static int __init
acpi_parse_lapic(struct acpi_subtable_header * header, const unsigned long end)
{
struct acpi_madt_local_apic *processor =
container_of(header, struct acpi_madt_local_apic, header);
bool_t enabled = 0;
if (BAD_MADT_ENTRY(processor, end))
return -EINVAL;
acpi_table_print_madt_entry(header);
/* Record local apic id only when enabled */
if (processor->lapic_flags & ACPI_MADT_ENABLED) {
x86_acpiid_to_apicid[processor->processor_id] = processor->id;
enabled = 1;
}
/*
* We need to register disabled CPU as well to permit
* counting disabled CPUs. This allows us to size
* cpus_possible_map more accurately, to permit
* to not preallocating memory for all NR_CPUS
* when we use CPU hotplug.
*/
mp_register_lapic(processor->id, enabled, 0);
return 0;
}
static int __init
acpi_parse_lapic(struct acpi_subtable_header * header, const unsigned long end)
{
struct acpi_table_lapic *processor = NULL;
processor = (struct acpi_table_lapic *)header;
if (BAD_MADT_ENTRY(processor, end))
return -EINVAL;
acpi_table_print_madt_entry(header);
/* Record local apic id only when enabled */
if (processor->flags.enabled)
x86_acpiid_to_apicid[processor->acpi_id] = processor->id;
/*
* We need to register disabled CPU as well to permit
* counting disabled CPUs. This allows us to size
* cpus_possible_map more accurately, to permit
* to not preallocating memory for all NR_CPUS
* when we use CPU hotplug.
*/
mp_register_lapic(processor->id, /* APIC ID */
processor->flags.enabled); /* Enabled? */
return 0;
}
static int __init
acpi_parse_lapic (
acpi_table_entry_header *header)
{
struct acpi_table_lapic *processor = NULL;
processor = (struct acpi_table_lapic*) header;
if (!processor)
return -EINVAL;
acpi_table_print_madt_entry(header);
mp_register_lapic (
processor->id, /* APIC ID */
processor->flags.enabled); /* Enabled? */
return 0;
}
static int __init
acpi_parse_x2apic(struct acpi_subtable_header *header, const unsigned long end)
{
struct acpi_madt_local_x2apic *processor =
container_of(header, struct acpi_madt_local_x2apic, header);
bool_t enabled = 0;
if (BAD_MADT_ENTRY(processor, end))
return -EINVAL;
acpi_table_print_madt_entry(header);
/* Record local apic id only when enabled and fitting. */
if (processor->local_apic_id >= MAX_APICS ||
processor->uid >= MAX_MADT_ENTRIES) {
printk("%sAPIC ID %#x and/or ACPI ID %#x beyond limit"
" - processor ignored\n",
processor->lapic_flags & ACPI_MADT_ENABLED ?
KERN_WARNING "WARNING: " : KERN_INFO,
processor->local_apic_id, processor->uid);
/*
* Must not return an error here, to prevent
* acpi_table_parse_entries() from terminating early.
*/
return 0 /* -ENOSPC */;
}
if (processor->lapic_flags & ACPI_MADT_ENABLED) {
x86_acpiid_to_apicid[processor->uid] =
processor->local_apic_id;
enabled = 1;
}
/*
* We need to register disabled CPU as well to permit
* counting disabled CPUs. This allows us to size
* cpus_possible_map more accurately, to permit
* to not preallocating memory for all NR_CPUS
* when we use CPU hotplug.
*/
mp_register_lapic(processor->local_apic_id, enabled, 0);
return 0;
}
