Emanuele Giuseppe Esposito bd688fc931 accel: introduce accelerator blocker API ... 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>		2023-01-11 09:59:39 +01:00
..
aio-posix.c	util/event-loop-base: Introduce options to set the thread pool size	2022-05-09 10:43:23 +01:00
aio-posix.h	aio-posix: fix spurious ->poll_ready() callbacks in main loop	2022-03-17 11:23:18 +00:00
aio-wait.c	aio_wait_kick: add missing memory barrier	2022-06-24 17:07:06 +02:00
aio-win32.c	util/aio-win32: Correct the event array size in aio_poll()	2022-11-06 09:48:26 +01:00
aiocb.c
async-teardown.c	os-posix: asynchronous teardown for shutdown on Linux	2022-10-31 09:46:34 +01:00
async.c	async: Register/unregister aiocontext in graph lock list	2022-12-15 16:07:43 +01:00
atomic64.c	osdep: Move memalign-related functions to their own header	2022-03-07 13:16:49 +00:00
base64.c
bitmap.c	migration: Use non-atomic ops for clear log bitmap	2022-11-21 11:58:10 +01:00
bitops.c
block-helpers.c
block-helpers.h
buffer.c
bufferiszero.c
cacheflush.c	util/cacheflush: Optimize flushing when ppc host has coherent icache	2022-06-21 09:28:41 -07:00
compatfd.c	util: replace pipe()+cloexec with g_unix_open_pipe()	2022-05-03 15:18:14 +04:00
coroutine-sigaltstack.c	Remove qemu-common.h include from most units	2022-04-06 14:31:55 +02:00
coroutine-ucontext.c	coroutine-ucontext: use QEMU_DEFINE_STATIC_CO_TLS()	2022-05-04 15:55:23 +02:00
coroutine-win32.c	coroutine-win32: use QEMU_DEFINE_STATIC_CO_TLS()	2022-05-04 15:55:23 +02:00
crc32c.c
crc-ccitt.c
cutils.c	util: remove support for hex numbers with a scaling suffix	2023-01-06 00:51:02 +01:00
dbus.c
drm.c
envlist.c	Use g_new() & friends where that makes obvious sense	2022-03-21 15:44:44 +01:00
error-report.c	error-report: fix g_date_time_format assertion	2022-04-28 08:51:56 +02:00
error.c
event_notifier-posix.c	Replace qemu_pipe() with g_unix_open_pipe()	2022-05-03 15:17:56 +04:00
event_notifier-win32.c	Remove qemu-common.h include from most units	2022-04-06 14:31:55 +02:00
fdmon-epoll.c
fdmon-io_uring.c	aio-posix: fix build failure io_uring 2.2	2022-03-17 11:23:18 +00:00
fdmon-poll.c
fifo8.c
filemonitor-inotify.c
filemonitor-stub.c
getauxval.c
guest-random.c
hbitmap.c	block: simplify handling of try to merge different sized bitmaps	2022-06-24 17:07:06 +02:00
hexdump.c	include: move C/util-related declarations to cutils.h	2022-04-06 14:31:43 +02:00
host-utils.c	host-utils: Implemented signed 256-by-128 division	2022-06-20 08:38:58 -03:00
id.c
int128.c
interval-tree.c	util: Add interval-tree.c	2022-12-20 17:09:41 -08:00
iov.c	util: make do_send_recv work with partial send/recv	2022-10-12 19:22:01 +04:00
iova-tree.c	util: accept iova_tree_remove_parameter by value	2022-09-02 10:22:39 +08:00
keyval.c	include: add qemu/keyval.h	2022-04-21 17:03:51 +04:00
lockcnt.c
log.c	util/log: Always send errors to logfile when daemonized	2023-01-06 00:50:32 +01:00
main-loop.c	error handling: Use RETRY_ON_EINTR() macro where applicable	2023-01-09 13:50:47 +01:00
memalign.c	osdep: Move memalign-related functions to their own header	2022-03-07 13:16:49 +00:00
memfd.c
meson.build	accel: introduce accelerator blocker API	2023-01-11 09:59:39 +01:00
mmap-alloc.c	util/mmap-alloc: Remove qemu_mempath_getpagesize()	2022-08-26 13:34:21 +02:00
module.c	module: add Error arguments to module_load and module_load_qom	2022-11-06 09:48:50 +01:00
notify.c
nvdimm-utils.c
osdep.c	error handling: Use RETRY_ON_EINTR() macro where applicable	2023-01-09 13:50:47 +01:00
oslib-posix.c	util: Make qemu_prealloc_mem() optionally consume a ThreadContext	2022-10-27 11:00:56 +02:00
oslib-win32.c	util/oslib-win32: Remove obsolete reference to g_poll code	2022-12-15 15:19:24 +01:00
path.c
qdist.c
qemu-co-shared-resource.c
qemu-co-timeout.c	util: add qemu-co-timeout	2022-06-29 10:56:12 +03:00
qemu-config.c	util/qemu-config: Fix "query-command-line-options" to provide the right values	2022-12-15 15:19:23 +01:00
qemu-coroutine-io.c	Remove qemu-common.h include from most units	2022-04-06 14:31:55 +02:00
qemu-coroutine-lock.c	coroutine: add flag to re-queue at front of CoQueue	2022-10-26 14:56:42 -04:00
qemu-coroutine-sleep.c
qemu-coroutine.c	coroutine: remove incorrect coroutine_fn annotations	2022-10-07 12:11:40 +02:00
qemu-option.c
qemu-print.c
qemu-progress.c	include: move progress API to qemu-progress.h	2022-04-06 14:31:43 +02:00
qemu-sockets.c	sockets: Use ERRP_GUARD() where obviously appropriate	2022-12-14 16:19:35 +01:00
qemu-thread-common.h
qemu-thread-posix.c	util: Introduce qemu_thread_set_affinity() and qemu_thread_get_affinity()	2022-10-27 11:00:36 +02:00
qemu-thread-win32.c	util: Introduce qemu_thread_set_affinity() and qemu_thread_get_affinity()	2022-10-27 11:00:36 +02:00
qemu-timer-common.c
qemu-timer.c	qemu-timer: Skip empty timer lists before locking in qemu_clock_deadline_ns_all	2022-06-21 09:24:34 -07:00
qht.c	osdep: Move memalign-related functions to their own header	2022-03-07 13:16:49 +00:00
qsp.c
range.c
rcu.c
readline.c
selfmap.c
stats64.c
sys_membarrier.c
systemd.c
thread-context.c	qapi: Use returned bool to check for failure (again)	2022-12-14 16:19:35 +01:00
thread-pool.c	thread-pool: remove stopping variable	2022-05-25 21:26:26 +02:00
throttle.c
timed-average.c
trace-events
trace.h
transactions.c
unicode.c
uri.c
userfaultfd.c
uuid.c
vfio-helpers.c	error handling: Use RETRY_ON_EINTR() macro where applicable	2023-01-09 13:50:47 +01:00
vhost-user-server.c	util: rename qemu_*block() socket functions	2022-05-03 15:53:20 +04:00
yank.c