Commit Graph

1191 Commits

Author SHA1 Message Date
Philippe Mathieu-Daudé 67263b33af util/hexdump: Convert to take a void pointer argument
Most uses of qemu_hexdump() do not take an array of char
as input, forcing use of cast. Since we can use this
helper to dump any kind of buffer, use a pointer to void
argument instead.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Li Qiang <liq3ea@gmail.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20200822180950.1343963-2-f4bug@amsat.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-09-11 21:25:59 +02:00
Thomas Huth 8c2787629e stubs: Move qemu_fd_register stub to util/main-loop.c
The linker of MinGW sometimes runs into the following problem:

libqemuutil.a(util_main-loop.c.obj): In function `qemu_fd_register':
/builds/huth/qemu/build/../util/main-loop.c:331: multiple definition of
 `qemu_fd_register'
libqemuutil.a(stubs_fd-register.c.obj):/builds/huth/qemu/stubs/fd-register.c:5:
 first defined here
collect2: error: ld returned 1 exit status
/builds/huth/qemu/rules.mak:88: recipe for target 'tests/test-timed-average.exe'
 failed

qemu_fd_register() is defined in util/main-loop.c for WIN32, so let's simply
move the stub also there in the #else part of the corresponding #ifndef
to fix this problem.

Message-Id: <20200903054503.425435-1-thuth@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2020-09-07 12:34:17 +02:00
Philippe Mathieu-Daudé ce0ce715cd util/vfio-helpers: Unify trace-events size format
Some 'qemu_vfio_*' trace events sizes are displayed using
decimal notation, other using hexadecimal notation:

  qemu_vfio_ram_block_added s 0xaaaaf2448d90 host 0xffff5bc00000 size 0x4000000
  qemu_vfio_dma_map s 0xaaaaf2448d90 host 0xffff5bc00000 size 67108864 temporary 0 iova (nil)
  qemu_vfio_find_mapping s 0xaaaaf2448d90 host 0xffff5bc00000
  qemu_vfio_new_mapping s 0xaaaaf2448d90 host 0xffff5bc00000 size 67108864 index 4 iova 0x114000
  qemu_vfio_do_mapping s 0xaaaaf2448d90 host 0xffff5bc00000 size 67108864 iova 0x114000

As it is hard to follow, unify using hexadecimal for all sizes:

  qemu_vfio_ram_block_added s 0xaaaaf1c60d90 host 0xffff2bc00000 size 0x4000000
  qemu_vfio_dma_map s 0xaaaaf1c60d90 host 0xffff2bc00000 size 0x4000000 temporary 0 iova (nil)
  qemu_vfio_find_mapping s 0xaaaaf1c60d90 host 0xffff2bc00000
  qemu_vfio_new_mapping s 0xaaaaf1c60d90 host 0xffff2bc00000 size 0x4000000 index 4 iova 0x114000
  qemu_vfio_do_mapping s 0xaaaaf1c60d90 host 0xffff2bc00000 size 0x4000000 iova 0x114000

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Li Qiang <liq3ea@gmail.com>
Message-Id: <20200820171006.1140228-1-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-09-01 11:35:43 +02:00
Philippe Mathieu-Daudé a6da793ad9 util/vfio-helpers: Fix typo in description
Remove the second 'and' introduced in commit 418026ca43
("util: Introduce vfio helpers").

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Li Qiang <liq3ea@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20200811151643.21293-4-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-09-01 11:08:57 +02:00
Philippe Mathieu-Daudé 3cf10b2946 util/qemu-timer: Fix typo in description
Remove the second 'and' introduced in commit e81f86790f ("qemu-timer:
avoid checkpoints for virtual clock timers in external subsystems").

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Li Qiang <liq3ea@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20200811151643.21293-3-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-09-01 11:08:57 +02:00
Peter Maydell 3a52b42c94 meson fixes:
* --disable-tools --enable-system build
 * s390 no-TCG build
 * fdmon-io_uring
 * 'shift' error message in version_ge()
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Merge remote-tracking branch 'remotes/bonzini-gitlab/tags/for-upstream' into staging

meson fixes:

* --disable-tools --enable-system build
* s390 no-TCG build
* fdmon-io_uring
* 'shift' error message in version_ge()

# gpg: Signature made Fri 21 Aug 2020 22:12:29 BST
# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg:                issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# 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-gitlab/tags/for-upstream:
  keymaps: update
  meson: Fix --disable-tools --enable-system builds
  meson: convert pc-bios/keymaps/Makefile
  configure: silence 'shift' error message in version_ge()
  util/meson.build: fix fdmon-io_uring build
  target/s390x: fix meson.build issue

