cpumask: use new cpumask functions throughout x86

[linux-2.6-block.git] / arch / x86 / xen / smp.c

diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
index 7735e3dd359c5351ef33ef818368dff5ac16f6d8..585a6e330837ffb3a9e37d50be37f93e169832e1 100644 (file)
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -158,7 +158,7 @@ static void __init xen_fill_possible_map(void)
                rc = HYPERVISOR_vcpu_op(VCPUOP_is_up, i, NULL);
                if (rc >= 0) {
                        num_processors++;
-                       cpu_set(i, cpu_possible_map);
+                       set_cpu_possible(i, true);
                }
        }
 }
@@ -170,7 +170,7 @@ static void __init xen_smp_prepare_boot_cpu(void)
 
        /* We've switched to the "real" per-cpu gdt, so make sure the
           old memory can be recycled */
-       make_lowmem_page_readwrite(&per_cpu_var(gdt_page));
+       make_lowmem_page_readwrite(xen_initial_gdt);
 
        xen_setup_vcpu_info_placement();
 }
@@ -197,7 +197,7 @@ static void __init xen_smp_prepare_cpus(unsigned int max_cpus)
        while ((num_possible_cpus() > 1) && (num_possible_cpus() > max_cpus)) {
                for (cpu = nr_cpu_ids - 1; !cpu_possible(cpu); cpu--)
                        continue;
-               cpu_clear(cpu, cpu_possible_map);
+               set_cpu_possible(cpu, false);
        }
 
        for_each_possible_cpu (cpu) {
@@ -210,7 +210,7 @@ static void __init xen_smp_prepare_cpus(unsigned int max_cpus)
                if (IS_ERR(idle))
                        panic("failed fork for CPU %d", cpu);
 
-               cpu_set(cpu, cpu_present_map);
+               set_cpu_present(cpu, true);
        }
 }
 
@@ -219,6 +219,7 @@ cpu_initialize_context(unsigned int cpu, struct task_struct *idle)
 {
        struct vcpu_guest_context *ctxt;
        struct desc_struct *gdt;
+       unsigned long gdt_mfn;
 
        if (cpumask_test_and_set_cpu(cpu, xen_cpu_initialized_map))
                return 0;
@@ -235,6 +236,8 @@ cpu_initialize_context(unsigned int cpu, struct task_struct *idle)
        ctxt->user_regs.ss = __KERNEL_DS;
 #ifdef CONFIG_X86_32
        ctxt->user_regs.fs = __KERNEL_PERCPU;
+#else
+       ctxt->gs_base_kernel = per_cpu_offset(cpu);
 #endif
        ctxt->user_regs.eip = (unsigned long)cpu_bringup_and_idle;
        ctxt->user_regs.eflags = 0x1000; /* IOPL_RING1 */
@@ -246,9 +249,12 @@ cpu_initialize_context(unsigned int cpu, struct task_struct *idle)
        ctxt->ldt_ents = 0;
 
        BUG_ON((unsigned long)gdt & ~PAGE_MASK);
+
+       gdt_mfn = arbitrary_virt_to_mfn(gdt);
        make_lowmem_page_readonly(gdt);
+       make_lowmem_page_readonly(mfn_to_virt(gdt_mfn));
 
-       ctxt->gdt_frames[0] = virt_to_mfn(gdt);
+       ctxt->gdt_frames[0] = gdt_mfn;
        ctxt->gdt_ents      = GDT_ENTRIES;
 
        ctxt->user_regs.cs = __KERNEL_CS;
@@ -284,6 +290,9 @@ static int __cpuinit xen_cpu_up(unsigned int cpu)
        irq_ctx_init(cpu);
 #else
        clear_tsk_thread_flag(idle, TIF_FORK);
+       per_cpu(kernel_stack, cpu) =
+               (unsigned long)task_stack_page(idle) -
+               KERNEL_STACK_OFFSET + THREAD_SIZE;
 #endif
        xen_setup_timer(cpu);
        xen_init_lock_cpu(cpu);