From: Joerg Roedel <joerg.roedel@amd.com>
Date: Mon, 2 Jul 2012 16:38:13 +0000 (+0200)
Subject: iommu/amd: Report irq remapping through IOMMU-API
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=bdddadcb0783b965f524b6f43c475390f5f76765;p=linux-beck.git

iommu/amd: Report irq remapping through IOMMU-API

Report the availability of irq remapping through the
IOMMU-API to allow KVM device passthrough again without
additional module parameter overrides.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
---

diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 33f144f7d676..312dd4dd4791 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -3353,6 +3353,8 @@ static int amd_iommu_domain_has_cap(struct iommu_domain *domain,
 	switch (cap) {
 	case IOMMU_CAP_CACHE_COHERENCY:
 		return 1;
+	case IOMMU_CAP_INTR_REMAP:
+		return irq_remapping_enabled;
 	}
 
 	return 0;