diff options
Diffstat (limited to 'arch/x86/kernel/apic/apic.c')
| -rw-r--r-- | arch/x86/kernel/apic/apic.c | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c index de039fcdd05..3fc3a6c428d 100644 --- a/arch/x86/kernel/apic/apic.c +++ b/arch/x86/kernel/apic/apic.c @@ -1365,14 +1365,6 @@ void enable_x2apic(void) int __init enable_IR(void) { #ifdef CONFIG_INTR_REMAP - int ret; - - ret = dmar_table_init(); - if (ret) { - pr_debug("dmar_table_init() failed with %d:\n", ret); - return 0; - } - if (!intr_remapping_supported()) { pr_debug("intr-remapping not supported\n"); return 0; @@ -1400,6 +1392,14 @@ void __init enable_IR_x2apic(void) unsigned long flags; struct IO_APIC_route_entry **ioapic_entries = NULL; int ret, x2apic_enabled = 0; + int dmar_table_init_ret = 0; + +#ifdef CONFIG_INTR_REMAP + dmar_table_init_ret = dmar_table_init(); + if (dmar_table_init_ret) + pr_debug("dmar_table_init() failed with %d:\n", + dmar_table_init_ret); +#endif ioapic_entries = alloc_ioapic_entries(); if (!ioapic_entries) { @@ -1417,7 +1417,11 @@ void __init enable_IR_x2apic(void) mask_8259A(); mask_IO_APIC_setup(ioapic_entries); - ret = enable_IR(); + if (dmar_table_init_ret) + ret = 0; + else + ret = enable_IR(); + if (!ret) { /* IR is required if there is APIC ID > 255 even when running * under KVM |