diff options
| -rw-r--r-- | arch/i386/kernel/cpu/common.c | 13 | ||||
| -rw-r--r-- | arch/i386/kernel/smpboot.c | 9 | ||||
| -rw-r--r-- | arch/i386/mach-voyager/voyager_smp.c | 6 | ||||
| -rw-r--r-- | include/asm-i386/processor.h | 1 |
4 files changed, 22 insertions, 7 deletions
diff --git a/arch/i386/kernel/cpu/common.c b/arch/i386/kernel/cpu/common.c index 8689d62..8a8bbda 100644 --- a/arch/i386/kernel/cpu/common.c +++ b/arch/i386/kernel/cpu/common.c @@ -710,11 +710,8 @@ __cpuinit int init_gdt(int cpu, struct task_struct *idle) return 1; } -/* Common CPU init for both boot and secondary CPUs */ -static void __cpuinit _cpu_init(int cpu, struct task_struct *curr) +void __cpuinit cpu_set_gdt(int cpu) { - struct tss_struct * t = &per_cpu(init_tss, cpu); - struct thread_struct *thread = &curr->thread; struct Xgt_desc_struct *cpu_gdt_descr = &per_cpu(cpu_gdt_descr, cpu); /* Reinit these anyway, even if they've already been done (on @@ -722,6 +719,13 @@ static void __cpuinit _cpu_init(int cpu, struct task_struct *curr) the real ones). */ load_gdt(cpu_gdt_descr); set_kernel_gs(); +} + +/* Common CPU init for both boot and secondary CPUs */ +static void __cpuinit _cpu_init(int cpu, struct task_struct *curr) +{ + struct tss_struct * t = &per_cpu(init_tss, cpu); + struct thread_struct *thread = &curr->thread; if (cpu_test_and_set(cpu, cpu_initialized)) { printk(KERN_WARNING "CPU#%d already initialized!\n", cpu); @@ -807,6 +811,7 @@ void __cpuinit cpu_init(void) local_irq_enable(); } + cpu_set_gdt(cpu); _cpu_init(cpu, curr); } diff --git a/arch/i386/kernel/smpboot.c b/arch/i386/kernel/smpboot.c index dea7ef9..8c6c8c5 100644 --- a/arch/i386/kernel/smpboot.c +++ b/arch/i386/kernel/smpboot.c @@ -596,6 +596,12 @@ static void __cpuinit start_secondary(void *unused) void __devinit initialize_secondary(void) { /* + * switch to the per CPU GDT we already set up + * in do_boot_cpu() + */ + cpu_set_gdt(current_thread_info()->cpu); + + /* * We don't actually need to load the full TSS, * basically just the stack pointer and the eip. */ @@ -972,9 +978,6 @@ static int __cpuinit do_boot_cpu(int apicid, int cpu) /* Stack for startup_32 can be just as for start_secondary onwards */ stack_start.esp = (void *) idle->thread.esp; - start_pda = cpu_pda(cpu); - cpu_gdt_descr = per_cpu(cpu_gdt_descr, cpu); - irq_ctx_init(cpu); x86_cpu_to_apicid[cpu] = apicid; diff --git a/arch/i386/mach-voyager/voyager_smp.c b/arch/i386/mach-voyager/voyager_smp.c index 55428e6..74aeedf 100644 --- a/arch/i386/mach-voyager/voyager_smp.c +++ b/arch/i386/mach-voyager/voyager_smp.c @@ -773,6 +773,12 @@ initialize_secondary(void) #endif /* + * switch to the per CPU GDT we already set up + * in do_boot_cpu() + */ + cpu_set_gdt(current_thread_info()->cpu); + + /* * We don't actually need to load the full TSS, * basically just the stack pointer and the eip. */ diff --git a/include/asm-i386/processor.h b/include/asm-i386/processor.h index a52d654..359f10b 100644 --- a/include/asm-i386/processor.h +++ b/include/asm-i386/processor.h @@ -743,6 +743,7 @@ extern void enable_sep_cpu(void); extern int sysenter_setup(void); extern int init_gdt(int cpu, struct task_struct *idle); +extern void cpu_set_gdt(int); extern void secondary_cpu_init(void); #endif /* __ASM_I386_PROCESSOR_H */ |