diff options
Diffstat (limited to 'arch/i386/kernel/acpi/boot.c')
| -rw-r--r-- | arch/i386/kernel/acpi/boot.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/arch/i386/kernel/acpi/boot.c b/arch/i386/kernel/acpi/boot.c index 033066176b3e..049a25583793 100644 --- a/arch/i386/kernel/acpi/boot.c +++ b/arch/i386/kernel/acpi/boot.c @@ -215,7 +215,7 @@ static int __init acpi_parse_madt(unsigned long phys_addr, unsigned long size) { struct acpi_table_madt *madt = NULL; - if (!phys_addr || !size) + if (!phys_addr || !size || !cpu_has_apic) return -EINVAL; madt = (struct acpi_table_madt *)__acpi_map_table(phys_addr, size); @@ -693,6 +693,9 @@ static int __init acpi_parse_madt_lapic_entries(void) { int count; + if (!cpu_has_apic) + return -ENODEV; + /* * Note that the LAPIC address is obtained from the MADT (32-bit value) * and (optionally) overriden by a LAPIC_ADDR_OVR entry (64-bit value). @@ -751,6 +754,9 @@ static int __init acpi_parse_madt_ioapic_entries(void) return -ENODEV; } + if (!cpu_has_apic) + return -ENODEV; + /* * if "noapic" boot option, don't look for IO-APICs */ @@ -1096,6 +1102,9 @@ int __init acpi_boot_table_init(void) dmi_check_system(acpi_dmi_table); #endif + if (!cpu_has_apic) + return -ENODEV; + /* * If acpi_disabled, bail out * One exception: acpi=ht continues far enough to enumerate LAPICs |