do_syscall: Delegate system calls to the mcexec with the same pid
This includes the following fix: send_syscall, do_syscall: remove argument pid Fujitsu: POSTK_TEMP_FIX_26 Refs: #1165 Change-Id: I702362c07a28f507a5e43dd751949aefa24bc8c0
This commit is contained in:
Tomoki Shirasawa
committed by
Masamichi Takagi
Masamichi Takagi
parent
c23bc8d401
commit
7e342751a2
@ -348,9 +348,9 @@ struct syscall_post {
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SYSCALL_ARG_##a2(2); SYSCALL_ARG_##a3(3); \
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SYSCALL_ARG_##a4(4); SYSCALL_ARG_##a5(5);
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#define SYSCALL_FOOTER return do_syscall(&request, ihk_mc_get_processor_id(), 0)
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#define SYSCALL_FOOTER return do_syscall(&request, ihk_mc_get_processor_id())
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extern long do_syscall(struct syscall_request *req, int cpu, int pid);
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extern long do_syscall(struct syscall_request *req, int cpu);
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int obtain_clone_cpuid(cpu_set_t *cpu_set, int use_last);
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extern long syscall_generic_forwarding(int n, ihk_mc_user_context_t *ctx);
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@ -993,7 +993,7 @@ void coredump(struct thread *thread, void *regs)
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request.args[0] = chunks;
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request.args[1] = virt_to_phys(coretable);
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/* no data for now */
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ret = do_syscall(&request, thread->cpu_id, thread->proc->pid);
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ret = do_syscall(&request, thread->cpu_id);
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if (ret == 0) {
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kprintf("dumped core.\n");
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} else {
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173
kernel/syscall.c
173
kernel/syscall.c
@ -148,24 +148,13 @@ long (*linux_wait_event)(void *_resp, unsigned long nsec_timeout);
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int (*linux_printk)(const char *fmt, ...);
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int (*linux_clock_gettime)(clockid_t clk_id, struct timespec *tp);
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static void send_syscall(struct syscall_request *req, int cpu, int pid, struct syscall_response *res)
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static void send_syscall(struct syscall_request *req, int cpu,
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struct syscall_response *res)
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{
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struct ikc_scd_packet packet IHK_DMA_ALIGN;
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struct ihk_ikc_channel_desc *syscall_channel = get_cpu_local_var(cpu)->ikc2linux;
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int ret;
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if(req->number == __NR_exit_group ||
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req->number == __NR_kill){ // interrupt syscall
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#ifndef POSTK_DEBUG_TEMP_FIX_26 /* do_syscall arg pid is not targetpid */
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if (req->number == __NR_kill) {
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req->rtid = -1; // no response
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pid = req->args[0];
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}
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if (req->number == __NR_gettid)
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pid = req->args[1];
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#endif /* !POSTK_DEBUG_TEMP_FIX_26 */
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}
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res->status = 0;
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req->valid = 0;
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@ -177,11 +166,7 @@ static void send_syscall(struct syscall_request *req, int cpu, int pid, struct s
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#ifdef SYSCALL_BY_IKC
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packet.msg = SCD_MSG_SYSCALL_ONESIDE;
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packet.ref = cpu;
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#ifdef POSTK_DEBUG_TEMP_FIX_26 /* do_syscall arg pid is not targetpid */
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packet.pid = pid;
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#else /* POSTK_DEBUG_TEMP_FIX_26 */
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packet.pid = pid ? pid : cpu_local_var(current)->proc->pid;
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#endif /* POSTK_DEBUG_TEMP_FIX_26 */
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packet.pid = cpu_local_var(current)->proc->pid;
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packet.resp_pa = virt_to_phys(res);
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dkprintf("send syscall, nr: %d, pid: %d\n", req->number, packet.pid);
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@ -192,7 +177,7 @@ static void send_syscall(struct syscall_request *req, int cpu, int pid, struct s
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#endif
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}
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long do_syscall(struct syscall_request *req, int cpu, int pid)
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long do_syscall(struct syscall_request *req, int cpu)
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{
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struct syscall_response res;
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struct syscall_request req2 IHK_DMA_ALIGN;
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@ -211,9 +196,6 @@ long do_syscall(struct syscall_request *req, int cpu, int pid)
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t_s = rdtsc();
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}
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#endif // PROFILE_ENABLE
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#ifdef POSTK_DEBUG_TEMP_FIX_26 /* do_syscall arg pid is not targetpid */
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int target_pid = pid;
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#endif /* POSTK_DEBUG_TEMP_FIX_26 */
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dkprintf("SC(%d)[%3d] sending syscall\n",
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ihk_mc_get_processor_id(),
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@ -224,52 +206,10 @@ long do_syscall(struct syscall_request *req, int cpu, int pid)
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barrier();
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#ifdef POSTK_DEBUG_TEMP_FIX_26 /* do_syscall arg pid is not targetpid */
