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sys/amd64/amd64/mp_machdep.c
| Show First 20 Lines • Show All 97 Lines • ▼ Show 20 Lines | |||||
| #define AP_BOOTPT_SZ (PAGE_SIZE * 4) | #define AP_BOOTPT_SZ (PAGE_SIZE * 4) | ||||
| /* Temporary variables for init_secondary() */ | /* Temporary variables for init_secondary() */ | ||||
| static char *doublefault_stack; | static char *doublefault_stack; | ||||
| static char *mce_stack; | static char *mce_stack; | ||||
| static char *nmi_stack; | static char *nmi_stack; | ||||
| static char *dbg_stack; | static char *dbg_stack; | ||||
| void *bootpcpu; | |||||
| extern u_int mptramp_la57; | extern u_int mptramp_la57; | ||||
| extern u_int mptramp_nx; | extern u_int mptramp_nx; | ||||
| /* | /* | ||||
| * Local data and functions. | * Local data and functions. | ||||
| */ | */ | ||||
| ▲ Show 20 Lines • Show All 78 Lines • ▼ Show 20 Lines | init_secondary(void) | ||||
| int cpu, gsel_tss, x; | int cpu, gsel_tss, x; | ||||
| /* Set by the startup code for us to use */ | /* Set by the startup code for us to use */ | ||||
| cpu = bootAP; | cpu = bootAP; | ||||
| /* Update microcode before doing anything else. */ | /* Update microcode before doing anything else. */ | ||||
| ucode_load_ap(cpu); | ucode_load_ap(cpu); | ||||
| /* Get per-cpu data and save */ | /* Initialize the PCPU area. */ | ||||
| pc = &__pcpu[cpu]; | pc = bootpcpu; | ||||
| /* prime data page for it to use */ | |||||
| pcpu_init(pc, cpu, sizeof(struct pcpu)); | pcpu_init(pc, cpu, sizeof(struct pcpu)); | ||||
| dpcpu_init(dpcpu, cpu); | dpcpu_init(dpcpu, cpu); | ||||
| pc->pc_apic_id = cpu_apic_ids[cpu]; | pc->pc_apic_id = cpu_apic_ids[cpu]; | ||||
| pc->pc_prvspace = pc; | pc->pc_prvspace = pc; | ||||
| pc->pc_curthread = 0; | pc->pc_curthread = 0; | ||||
| pc->pc_tssp = &pc->pc_common_tss; | pc->pc_tssp = &pc->pc_common_tss; | ||||
| pc->pc_rsp0 = 0; | pc->pc_rsp0 = 0; | ||||
| pc->pc_pti_rsp0 = (((vm_offset_t)&pc->pc_pti_stack + | pc->pc_pti_rsp0 = (((vm_offset_t)&pc->pc_pti_stack + | ||||
| ▲ Show 20 Lines • Show All 45 Lines • ▼ Show 20 Lines | init_secondary(void) | ||||
| } | } | ||||
| ssdtosyssd(&gdt_segs[GPROC0_SEL], | ssdtosyssd(&gdt_segs[GPROC0_SEL], | ||||
| (struct system_segment_descriptor *)&gdt[GPROC0_SEL]); | (struct system_segment_descriptor *)&gdt[GPROC0_SEL]); | ||||
| ap_gdt.rd_limit = NGDT * sizeof(gdt[0]) - 1; | ap_gdt.rd_limit = NGDT * sizeof(gdt[0]) - 1; | ||||
| ap_gdt.rd_base = (u_long)gdt; | ap_gdt.rd_base = (u_long)gdt; | ||||
| lgdt(&ap_gdt); /* does magic intra-segment return */ | lgdt(&ap_gdt); /* does magic intra-segment return */ | ||||
| wrmsr(MSR_FSBASE, 0); /* User value */ | wrmsr(MSR_FSBASE, 0); /* User value */ | ||||
| wrmsr(MSR_GSBASE, (u_int64_t)pc); | wrmsr(MSR_GSBASE, (uint64_t)pc); | ||||
| wrmsr(MSR_KGSBASE, (u_int64_t)pc); /* XXX User value while we're in the kernel */ | wrmsr(MSR_KGSBASE, 0); /* User value */ | ||||
| fix_cpuid(); | fix_cpuid(); | ||||
| lidt(&r_idt); | lidt(&r_idt); | ||||
| gsel_tss = GSEL(GPROC0_SEL, SEL_KPL); | gsel_tss = GSEL(GPROC0_SEL, SEL_KPL); | ||||
| ltr(gsel_tss); | ltr(gsel_tss); | ||||
| /* | /* | ||||
| ▲ Show 20 Lines • Show All 151 Lines • ▼ Show 20 Lines | mce_stack = (char *)kmem_malloc(MCE_STACK_SIZE, | ||||
| M_WAITOK | M_ZERO); | M_WAITOK | M_ZERO); | ||||
| nmi_stack = (char *)kmem_malloc_domainset( | nmi_stack = (char *)kmem_malloc_domainset( | ||||
| DOMAINSET_PREF(domain), NMI_STACK_SIZE, M_WAITOK | M_ZERO); | DOMAINSET_PREF(domain), NMI_STACK_SIZE, M_WAITOK | M_ZERO); | ||||
| dbg_stack = (char *)kmem_malloc_domainset( | dbg_stack = (char *)kmem_malloc_domainset( | ||||
| DOMAINSET_PREF(domain), DBG_STACK_SIZE, M_WAITOK | M_ZERO); | DOMAINSET_PREF(domain), DBG_STACK_SIZE, M_WAITOK | M_ZERO); | ||||
| dpcpu = (void *)kmem_malloc_domainset(DOMAINSET_PREF(domain), | dpcpu = (void *)kmem_malloc_domainset(DOMAINSET_PREF(domain), | ||||
| DPCPU_SIZE, M_WAITOK | M_ZERO); | DPCPU_SIZE, M_WAITOK | M_ZERO); | ||||
| bootpcpu = &__pcpu[cpu]; | |||||
| bootSTK = (char *)bootstacks[cpu] + | bootSTK = (char *)bootstacks[cpu] + | ||||
| kstack_pages * PAGE_SIZE - 8; | kstack_pages * PAGE_SIZE - 8; | ||||
| bootAP = cpu; | bootAP = cpu; | ||||
| /* attempt to start the Application Processor */ | /* attempt to start the Application Processor */ | ||||
| if (!start_ap(apic_id)) { | if (!start_ap(apic_id)) { | ||||
| /* restore the warmstart vector */ | /* restore the warmstart vector */ | ||||
| *(u_int32_t *) WARMBOOT_OFF = mpbioswarmvec; | *(u_int32_t *) WARMBOOT_OFF = mpbioswarmvec; | ||||
| ▲ Show 20 Lines • Show All 656 Lines • Show Last 20 Lines | |||||