xen64: smp.c compile hacking
A number of random changes to make xen/smp.c compile in 64-bit mode. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>a Cc: Stephen Tweedie <sct@redhat.com> Cc: Eduardo Habkost <ehabkost@redhat.com> Cc: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Jeremy Fitzhardinge
Ingo Molnar
Родитель
5b09b2876e
Коммит
c7b75947f8
|
|
@ -98,7 +98,7 @@ void xen_enable_sysenter(void)
|
|||
/* Mask events on entry, even though they get enabled immediately */
|
||||
static struct callback_register sysenter = {
|
||||
.type = CALLBACKTYPE_sysenter,
|
||||
.address = { __KERNEL_CS, (unsigned long)xen_sysenter_target },
|
||||
.address = XEN_CALLBACK(__KERNEL_CS, xen_sysenter_target),
|
||||
.flags = CALLBACKF_mask_events,
|
||||
};
|
||||
|
||||
|
|
@ -143,11 +143,6 @@ void __init xen_arch_setup(void)
|
|||
|
||||
pm_idle = xen_idle;
|
||||
|
||||
#ifdef CONFIG_SMP
|
||||
/* fill cpus_possible with all available cpus */
|
||||
xen_fill_possible_map();
|
||||
#endif
|
||||
|
||||
paravirt_disable_iospace();
|
||||
|
||||
fiddle_vdso();
|
||||
|
|
|
|||
|
|
@ -66,13 +66,21 @@ static __cpuinit void cpu_bringup_and_idle(void)
|
|||
int cpu = smp_processor_id();
|
||||
|
||||
cpu_init();
|
||||
preempt_disable();
|
||||
|
||||
xen_enable_sysenter();
|
||||
|
||||
preempt_disable();
|
||||
per_cpu(cpu_state, cpu) = CPU_ONLINE;
|
||||
cpu = smp_processor_id();
|
||||
smp_store_cpu_info(cpu);
|
||||
cpu_data(cpu).x86_max_cores = 1;
|
||||
set_cpu_sibling_map(cpu);
|
||||
|
||||
xen_setup_cpu_clockevents();
|
||||
|
||||
cpu_set(cpu, cpu_online_map);
|
||||
x86_write_percpu(cpu_state, CPU_ONLINE);
|
||||
wmb();
|
||||
|
||||
/* We can take interrupts now: we're officially "up". */
|
||||
local_irq_enable();
|
||||
|
||||
|
|
@ -141,7 +149,7 @@ static int xen_smp_intr_init(unsigned int cpu)
|
|||
return rc;
|
||||
}
|
||||
|
||||
void __init xen_fill_possible_map(void)
|
||||
static void __init xen_fill_possible_map(void)
|
||||
{
|
||||
int i, rc;
|
||||
|
||||
|
|
@ -154,24 +162,12 @@ void __init xen_fill_possible_map(void)
|
|||
|
||||
static void __init xen_smp_prepare_boot_cpu(void)
|
||||
{
|
||||
int cpu;
|
||||
|
||||
BUG_ON(smp_processor_id() != 0);
|
||||
native_smp_prepare_boot_cpu();
|
||||
|
||||
/* We've switched to the "real" per-cpu gdt, so make sure the
|
||||
old memory can be recycled */
|
||||
make_lowmem_page_readwrite(&per_cpu__gdt_page);
|
||||
|
||||
for_each_possible_cpu(cpu) {
|
||||
cpus_clear(per_cpu(cpu_sibling_map, cpu));
|
||||
/*
|
||||
* cpu_core_map lives in a per cpu area that is cleared
|
||||
* when the per cpu array is allocated.
|
||||
*
|
||||
* cpus_clear(per_cpu(cpu_core_map, cpu));
|
||||
*/
|
||||
}
|
||||
make_lowmem_page_readwrite(&per_cpu_var(gdt_page));
|
||||
|
||||
xen_setup_vcpu_info_placement();
|
||||
}
|
||||
|
|
@ -180,17 +176,8 @@ static void __init xen_smp_prepare_cpus(unsigned int max_cpus)
|
|||
{
|
||||
unsigned cpu;
|
||||
|
||||
for_each_possible_cpu(cpu) {
|
||||
cpus_clear(per_cpu(cpu_sibling_map, cpu));
|
||||
/*
|
||||
* cpu_core_ map will be zeroed when the per
|
||||
* cpu area is allocated.
