Jiaxi 48bb55bfaa QEMU_PACKED: Remove gcc_struct attribute in Windows non x86 targets
gcc_struct is for x86 only, and it generates an warning on ARM64 Clang/MinGW targets.

Signed-off-by: Cao Jiaxi <driver1998@foxmail.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 20190503003618.10089-1-driver1998@foxmail.com
[PMM: dropped the slirp change as slirp is now a submodule]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-05-07 12:55:02 +01:00
Philippe Mathieu-Daudé a331dd0299 hw/devices: Move TI touchscreen declarations into a new header
Since uWireSlave is only used in this new header, there is no
need to expose it via "qemu/typedefs.h".

Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20190412165416.7977-9-philmd@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-04-29 17:57:21 +01:00
Zhang Yi 2ac0f1621c util/mmap-alloc: Add a 'is_pmem' parameter to qemu_ram_mmap
besides the existing 'shared' flags, we are going to add
'is_pmem' to qemu_ram_mmap(), which indicated the memory backend
file is a persist memory.

Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com>
Signed-off-by: Zhang Yi <yi.z.zhang@linux.intel.com>
Reviewed-by: Pankaj Gupta <pagupta@redhat.com>
Message-Id: <786c46862cfeb253ee0ea2f44d62ffe76edb7fa4.1549555521.git.yi.z.zhang@linux.intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Pankaj Gupta <pagupta@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2019-04-25 14:17:36 -03:00
Markus Armbruster ede9a8a656 include: Move fprintf_function to disas/
The previous commits have eliminated fprintf_function outside
disassemblers, simplifying code and cleaning up the ugly type-punning
fprintf_function seems to attract.  Move fprintf_function to
include/disas/dis-asm.h to reduce the temptation to abuse it.

I considered renaming it to fprintf_ftype (reverting that part of
commit 6e2d864edf, v0.14.0) to get us closer to binutils, but I
figure the fork is too distant to make this worthwhile.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20190417191805.28198-18-armbru@redhat.com>
2019-04-18 22:18:59 +02:00
Markus Armbruster 19aaa4c3fd qemu-print: New qemu_fprintf(), qemu_vfprintf()
Code that doesn't want to know about current monitor vs. stdout
vs. stderr takes an fprintf_function callback and a FILE * argument to
pass to it.  Actual arguments are either fprintf() and stdout or
stderr, or monitor_fprintf() and the current monitor cast to FILE *.
monitor_fprintf() casts it right back, and is otherwise identical to
monitor_printf().  The type-punning is ugly.

New qemu_fprintf() and qemu_vprintf() address this need without type
punning: they are like fprintf() and vfprintf(), except they print to
the current monitor when passed a null FILE *.  The next commits will
put them to use.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20190417191805.28198-14-armbru@redhat.com>
2019-04-18 22:18:59 +02:00
Markus Armbruster ac7ff4cf5f qsp: Simplify how qsp_report() prints
qsp_report() takes an fprintf()-like callback and a FILE * to pass to
it.

Its only caller hmp_sync_profile() passes monitor_fprintf() and the
current monitor cast to FILE *.  monitor_fprintf() casts it right
back, and is otherwise identical to monitor_printf().  The
type-punning is ugly.

Drop the callback, and call qemu_printf() instead.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20190417191805.28198-7-armbru@redhat.com>
2019-04-18 22:18:59 +02:00
Markus Armbruster 15ce35fcf1 include: Include fprintf-fn.h only where needed
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20190417191805.28198-2-armbru@redhat.com>
2019-04-18 22:18:59 +02:00
Markus Armbruster 637de4dba2 qemu-print: New qemu_printf(), qemu_vprintf() etc.
We commonly want to print to the current monitor if we have one, else
to stdout/stderr.  For stderr, have error_printf().  For stdout, all
we have is monitor_vfprintf(), which is rather unwieldy.  We often
print to stderr just because error_printf() is easier.

New qemu_printf() and qemu_vprintf() do exactly what's needed.  The
next commits will put them to use.

Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20190417190641.26814-12-armbru@redhat.com>
2019-04-18 22:18:59 +02:00
Markus Armbruster 679cb8e1a1 monitor error: Make printf()-like functions return a value
printf() & friends return the number of characters written on success,
negative value on error.

monitor_printf(), monitor_vfprintf(), monitor_vprintf(),
error_printf(), error_printf_unless_qmp(), error_vprintf(), and
error_vprintf_unless_qmp() return void.  Some of them carry a TODO
comment asking for int instead.

Improve them to return int like printf() does.

This makes our use of monitor_printf() as fprintf_function slightly
less dirty: the function cast no longer adds a return value that isn't
there.  It still changes a parameter's pointer type.  That will be
addressed in a future commit.

monitor_vfprintf() always returns zero.  Improve it to return the
proper value.

Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20190417190641.26814-11-armbru@redhat.com>
2019-04-18 22:18:59 +02:00
Christophe Fergeau f5852efa29 log: Make glib logging go through QEMU
This commit adds a error_init() helper which calls
g_log_set_default_handler() so that glib logs (g_log, g_warning, ...)
are handled similarly to other QEMU logs. This means they will get a
timestamp if timestamps are enabled, and they will go through the
HMP monitor if one is configured.

This commit also adds a call to error_init() to the binaries
installed by QEMU. Since error_init() also calls error_set_progname(),
this means that *-linux-user, *-bsd-user and qemu-pr-helper messages
output with error_report, info_report, ... will slightly change: they
will be prefixed by the binary name.

glib debug messages are enabled through G_MESSAGES_DEBUG similarly to
the glib default log handler.

At the moment, this change will mostly impact SPICE logging if your
spice version is >= 0.14.1. With older spice versions, this is not going
to work as expected, but will not have any ill effect, so this call is
not conditional on the SPICE version.

Signed-off-by: Christophe Fergeau <cfergeau@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20190131164614.19209-3-cfergeau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2019-04-17 19:08:27 +02:00
Peter Maydell 77b1757090 include/qemu/bswap.h: Use __builtin_memcpy() in accessor functions
In the accessor functions ld*_he_p() and st*_he_p() we use memcpy()
to perform a load or store to a pointer which might not be aligned
for the size of the type. We rely on the compiler to optimize this
memcpy() into an efficient load or store instruction where possible.
This is required for good performance, but at the moment it is also
required for correct operation, because some users of these functions
require that the access is atomic if the pointer is aligned, which
will only be the case if the compiler has optimized out the memcpy().
(The particular example where we discovered this is the virtio
vring_avail_idx() which calls virtio_lduw_phys_cached() which
eventually ends up calling lduw_he_p().)