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-08-22 21:59:08 +01:00
Peter Maydell f86d9a093d Pull request
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Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging

Pull request

# gpg: Signature made Mon 17 Aug 2020 15:34:34 BST
# gpg:                using RSA key 8695A8BFD3F97CDAAC35775A9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" [full]
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>" [full]
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* remotes/stefanha/tags/block-pull-request:
  aio-posix: keep aio_notify_me disabled during polling
  async: always set ctx->notified in aio_notify()
  async: rename event_notifier_dummy_cb/poll()

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-08-21 17:26:52 +01:00
Stefano Garzarella 6dd93c2bde util/meson.build: fix fdmon-io_uring build
libqemuutil.a build fails with this error:

  /usr/bin/ld: libqemuutil.a(util_fdmon-io_uring.c.o): in function `get_sqe':
  qemu/build/../util/fdmon-io_uring.c:83: undefined reference to `io_uring_get_sqe'
  /usr/bin/ld: qemu/build/../util/fdmon-io_uring.c:92: undefined reference to `io_uring_submit'
  /usr/bin/ld: qemu/build/../util/fdmon-io_uring.c:96: undefined reference to `io_uring_get_sqe'
  /usr/bin/ld: libqemuutil.a(util_fdmon-io_uring.c.o): in function `fdmon_io_uring_wait':
  qemu/build/../util/fdmon-io_uring.c:289: undefined reference to `io_uring_submit_and_wait'
  /usr/bin/ld: libqemuutil.a(util_fdmon-io_uring.c.o): in function `fdmon_io_uring_setup':
  qemu/build/../util/fdmon-io_uring.c:328: undefined reference to `io_uring_queue_init'
  /usr/bin/ld: libqemuutil.a(util_fdmon-io_uring.c.o): in function `fdmon_io_uring_destroy':
  qemu/build/../util/fdmon-io_uring.c:343: undefined reference to `io_uring_queue_exit'
  collect2: error: ld returned 1 exit status

This patch fix the issue adding 'linux_io_uring' dependency for
fdmon-io_uring.c

Fixes: a81df1b68b ("libqemuutil, qapi, trace: convert to meson")
Cc: pbonzini@redhat.com
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20200821154853.94379-1-sgarzare@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-08-21 11:57:13 -04:00
Paolo Bonzini 859aef026e meson: replace create-config with meson configure_file
Move the create-config logic to meson.build; create a
configuration_data object and let meson handle the
quoting and output.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-08-21 06:30:43 -04:00
Paolo Bonzini 64ed6f92ff meson: link emulators without Makefile.target
The binaries move to the root directory, e.g. qemu-system-i386 or
qemu-arm.  This requires changes to qtests, CI, etc.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-08-21 06:30:40 -04:00
Paolo Bonzini a81df1b68b libqemuutil, qapi, trace: convert to meson
This shows how to do some "computations" in meson.build using its array
and dictionary data structures, and also a basic usage of the sourceset
module for conditional compilation.

Notice the new "if have_system" part of util/meson.build, which fixes
a bug in the old build system was buggy: util/dbus.c was built even for
non-softmmu builds, but the dependency on -lgio was lost when the linking
was done through libqemuutil.a.  Because all of its users required gio
otherwise, the bug was hidden.  Meson instead propagates libqemuutil's
dependencies down to its users, and shows the problem.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-08-21 06:30:08 -04:00
Paolo Bonzini 243af0225a trace: switch position of headers to what Meson requires
Meson doesn't enjoy the same flexibility we have with Make in choosing
the include path.  In particular the tracing headers are using
$(build_root)/$(<D).

In order to keep the include directives unchanged,
the simplest solution is to generate headers with patterns like
"trace/trace-audio.h" and place forwarding headers in the source tree
such that for example "audio/trace.h" includes "trace/trace-audio.h".

This patch is too ugly to be applied to the Makefiles now.  It's only
a way to separate the changes to the tracing header files from the
Meson rewrite of the tracing logic.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-08-21 06:18:24 -04:00
Stefan Hajnoczi 44277bf914 aio-posix: keep aio_notify_me disabled during polling
Polling only monitors the ctx->notified field and does not need the
ctx->notifier EventNotifier to be signalled. Keep ctx->aio_notify_me
disabled while polling to avoid unnecessary EventNotifier syscalls.