|
||||
*
|
||||
* cpus_clear(per_cpu(cpu_core_map, cpu));
|
||||
*/
|
||||
}
|
||||
|
||||
smp_store_cpu_info(0);
|
||||
cpu_data(0).x86_max_cores = 1;
|
||||
set_cpu_sibling_map(0);
|
||||
|
||||
if (xen_smp_intr_init(0))
|
||||
|
|
@ -225,7 +212,7 @@ static __cpuinit int
|
|||
cpu_initialize_context(unsigned int cpu, struct task_struct *idle)
|
||||
{
|
||||
struct vcpu_guest_context *ctxt;
|
||||
struct gdt_page *gdt = &per_cpu(gdt_page, cpu);
|
||||
struct desc_struct *gdt;
|
||||
|
||||
if (cpu_test_and_set(cpu, xen_cpu_initialized_map))
|
||||
return 0;
|
||||
|
|
@ -234,12 +221,15 @@ cpu_initialize_context(unsigned int cpu, struct task_struct *idle)
|
|||
if (ctxt == NULL)
|
||||
return -ENOMEM;
|
||||
|
||||
gdt = get_cpu_gdt_table(cpu);
|
||||
|
||||
ctxt->flags = VGCF_IN_KERNEL;
|
||||
ctxt->user_regs.ds = __USER_DS;
|
||||
ctxt->user_regs.es = __USER_DS;
|
||||
ctxt->user_regs.fs = __KERNEL_PERCPU;
|
||||
ctxt->user_regs.gs = 0;
|
||||
ctxt->user_regs.ss = __KERNEL_DS;
|
||||
#ifdef CONFIG_X86_32
|
||||
ctxt->user_regs.fs = __KERNEL_PERCPU;
|
||||
#endif
|
||||
ctxt->user_regs.eip = (unsigned long)cpu_bringup_and_idle;
|
||||
ctxt->user_regs.eflags = 0x1000; /* IOPL_RING1 */
|
||||
|
||||
|
|
@ -249,11 +239,11 @@ cpu_initialize_context(unsigned int cpu, struct task_struct *idle)
|
|||
|
||||
ctxt->ldt_ents = 0;
|
||||
|
||||
BUG_ON((unsigned long)gdt->gdt & ~PAGE_MASK);
|
||||
make_lowmem_page_readonly(gdt->gdt);
|
||||
BUG_ON((unsigned long)gdt & ~PAGE_MASK);
|
||||
make_lowmem_page_readonly(gdt);
|
||||
|
||||
ctxt->gdt_frames[0] = virt_to_mfn(gdt->gdt);
|
||||
ctxt->gdt_ents = ARRAY_SIZE(gdt->gdt);
|
||||
ctxt->gdt_frames[0] = virt_to_mfn(gdt);
|
||||
ctxt->gdt_ents = GDT_ENTRIES;
|
||||
|
||||
ctxt->user_regs.cs = __KERNEL_CS;
|
||||
ctxt->user_regs.esp = idle->thread.sp0 - sizeof(struct pt_regs);
|
||||
|
|
@ -261,9 +251,11 @@ cpu_initialize_context(unsigned int cpu, struct task_struct *idle)
|
|||
ctxt->kernel_ss = __KERNEL_DS;
|
||||
ctxt->kernel_sp = idle->thread.sp0;
|
||||
|
||||
#ifdef CONFIG_X86_32
|
||||
ctxt->event_callback_cs = __KERNEL_CS;
|
||||
ctxt->event_callback_eip = (unsigned long)xen_hypervisor_callback;
|
||||
ctxt->failsafe_callback_cs = __KERNEL_CS;
|
||||
#endif
|
||||
ctxt->event_callback_eip = (unsigned long)xen_hypervisor_callback;
|
||||
ctxt->failsafe_callback_eip = (unsigned long)xen_failsafe_callback;
|
||||
|
||||
per_cpu(xen_cr3, cpu) = __pa(swapper_pg_dir);
|
||||
|
|
@ -287,11 +279,28 @@ static int __cpuinit xen_cpu_up(unsigned int cpu)
|
