From c676f5876bc088ace35ece98042a3be6d8329530 Mon Sep 17 00:00:00 2001
From: Joerg Roedel <jroedel@suse.de>
Date: Fri, 12 Jun 2015 14:25:53 +0200
Subject: [PATCH] iommu/vt-d: Disable IRQ remapping in
intel_prepare_irq_remapping
Move it to this function for now, so that the copy routines
for irq remapping take no effect yet.
Tested-by: ZhenHua Li <zhen-hual@hp.com>
Tested-by: Baoquan He <bhe@redhat.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
---
drivers/iommu/intel_irq_remapping.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/iommu/intel_irq_remapping.c b/drivers/iommu/intel_irq_remapping.c
index 46d17e19a461..f1711836486f 100644
--- a/drivers/iommu/intel_irq_remapping.c
+++ b/drivers/iommu/intel_irq_remapping.c
@@ -654,6 +654,9 @@ static int __init intel_prepare_irq_remapping(void)
pr_info("%s does not support EIM\n", iommu->name);
eim = 0;
}
+
+ /* Disable IRQ remapping if it is already enabled */
+ iommu_disable_irq_remapping(iommu);
}
eim_mode = eim;
@@ -682,9 +685,6 @@ static int __init intel_enable_irq_remapping(void)
struct intel_iommu *iommu;
bool setup = false;
- for_each_iommu(iommu, drhd)
- iommu_disable_irq_remapping(iommu);
-
/*
* Setup Interrupt-remapping for all the DRHD's now.
*/
--
2.30.9