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switch (req->number) {
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case __NR_kill:
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req->rtid = -1; // no response
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target_pid = req->args[0];
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break;
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case __NR_gettid:
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target_pid = req->args[1];
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break;
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default:
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break;
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}
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target_pid = target_pid ? target_pid : proc->pid;
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#endif /* POSTK_DEBUG_TEMP_FIX_26 */
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if(req->number != __NR_exit_group){
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#ifdef POSTK_DEBUG_TEMP_FIX_26 /* do_syscall arg pid is not targetpid */
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#ifdef POSTK_DEBUG_TEMP_FIX_48 /* nohost flag missed fix */
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struct process *target_proc = NULL;
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struct mcs_rwlock_node_irqsave lock;
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if (target_pid != proc->pid) {
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target_proc = find_process(target_pid, &lock);
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if (!target_proc) {
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return -EPIPE;
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}
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process_unlock(target_proc, &lock);
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} else {
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target_proc = proc;
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}
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if (target_proc->nohost) { // host is down
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if (proc->nohost) {// host is down
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return -EPIPE;
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}
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#else /* POSTK_DEBUG_TEMP_FIX_48 */
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if (proc->nohost && // host is down
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target_pid == proc->pid) {
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return -EPIPE;
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}
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#endif /* POSTK_DEBUG_TEMP_FIX_48 */
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#else /* POSTK_DEBUG_TEMP_FIX_26 */
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if(proc->nohost && // host is down
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pid == proc->pid) {
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return -EPIPE;
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}
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#endif /* POSTK_DEBUG_TEMP_FIX_26 */
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++thread->in_syscall_offload;
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}
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@ -289,11 +229,7 @@ long do_syscall(struct syscall_request *req, int cpu, int pid)
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req->ttid = 0;
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}
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res.req_thread_status = IHK_SCD_REQ_THREAD_SPINNING;
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#ifdef POSTK_DEBUG_TEMP_FIX_26 /* do_syscall arg pid is not targetpid */
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send_syscall(req, cpu, target_pid, &res);
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#else /* POSTK_DEBUG_TEMP_FIX_26 */
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send_syscall(req, cpu, pid, &res);
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#endif /* POSTK_DEBUG_TEMP_FIX_26 */
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send_syscall(req, cpu, &res);
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if (req->rtid == -1) {
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preempt_disable();
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@ -387,11 +323,7 @@ long do_syscall(struct syscall_request *req, int cpu, int pid)
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req2.ttid = res.stid;
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res.req_thread_status = IHK_SCD_REQ_THREAD_SPINNING;
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#ifdef POSTK_DEBUG_TEMP_FIX_26 /* do_syscall arg pid is not targetpid */
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send_syscall(&req2, cpu, target_pid, &res);
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#else /* POSTK_DEBUG_TEMP_FIX_26 */
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send_syscall(&req2, cpu, pid, &res);
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#endif /* POSTK_DEBUG_TEMP_FIX_26 */
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send_syscall(&req2, cpu, &res);
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#ifdef PROFILE_ENABLE
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profile_event_add(PROFILE_remote_page_fault,
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(rdtsc() - t_s));
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@ -463,7 +395,7 @@ long do_syscall(struct syscall_request *req, int cpu, int pid)
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req2.ttid = res.stid;
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res.req_thread_status = IHK_SCD_REQ_THREAD_SPINNING;
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send_syscall(&req2, cpu, pid, &res);
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send_syscall(&req2, cpu, &res);
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}
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}
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if (req->rtid == -1) {
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@ -514,7 +446,6 @@ long syscall_generic_forwarding(int n, ihk_mc_user_context_t *ctx)
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static int wait_zombie(struct thread *thread, struct process *child, int *status, int options) {
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int ret;
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struct syscall_request request IHK_DMA_ALIGN;
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int ppid = 0;
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dkprintf("wait_zombie,found PS_ZOMBIE process: %d\n", child->pid);
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@ -522,7 +453,6 @@ static int wait_zombie(struct thread *thread, struct process *child, int *status
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*status = child->exit_status;