|||
return rc;
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_X86_64
|
||||
/* Allocate node local memory for AP pdas */
|
||||
WARN_ON(cpu == 0);
|
||||
if (cpu > 0) {
|
||||
rc = get_local_pda(cpu);
|
||||
if (rc)
|
||||
return rc;
|
||||
}
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_X86_32
|
||||
init_gdt(cpu);
|
||||
per_cpu(current_task, cpu) = idle;
|
||||
irq_ctx_init(cpu);
|
||||
#else
|
||||
cpu_pda(cpu)->pcurrent = idle;
|
||||
clear_tsk_thread_flag(idle, TIF_FORK);
|
||||
#endif
|
||||
xen_setup_timer(cpu);
|
||||
|
||||
per_cpu(cpu_state, cpu) = CPU_UP_PREPARE;
|
||||
|
||||
/* make sure interrupts start blocked */
|
||||
per_cpu(xen_vcpu, cpu)->evtchn_upcall_mask = 1;
|
||||
|
||||
|
|
@ -306,16 +315,14 @@ static int __cpuinit xen_cpu_up(unsigned int cpu)
|
|||
if (rc)
|
||||
return rc;
|
||||
|
||||
smp_store_cpu_info(cpu);
|
||||
set_cpu_sibling_map(cpu);
|
||||
/* This must be done before setting cpu_online_map */
|
||||
wmb();
|
||||
|
||||
cpu_set(cpu, cpu_online_map);
|
||||
|
||||
rc = HYPERVISOR_vcpu_op(VCPUOP_up, cpu, NULL);
|
||||
BUG_ON(rc);
|
||||
|
||||
while(per_cpu(cpu_state, cpu) != CPU_ONLINE) {
|
||||
HYPERVISOR_sched_op(SCHEDOP_yield, 0);
|
||||
barrier();
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
|
@ -379,7 +386,11 @@ static irqreturn_t xen_call_function_interrupt(int irq, void *dev_id)
|
|||
{
|
||||
irq_enter();
|
||||
generic_smp_call_function_interrupt();
|
||||
#ifdef CONFIG_X86_32
|
||||
__get_cpu_var(irq_stat).irq_call_count++;
|
||||
#else
|
||||
add_pda(irq_call_count, 1);
|
||||
#endif
|
||||
irq_exit();
|
||||
|
||||
return IRQ_HANDLED;
|
||||
|
|
@ -389,7 +400,11 @@ static irqreturn_t xen_call_function_single_interrupt(int irq, void *dev_id)
|
|||
{
|
||||
irq_enter();
|
||||
generic_smp_call_function_single_interrupt();
|
||||
#ifdef CONFIG_X86_32
|
||||
__get_cpu_var(irq_stat).irq_call_count++;
|
||||
#else
|
||||
add_pda(irq_call_count, 1);
|
||||
#endif
|
||||
irq_exit();
|
||||
|
||||
return IRQ_HANDLED;
|
||||
|
|
@ -411,4 +426,5 @@ static const struct smp_ops xen_smp_ops __initdata = {
|
|||
void __init xen_smp_init(void)
|
||||
{
|
||||
smp_ops = xen_smp_ops;
|
||||
xen_fill_possible_map();
|
||||
}
|
||||
|
|
|
|||
|
|
@ -44,8 +44,6 @@ bool xen_vcpu_stolen(int vcpu);
|
|||
|
||||
void xen_mark_init_mm_pinned(void);
|
||||
|
||||
void __init xen_fill_possible_map(void);
|
||||
|
||||
void __init xen_setup_vcpu_info_placement(void);
|
||||
|
||||
#ifdef CONFIG_SMP
|
||||
|
|
|
|||
Загрузка…
Ссылка в новой задаче