Unfortunately some compile environments, such as the fortify-source
setup used in Alpine Linux, define memcpy() to a wrapper function
in a way that inhibits this compiler optimization.

The correct long-term fix here is to add a set of functions for
doing atomic accesses into AddressSpaces (and to other relevant
families of accessor functions like the virtio_*_phys_cached()
ones), and make sure that callsites which want atomic behaviour
use the correct functions.

In the meantime, switch to using __builtin_memcpy() in the
bswap.h accessor functions. This will make us robust against things
like this fortify library in the short term. In the longer term
it will mean that we don't end up with these functions being really
badly-performing even if the semantics of the out-of-line memcpy()
are correct.

Reported-by: Fernando Casas Schössow <casasfernando@outlook.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20190318112938.8298-1-peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-04-09 18:34:21 +02:00
Daniel P. Berrangé b4682a63f8 filemon: fix watch IDs to avoid potential wraparound issues
Watch IDs are allocated from incrementing a int counter against
the QFileMonitor object. In very long life QEMU processes with
a huge amount of USB MTP activity creating & deleting directories
it is just about conceivable that the int counter can wrap
around. This would result in incorrect behaviour of the file
monitor watch APIs due to clashing watch IDs.

Instead of trying to detect this situation, this patch changes
the way watch IDs are allocated. It is turned into an int64_t
variable where the high 32 bits are set from the underlying
inotify "int" ID. This gives an ID that is guaranteed unique
for the directory as a whole, and we can rely on the kernel
to enforce this. QFileMonitor then sets the low 32 bits from
a per-directory counter.

The USB MTP device only sets watches on the directory as a
whole, not files within, so there is no risk of guest
triggered wrap around on the low 32 bits.

Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2019-04-02 13:52:02 +01:00
Stefan Hajnoczi 314aec4a6e hostmem-file: reject invalid pmem file sizes
Guests started with NVDIMMs larger than the underlying host file produce
confusing errors inside the guest.  This happens because the guest
accesses pages beyond the end of the file.

Check the pmem file size on startup and print a clear error message if
the size is invalid.

Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1669053
Cc: Wei Yang <richardw.yang@linux.intel.com>
Cc: Zhang Yi <yi.z.zhang@linux.intel.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20190214031004.32522-3-stefanha@redhat.com>
Reviewed-by: Wei Yang <richardw.yang@linux.intel.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Pankaj Gupta <pagupta@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2019-03-11 10:44:19 -03:00
Emanuele Giuseppe Esposito fc281c8020 tests: qgraph API for the qtest driver framework
Add qgraph API that allows to add/remove nodes and edges from the graph,
implementation of Depth First Search to discover the paths and basic unit
test to check correctness of the API.
Included also a main executable that takes care of starting the framework,
create the nodes, set the available drivers/machines, discover the path and
run tests.

graph.h provides the public API to manage the graph nodes/edges
graph_extra.h provides a more private API used successively by the gtest integration part
qos-test.c provides the main executable

Signed-off-by: Emanuele Giuseppe Esposito <e.emanuelegiuseppe@gmail.com>
[Paolo's changes compared to the Google Summer of Code submission:
 * added subprocess to test options
 * refactored object creation to support live migration tests
 * removed driver .before callback (unused)
 * removed test .after callbacks (replaced by GTest destruction queue)]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-03-07 17:28:24 +01:00
Peter Maydell c557a8c7b7 Migation pull 2019-03-06
(This replaces the pull sent yesterday)
 
    a) 4 small fixes including the cancel problem
      that caused the ahci migration test to fail
      intermittently
    b) Yury's ignore-shared feature
    c) Juan's extra tests
    d) Wei Wang's free page hinting
    e) Some Colo fixes from Zhang Chen
 
 Diff from yesterdays pull:
   1) A missing fix of mine (cleanup during exit)
   2) Changes from Eric/Markus on 'Create socket-address parameter'
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Merge remote-tracking branch 'remotes/dgilbert/tags/pull-migration-20190306a' into staging

Migation pull 2019-03-06

(This replaces the pull sent yesterday)

   a) 4 small fixes including the cancel problem
     that caused the ahci migration test to fail
     intermittently
   b) Yury's ignore-shared feature
   c) Juan's extra tests
   d) Wei Wang's free page hinting
   e) Some Colo fixes from Zhang Chen

Diff from yesterdays pull:
  1) A missing fix of mine (cleanup during exit)
  2) Changes from Eric/Markus on 'Create socket-address parameter'

# gpg: Signature made Wed 06 Mar 2019 11:39:53 GMT
# gpg:                using RSA key 0516331EBC5BFDE7
# gpg: Good signature from "Dr. David Alan Gilbert (RH2) <dgilbert@redhat.com>" [full]
# Primary key fingerprint: 45F5 C71B 4A0C B7FB 977A  9FA9 0516 331E BC5B FDE7

* remotes/dgilbert/tags/pull-migration-20190306a: (22 commits)
  qapi/migration.json: Remove a variable that doesn't exist in example
  Migration/colo.c: Make COLO node running after failover
  Migration/colo.c: Fix double close bug when occur COLO failover
  virtio-balloon: VIRTIO_BALLOON_F_FREE_PAGE_HINT
  migration/ram.c: add the free page optimization enable flag
  migration/ram.c: add a notifier chain for precopy
  migration: API to clear bits of guest free pages from the dirty bitmap
  migration: use bitmap_mutex in migration_bitmap_clear_dirty
  bitmap: bitmap_count_one_with_offset
  bitmap: fix bitmap_count_one
  tests: Add basic migration precopy tcp test
  migration: Create socket-address parameter
  tests: Add migration xbzrle test
  migration: Add capabilities validation
  tests/migration-test: Add a test for ignore-shared capability
  migration: Add an ability to ignore shared RAM blocks
  migration: Introduce ignore-shared capability
  exec: Change RAMBlockIterFunc definition
  migration/rdma: clang compilation fix
  migration: Cleanup during exit
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-03-06 14:50:33 +00:00
Wei Wang 94960256ae bitmap: bitmap_count_one_with_offset
Count the number of 1s in a bitmap starting from an offset.

Signed-off-by: Wei Wang <wei.w.wang@intel.com>
CC: Dr. David Alan Gilbert <dgilbert@redhat.com>
CC: Juan Quintela <quintela@redhat.com>
CC: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <1544516693-5395-3-git-send-email-wei.w.wang@intel.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2019-03-06 10:49:17 +00:00
Wei Wang e7c91368d2 bitmap: fix bitmap_count_one
BITMAP_LAST_WORD_MASK(nbits) returns 0xffffffff when "nbits=0", which
makes bitmap_count_one fail to handle the "nbits=0" case. It appears to be
preferred to remain BITMAP_LAST_WORD_MASK identical to the kernel
implementation that it is ported from.

