iommu, x86: Setup Posted-Interrupts capability for Intel iommu
Set Posted-Interrupts capability for Intel iommu when Interrupt
Remapping is enabled, clear it when disabled.
Signed-off-by: Feng Wu <feng.wu@intel.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Joerg Roedel <joro@8bytes.org>
Cc: jiang.liu@linux.intel.com
Cc: iommu@lists.linux-foundation.org
Cc: dwmw2@infradead.org
Link: http://lkml.kernel.org/r/1433827237-3382-9-git-send-email-feng.wu@intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/drivers/iommu/irq_remapping.h b/drivers/iommu/irq_remapping.h
index b6ca30d..039c7af 100644
--- a/drivers/iommu/irq_remapping.h
+++ b/drivers/iommu/irq_remapping.h
@@ -34,6 +34,8 @@
extern int no_x2apic_optout;
extern int irq_remapping_enabled;
+extern int disable_irq_post;
+
struct irq_remap_ops {
/* The supported capabilities */
int capability;
@@ -69,6 +71,7 @@
#define irq_remapping_enabled 0
#define irq_remap_broken 0
+#define disable_irq_post 1
#endif /* CONFIG_IRQ_REMAP */