From: Santosh Jodh <santosh.jodh@citrix.com>
Date: Fri, 3 Aug 2012 09:38:04 +0000 (+0100)
Subject: Intel VT-d: Dump IOMMU supported page sizes
X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~8078
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=91419e49cc415b2f8ddf3d2ffccc34de8947fbbc;p=xen.git

Intel VT-d: Dump IOMMU supported page sizes

Signed-off-by: Santosh Jodh <santosh.jodh@citrix.com>
---

diff --git a/xen/drivers/passthrough/vtd/iommu.c b/xen/drivers/passthrough/vtd/iommu.c
index 14c05817d5..b4cd71d433 100644
--- a/xen/drivers/passthrough/vtd/iommu.c
+++ b/xen/drivers/passthrough/vtd/iommu.c
@@ -2137,6 +2137,15 @@ int __init intel_vtd_setup(void)
     {
         iommu = drhd->iommu;
 
+        printk("Intel VT-d supported page sizes: 4kB");
+        if (cap_sps_2mb(iommu->cap))
+            printk(", 2MB");
+
+        if (cap_sps_1gb(iommu->cap))
+            printk(", 1GB");
+
+        printk(".\n");
+
         if ( iommu_snoop && !ecap_snp_ctl(iommu->ecap) )
             iommu_snoop = 0;