This optimization improves virtio-blk 4KB random read performance by
18%. The following results are with an IOThread and the null-co block
driver:

Test         IOPS   Error
Before  244518.62 ± 1.20%
After   290706.11 ± 0.44%

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20200806131802.569478-4-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2020-08-13 13:34:14 +01:00
Stefan Hajnoczi 601829f88e async: always set ctx->notified in aio_notify()
aio_notify() does not set ctx->notified when called with
ctx->aio_notify_me disabled. Therefore aio_notify_me needs to be enabled
during polling.

This is suboptimal since expensive event_notifier_set(&ctx->notifier)
and event_notifier_test_and_clear(&ctx->notifier) calls are required
when ctx->aio_notify_me is enabled.

Change aio_notify() so that aio->notified is always set, regardless of
ctx->aio_notify_me. This will make polling cheaper since
ctx->aio_notify_me can remain disabled. Move the
event_notifier_test_and_clear() to the fd handler function (which is now
no longer an empty function so "dummy" has been dropped from its name).

The next patch takes advantage of this by optimizing polling in
util/aio-posix.c.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20200806131802.569478-3-stefanha@redhat.com

[Paolo Bonzini pointed out that the smp_wmb() in aio_notify_accept()
should be smp_wb() but the comment should be smp_wmb() instead of
smp_wb(). Fixed.
--Stefan]

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2020-08-13 13:32:59 +01:00
Stefan Hajnoczi c13be5a1bf async: rename event_notifier_dummy_cb/poll()
The event_notifier_*() prefix can be confused with the EventNotifier
APIs that are also called event_notifier_*().

Rename the functions to aio_context_notifier_*() to make it clear that
they relate to the AioContext::notifier field.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 20200806131802.569478-2-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2020-08-13 13:26:12 +01:00
Alex Bennée 986babaab3 util/oslib-win32: add qemu_get_host_physmem implementation
Compile tested only.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Message-Id: <20200724064509.331-6-alex.bennee@linaro.org>
2020-07-27 09:40:16 +01:00
Alex Bennée ad06ef0efb util: add qemu_get_host_physmem utility function
This will be used in a future patch. For POSIX systems _SC_PHYS_PAGES
isn't standardised but at least appears in the man pages for
Open/FreeBSD. The result is advisory so any users of it shouldn't just
fail if we can't work it out.

The win32 stub currently returns 0 until someone with a Windows system
can develop and test a patch.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Cc: BALATON Zoltan <balaton@eik.bme.hu>
Cc: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Message-Id: <20200724064509.331-5-alex.bennee@linaro.org>
2020-07-27 09:40:12 +01:00
Gerd Hoffmann d87350b065 module: ignore NULL type
Just return in case module_load_qom_one(NULL) is called.
vga_interface_available() can do that.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-Id: <20200720100352.2477-3-kraxel@redhat.com>
2020-07-21 10:56:51 +02:00
David CARLIER 8edbca515c util: Implement qemu_get_thread_id() for OpenBSD
Implement qemu_get_thread_id() for OpenBSD hosts, using
getthrid().

Signed-off-by: David Carlier <devnexen@gmail.com>
Reviewed-by: Brad Smith <brad@comstyle.com>
Message-id: CA+XhMqxD6gQDBaj8tX0CMEj3si7qYKsM8u1km47e_-U7MC37Pg@mail.gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[PMM: tidied up commit message]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-07-20 11:35:17 +01:00
Laurent Vivier 894022e616 net: check if the file descriptor is valid before using it
qemu_set_nonblock() checks that the file descriptor can be used and, if
not, crashes QEMU. An assert() is used for that. The use of assert() is
used to detect programming error and the coredump will allow to debug
the problem.

But in the case of the tap device, this assert() can be triggered by
a misconfiguration by the user. At startup, it's not a real problem, but it
can also happen during the hot-plug of a new device, and here it's a
problem because we can crash a perfectly healthy system.

For instance:
 # ip link add link virbr0 name macvtap0 type macvtap mode bridge
 # ip link set macvtap0 up
 # TAP=/dev/tap$(ip -o link show macvtap0 | cut -d: -f1)
 # qemu-system-x86_64 -machine q35 -device pcie-root-port,id=pcie-root-port-0 -monitor stdio 9<> $TAP
 (qemu) netdev_add type=tap,id=hostnet0,vhost=on,fd=9
 (qemu) device_add driver=virtio-net-pci,netdev=hostnet0,id=net0,bus=pcie-root-port-0
 (qemu) device_del net0
 (qemu) netdev_del hostnet0
 (qemu) netdev_add type=tap,id=hostnet1,vhost=on,fd=9
 qemu-system-x86_64: .../util/oslib-posix.c:247: qemu_set_nonblock: Assertion `f != -1' failed.
 Aborted (core dumped)

To avoid that, add a function, qemu_try_set_nonblock(), that allows to report the
problem without crashing.

