From 91419e49cc415b2f8ddf3d2ffccc34de8947fbbc Mon Sep 17 00:00:00 2001 From: Santosh Jodh Date: Fri, 3 Aug 2012 10:38:04 +0100 Subject: [PATCH] Intel VT-d: Dump IOMMU supported page sizes Signed-off-by: Santosh Jodh --- xen/drivers/passthrough/vtd/iommu.c | 9 +++++++++ 1 file changed, 9 insertions(+) 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; -- 2.30.2