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}
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ppid = child->ppid_parent->pid;
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if(child->ppid_parent->pid != thread->proc->pid || child->nowait)
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return child->pid;
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request.number = __NR_wait4;
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@ -530,7 +460,7 @@ static int wait_zombie(struct thread *thread, struct process *child, int *status
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request.args[1] = 0;
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request.args[2] = options;
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/* Ask host to clean up exited child */
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ret = do_syscall(&request, ihk_mc_get_processor_id(), ppid);
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ret = do_syscall(&request, ihk_mc_get_processor_id());
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if (ret != child->pid)
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kprintf("WARNING: host waitpid failed?\n");
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@ -980,7 +910,7 @@ void terminate_mcexec(int rc, int sig)
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request.number = __NR_exit_group;
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request.args[0] = proc->exit_status;
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proc->nohost = 1;
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do_syscall(&request, ihk_mc_get_processor_id(), proc->pid);
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do_syscall(&request, ihk_mc_get_processor_id());
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}
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}
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@ -2029,8 +1959,7 @@ static void settid(struct thread *thread, int nr_tids, int *tids)
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*/
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request.args[4] = nr_tids;
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request.args[5] = virt_to_phys(tids);
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if ((ret = do_syscall(&request, ihk_mc_get_processor_id(),
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thread->proc->pid)) < 0) {
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if ((ret = do_syscall(&request, ihk_mc_get_processor_id())) < 0) {
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kprintf("%s: WARNING: do_syscall returns %d\n",
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__FUNCTION__, ret);
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}
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@ -2246,7 +2175,7 @@ SYSCALL_DECLARE(execve)
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request.args[0] = 1; /* 1st phase - get ELF desc */
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request.args[1] = (unsigned long)filename;
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request.args[2] = virt_to_phys(desc);
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ret = do_syscall(&request, ihk_mc_get_processor_id(), 0);
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ret = do_syscall(&request, ihk_mc_get_processor_id());
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if (ret != 0) {
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dkprintf("execve(): ERROR: host failed to load elf header, errno: %d\n",
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@ -2329,7 +2258,7 @@ SYSCALL_DECLARE(execve)
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request.args[2] = sizeof(struct program_load_desc) +
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sizeof(struct program_image_section) * desc->num_sections;
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if ((ret = do_syscall(&request, ihk_mc_get_processor_id(), 0)) != 0) {
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if ((ret = do_syscall(&request, ihk_mc_get_processor_id())) != 0) {
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goto end;
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}
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@ -2543,11 +2472,16 @@ retry_tid:
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else {
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request1.number = __NR_clone;
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request1.args[0] = 0;
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request1.args[1] = new->vm->region.user_start;
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request1.args[2] = new->vm->region.user_end -
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new->vm->region.user_start;
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request1.args[3] =
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virt_to_phys(new->vm->address_space->page_table);
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if(clone_flags & CLONE_PARENT){
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if(oldproc->ppid_parent->pid != 1)
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request1.args[0] = clone_flags;
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}
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newproc->pid = do_syscall(&request1, ihk_mc_get_processor_id(), 0);
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newproc->pid = do_syscall(&request1, ihk_mc_get_processor_id());
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if (newproc->pid < 0) {
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kprintf("ERROR: forking host process\n");
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@ -2561,24 +2495,6 @@ retry_tid:
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new->vm->address_space->pids[0] = new->proc->pid;
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dkprintf("fork(): new pid: %d\n", new->proc->pid);
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#ifndef POSTK_DEBUG_TEMP_FIX_48 /* nohost flag missed fix */
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/* clear user space PTEs and set new rpgtable so that consequent
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* page faults will look up the right mappings */
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request1.number = __NR_munmap;
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request1.args[0] = new->vm->region.user_start;
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request1.args[1] = new->vm->region.user_end -
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new->vm->region.user_start;
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/* 3rd parameter denotes new rpgtable of host process */
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request1.args[2] = virt_to_phys(new->vm->address_space->page_table);
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request1.args[3] = newproc->pid;
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dkprintf("fork(): requesting PTE clear and rpgtable (0x%lx) update\n",
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request1.args[2]);