In the same way, we also update the function for vhostfd in net_init_tap_one() and
for fd in net_init_socket() (both descriptors are provided by the user and can
be wrong).

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2020-07-15 21:00:13 +08:00
Michal Privoznik e47f4765af util: Introduce qemu_get_host_name()
This function offers operating system agnostic way to fetch host
name. It is implemented for both POSIX-like and Windows systems.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2020-07-13 17:44:58 -05:00
Gerd Hoffmann 0b823cb07e util/drm: make portable by avoiding struct dirent d_type
Given this isn't perforance critical at all lets avoid the non-portable
d_type and use fstat instead to check whenever the file is a chardev.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reported-by: David Carlier <devnexen@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200703145614.16684-10-peter.maydell@linaro.org
Message-id: 20200701180302.14821-1-kraxel@redhat.com
[PMM: fixed comment style; tweaked subject line]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-07-13 14:36:10 +01:00
David CARLIER 2b9b9e7010 util/oslib-posix.c: Implement qemu_init_exec_dir() for Haiku
The qemu_init_exec_dir() function is inherently non-portable;
provide an implementation for Haiku hosts.

Signed-off-by: David Carlier <devnexen@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200703145614.16684-9-peter.maydell@linaro.org
[PMM: Expanded commit message]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-07-13 14:36:10 +01:00
David CARLIER 81b7b1e21d util/compatfd.c: Only include <sys/syscall.h> if CONFIG_SIGNALFD
util/compatfd.c includes <sys/syscall.h> so that the CONFIG_SIGNALFD
code can use SYS_signalfd. Guard the #include with CONFIG_SIGNALFD
to avoid portability issues on hosts like Haiku which do not
provide that header file.

Signed-off-by: David Carlier <devnexen@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200703145614.16684-8-peter.maydell@linaro.org
[PMM: Expanded commit message]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-07-13 14:36:10 +01:00
David CARLIER 2a4b472c3c osdep.h: Always include <sys/signal.h> if it exists
Regularize our handling of <sys/signal.h>: currently we include it in
osdep.h, but only for OpenBSD, and we include it without an ifdef
guard in a couple of C files.  This causes problems for Haiku, which
doesn't have that header.

Instead, check in configure whether sys/signal.h exists, and if it
does then always include it from osdep.h.

Signed-off-by: David Carlier <devnexen@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200703145614.16684-5-peter.maydell@linaro.org
[PMM: Expanded commit message; rename to HAVE_SYS_SIGNAL_H]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-07-13 14:36:09 +01:00
David CARLIER c9c8b88f0b util/qemu-openpty.c: Don't assume pty.h is glibc-only
Instead of using an OS-specific ifdef test to select the "openpty()
is in pty.h" codepath, make configure check for the existence of
the header and use the new CONFIG_PTY instead.

This is necessary to build on Haiku, which also provides openpty()
via pty.h.

Signed-off-by: David Carlier <devnexen@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200703145614.16684-3-peter.maydell@linaro.org
[PMM: Expanded commit message; rename to HAVE_PTY_H]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-07-13 14:36:09 +01:00
Thomas Huth 7aa12aa215 Remove the CONFIG_PRAGMA_DIAGNOSTIC_AVAILABLE switch
GCC supports "#pragma GCC diagnostic" since version 4.6, and
Clang seems to support it, too, since its early versions 3.x.
That means that our minimum required compiler versions all support
this pragma already and we can remove the test from configure and
all the related #ifdefs in the code.

