diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86_64/kernel/head64.c | 3 | ||||
| -rw-r--r-- | arch/x86_64/kernel/setup64.c | 3 | ||||
| -rw-r--r-- | arch/x86_64/kernel/smpboot.c | 17 |
3 files changed, 22 insertions, 1 deletions
diff --git a/arch/x86_64/kernel/head64.c b/arch/x86_64/kernel/head64.c index b675c5add01..2ea42ceb08f 100644 --- a/arch/x86_64/kernel/head64.c +++ b/arch/x86_64/kernel/head64.c @@ -92,6 +92,9 @@ void __init x86_64_start_kernel(char * real_mode_data) memcpy(init_level4_pgt, boot_level4_pgt, PTRS_PER_PGD*sizeof(pgd_t)); asm volatile("movq %0,%%cr3" :: "r" (__pa_symbol(&init_level4_pgt))); + for (i = 0; i < NR_CPUS; i++) + cpu_pda(i) = &boot_cpu_pda[i]; + pda_init(0); copy_bootdata(real_mode_data); #ifdef CONFIG_SMP diff --git a/arch/x86_64/kernel/setup64.c b/arch/x86_64/kernel/setup64.c index 66325a79ed5..6eff51e9400 100644 --- a/arch/x86_64/kernel/setup64.c +++ b/arch/x86_64/kernel/setup64.c @@ -30,7 +30,8 @@ char x86_boot_params[BOOT_PARAM_SIZE] __initdata = {0,}; cpumask_t cpu_initialized __cpuinitdata = CPU_MASK_NONE; -struct x8664_pda _cpu_pda[NR_CPUS] __cacheline_aligned; +struct x8664_pda *_cpu_pda[NR_CPUS] __read_mostly; +struct x8664_pda boot_cpu_pda[NR_CPUS] __cacheline_aligned; struct desc_ptr idt_descr = { 256 * 16, (unsigned long) idt_table }; diff --git a/arch/x86_64/kernel/smpboot.c b/arch/x86_64/kernel/smpboot.c index 4884ca12444..c8169d066cb 100644 --- a/arch/x86_64/kernel/smpboot.c +++ b/arch/x86_64/kernel/smpboot.c @@ -757,6 +757,23 @@ static int __cpuinit do_boot_cpu(int cpu, int apicid) return -1; } + /* Allocate node local memory for AP pdas */ + if (cpu_pda(cpu) == &boot_cpu_pda[cpu]) { + struct x8664_pda *newpda, *pda; + int node = cpu_to_node(cpu); + pda = cpu_pda(cpu); + newpda = kmalloc_node(sizeof (struct x8664_pda), GFP_ATOMIC, + node); + if (newpda) { + memcpy(newpda, pda, sizeof (struct x8664_pda)); + cpu_pda(cpu) = newpda; + } else + printk(KERN_ERR + "Could not allocate node local PDA for CPU %d on node %d\n", + cpu, node); + } + + c_idle.idle = get_idle_for_cpu(cpu); if (c_idle.idle) { |