diff options
Diffstat (limited to 'linux-user/syscall.c')
| -rw-r--r-- | linux-user/syscall.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 389ec09764..9522f603aa 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -6481,6 +6481,16 @@ static int do_fork(CPUArchState *env, unsigned int flags, abi_ulong newsp, /* Grab a mutex so that thread setup appears atomic. */ pthread_mutex_lock(&clone_lock); + /* + * If this is our first additional thread, we need to ensure we + * generate code for parallel execution and flush old translations. + * Do this now so that the copy gets CF_PARALLEL too. + */ + if (!(cpu->tcg_cflags & CF_PARALLEL)) { + cpu->tcg_cflags |= CF_PARALLEL; + tb_flush(cpu); + } + /* we create a new CPU instance. */ new_env = cpu_copy(env); /* Init regs that differ from the parent. */ @@ -6521,14 +6531,6 @@ static int do_fork(CPUArchState *env, unsigned int flags, abi_ulong newsp, sigprocmask(SIG_BLOCK, &sigmask, &info.sigmask); cpu->random_seed = qemu_guest_random_seed_thread_part1(); - /* If this is our first additional thread, we need to ensure we - * generate code for parallel execution and flush old translations. - */ - if (!parallel_cpus) { - parallel_cpus = true; - tb_flush(cpu); - } - ret = pthread_create(&info.thread, &attr, clone_func, &info); /* TODO: Free new CPU state if thread creation failed. */ |