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20200710045515.25986-1-thuth@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2020-07-13 11:40:52 +02:00
Peter Maydell 9f526fce49 Testing and misc build updates:
- tests/vm support for aarch64 VMs
   - tests/tcg better cross-compiler detection
   - update docker tooling to support registries
   - update docker support for xtensa
   - gitlab build docker images and store in registry
   - gitlab use docker images for builds
   - a number of skipIf updates to support move
   - linux-user MAP_FIXED_NOREPLACE fix
   - qht-bench compiler tweaks
   - configure fix for secret keyring
   - tsan fiber annotation clean-up
   - doc updates for mttcg/icount/gdbstub
   - fix cirrus to use brew bash for iotests
   - revert virtio-gpu breakage
   - fix LC_ALL to avoid sorting changes in iotests
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Merge remote-tracking branch 'remotes/stsquad/tags/pull-testing-and-misc-110720-2' into staging

Testing and misc build updates:

  - tests/vm support for aarch64 VMs
  - tests/tcg better cross-compiler detection
  - update docker tooling to support registries
  - update docker support for xtensa
  - gitlab build docker images and store in registry
  - gitlab use docker images for builds
  - a number of skipIf updates to support move
  - linux-user MAP_FIXED_NOREPLACE fix
  - qht-bench compiler tweaks
  - configure fix for secret keyring
  - tsan fiber annotation clean-up
  - doc updates for mttcg/icount/gdbstub
  - fix cirrus to use brew bash for iotests
  - revert virtio-gpu breakage
  - fix LC_ALL to avoid sorting changes in iotests

# gpg: Signature made Sat 11 Jul 2020 15:56:42 BST
# gpg:                using RSA key 6685AE99E75167BCAFC8DF35FBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>" [full]
# Primary key fingerprint: 6685 AE99 E751 67BC AFC8  DF35 FBD0 DB09 5A9E 2A44

* remotes/stsquad/tags/pull-testing-and-misc-110720-2: (50 commits)
  iotests: Set LC_ALL=C for sort
  Revert "vga: build virtio-gpu as module"
  tests: fix "make check-qtest" for modular builds
  .cirrus.yml: add bash to the brew packages
  tests/docker: update toolchain set in debian-xtensa-cross
  tests/docker: fall back more gracefully when pull fails
  docs: Add to gdbstub documentation the PhyMemMode
  docs/devel: add some notes on tcg-icount for developers
  docs/devel: convert and update MTTCG design document
  tests/qht-bench: Adjust threshold computation
  tests/qht-bench: Adjust testing rate by -1
  travis.yml: Test also the other targets on s390x
  shippable: pull images from registry instead of building
  testing: add check-build target
  containers.yml: build with docker.py tooling
  gitlab: limit re-builds of the containers
  tests: improve performance of device-introspect-test
  gitlab: add avocado asset caching
  gitlab: enable check-tcg for linux-user tests
  linux-user/elfload: use MAP_FIXED_NOREPLACE in pgb_reserved_va
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-07-12 15:32:05 +01:00
Gerd Hoffmann e94f068720 Revert "vga: build virtio-gpu as module"
This reverts commit 8d5a24c83d.

Compiling all virtio-gpu objects into a single module isn't a good plan
because the individual objects have different CONFIG_* dependencies.
Leads to module load failures on s390x due to vga support being
disabled, which in turn breaks '-device virtio-gpu-device' (flagged by
travis ci).

So back to the drawing board for modular virtio-gpu ...

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20200710203652.9708-3-kraxel@redhat.com>
2020-07-11 15:53:29 +01:00
Robert Foley 995f5c3c32 util/coroutine: Cleanup start_switch_fiber_ for TSAN.
This is a cleanup patch to follow-up the patch which introduced TSAN.
This patch makes separate start_switch_fiber_ functions for TSAN and ASAN.

This does two things:
1. Unrelated ASAN and TSAN code is separate and each function only
   has arguments that are actually needed.
2. The co->tsan_caller_fiber and co->tsan_co_fiber fields are only
   access from within #ifdef CONFIG_TSAN.

Signed-off-by: Robert Foley <robert.foley@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20200626170001.27017-1-robert.foley@linaro.org>
Message-Id: <20200701135652.1366-5-alex.bennee@linaro.org>
2020-07-11 15:52:59 +01:00
Mario Smarduch 2880ffb089 util/qemu-error: prepend guest name to error message to identify affected VM owner
This is followup patch to the one submitted back in Oct, 19

https://lists.gnu.org/archive/html/qemu-devel/2019-10/msg02102.html

My mistake here, I took my eyes of the mailing list after I got the
initial thumbs up. This patch follows up on Markus comments in the
above link.

Purpose of this patch:

We want to print guest name for errors, warnings and info messages. This
was the first of two patches the second being MCE errors targeting a VM
with guest name prepended. But in a large fleet we see many other
errors that disable a VM or crash it. In a large fleet and centralized
logging having the guest name enables identify of owner and customer.