So this patch fixes bitmap_count_one to handle the nbits=0 case.

Inital Discussion Link:
https://www.mail-archive.com/qemu-devel@nongnu.org/msg554316.html
Signed-off-by: Wei Wang <wei.w.wang@intel.com>
CC: Juan Quintela <quintela@redhat.com>
CC: Dr. David Alan Gilbert <dgilbert@redhat.com>
CC: Peter Xu <peterx@redhat.com>
Message-Id: <1544516693-5395-2-git-send-email-wei.w.wang@intel.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2019-03-06 10:49:17 +00:00
Greg Kurz acfea13780 bswap: Fix accessors syntax in comment
All accessors that have an endian infix DO have an underscore between
{size} and {endian}.

Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <155119086741.1037569.12734854713022304642.stgit@bahia.lan>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-03-06 10:45:06 +01:00
Dr. David Alan Gilbert 50510ea2c2 net: Introduce announce timer
The 'announce timer' will be used by migration, and explicit
requests for qemu to perform network announces.

Based on the work by Germano Veit Michel <germano@redhat.com>
 and Vlad Yasevich <vyasevic@redhat.com>

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2019-03-05 11:27:41 +08:00
Daniel P. Berrange b76806d4ec authz: delete existing ACL implementation
The 'qemu_acl' type was a previous non-QOM based attempt to provide an
authorization facility in QEMU. Because it is non-QOM based it cannot be
created via the command line and requires special monitor commands to
manipulate it.

The new QAuthZ subclasses provide a superset of the functionality in
qemu_acl, so the latter can now be deleted. The HMP 'acl_*' monitor
commands are converted to use the new QAuthZSimple data type instead
in order to provide temporary backwards compatibility.

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2019-02-26 15:32:19 +00:00
Daniel P. Berrangé 90e33dfec6 util: add helper APIs for dealing with inotify in portable manner
The inotify userspace API for reading events is quite horrible, so it is
useful to wrap it in a more friendly API to avoid duplicating code
across many users in QEMU. Wrapping it also allows introduction of a
platform portability layer, so that we can add impls for non-Linux based
equivalents in future.

Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2019-02-26 15:25:58 +00:00
Vladimir Sementsov-Ogievskiy a1ca3ed5ec block: enhance QEMUIOVector structure
Add a possibility of embedded iovec, for cases when we need only one
local iov.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20190218140926.333779-2-vsementsov@virtuozzo.com
Message-Id: <20190218140926.333779-2-vsementsov@virtuozzo.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2019-02-22 09:42:13 +00:00
Marc-André Lureau 1ab67b98cd slirp: replace global polling with per-instance & notifier
Remove hard-coded dependency on slirp in main-loop, and use a "poll"
notifier instead. The notifier is registered per slirp instance.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-02-07 15:49:08 +02:00
Peter Maydell 713acc316d Queued accel/tcg patches
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Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20190206' into staging

Queued accel/tcg patches

# gpg: Signature made Wed 06 Feb 2019 03:42:52 GMT
# gpg:                using RSA key 64DF38E8AF7E215F
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A  05C0 64DF 38E8 AF7E 215F

* remotes/rth/tags/pull-tcg-20190206:
  accel/tcg: Consider cluster index in tb_lookup__cpu_state()
  tcg: add early clober modifier in atomic16_cmpxchg on aarch64

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-07 11:46:40 +00:00
Catherine Ho 7400d6938c tcg: add early clober modifier in atomic16_cmpxchg on aarch64
Without this patch, gcc might up the Input/Output registers and
cause unpredictable error.

Fixes: 1ec182c333 ("target/arm: Convert to HAVE_CMPXCHG128")

Signed-off-by: Catherine Ho <catherine.hecx@gmail.com>
Message-Id: <1548838794-23757-1-git-send-email-catherine.hecx@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-02-06 03:38:39 +00:00
Paolo Bonzini 5ed76a4c63 queue: fix QTAILQ_FOREACH_REVERSE_SAFE
The iteration was stopping as soon as prev_var was set to NULL, and
therefore it skipped the first element.  Fortunately, or unfortunately,
we have only one use of QTAILQ_FOREACH_REVERSE_SAFE.  Thus this only
showed up as incorrect register preferences on the very first translation
block that was compiled.

Reported-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Emilio G. Cota <cota@braap.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-02-05 16:50:21 +01:00
Murilo Opsfelder Araujo 53adb9d43e mmap-alloc: fix hugetlbfs misaligned length in ppc64
The commit 7197fb4058 ("util/mmap-alloc:
fix hugetlb support on ppc64") fixed Huge TLB mappings on ppc64.

However, we still need to consider the underlying huge page size
during munmap() because it requires that both address and length be a
multiple of the underlying huge page size for Huge TLB mappings.
Quote from "Huge page (Huge TLB) mappings" paragraph under NOTES
section of the munmap(2) manual:

  "For munmap(), addr and length must both be a multiple of the
  underlying huge page size."

On ppc64, the munmap() in qemu_ram_munmap() does not work for Huge TLB
mappings because the mapped segment can be aligned with the underlying
huge page size, not aligned with the native system page size, as
returned by getpagesize().

This has the side effect of not releasing huge pages back to the pool
after a hugetlbfs file-backed memory device is hot-unplugged.

This patch fixes the situation in qemu_ram_mmap() and
qemu_ram_munmap() by considering the underlying page size on ppc64.

After this patch, memory hot-unplug releases huge pages back to the
pool.

Fixes: 7197fb4058
Signed-off-by: Murilo Opsfelder Araujo <muriloo@linux.ibm.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-02-04 18:44:20 +11:00
Markus Armbruster 14632122b8 block: Eliminate the S_1KiB, S_2KiB, ... macros
We define 54 macros for the powers of two >= 1024.  We use six, in six
macro definitions.  Four of them could just as well use the common MiB
macro, so do that.  The remaining two can't, because they get passed
to stringify.  Replace the macro by the literal number there.
Slightly harder to read in one instance (1048576 vs. S_1MiB), so add a
comment there.  The other instance is a wash: 65536 vs S_64KiB.  65536
has been good enough for more than seven years there.

