motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-07-27 04:13:53 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

cpus-common: move exclusive work infrastructure from linux-user

Browse source 
This will serve as the base for async_safe_run_on_cpu.  Because
start_exclusive uses CPU_FOREACH, merge exclusive_lock with
qemu_cpu_list_lock: together with a call to exclusive_idle (via
cpu_exec_start/end) in cpu_list_add, this protects exclusive work
against concurrent CPU addition and removal.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2016-08-31 16:56:04 +02:00
parent 0e55539c07
commit ab129972c8
5 changed files with 127 additions and 105 deletions
Download patch file Download diff file Expand all files Collapse all files

17
bsd-user/main.c
View file

@ -67,23 +67,6 @@ int cpu_get_pic_interrupt(CPUX86State *env)
}
#endif
/* These are no-ops because we are not threadsafe. */
static inline void cpu_exec_start(CPUState *cpu)
{
}
static inline void cpu_exec_end(CPUState *cpu)
{
}
static inline void start_exclusive(void)
{
}
static inline void end_exclusive(void)
{
}
void fork_start(void)
{
}