Signed-off-by: Mario Smarduch <msmarduch@digitalocean.com>
Message-Id: <20200626201900.8876-1-msmarduch@digitalocean.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-07-10 18:02:15 -04:00
Markus Armbruster 668f62ec62 error: Eliminate error_propagate() with Coccinelle, part 1
When all we do with an Error we receive into a local variable is
propagating to somewhere else, we can just as well receive it there
right away.  Convert

    if (!foo(..., &err)) {
        ...
        error_propagate(errp, err);
        ...
        return ...
    }

to

    if (!foo(..., errp)) {
        ...
        ...
        return ...
    }

where nothing else needs @err.  Coccinelle script:

    @rule1 forall@
    identifier fun, err, errp, lbl;
    expression list args, args2;
    binary operator op;
    constant c1, c2;
    symbol false;
    @@
         if (
    (
    -        fun(args, &err, args2)
    +        fun(args, errp, args2)
    |
    -        !fun(args, &err, args2)
    +        !fun(args, errp, args2)
    |
    -        fun(args, &err, args2) op c1
    +        fun(args, errp, args2) op c1
    )
            )
         {
             ... when != err
                 when != lbl:
                 when strict
    -        error_propagate(errp, err);
             ... when != err
    (
             return;
    |
             return c2;
    |
             return false;
    )
         }

    @rule2 forall@
    identifier fun, err, errp, lbl;
    expression list args, args2;
    expression var;
    binary operator op;
    constant c1, c2;
    symbol false;
    @@
    -    var = fun(args, &err, args2);
    +    var = fun(args, errp, args2);
         ... when != err
         if (
    (
             var
    |
             !var
    |
             var op c1
    )
            )
         {
             ... when != err
                 when != lbl:
                 when strict
    -        error_propagate(errp, err);
             ... when != err
    (
             return;
    |
             return c2;
    |
             return false;
    |
             return var;
    )
         }

    @depends on rule1 || rule2@
    identifier err;
    @@
    -    Error *err = NULL;
         ... when != err

Not exactly elegant, I'm afraid.

The "when != lbl:" is necessary to avoid transforming

         if (fun(args, &err)) {
             goto out
         }
         ...
     out:
         error_propagate(errp, err);

even though other paths to label out still need the error_propagate().
For an actual example, see sclp_realize().

Without the "when strict", Coccinelle transforms vfio_msix_setup(),
incorrectly.  I don't know what exactly "when strict" does, only that
it helps here.

The match of return is narrower than what I want, but I can't figure
out how to express "return where the operand doesn't use @err".  For
an example where it's too narrow, see vfio_intx_enable().

Silently fails to convert hw/arm/armsse.c, because Coccinelle gets
confused by ARMSSE being used both as typedef and function-like macro
there.  Converted manually.

Line breaks tidied up manually.  One nested declaration of @local_err
deleted manually.  Preexisting unwanted blank line dropped in
hw/riscv/sifive_e.c.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200707160613.848843-35-armbru@redhat.com>
2020-07-10 15:18:08 +02:00
Markus Armbruster 235e59cf03 qemu-option: Use returned bool to check for failure
The previous commit enables conversion of

    foo(..., &err);
    if (err) {
        ...
    }

to

    if (!foo(..., &err)) {
        ...
    }

for QemuOpts functions that now return true / false on success /
error.  Coccinelle script:

    @@
    identifier fun = {
        opts_do_parse, parse_option_bool, parse_option_number,
        parse_option_size, qemu_opt_parse, qemu_opt_rename, qemu_opt_set,
        qemu_opt_set_bool, qemu_opt_set_number, qemu_opts_absorb_qdict,
        qemu_opts_do_parse, qemu_opts_from_qdict_entry, qemu_opts_set,
        qemu_opts_validate
    };
    expression list args, args2;
    typedef Error;
    Error *err;
    @@
    -    fun(args, &err, args2);
    -    if (err)
    +    if (!fun(args, &err, args2))
         {
             ...
         }

A few line breaks tidied up manually.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20200707160613.848843-15-armbru@redhat.com>
[Conflict with commit 0b6786a9c1 "block/amend: refactor qcow2 amend
options" resolved by rerunning Coccinelle on master's version]
2020-07-10 15:17:35 +02:00
Markus Armbruster c75d7f7191 qemu-option: Make functions taking Error ** return bool, not void
See recent commit "error: Document Error API usage rules" for
rationale.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20200707160613.848843-14-armbru@redhat.com>
2020-07-10 15:01:06 +02:00
Markus Armbruster 64af7a8bad qemu-option: Replace opt_set() by cleaner opt_validate()
opt_set() frees its argument @value on failure.  Slightly unclean;
functions ideally do nothing on failure.