This effectively reverts commit 540b849261 and 1240ac558d.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-02-01 13:46:45 +01:00
Peter Maydell 1324f06384 uuid: Make qemu_uuid_bswap() take and return a QemuUUID
Currently qemu_uuid_bswap() takes a pointer to the QemuUUID to
be byte-swapped. This means it can't be used when the UUID
to be swapped is in a packed member of a struct. It's also
out of line with the general bswap*() functions we provide
in bswap.h, which take the value to be swapped and return it.

Make qemu_uuid_bswap() take a QemuUUID and return the swapped version.

This fixes some clang warnings about taking the address of
a packed struct member in block/vdi.c.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-02-01 13:46:45 +01:00
Peter Maydell cfe6c54769 Block patches:
- New debugging QMP command to explore block graphs
 - Converted DPRINTF()s to trace events
 - Fixed qemu-io's use of getopt() for systems with optreset
 - Minor NVMe emulation fixes
 - An iotest fix
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Merge remote-tracking branch 'remotes/xanclic/tags/pull-block-2019-01-31' into staging

Block patches:
- New debugging QMP command to explore block graphs
- Converted DPRINTF()s to trace events
- Fixed qemu-io's use of getopt() for systems with optreset
- Minor NVMe emulation fixes
- An iotest fix

# gpg: Signature made Thu 31 Jan 2019 00:51:46 GMT
# gpg:                using RSA key F407DB0061D5CF40
# gpg: Good signature from "Max Reitz <mreitz@redhat.com>" [full]
# Primary key fingerprint: 91BE B60A 30DB 3E88 57D1  1829 F407 DB00 61D5 CF40

* remotes/xanclic/tags/pull-block-2019-01-31:
  iotests: Allow 147 to be run concurrently
  iotests: Bind qemu-nbd to localhost in 147
  iotests.py: Add qemu_nbd_pipe()
  nvme: use pci_dev directly in nvme_realize
  nvme: ensure the num_queues is not zero
  nvme: use TYPE_NVME instead of constant string
  qemu-io: Add generic function for reinitializing optind.
  block/sheepdog: Convert from DPRINTF() macro to trace events
  block/file-posix: Convert from DPRINTF() macro to trace events
  block/curl: Convert from DPRINTF() macro to trace events
  block/ssh: Convert from DPRINTF() macro to trace events
  scripts: add render_block_graph function for QEMUMachine
  qapi: add x-debug-query-block-graph

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-01-31 19:26:09 +00:00
Richard W.M. Jones d339d766d1 qemu-io: Add generic function for reinitializing optind.
On FreeBSD 11.2:

  $ nbdkit memory size=1M --run './qemu-io -f raw -c "aio_write 0 512" $nbd'
  Parsing error: non-numeric argument, or extraneous/unrecognized suffix -- aio_write

After main option parsing, we reinitialize optind so we can parse each
command.  However reinitializing optind to 0 does not work on FreeBSD.
What happens when you do this is optind remains 0 after the option
parsing loop, and the result is we try to parse argv[optind] ==
argv[0] == "aio_write" as if it was the first parameter.

The FreeBSD manual page says:

  In order to use getopt() to evaluate multiple sets of arguments, or to
  evaluate a single set of arguments multiple times, the variable optreset
  must be set to 1 before the second and each additional set of calls to
  getopt(), and the variable optind must be reinitialized.

(From the rest of the man page it is clear that optind must be
reinitialized to 1).

The glibc man page says:

  A program that scans multiple argument vectors,  or  rescans  the  same
  vector  more than once, and wants to make use of GNU extensions such as
  '+' and '-' at  the  start  of  optstring,  or  changes  the  value  of
  POSIXLY_CORRECT  between scans, must reinitialize getopt() by resetting
  optind to 0, rather than the traditional value of 1.  (Resetting  to  0
  forces  the  invocation  of  an  internal  initialization  routine that
  rechecks POSIXLY_CORRECT and checks for GNU extensions in optstring.)

This commit introduces an OS-portability function called
qemu_reset_optind which provides a way of resetting optind that works
on FreeBSD and platforms that use optreset, while keeping it the same
as now on other platforms.

Note that the qemu codebase sets optind in many other places, but in
those other places it's setting a local variable and not using getopt.
This change is only needed in places where we are using getopt and the
associated global variable optind.

Signed-off-by: Richard W.M. Jones <rjones@redhat.com>
Message-id: 20190118101114.11759-2-rjones@redhat.com
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-01-31 00:38:19 +01:00
Thomas Huth e361a772ff Don't talk about the LGPL if the file is licensed under the GPL
Some files claim that the code is licensed under the GPL, but then
suddenly suggest that the user should have a look at the LGPL.
That's of course non-sense, replace it with the correct GPL wording
instead.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1548255083-8190-1-git-send-email-thuth@redhat.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-01-30 10:51:20 +01:00
Thomas Huth 798b858130 linux-user: Fix compilation with clang 3.4
Clang version 3.4.2 does not know the -Wpragmas option yet and bails
out with an error when we try to disable it in linux-user/qemu.h.
Fortunately, clang has a __has_warning() macro which allows us to add
an explicit check for the option that we want to ignore. With that we
can check for the availability of "-Waddress-of-packed-member" properly
and do not need the "-Wpragmas" at all here.

Fixes: 850d5e330a
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2019-01-22 06:26:31 +01:00
Philippe Mathieu-Daudé 0a323e66b5 ui/console: Remove PixelFormat from qemu/typedefs.h
Header files requiring PixelFormat already include "ui/qemu-pixman.h".

To clean "qemu/typedefs.h", move the declaration to "ui/qemu-pixman.h"
(removing the forward declaration).

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2019-01-22 05:14:33 +01:00
Philippe Mathieu-Daudé 5a4c2e5905 ui/console: Remove MouseTransformInfo from qemu/typedefs.h
Header files requiring MouseTransformInfo already include "ui/console.h".

To clean "qemu/typedefs.h", move the declaration to "ui/console.h"
(removing the forward declaration).

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2019-01-22 05:14:33 +01:00
Philippe Mathieu-Daudé 7536587c07 ui/console: Remove DisplayState/DisplaySurface from "qemu/typedefs.h"
Files requiring DisplayState/DisplaySurface already include "ui/console.h".

To clean "qemu/typedefs.h", move the declarations to "ui/console.h"
(removing DisplaySurface forward declaration).

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2019-01-22 05:14:33 +01:00
Philippe Mathieu-Daudé dfbb251e9f ui/console: Remove QemuDmaBuf from "qemu/typedefs.h"
Files requiring QemuDmaBuf already include "ui/console.h".

To clean "qemu/typedefs.h", move the declaration to "ui/console.h"
(removing the forward declaration).

