diff options
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/arch/amd64/amd64/mp.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/sys/arch/amd64/amd64/mp.c b/sys/arch/amd64/amd64/mp.c index 21881b2..20f550f 100644 --- a/sys/arch/amd64/amd64/mp.c +++ b/sys/arch/amd64/amd64/mp.c @@ -56,6 +56,7 @@ static void ap_trampoline(struct limine_smp_info *si) { struct cpu_info *ci; + struct proc *idle; ci = dynalloc(sizeof(*ci)); __assert(ci != NULL); @@ -64,6 +65,11 @@ ap_trampoline(struct limine_smp_info *si) cpu_startup(ci); spinlock_acquire(&ci_list_lock); ci_list[ncpu_up] = ci; + + ci->id = ncpu_up; + spawn(&g_proc0, sched_enter, NULL, 0, &idle); + proc_pin(idle, ci->id); + spinlock_release(&ci_list_lock); atomic_inc_int(&ncpu_up); @@ -110,6 +116,7 @@ mp_bootstrap_aps(struct cpu_info *ci) { struct limine_smp_response *resp = g_smp_req.response; struct limine_smp_info **cpus; + struct proc *idle; size_t cpu_init_counter; uint32_t ncpu; @@ -121,6 +128,10 @@ mp_bootstrap_aps(struct cpu_info *ci) cpu_init_counter = ncpu - 1; ci_list[0] = ci; + /* Pin an idle thread to the BSP */ + spawn(&g_proc0, sched_enter, NULL, 0, &idle); + proc_pin(idle, 0); + if (resp->cpu_count == 1) { pr_trace("CPU has 1 core, no APs to bootstrap...\n"); return; @@ -136,12 +147,6 @@ mp_bootstrap_aps(struct cpu_info *ci) cpus[i]->goto_address = ap_trampoline; } - /* Start up idle threads */ - pr_trace("kicking %d idle threads...\n", ncpu); - for (uint32_t i = 0; i < ncpu; ++i) { - spawn(&g_proc0, sched_enter, NULL, 0, NULL); - } - /* Wait for all cores to be ready */ while ((ncpu_up - 1) < cpu_init_counter); } |