To tidy this up, move opt_create() from opt_set() into its callers,
along with the cleanup.  Rename opt_set() to opt_validate(), noting
its similarity to qemu_opts_validate().  Drop redundant parameter
@opts; use opt->opts instead.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20200707160613.848843-13-armbru@redhat.com>
2020-07-10 15:01:06 +02:00
Markus Armbruster 81a8a0726a qemu-option: Factor out helper opt_create()
There is just one use so far.  The next commit will add more.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20200707160613.848843-12-armbru@redhat.com>
2020-07-10 15:01:06 +02:00
Markus Armbruster 44b0b7d175 qemu-option: Simplify around find_default_by_name()
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20200707160613.848843-11-armbru@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
2020-07-10 15:01:06 +02:00
Markus Armbruster f23db652cb qemu-option: Factor out helper find_default_by_name()
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Message-Id: <20200707160613.848843-10-armbru@redhat.com>
2020-07-10 15:01:06 +02:00
Markus Armbruster 9da7197a80 qemu-option: Make uses of find_desc_by_name() more similar
This is to make the next commit easier to review.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Message-Id: <20200707160613.848843-9-armbru@redhat.com>
2020-07-10 15:01:06 +02:00
Markus Armbruster c6ecec43b2 qemu-option: Check return value instead of @err where convenient
Convert uses like

    opts = qemu_opts_create(..., &err);
    if (err) {
        ...
    }

to

    opts = qemu_opts_create(..., errp);
    if (!opts) {
        ...
    }

Eliminate error_propagate() that are now unnecessary.  Delete @err
that are now unused.

Note that we can't drop parallels_open()'s error_propagate() here.  We
continue to execute it even in the converted case.  It's a no-op then:
local_err is null.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Message-Id: <20200707160613.848843-8-armbru@redhat.com>
2020-07-10 15:01:06 +02:00
Peter Maydell aff2caf6b3 qom: add support for qom objects in modules.
build some devices (qxl, virtio-gpu, ccid, usb-redir) as modules.
 build braille chardev as module.
 
 v2: more verbose comment for "build: fix device module builds" patch.
 
 note: qemu doesn't rebuild objects on cflags changes (specifically
       -fPIC being added when code is switched from builtin to module).
       Workaround for resulting build errors: "make clean", rebuild.
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Merge remote-tracking branch 'remotes/kraxel/tags/modules-20200707-pull-request' into staging

qom: add support for qom objects in modules.
build some devices (qxl, virtio-gpu, ccid, usb-redir) as modules.
build braille chardev as module.

v2: more verbose comment for "build: fix device module builds" patch.

note: qemu doesn't rebuild objects on cflags changes (specifically
      -fPIC being added when code is switched from builtin to module).
      Workaround for resulting build errors: "make clean", rebuild.

# gpg: Signature made Tue 07 Jul 2020 14:42:16 BST
# gpg:                using RSA key 4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" [full]
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>" [full]
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>" [full]
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* remotes/kraxel/tags/modules-20200707-pull-request:
  chardev: enable modules, use for braille
  vga: build virtio-gpu as module
  vga: build virtio-gpu only once
  vga: build qxl as module
  usb: build usb-redir as module
  ccid: build smartcard as module
  build: fix device module builds
  qdev: device module support
  object: qom module support
  module: qom module support

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-07-09 17:02:29 +01:00
Gerd Hoffmann ef138c7724 chardev: enable modules, use for braille
Removes brlapi library dependency from core qemu.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20200624131045.14512-11-kraxel@redhat.com
2020-07-07 15:33:59 +02:00
Gerd Hoffmann 8d5a24c83d vga: build virtio-gpu as module
Drops libvirglrenderer.so dependency from core qemu.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20200624131045.14512-10-kraxel@redhat.com
2020-07-07 15:33:59 +02:00
Gerd Hoffmann d39e93d483 vga: build qxl as module
First step in making spice support modular.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20200624131045.14512-8-kraxel@redhat.com
2020-07-07 15:33:59 +02:00
Gerd Hoffmann aa9c8573be usb: build usb-redir as module
Drops libusbredirparser.so dependency from core qemu.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20200624131045.14512-7-kraxel@redhat.com
2020-07-07 15:33:59 +02:00
Gerd Hoffmann 8887312b40 ccid: build smartcard as module
Drops libcacard.so dependency from core qemu.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20200624131045.14512-6-kraxel@redhat.com
2020-07-07 15:33:59 +02:00
Gerd Hoffmann 28457744c3 module: qom module support
Add support for qom types provided by modules.  For starters use a
manually maintained list which maps qom type to module and prefix.

