[PATCH] xen/vpci: do not use pci_sanitize_bar_memory for domU

[Ariadne Conill <ariadne@ariadne.space>]

From: Steven Noonan <steven@xxxxxxxxx>

This function should only be used for the hardware domain, because it
compares addresses against the host e820 map.

Signed-off-by: Steven Noonan <steven@xxxxxxxxx>
Signed-off-by: Ariadne Conill <ariadne@ariadne.space>
---
 xen/drivers/vpci/header.c | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/xen/drivers/vpci/header.c b/xen/drivers/vpci/header.c
index 852dfd8ae3..1f930b2a1f 100644
--- a/xen/drivers/vpci/header.c
+++ b/xen/drivers/vpci/header.c
@@ -394,13 +394,15 @@ static int modify_bars(const struct pci_dev *pdev, 
uint16_t cmd, bool rom_only)
             }
         }
 
-        rc = pci_sanitize_bar_memory(bar->mem);
-        if ( rc )
-        {
-            gprintk(XENLOG_WARNING,
-                    "%pp: failed to sanitize BAR#%u memory: %d\n",
-                    &pdev->sbdf, i, rc);
-            return rc;
+        if (is_hardware_domain(pdev->domain)) {
+            rc = pci_sanitize_bar_memory(mem);
+            if ( rc )
+            {
+                gprintk(XENLOG_WARNING,
+                        "%pp: failed to sanitize BAR#%u memory: %d\n",
+                        &pdev->sbdf, i, rc);
+                return rc;
+            }
         }
     }
 
-- 
2.53.0