diff options
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/intel_irq_remapping.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/iommu/intel_irq_remapping.c b/drivers/iommu/intel_irq_remapping.c index 137663bd5da2..9d67c12c2ffb 100644 --- a/drivers/iommu/intel_irq_remapping.c +++ b/drivers/iommu/intel_irq_remapping.c @@ -32,8 +32,9 @@ struct hpet_scope { }; #define IR_X2APIC_MODE(mode) (mode ? (1 << 11) : 0) -#define IRTE_DEST(dest) ((x2apic_mode) ? dest : dest << 8) +#define IRTE_DEST(dest) ((eim_mode) ? dest : dest << 8) +static int __read_mostly eim_mode; static struct ioapic_scope ir_ioapic[MAX_IO_APICS]; static struct hpet_scope ir_hpet[MAX_HPET_TBS]; @@ -644,8 +645,6 @@ static int __init intel_enable_irq_remapping(void) int eim = 0; if (x2apic_supported()) { - pr_info("Queued invalidation will be enabled to support x2apic and Intr-remapping.\n"); - eim = !dmar_x2apic_optout(); if (!eim) printk(KERN_WARNING @@ -683,8 +682,11 @@ static int __init intel_enable_irq_remapping(void) if (eim && !ecap_eim_support(iommu->ecap)) { printk(KERN_INFO "DRHD %Lx: EIM not supported by DRHD, " " ecap %Lx\n", drhd->reg_base_addr, iommu->ecap); - goto error; + eim = 0; } + eim_mode = eim; + if (eim) + pr_info("Queued invalidation will be enabled to support x2apic and Intr-remapping.\n"); /* * Enable queued invalidation for all the DRHD's. |