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2019-01-22 05:14:33 +01:00
Philippe Mathieu-Daudé fd5283fb4b audio: Remove AudioState from "qemu/typedefs.h"
Files requiring AudioState already include "audio_int.h".

To clean "qemu/typedefs.h", move the declaration to "audio_int.h"
(removing the forward declaration).

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2019-01-22 05:14:33 +01:00
Philippe Mathieu-Daudé 639f642c60 hw/i386: Remove PCMachineClass from "qemu/typedefs.h"
Files requiring PCMachineClass already include "hw/i386/pc.h".

To clean "qemu/typedefs.h", move the declaration to "hw/i386/pc.h"
(removing the forward declaration).

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2019-01-22 05:14:33 +01:00
Philippe Mathieu-Daudé 1451b40443 hw/char/serial: Remove SerialState from "qemu/typedefs.h"
Files requiring SerialState already include "hw/char/serial.h".

To clean "qemu/typedefs.h", move the declaration to "hw/char/serial.h"
(removing the forward declaration).

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2019-01-22 05:14:33 +01:00
Philippe Mathieu-Daudé bc8c49d34d hw/bt: Remove HCIInfo from "qemu/typedefs.h"
Files requiring HCIInfo already include "sysemu/bt.h".

To clean "qemu/typedefs.h", move the declaration to "sysemu/bt.h"
(removing the forward declaration).

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2019-01-22 05:14:32 +01:00
Philippe Mathieu-Daudé d183b00e8e hw/i2c/smbus: Remove SMBusDevice from "qemu/typedefs.h"
Files requiring SMBusDevice already include "hw/i2c/smbus.h".

To clean "qemu/typedefs.h", move the forward declaration
to "hw/i2c/smbus.h".

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2019-01-22 05:14:32 +01:00
Philippe Mathieu-Daudé a8b56ec836 hw/ide/ahci: Remove AllwinnerAHCIState from "qemu/typedefs.h"
Files requiring AllwinnerAHCIState already include "hw/ide/ahci.h".

To clean "qemu/typedefs.h", move the declaration to "hw/ide/ahci.h"
(removing the forward declaration).

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2019-01-22 05:14:32 +01:00
Philippe Mathieu-Daudé 2274e7ddd1 hw/pcmcia: Remove PCMCIACardState from "qemu/typedefs.h"
There is only one header file requiring this typedef (hw/arm/pxa.h),
let it include "hw/pcmcia.h" directly to simplify "qemu/typedefs.h".

To clean "qemu/typedefs.h", move the declaration to "hw/pcmcia.h"
(removing the forward declaration).

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
[thuth: slightly tweaked commit message]
Signed-off-by: Thomas Huth <thuth@redhat.com>
2019-01-22 05:14:32 +01:00
Philippe Mathieu-Daudé fa9414e969 hw/input/ps2: Remove PS2State from "qemu/typedefs.h"
PS2State is only used in "hw/input/ps2.h", there is no
need to expose it via "qemu/typedefs.h".

To clean "qemu/typedefs.h", move the forward declaration
to "hw/input/ps2.h".

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2019-01-22 05:14:32 +01:00
Peter Maydell 51c1c13560 pci, pc, virtio: fixes, features
tpm physical presence interface
 rsc support in virtio net
 ivshmem is removed
 misc cleanups and fixes all over the place
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

pci, pc, virtio: fixes, features

tpm physical presence interface
rsc support in virtio net
ivshmem is removed
misc cleanups and fixes all over the place

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Fri 18 Jan 2019 02:11:11 GMT
# gpg:                using RSA key 281F0DB8D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>"
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* remotes/mst/tags/for_upstream: (49 commits)
  migration: Use strnlen() for fixed-size string
  migration: Fix stringop-truncation warning
  hw/acpi: Use QEMU_NONSTRING for non NUL-terminated arrays
  block/sheepdog: Use QEMU_NONSTRING for non NUL-terminated arrays
  qemu/compiler: Define QEMU_NONSTRING
  acpi: update expected files
  hw: acpi: Fix memory hotplug AML generation error
  tpm: clear RAM when "memory overwrite" requested
  acpi: add ACPI memory clear interface
  acpi: build TPM Physical Presence interface
  acpi: expose TPM/PPI configuration parameters to firmware via fw_cfg
  tpm: allocate/map buffer for TPM Physical Presence interface
  tpm: add a "ppi" boolean property
  hw/misc/edu: add msi_uninit() for pci_edu_uninit()
  virtio: Make disable-legacy/disable-modern compat properties optional
  globals: Allow global properties to be optional
  virtio: virtio 9p really requires CONFIG_VIRTFS to work
  virtio: split virtio crypto bits from virtio-pci.h
  virtio: split virtio gpu bits from virtio-pci.h
  virtio: split virtio serial bits from virtio-pci
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-01-18 14:58:58 +00:00
Philippe Mathieu-Daudé 1daff2f819 qemu/compiler: Define QEMU_NONSTRING
GCC 8 introduced the -Wstringop-truncation checker to detect truncation by
the strncat and strncpy functions (closely related to -Wstringop-overflow,
which detect buffer overflow by string-modifying functions declared in
<string.h>).

In tandem of -Wstringop-truncation, the "nonstring" attribute was added:

  The nonstring variable attribute specifies that an object or member
  declaration with type array of char, signed char, or unsigned char,
  or pointer to such a type is intended to store character arrays that
  do not necessarily contain a terminating NUL. This is useful in detecting
  uses of such arrays or pointers with functions that expect NUL-terminated
  strings, and to avoid warnings when such an array or pointer is used as
  an argument to a bounded string manipulation function such as strncpy.

  From the GCC manual: https://gcc.gnu.org/onlinedocs/gcc/Common-Variable-Attributes.html#index-nonstring-variable-attribute

Add the QEMU_NONSTRING macro which checks if the compiler supports this
attribute.

Suggested-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-01-17 21:10:57 -05:00
Vladimir Sementsov-Ogievskiy 19c021e194 Revert "hbitmap: Add @advance param to hbitmap_iter_next()"
This reverts commit a33fbb4f8b.

The functionality is unused.

Note: in addition to automatic revert, drop second parameter in
hbitmap_iter_next() call from hbitmap_next_dirty_area() too.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: John Snow <jsnow@redhat.com>
2019-01-15 18:26:50 -05:00
Vladimir Sementsov-Ogievskiy a78a1a48cd dirty-bitmap: add bdrv_dirty_bitmap_next_dirty_area
The function alters bdrv_dirty_iter_next_area(), which is wrong and
less efficient (see further commit
"block/mirror: fix and improve do_sync_target_write" for description).

