From: Tiejun Chen <tiejun.chen@intel.com>
Date: Tue, 28 Oct 2014 10:55:04 +0000 (+0100)
Subject: vtd: correct some comments
X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~4120
X-Git-Url: https://dgit.raspbian.org/%22http://www.example.com/cgi/success//%22http:/www.example.com/cgi/success/?a=commitdiff_plain;h=0f2bde078ace619fe8e26730495b6ef2c3a2e9bf;p=xen.git

vtd: correct some comments

In some cases Dom0 and hardware domain are not one same domain.

Signed-off-by: Tiejun Chen <tiejun.chen@intel.com>
---

diff --git a/xen/drivers/passthrough/vtd/iommu.c b/xen/drivers/passthrough/vtd/iommu.c
index 1c5298133e..19d8165a87 100644
--- a/xen/drivers/passthrough/vtd/iommu.c
+++ b/xen/drivers/passthrough/vtd/iommu.c
@@ -1248,7 +1248,7 @@ static void __hwdom_init intel_iommu_hwdom_init(struct domain *d)
 
     if ( !iommu_passthrough && !need_iommu(d) )
     {
-        /* Set up 1:1 page table for dom0 */
+        /* Set up 1:1 page table for hardware domain. */
         vtd_set_hwdom_mapping(d);
     }
 
@@ -1696,7 +1696,7 @@ static int intel_iommu_map_page(
     if ( iommu_use_hap_pt(d) )
         return 0;
 
-    /* do nothing if dom0 and iommu supports pass thru */
+    /* Do nothing if hardware domain and iommu supports pass thru. */
     if ( iommu_passthrough && is_hardware_domain(d) )
         return 0;
 
@@ -1740,7 +1740,7 @@ static int intel_iommu_map_page(
 
 static int intel_iommu_unmap_page(struct domain *d, unsigned long gfn)
 {
-    /* Do nothing if dom0 and iommu supports pass thru. */
+    /* Do nothing if hardware domain and iommu supports pass thru. */
     if ( iommu_passthrough && is_hardware_domain(d) )
         return 0;