mirror of
https://gitlab.com/qemu-project/qemu
synced 2024-11-05 20:35:44 +00:00
bd688fc931
This API allows the accelerators to prevent vcpus from issuing
new ioctls while execting a critical section marked with the
accel_ioctl_inhibit_begin/end functions.
Note that all functions submitting ioctls must mark where the
ioctl is being called with accel_{cpu_}ioctl_begin/end().
This API requires the caller to always hold the BQL.
API documentation is in sysemu/accel-blocker.h
Internally, it uses a QemuLockCnt together with a per-CPU QemuLockCnt
(to minimize cache line bouncing) to keep avoid that new ioctls
run when the critical section starts, and a QemuEvent to wait
that all running ioctls finish.
Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221111154758.1372674-2-eesposit@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
107 lines
4 KiB
Meson
107 lines
4 KiB
Meson
util_ss.add(files('osdep.c', 'cutils.c', 'unicode.c', 'qemu-timer-common.c'))
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util_ss.add(files('thread-context.c'), numa)
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if not config_host_data.get('CONFIG_ATOMIC64')
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util_ss.add(files('atomic64.c'))
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endif
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util_ss.add(when: 'CONFIG_LINUX', if_true: files('async-teardown.c'))
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util_ss.add(when: 'CONFIG_POSIX', if_true: files('aio-posix.c'))
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util_ss.add(when: 'CONFIG_POSIX', if_true: files('fdmon-poll.c'))
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if config_host_data.get('CONFIG_EPOLL_CREATE1')
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util_ss.add(files('fdmon-epoll.c'))
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endif
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util_ss.add(when: linux_io_uring, if_true: files('fdmon-io_uring.c'))
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util_ss.add(when: 'CONFIG_POSIX', if_true: files('compatfd.c'))
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util_ss.add(when: 'CONFIG_POSIX', if_true: files('event_notifier-posix.c'))
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util_ss.add(when: 'CONFIG_POSIX', if_true: files('mmap-alloc.c'))
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freebsd_dep = []
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if targetos == 'freebsd'
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freebsd_dep = util
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endif
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util_ss.add(when: 'CONFIG_POSIX', if_true: [files('oslib-posix.c'), freebsd_dep])
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util_ss.add(when: 'CONFIG_POSIX', if_true: files('qemu-thread-posix.c'))
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util_ss.add(when: 'CONFIG_POSIX', if_true: files('memfd.c'))
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util_ss.add(when: 'CONFIG_WIN32', if_true: files('aio-win32.c'))
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util_ss.add(when: 'CONFIG_WIN32', if_true: files('event_notifier-win32.c'))
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util_ss.add(when: 'CONFIG_WIN32', if_true: files('oslib-win32.c'))
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util_ss.add(when: 'CONFIG_WIN32', if_true: files('qemu-thread-win32.c'))
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util_ss.add(when: 'CONFIG_WIN32', if_true: winmm)
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util_ss.add(when: 'CONFIG_WIN32', if_true: pathcch)
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util_ss.add(files('envlist.c', 'path.c', 'module.c'))
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util_ss.add(files('host-utils.c'))
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util_ss.add(files('bitmap.c', 'bitops.c'))
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util_ss.add(files('fifo8.c'))
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util_ss.add(files('cacheflush.c'))
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util_ss.add(files('error.c', 'error-report.c'))
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util_ss.add(files('qemu-print.c'))
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util_ss.add(files('id.c'))
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util_ss.add(files('qemu-config.c', 'notify.c'))
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util_ss.add(files('qemu-option.c', 'qemu-progress.c'))
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util_ss.add(files('keyval.c'))
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util_ss.add(files('crc32c.c'))
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util_ss.add(files('uuid.c'))
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util_ss.add(files('getauxval.c'))
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util_ss.add(files('rcu.c'))
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if have_membarrier
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util_ss.add(files('sys_membarrier.c'))
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endif
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util_ss.add(files('log.c'))
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util_ss.add(files('qdist.c'))
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util_ss.add(files('qht.c'))
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util_ss.add(files('qsp.c'))
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util_ss.add(files('range.c'))
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util_ss.add(files('stats64.c'))
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util_ss.add(files('systemd.c'))
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util_ss.add(files('transactions.c'))
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util_ss.add(when: 'CONFIG_POSIX', if_true: files('drm.c'))
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util_ss.add(files('guest-random.c'))
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util_ss.add(files('yank.c'))
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util_ss.add(files('int128.c'))
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util_ss.add(files('memalign.c'))
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util_ss.add(files('interval-tree.c'))
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util_ss.add(files('lockcnt.c'))
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if have_user
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util_ss.add(files('selfmap.c'))
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endif
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if have_system
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util_ss.add(files('crc-ccitt.c'))
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util_ss.add(when: gio, if_true: files('dbus.c'))
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util_ss.add(when: 'CONFIG_LINUX', if_true: files('userfaultfd.c'))
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endif
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if have_block or have_ga
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util_ss.add(files('aiocb.c', 'async.c'))
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util_ss.add(files('base64.c'))
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util_ss.add(files('main-loop.c'))
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util_ss.add(files('qemu-coroutine.c', 'qemu-coroutine-lock.c', 'qemu-coroutine-io.c'))
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util_ss.add(files('coroutine-@0@.c'.format(config_host['CONFIG_COROUTINE_BACKEND'])))
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util_ss.add(files('thread-pool.c', 'qemu-timer.c'))
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util_ss.add(files('qemu-sockets.c'))
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endif
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if have_block
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util_ss.add(files('aio-wait.c'))
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util_ss.add(files('buffer.c'))
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util_ss.add(files('bufferiszero.c'))
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util_ss.add(files('hbitmap.c'))
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util_ss.add(files('hexdump.c'))
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util_ss.add(files('iova-tree.c'))
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util_ss.add(files('iov.c', 'uri.c'))
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util_ss.add(files('nvdimm-utils.c'))
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util_ss.add(when: 'CONFIG_LINUX', if_true: [
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files('vhost-user-server.c'), vhost_user
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])
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util_ss.add(files('block-helpers.c'))
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util_ss.add(files('qemu-coroutine-sleep.c'))
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util_ss.add(files('qemu-co-shared-resource.c'))
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util_ss.add(files('qemu-co-timeout.c'))
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util_ss.add(files('readline.c'))
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util_ss.add(files('throttle.c'))
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util_ss.add(files('timed-average.c'))
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if config_host_data.get('CONFIG_INOTIFY1')
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util_ss.add(files('filemonitor-inotify.c'))
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else
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util_ss.add(files('filemonitor-stub.c'))
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endif
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util_ss.add(when: 'CONFIG_LINUX', if_true: files('vfio-helpers.c'))
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endif
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