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interrupt_syscall: interrupt valid thread

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This commit is contained in:
Tomoki Shirasawa
2016-10-03 00:49:56 +09:00
parent 8d21846562
commit e03f377326
5 changed files with 9 additions and 35 deletions
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17
executer/user/mcexec.c
View File

@ -1954,21 +1954,6 @@ int main_loop(int fd, int cpu, pthread_mutex_t *lock)
#endif
case __NR_gettid:{
int mode = w.sr.args[0];
int remote_pid = w.sr.args[1];
int newcpuid = w.sr.args[2];
int oldcpuid = w.sr.args[3];
int wtid = thread_data[newcpuid].remote_tid;
if(mode == 0){
thread_data[ncpu].remote_tid = wtid;
thread_data[newcpuid].remote_tid = remote_pid;
}
else if(mode == 2){
thread_data[newcpuid].remote_tid = thread_data[oldcpuid].remote_tid;
thread_data[oldcpuid].remote_tid = wtid;
}
/*
* Number of TIDs and the remote physical address where TIDs are
* expected are passed in arg 4 and 5, respectively.
@ -2002,7 +1987,7 @@ int main_loop(int fd, int cpu, pthread_mutex_t *lock)
free(tids);
}
gettid_out:
do_syscall_return(fd, cpu, thread_data[newcpuid].remote_tid, 0, 0, 0, 0);
do_syscall_return(fd, cpu, 0, 0, 0, 0, 0);
break;
}

3
kernel/host.c
View File

@ -613,8 +613,7 @@ static int syscall_packet_handler(struct ihk_ikc_channel_desc *c,
dkprintf("SCD_MSG_SCHEDULE_PROCESS: %lx\n", packet->arg);
thread = (struct thread *)packet->arg;
proc = thread->proc;
settid(thread, 0, cpuid, -1, 0, NULL);
thread->tid = proc->pid;
proc->status = PS_RUNNING;
thread->status = PS_RUNNING;
chain_thread(thread);

2
kernel/include/process.h
View File

@ -690,7 +690,5 @@ void chain_thread(struct thread *);
void proc_init();
void set_timer();
struct sig_pending *hassigpending(struct thread *thread);
void settid(struct thread *thread, int mode, int newcpuid, int oldcpuid,
int nr_tids, int *tids);
#endif

1
kernel/process.c
View File

@ -2551,7 +2551,6 @@ static void do_migrate(void)
v->flags |= CPU_FLAG_NEED_RESCHED;
ihk_mc_interrupt_cpu(get_x86_cpu_local_variable(cpu_id)->apic_id, 0xd1);
double_rq_unlock(cur_v, v, irqstate);
//settid(req->thread, 2, cpu_id, old_cpu_id, 0, NULL);
ack:
waitq_wakeup(&req->wq);

21
kernel/syscall.c
View File

@ -143,9 +143,11 @@ static void send_syscall(struct syscall_request *req, int cpu, int pid, struct s
/* XXX: is this really going to work if multiple processes
* exit/receive signals at the same time?? */
cpu = num_processors;
if(req->number == __NR_kill)
if (req->number == __NR_kill) {
req->rtid = -1;
pid = req->args[0];
if(req->number == __NR_gettid)
}
if (req->number == __NR_gettid)
pid = req->args[1];
}
else{
@ -1487,27 +1489,18 @@ SYSCALL_DECLARE(getppid)
return thread->proc->ppid_parent->pid;
}
void settid(struct thread *thread, int mode, int newcpuid, int oldcpuid,
int nr_tids, int *tids)
static void settid(struct thread *thread, int nr_tids, int *tids)
{
struct syscall_request request IHK_DMA_ALIGN;
unsigned long rc;
request.number = __NR_gettid;
request.args[0] = mode;
request.args[1] = thread->proc->pid;
request.args[2] = newcpuid;
request.args[3] = oldcpuid;
/*
* If nr_tids is non-zero, tids should point to an array of ints
* where the thread ids of the mcexec process are expected.
*/
request.args[4] = nr_tids;
request.args[5] = virt_to_phys(tids);
rc = do_syscall(&request, ihk_mc_get_processor_id(), thread->proc->pid);
if (mode != 2) {
thread->tid = rc;
}
do_syscall(&request, ihk_mc_get_processor_id(), thread->proc->pid);
}
SYSCALL_DECLARE(gettid)
@ -1930,7 +1923,7 @@ unsigned long do_fork(int clone_flags, unsigned long newsp,
return -ENOMEM;
}
settid(new, 1, cpuid, -1, num_processors, tids);
settid(new, num_processors, tids);
for (i = 0; (i < num_processors) && tids[i]; ++i) {
dkprintf("%s: tid[%d]: %d\n", __FUNCTION__, i, tids[i]);