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if (do_syscall(&request1, ihk_mc_get_processor_id(), new->proc->pid)) {
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kprintf("ERROR: clearing PTEs in host process\n");
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}
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#endif /* !POSTK_DEBUG_TEMP_FIX_48 */
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if(oldproc->monitoring_event &&
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oldproc->monitoring_event->attr.inherit){
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newproc->monitoring_event = oldproc->monitoring_event;
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@ -2672,24 +2588,6 @@ retry_tid:
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chain_process(newproc);
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}
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#ifdef POSTK_DEBUG_TEMP_FIX_48 /* nohost flag missed fix */
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/* clear user space PTEs and set new rpgtable so that consequent
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* page faults will look up the right mappings */
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request1.number = __NR_munmap;
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request1.args[0] = new->vm->region.user_start;
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request1.args[1] = new->vm->region.user_end -
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new->vm->region.user_start;
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/* 3rd parameter denotes new rpgtable of host process */
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request1.args[2] = virt_to_phys(new->vm->address_space->page_table);
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request1.args[3] = newproc->pid;
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dkprintf("fork(): requesting PTE clear and rpgtable (0x%lx) update\n",
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request1.args[2]);
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if (do_syscall(&request1, ihk_mc_get_processor_id(), new->proc->pid)) {
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kprintf("ERROR: clearing PTEs in host process\n");
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}
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#endif /* !POSTK_DEBUG_TEMP_FIX_48 */
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if (oldproc->ptrace) {
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ptrace_event = ptrace_check_clone_event(old, clone_flags);
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if (ptrace_event) {
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@ -2706,7 +2604,7 @@ retry_tid:
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request1.number = __NR_clone;
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request1.args[0] = 1;
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request1.args[1] = new->tid;
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do_syscall(&request1, ihk_mc_get_processor_id(), 0);
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do_syscall(&request1, ihk_mc_get_processor_id());
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}
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runq_add_thread(new, cpuid);
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@ -2846,7 +2744,7 @@ getcred(int *_buf)
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request.number = __NR_setfsuid;
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request.args[0] = phys;
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request.args[1] = 1;
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do_syscall(&request, ihk_mc_get_processor_id(), 0);
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do_syscall(&request, ihk_mc_get_processor_id());
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return buf;
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}
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@ -2953,7 +2851,7 @@ SYSCALL_DECLARE(setfsuid)
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request.number = __NR_setfsuid;
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request.args[0] = fsuid;
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request.args[1] = 0;
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newfsuid = do_syscall(&request, ihk_mc_get_processor_id(), 0);
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newfsuid = do_syscall(&request, ihk_mc_get_processor_id());
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#ifdef POSTK_DEBUG_TEMP_FIX_45 /* setfsgid()/setfsuid() mismatch fix. */
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do_setresuid((int)(newfsuid >> 32));
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newfsuid &= (1UL << 32) - 1;
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@ -3016,7 +2914,7 @@ SYSCALL_DECLARE(setfsgid)
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request.number = __NR_setfsgid;
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request.args[0] = fsgid;
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newfsgid = do_syscall(&request, ihk_mc_get_processor_id(), 0);
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newfsgid = do_syscall(&request, ihk_mc_get_processor_id());
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#ifdef POSTK_DEBUG_TEMP_FIX_45 /* setfsgid()/setfsuid() mismatch fix. */
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do_setresgid((int)(newfsgid >> 32));
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newfsgid &= (1UL << 32) - 1;
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@ -3469,7 +3367,7 @@ SYSCALL_DECLARE(signalfd4)
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request.number = __NR_signalfd4;
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request.args[0] = 0;
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request.args[1] = flags;
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fd = do_syscall(&request, ihk_mc_get_processor_id(), 0);
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fd = do_syscall(&request, ihk_mc_get_processor_id());
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if(fd < 0){
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return fd;
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}
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@ -4030,7 +3928,7 @@ SYSCALL_DECLARE(perf_event_open)
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request.number = __NR_perf_event_open;
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request.args[0] = 0;
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fd = do_syscall(&request, ihk_mc_get_processor_id(), 0);
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fd = do_syscall(&request, ihk_mc_get_processor_id());
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if(fd < 0){
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return fd;
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}
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@ -5476,7 +5374,8 @@ long do_futex(int n, unsigned long arg0, unsigned long arg1,
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request.args[1] = (flags & FUTEX_CLOCK_REALTIME)?