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
2019-01-15 18:26:50 -05:00
Vladimir Sementsov-Ogievskiy 76d570dc49 dirty-bitmap: improve bdrv_dirty_bitmap_next_zero
Add bytes parameter to the function, to limit searched range.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
2019-01-15 18:26:49 -05:00
Paul Durrant a783f8ad4e xen: add a mechanism to automatically create XenDevice-s...
...that maintains compatibility with existing Xen toolstacks.

Xen toolstacks instantiate PV backends by simply writing information into
xenstore and expecting a backend implementation to be watching for this.

This patch adds a new 'xen-backend' module to allow individual XenDevice
implementations to register create and destroy functions. The creator
will be called when a tool-stack instantiates a new backend in this way,
and the destructor will then be called after the resulting XenDevice
object is unrealized.

To support this it is also necessary to add new watchers into the XenBus
implementation to handle enumeration of new backends and also destruction
of XenDevice-s when the toolstack sets the backend 'online' key to 0.

NOTE: This patch only adds the framework. A subsequent patch will add a
      creator function for xen-block devices.

Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Reviewed-by: Anthony Perard <anthony.perard@citrix.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
2019-01-14 13:45:40 +00:00
Peter Maydell 15bede5541 * HAX support for Linux hosts (Alejandro)
* esp bugfixes (Guenter)
 * Windows build cleanup (Marc-André)
 * checkpatch logic improvements (Paolo)
 * coalesced range bugfix (Paolo)
 * switch testsuite to TAP (Paolo)
 * QTAILQ rewrite (Paolo)
 * block/iscsi.c cancellation fixes (Stefan)
 * improve selection of the default accelerator (Thomas)
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* HAX support for Linux hosts (Alejandro)
* esp bugfixes (Guenter)
* Windows build cleanup (Marc-André)
* checkpatch logic improvements (Paolo)
* coalesced range bugfix (Paolo)
* switch testsuite to TAP (Paolo)
* QTAILQ rewrite (Paolo)
* block/iscsi.c cancellation fixes (Stefan)
* improve selection of the default accelerator (Thomas)

# gpg: Signature made Fri 11 Jan 2019 14:47:40 GMT
# gpg:                using RSA key BFFBD25F78C7AE83
# 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

* remotes/bonzini/tags/for-upstream: (34 commits)
  avoid TABs in files that only contain a few
  remove space-tab sequences
  scripts: add script to convert multiline comments into 4-line format
  hw/watchdog/wdt_i6300esb: remove a unnecessary comment
  checkpatch: warn about qemu/queue.h head structs that are not typedef-ed
  qemu/queue.h: simplify reverse access to QTAILQ
  qemu/queue.h: reimplement QTAILQ without pointer-to-pointers
  qemu/queue.h: remove Q_TAILQ_{HEAD,ENTRY}
  qemu/queue.h: typedef QTAILQ heads
  qemu/queue.h: leave head structs anonymous unless necessary
  vfio: make vfio_address_spaces static
  qemu/queue.h: do not access tqe_prev directly
  test: replace gtester with a TAP driver
  test: execute g_test_run when tests are skipped
  qga: drop < Vista compatibility
  build-sys: build with Vista API by default
  build-sys: move windows defines in osdep.h header
  build-sys: don't include windows.h, osdep.h does it
  scsi: esp: Defer command completion until previous interrupts have been handled
  esp-pci: Fix status register write erase control
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-01-11 15:46:09 +00:00
Paolo Bonzini 7d37435bd5 avoid TABs in files that only contain a few
Most files that have TABs only contain a handful of them.  Change
them to spaces so that we don't confuse people.

disas, standard-headers, linux-headers and libdecnumber are imported
from other projects and probably should be exempted from the check.
Outside those, after this patch the following files still contain both
8-space and TAB sequences at the beginning of the line.  Many of them
have a majority of TABs, or were initially committed with all tabs.

    bsd-user/i386/target_syscall.h
    bsd-user/x86_64/target_syscall.h
    crypto/aes.c
    hw/audio/fmopl.c
    hw/audio/fmopl.h
    hw/block/tc58128.c
    hw/display/cirrus_vga.c
    hw/display/xenfb.c
    hw/dma/etraxfs_dma.c
    hw/intc/sh_intc.c
    hw/misc/mst_fpga.c
    hw/net/pcnet.c
    hw/sh4/sh7750.c
    hw/timer/m48t59.c
    hw/timer/sh_timer.c
    include/crypto/aes.h
    include/disas/bfd.h
    include/hw/sh4/sh.h
    libdecnumber/decNumber.c
    linux-headers/asm-generic/unistd.h
    linux-headers/linux/kvm.h
    linux-user/alpha/target_syscall.h
    linux-user/arm/nwfpe/double_cpdo.c
    linux-user/arm/nwfpe/fpa11_cpdt.c
    linux-user/arm/nwfpe/fpa11_cprt.c
    linux-user/arm/nwfpe/fpa11.h
    linux-user/flat.h
    linux-user/flatload.c
    linux-user/i386/target_syscall.h
    linux-user/ppc/target_syscall.h
    linux-user/sparc/target_syscall.h
    linux-user/syscall.c
    linux-user/syscall_defs.h
    linux-user/x86_64/target_syscall.h
    slirp/cksum.c
    slirp/if.c
    slirp/ip.h
    slirp/ip_icmp.c
    slirp/ip_icmp.h
    slirp/ip_input.c
    slirp/ip_output.c
    slirp/mbuf.c
    slirp/misc.c
    slirp/sbuf.c
    slirp/socket.c
    slirp/socket.h
    slirp/tcp_input.c
    slirp/tcpip.h
    slirp/tcp_output.c
    slirp/tcp_subr.c
    slirp/tcp_timer.c
    slirp/tftp.c
    slirp/udp.c
    slirp/udp.h
    target/cris/cpu.h
    target/cris/mmu.c
    target/cris/op_helper.c
    target/sh4/helper.c
    target/sh4/op_helper.c
    target/sh4/translate.c
    tcg/sparc/tcg-target.inc.c
    tests/tcg/cris/check_addo.c
    tests/tcg/cris/check_moveq.c
    tests/tcg/cris/check_swap.c
    tests/tcg/multiarch/test-mmap.c
    ui/vnc-enc-hextile-template.h
    ui/vnc-enc-zywrle.h
    util/envlist.c
    util/readline.c

