diff options
Diffstat (limited to 'arch/i386/kernel/acpi/boot.c')
| -rw-r--r-- | arch/i386/kernel/acpi/boot.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/i386/kernel/acpi/boot.c b/arch/i386/kernel/acpi/boot.c index 033066176b3e..030a0007a4e0 100644 --- a/arch/i386/kernel/acpi/boot.c +++ b/arch/i386/kernel/acpi/boot.c @@ -168,7 +168,7 @@ int __init acpi_parse_mcfg(unsigned long phys_addr, unsigned long size) unsigned long i; int config_size; - if (!phys_addr || !size) + if (!phys_addr || !size || !cpu_has_apic) return -EINVAL; mcfg = (struct acpi_table_mcfg *)__acpi_map_table(phys_addr, size); @@ -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 */ |