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CLOCK_REALTIME: CLOCK_MONOTONIC;
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int r = do_syscall(&request, ihk_mc_get_processor_id(), 0);
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int r = do_syscall(&request,
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ihk_mc_get_processor_id());
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if (r < 0) {
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return -EFAULT;
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@ -6592,7 +6491,7 @@ SYSCALL_DECLARE(sched_setparam)
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request1.args[0] = SCHED_CHECK_SAME_OWNER;
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request1.args[1] = pid;
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retval = do_syscall(&request1, ihk_mc_get_processor_id(), 0);
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retval = do_syscall(&request1, ihk_mc_get_processor_id());
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if (retval != 0) {
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return retval;
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}
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@ -6673,7 +6572,7 @@ SYSCALL_DECLARE(sched_setscheduler)
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request1.number = __NR_sched_setparam;
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request1.args[0] = SCHED_CHECK_ROOT;
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retval = do_syscall(&request1, ihk_mc_get_processor_id(), 0);
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retval = do_syscall(&request1, ihk_mc_get_processor_id());
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if (retval != 0) {
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return retval;
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}
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@ -6699,7 +6598,7 @@ SYSCALL_DECLARE(sched_setscheduler)
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request1.args[0] = SCHED_CHECK_SAME_OWNER;
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request1.args[1] = pid;
|
||||
|
||||
retval = do_syscall(&request1, ihk_mc_get_processor_id(), 0);
|
||||
retval = do_syscall(&request1, ihk_mc_get_processor_id());
|
||||
if (retval != 0) {
|
||||
return retval;
|
||||
}
|
||||
@ -7014,7 +6913,7 @@ SYSCALL_DECLARE(setitimer)
|
||||
request.args[1] = ihk_mc_syscall_arg1(ctx);
|
||||
request.args[2] = ihk_mc_syscall_arg2(ctx);
|
||||
|
||||
return do_syscall(&request, ihk_mc_get_processor_id(), 0);
|
||||
return do_syscall(&request, ihk_mc_get_processor_id());
|
||||
}
|
||||
else if(which == ITIMER_VIRTUAL){
|
||||
if(old){
|
||||
@ -7086,7 +6985,7 @@ SYSCALL_DECLARE(getitimer)
|
||||
request.args[0] = ihk_mc_syscall_arg0(ctx);
|
||||
request.args[1] = ihk_mc_syscall_arg1(ctx);
|
||||
|
||||
return do_syscall(&request, ihk_mc_get_processor_id(), 0);
|
||||
return do_syscall(&request, ihk_mc_get_processor_id());
|
||||
}
|
||||
else if(which == ITIMER_VIRTUAL){
|
||||
if(old){
|
||||
@ -7182,7 +7081,7 @@ SYSCALL_DECLARE(clock_gettime)
|
||||
request.args[0] = ihk_mc_syscall_arg0(ctx);
|
||||
request.args[1] = ihk_mc_syscall_arg1(ctx);
|
||||
|
||||
return do_syscall(&request, ihk_mc_get_processor_id(), 0);
|
||||
return do_syscall(&request, ihk_mc_get_processor_id());
|
||||
}
|
||||
|
||||
SYSCALL_DECLARE(gettimeofday)
|
||||
@ -7217,7 +7116,7 @@ SYSCALL_DECLARE(gettimeofday)
|
||||
request.args[0] = (unsigned long)tv;
|
||||
request.args[1] = (unsigned long)tz;
|
||||
|
||||
return do_syscall(&request, ihk_mc_get_processor_id(), 0);
|
||||
return do_syscall(&request, ihk_mc_get_processor_id());
|
||||
}
|
||||
|
||||
SYSCALL_DECLARE(settimeofday)
|
||||
@ -7337,7 +7236,7 @@ SYSCALL_DECLARE(nanosleep)
|
||||
request.args[0] = (unsigned long)tv;
|
||||
request.args[1] = (unsigned long)rem;
|
||||
|
||||
return do_syscall(&request, ihk_mc_get_processor_id(), 0);
|
||||
return do_syscall(&request, ihk_mc_get_processor_id());
|
||||
}
|
||||
|
||||
//#define DISABLE_SCHED_YIELD
|
||||
@ -9172,7 +9071,7 @@ int util_thread(struct uti_attr *arg)
|
||||
request.args[3] = (unsigned long)uti_clv;
|
||||
request.args[4] = uti_desc;
|
||||
thread->uti_state = UTI_STATE_RUNNING_IN_LINUX;
|
||||
rc = do_syscall(&request, ihk_mc_get_processor_id(), 0);
|
||||
rc = do_syscall(&request, ihk_mc_get_processor_id());
|
||||
dkprintf("%s: returned from do_syscall,tid=%d,rc=%lx\n", __FUNCTION__, thread->tid, rc);
|
||||
|
||||
thread->uti_state = UTI_STATE_EPILOGUE;
|
||||
|
||||
@ -83,7 +83,7 @@ int xpmem_open(
|
||||
request.number = __NR_open;
|
||||
request.args[0] = (unsigned long)pathname;
|
||||
request.args[1] = flags;
|
||||
fd = do_syscall(&request, ihk_mc_get_processor_id(), 0);
|
||||
fd = do_syscall(&request, ihk_mc_get_processor_id());
|
||||
if (fd < 0) {
|
||||
XPMEM_DEBUG("__NR_open error: fd=%d", fd);
|
||||
return fd;
|
||||
|
||||
Reference in New Issue
Block a user