The following have only TABs:

    bsd-user/i386/target_signal.h
    bsd-user/sparc64/target_signal.h
    bsd-user/sparc64/target_syscall.h
    bsd-user/sparc/target_signal.h
    bsd-user/sparc/target_syscall.h
    bsd-user/x86_64/target_signal.h
    crypto/desrfb.c
    hw/audio/intel-hda-defs.h
    hw/core/uboot_image.h
    hw/sh4/sh7750_regnames.c
    hw/sh4/sh7750_regs.h
    include/hw/cris/etraxfs_dma.h
    linux-user/alpha/termbits.h
    linux-user/arm/nwfpe/fpopcode.h
    linux-user/arm/nwfpe/fpsr.h
    linux-user/arm/syscall_nr.h
    linux-user/arm/target_signal.h
    linux-user/cris/target_signal.h
    linux-user/i386/target_signal.h
    linux-user/linux_loop.h
    linux-user/m68k/target_signal.h
    linux-user/microblaze/target_signal.h
    linux-user/mips64/target_signal.h
    linux-user/mips/target_signal.h
    linux-user/mips/target_syscall.h
    linux-user/mips/termbits.h
    linux-user/ppc/target_signal.h
    linux-user/sh4/target_signal.h
    linux-user/sh4/termbits.h
    linux-user/sparc64/target_syscall.h
    linux-user/sparc/target_signal.h
    linux-user/x86_64/target_signal.h
    linux-user/x86_64/termbits.h
    pc-bios/optionrom/optionrom.h
    slirp/mbuf.h
    slirp/misc.h
    slirp/sbuf.h
    slirp/tcp.h
    slirp/tcp_timer.h
    slirp/tcp_var.h
    target/i386/svm.h
    target/sparc/asi.h
    target/xtensa/core-dc232b/xtensa-modules.inc.c
    target/xtensa/core-dc233c/xtensa-modules.inc.c
    target/xtensa/core-de212/core-isa.h
    target/xtensa/core-de212/xtensa-modules.inc.c
    target/xtensa/core-fsf/xtensa-modules.inc.c
    target/xtensa/core-sample_controller/core-isa.h
    target/xtensa/core-sample_controller/xtensa-modules.inc.c
    target/xtensa/core-test_kc705_be/core-isa.h
    target/xtensa/core-test_kc705_be/xtensa-modules.inc.c
    tests/tcg/cris/check_abs.c
    tests/tcg/cris/check_addc.c
    tests/tcg/cris/check_addcm.c
    tests/tcg/cris/check_addoq.c
    tests/tcg/cris/check_bound.c
    tests/tcg/cris/check_ftag.c
    tests/tcg/cris/check_int64.c
    tests/tcg/cris/check_lz.c
    tests/tcg/cris/check_openpf5.c
    tests/tcg/cris/check_sigalrm.c
    tests/tcg/cris/crisutils.h
    tests/tcg/cris/sys.c
    tests/tcg/i386/test-i386-ssse3.c
    ui/vgafont.h

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20181213223737.11793-3-pbonzini@redhat.com>
Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Eric Blake <eblake@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Stefan Markovic <smarkovic@wavecomp.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-01-11 15:46:56 +01:00
Paolo Bonzini eae3eb3e18 qemu/queue.h: simplify reverse access to QTAILQ
The new definition of QTAILQ does not require passing the headname,
remove it.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-01-11 15:46:55 +01:00
Paolo Bonzini 7274f01bb8 qemu/queue.h: reimplement QTAILQ without pointer-to-pointers
QTAILQ is a doubly linked list, with a pointer-to-pointer to the last
element from the head, and the previous element from each node.

But if you squint enough, QTAILQ becomes a combination of a singly-linked
forwards list, and another singly-linked list which goes backwards and
is circular.  This is the idea that lets QTAILQ implement reverse
iteration: only, because the backwards list points inside the node,
accessing the previous element needs to go two steps back and one
forwards.

What this patch does is implement it in these terms, without actually
changing the in-memory layout at all.  The coexistence of the two lists
is realized by making QTAILQ_HEAD and QTAILQ_ENTRY unions of the forwards
pointer and a generic QTailQLink node.  Thq QTailQLink can walk the list in
both directions; the union is needed so that the forwards pointer can
have the correct type, as a sort of poor man's template.  While there
are other ways to get the same layout without a union, this one has
the advantage of simpler operation in the debugger, because the fields
tqh_first and tqe_next still exist as before the patch.  Those fields are
also used by scripts/qemugdb/mtree.py, so it's a good idea to preserve them.

The advantage of the new representation is that the two-back-one-forward
dance done by backwards accesses can be done all while operating on
QTailQLinks.  No casting to the head struct is needed anymore because,
even though the QTailQLink's forward pointer is a void *, we can use
typeof to recover the correct type.  This patch only changes the
implementation, not the interface.  The next patch will remove the head
struct name from the backwards visit macros.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-01-11 15:46:55 +01:00
Paolo Bonzini f95bb39cf1 qemu/queue.h: remove Q_TAILQ_{HEAD,ENTRY}
These are not present for other kinds of queue, and unused.
Zap them before more changes are made to the QTAILQ
implementation.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-01-11 15:46:55 +01:00
Peter Maydell e53f7796fb Machine queue, 2019-01-10
* Simplify GlobalProperty array declarations (Eduardo Habkost)
 * Deprecate cpu-add commands (Kashyap Chamarthy)
 * range/memory-device cleanups (David Hildenbrand)
 * Fix -device scsi-hd,help regression (Marc-André Lureau)
 * Fix crash when -global generates multiple warnings (Eduardo
   Habkost)
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Merge remote-tracking branch 'remotes/ehabkost/tags/machine-next-pull-request' into staging

Machine queue, 2019-01-10

* Simplify GlobalProperty array declarations (Eduardo Habkost)
* Deprecate cpu-add commands (Kashyap Chamarthy)
* range/memory-device cleanups (David Hildenbrand)
* Fix -device scsi-hd,help regression (Marc-André Lureau)
* Fix crash when -global generates multiple warnings (Eduardo
  Habkost)

# gpg: Signature made Thu 10 Jan 2019 14:28:23 GMT
# gpg:                using RSA key 2807936F984DC5A6
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>"
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF  D1AA 2807 936F 984D C5A6

* remotes/ehabkost/tags/machine-next-pull-request:
  qom: Don't keep error value between object_property_parse() calls
  qdev: fix -device scsi-hd,help regression
  machine: Use shorter format for GlobalProperty arrays
  machine: Eliminate unnecessary stringify() usage
  spapr: Eliminate SPAPR_PCI_2_7_MMIO_WIN_SIZE macro
  memory-device: rewrite address assignment using ranges
  range: add some more functions
  Mention that QMP 'cpu-add' will be deprecated
  Update that HMP 'cpu-add' is deprecated in 4.0
  qemu-deprecated.texi: Rename the HMP section

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-01-11 13:35:48 +00:00
Marc-André Lureau 56cdca1d7a build-sys: build with Vista API by default
Both qemu & qga build with Vista API by default already, by defining
_WIN32_WINNT 0x0600. Set it globally in osdep.h instead.

