qemu/target/i386
Stefan Hajnoczi 195801d700 system/cpus: rename qemu_mutex_lock_iothread() to bql_lock()
The Big QEMU Lock (BQL) has many names and they are confusing. The
actual QemuMutex variable is called qemu_global_mutex but it's commonly
referred to as the BQL in discussions and some code comments. The
locking APIs, however, are called qemu_mutex_lock_iothread() and
qemu_mutex_unlock_iothread().

The "iothread" name is historic and comes from when the main thread was
split into into KVM vcpu threads and the "iothread" (now called the main
loop thread). I have contributed to the confusion myself by introducing
a separate --object iothread, a separate concept unrelated to the BQL.

The "iothread" name is no longer appropriate for the BQL. Rename the
locking APIs to:
- void bql_lock(void)
- void bql_unlock(void)
- bool bql_locked(void)

There are more APIs with "iothread" in their names. Subsequent patches
will rename them. There are also comments and documentation that will be
updated in later patches.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Paul Durrant <paul@xen.org>
Acked-by: Fabiano Rosas <farosas@suse.de>
Acked-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Acked-by: Peter Xu <peterx@redhat.com>
Acked-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Acked-by: Hyman Huang <yong.huang@smartx.com>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-id: 20240102153529.486531-2-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2024-01-08 10:45:43 -05:00
..
hvf system/cpus: rename qemu_mutex_lock_iothread() to bql_lock() 2024-01-08 10:45:43 -05:00
kvm system/cpus: rename qemu_mutex_lock_iothread() to bql_lock() 2024-01-08 10:45:43 -05:00
nvmm system/cpus: rename qemu_mutex_lock_iothread() to bql_lock() 2024-01-08 10:45:43 -05:00
tcg system/cpus: rename qemu_mutex_lock_iothread() to bql_lock() 2024-01-08 10:45:43 -05:00
whpx system/cpus: rename qemu_mutex_lock_iothread() to bql_lock() 2024-01-08 10:45:43 -05:00
arch_dump.c dump: Replace opaque DumpState pointer with a typed one 2022-10-06 19:30:43 +04:00
arch_memory_mapping.c memory: follow Error API guidelines 2023-10-19 23:13:27 +02:00
cpu-dump.c target/i386: Remove x86_cpu_dump_local_apic_state() dead stub 2023-02-27 22:29:01 +01:00
cpu-internal.h i386: split off sysemu part of cpu.c 2021-05-10 15:41:52 -04:00
cpu-param.h target/i386: Remove NB_MMU_MODES define 2023-03-13 06:44:37 -07:00
cpu-qom.h target: Move ArchCPUClass definition to 'cpu.h' 2023-11-07 13:08:48 +01:00
cpu-sysemu.c target/i386/cpu-sysemu: Inline kvm_apic_in_kernel() 2023-09-07 13:32:37 +02:00
cpu.c target: Use generic cpu_model_from_type() 2024-01-05 16:20:14 +01:00
cpu.h target/i386: introduce flags writeback mechanism 2023-12-29 22:04:30 +01:00
gdbstub.c gdbstub: move register helpers into standalone include 2023-03-07 20:44:08 +00:00
helper.c target/i386/helper: Restrict KVM declarations to system emulation 2023-09-07 13:32:37 +02:00
helper.h target/i386: implement SYSCALL/SYSRET in 32-bit emulators 2023-06-26 10:23:56 +02:00
host-cpu.c *: Add missing includes of qemu/error-report.h 2023-03-22 15:06:57 +00:00
host-cpu.h accel-cpu: make cpu_realizefn return a bool 2021-05-10 15:41:50 -04:00
Kconfig meson: Introduce target-specific Kconfig 2021-07-09 18:21:34 +02:00
machine.c target/i386: Constify VMState in machine.c 2023-12-29 11:17:30 +11:00
meson.build meson: Rename target_softmmu_arch -> target_system_arch 2023-10-07 19:03:07 +02:00
monitor.c target/i386/monitor: synchronize cpu state for lapic info 2023-11-07 12:13:27 +01:00
ops_sse.h target/i386: implement SHA instructions 2023-10-25 17:35:07 +02:00
sev-sysemu-stub.c error: Drop superfluous #include "qapi/qmp/qerror.h" 2023-02-23 13:56:14 +01:00
sev.c migration: simplify blockers 2023-10-20 08:51:41 +02:00
sev.h bulk: Do not declare function prototypes using 'extern' keyword 2023-08-31 19:47:43 +02:00
svm.h target/i386: check intercept for XSETBV 2023-10-17 15:20:53 +02:00
trace-events * Update the references to some doc files (use *.rst instead of *.txt) 2021-06-02 17:08:11 +01:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
xsave_helper.c x86: add support for KVM_CAP_XSAVE2 and AMX state migration 2022-03-15 11:50:50 +01:00