From: Keir Fraser <keir.fraser@citrix.com>
Date: Thu, 3 Apr 2008 10:24:20 +0000 (+0100)
Subject: VT-d: Enable queued invalidation on all vt-d engines before enabling
X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~14231^2~84
X-Git-Url: https://dgit.raspbian.org/%22http://www.example.com/cgi/%22/%22http:/www.example.com/cgi/%22?a=commitdiff_plain;h=a0c04c2c3d1c640098f572f42d03d46e24012c23;p=xen.git

VT-d: Enable queued invalidation on all vt-d engines before enabling
interrupt remapping.

Signed-off-by: Allen Kay <allen.m.kay@intel.com>
---

diff --git a/xen/drivers/passthrough/vtd/iommu.c b/xen/drivers/passthrough/vtd/iommu.c
index 968e25d7f5..41fc90d6ec 100644
--- a/xen/drivers/passthrough/vtd/iommu.c
+++ b/xen/drivers/passthrough/vtd/iommu.c
@@ -1897,7 +1897,11 @@ static int init_vtd2_hw(void)
         if ( qinval_setup(iommu) != 0 )
             dprintk(XENLOG_ERR VTDPREFIX,
                     "Queued Invalidation hardware not found\n");
+    }
 
+    for_each_drhd_unit ( drhd )
+    {
+        iommu = drhd->iommu;
         if ( intremap_setup(iommu) != 0 )
             dprintk(XENLOG_ERR VTDPREFIX,
                     "Interrupt Remapping hardware not found\n");