This replaces WINVER by _WIN32_WINNT in osdep.h. WINVER doesn't seem
to be really useful these days.
(see also https://blogs.msdn.microsoft.com/oldnewthing/20070411-00/?p=27283)

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20181122110039.15972-4-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-01-11 13:57:25 +01:00
Marc-André Lureau 007e722c34 build-sys: move windows defines in osdep.h header
This removes some clutter in compilation logging, and allows some
easier tweaking per compilation unit/CFLAGS overriding.

Note that we can't move those define in os-win32.h, since they must be
set before the first system headers are included.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20181122110039.15972-3-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-01-11 13:57:25 +01:00
David Hildenbrand f3b0b626f6 range: add some more functions
Add some more functions that will be used in memory-device context.

range_init(): Init using lower bound and size, check for validity
range_init_nofail(): Init using lower bound and size, validity asserted
range_size(): Extract the size of a range
range_overlaps_range(): Check for overlaps of two ranges
range_contains_range(): Check if one range is contained in the other

Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20181214131043.25071-2-david@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2019-01-09 22:09:31 -02:00
Eric Blake a98c370c46 typedefs: (Re-)sort entries alphabetically
Since the last time we sorted things (2988cbeaf), we've had a
few relapses that were inserted out of order.  Also, we had more
entries that were sorted case-insensitively than not, so let's
document that convention and stick to it.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20181115211752.1295571-2-eblake@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-01-09 11:07:54 +01:00
Paul Burton c5b00c1684 atomics: Set ATOMIC_REG_SIZE=8 for MIPS n32
ATOMIC_REG_SIZE is currently defined as the default sizeof(void *) for
all MIPS host builds, including those using the n32 ABI. n32 is the
MIPS64 ILP32 ABI and as such tcg/mips/tcg-target.h defines
TCG_TARGET_REG_BITS as 64 for n32 builds. If we attempt to build QEMU
for an n32 host with support for a 64b target architecture then
TCG_OVERSIZED_GUEST is 0 and accel/tcg/cputlb.c attempts to use
atomic_* functions. This fails because ATOMIC_REG_SIZE is 4, causing
the calls to QEMU_BUILD_BUG_ON(sizeof(*ptr) > ATOMIC_REG_SIZE) in the
various atomic_* functions to generate errors.

Fix this by defining ATOMIC_REG_SIZE as 8 for all MIPS64 builds, which
will cover both n32 (ILP32) & n64 (LP64) ABIs in much the same was as
we already do for x86_64/x32.

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Paul Burton <pburton@wavecomp.com>
2019-01-03 17:52:52 +01:00
Markus Armbruster b7d89466dd Clean up includes
Clean up includes so that osdep.h is included first and headers
which it implies are not included manually.

This commit was created with scripts/clean-includes, with the changes
to the following files manually reverted:

    contrib/libvhost-user/libvhost-user-glib.h
    contrib/libvhost-user/libvhost-user.c
    contrib/libvhost-user/libvhost-user.h
    linux-user/mips64/cpu_loop.c
    linux-user/mips64/signal.c
    linux-user/sparc64/cpu_loop.c
    linux-user/sparc64/signal.c
    linux-user/x86_64/cpu_loop.c
    linux-user/x86_64/signal.c
    target/s390x/gen-features.c
    tests/migration/s390x/a-b-bios.c
    tests/test-rcu-simpleq.c
    tests/test-rcu-tailq.c

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20181204172535.2799-1-armbru@redhat.com>
Acked-by: Eduardo Habkost <ehabkost@redhat.com>
Acked-by: Halil Pasic <pasic@linux.ibm.com>
Acked-by: Yuval Shaia <yuval.shaia@oracle.com>
Acked-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
2018-12-20 10:29:08 +01:00
Emilio G. Cota b7c2cd08a6 xxhash: match output against the original xxhash32
Change the order in which we extract a/b and c/d to
match the output of the upstream xxhash32.

Tested with:
  https://github.com/cota/xxhash/tree/qemu

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-12-17 06:04:44 +03:00
Emilio G. Cota fe656e3185 include: move exec/tb-hash-xx.h to qemu/xxhash.h
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-12-17 06:04:44 +03:00
Peter Maydell 81781be3c9 QAPI patches for 2018-12-13
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Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2018-12-13-v2' into staging

QAPI patches for 2018-12-13

# gpg: Signature made Fri 14 Dec 2018 05:53:51 GMT
# gpg:                using RSA key 3870B400EB918653
# 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-2018-12-13-v2: (32 commits)
  qapi: add conditions to REPLICATION type/commands on the schema
  qapi: add more conditions to SPICE
  qapi: add condition to variants documentation
  qapi: add 'If:' condition to struct members documentation
  qapi: add 'If:' condition to enum values documentation
  qapi: Add #if conditions to generated code members
  qapi: add 'if' to alternate members
  qapi: add 'if' to union members
  qapi: Add 'if' to implicit struct members
  qapi: add a dictionary form for TYPE
  qapi-events: add 'if' condition to implicit event enum
  qapi: add 'if' to enum members
  qapi: add a dictionary form with 'name' key for enum members
  qapi: improve reporting of unknown or missing keys
  qapi: factor out checking for keys
  tests: print enum type members more like object type members
  qapi: change enum visitor and gen_enum* to take QAPISchemaMember
  qapi: Do not define enumeration value explicitly
  qapi: break long lines at 'data' member
  qapi: rename QAPISchemaEnumType.values to .members
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-12-15 21:19:06 +00:00
David Hildenbrand af02f4c517 cutils: Fix qemu_strtosz() & friends to reject non-finite sizes
qemu_strtosz() & friends reject NaNs, but happily accept infinities.
They shouldn't. Fix that.

The fix makes use of qemu_strtod_finite(). To avoid ugly casts,
change the @end parameter of qemu_strtosz() & friends from char **
to const char **.

Also, add two test cases, testing that "inf" and "NaN" are properly
rejected. While at it, also fixup the function documentation.

Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20181121164421.20780-3-david@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2018-12-13 19:10:06 +01:00
David Hildenbrand ca28f54816 cutils: Add qemu_strtod() and qemu_strtod_finite()
Let's provide a wrapper for strtod().

Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20181121164421.20780-2-david@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2018-12-13 19:10:06 +01:00