Two load functions are added:  One to load the module for a specific
type, and one to load all modules (needed for object/device lists as
printed by -- for example -- qemu -device help).

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20200624131045.14512-2-kraxel@redhat.com
2020-07-07 14:54:29 +02:00
Thomas Huth 9df8b20d16 configure / util: Auto-detect the availability of openpty()
Recent versions of Solaris (v11.4) now feature an openpty() function,
too, causing a build failure since we ship our own implementation of
openpty() for Solaris in util/qemu-openpty.c so far. Since there are
now both variants available in the wild, with and without this function
(and illumos is said to not have this function yet), let's introduce a
proper HAVE_OPENPTY define for this to fix the build failure.

Message-Id: <20200702143955.678-1-thuth@redhat.com>
Tested-by: Michele Denber <denber@mindspring.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2020-07-06 07:37:02 +02:00
Peter Maydell 3591ddd399 * Various fixes
* libdaxctl support to correctly align devdax character devices (Jingqi)
 * initial-all-set support for live migration (Jay)
 * forbid '-numa node, mem' for 5.1 and newer machine types (Igor)
 * x87 fixes (Joseph)
 * Tighten memory_region_access_valid (Michael) and fix fallout (myself)
 * Replay fixes (Pavel)
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 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* Various fixes
* libdaxctl support to correctly align devdax character devices (Jingqi)
* initial-all-set support for live migration (Jay)
* forbid '-numa node, mem' for 5.1 and newer machine types (Igor)
* x87 fixes (Joseph)
* Tighten memory_region_access_valid (Michael) and fix fallout (myself)
* Replay fixes (Pavel)

# gpg: Signature made Fri 26 Jun 2020 14:42:17 BST
# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg:                issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# 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: (31 commits)
  i386: Mask SVM features if nested SVM is disabled
  ibex_uart: fix XOR-as-pow
  vmport: move compat properties to hw_compat_5_0
  hyperv: vmbus: Remove the 2nd IRQ
  kvm: i386: allow TSC to differ by NTP correction bounds without TSC scaling
  numa: forbid '-numa node, mem' for 5.1 and newer machine types
  osdep: Make MIN/MAX evaluate arguments only once
  target/i386: Add notes for versioned CPU models
  target/i386: reimplement fpatan using floatx80 operations
  target/i386: reimplement fyl2x using floatx80 operations
  target/i386: reimplement fyl2xp1 using floatx80 operations
  target/i386: reimplement fprem, fprem1 using floatx80 operations
  softfloat: return low bits of quotient from floatx80_modrem
  softfloat: do not set denominator high bit for floatx80 remainder
  softfloat: do not return pseudo-denormal from floatx80 remainder
  softfloat: fix floatx80 remainder pseudo-denormal check for zero
  softfloat: merge floatx80_mod and floatx80_rem
  target/i386: reimplement f2xm1 using floatx80 operations
  xen: Actually fix build without passthrough
  Makefile: Install qemu-[qmp/ga]-ref.* into the directory "interop"
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-06-26 16:55:20 +01:00
Peter Maydell 87fb952da8 Pull request
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 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging

Pull request

# gpg: Signature made Wed 24 Jun 2020 11:01:57 BST
# gpg:                using RSA key 8695A8BFD3F97CDAAC35775A9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" [full]
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>" [full]
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* remotes/stefanha/tags/block-pull-request:
  block/nvme: support nested aio_poll()
  block/nvme: keep BDRVNVMeState pointer in NVMeQueuePair
  block/nvme: clarify that free_req_queue is protected by q->lock
  block/nvme: switch to a NVMeRequest freelist
  block/nvme: don't access CQE after moving cq.head
  block/nvme: drop tautologous assertion
  block/nvme: poll queues without q->lock
  check-block: enable iotests with SafeStack
  configure: add flags to support SafeStack
  coroutine: add check for SafeStack in sigaltstack
  coroutine: support SafeStack in ucontext backend
  minikconf: explicitly set encoding to UTF-8

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-06-26 13:48:54 +01:00