From: Keir Fraser <keir.fraser@citrix.com>
Date: Sun, 25 Nov 2007 09:23:02 +0000 (+0000)
Subject: vt-d: Fix iommu_map_page().
X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~14704
X-Git-Url: https://dgit.raspbian.org/%22http://www.example.com/cgi/%22/%22http:/www.example.com/cgi/%22?a=commitdiff_plain;h=727f3fd5fa194bb03e9e478b2fd1760f38a43546;p=xen.git

vt-d: Fix iommu_map_page().
Signed-off-by: Weidong Han <weidong.han@intel.com>
---

diff --git a/xen/arch/x86/hvm/vmx/vtd/intel-iommu.c b/xen/arch/x86/hvm/vmx/vtd/intel-iommu.c
index 4dc4563002..080092be85 100644
--- a/xen/arch/x86/hvm/vmx/vtd/intel-iommu.c
+++ b/xen/arch/x86/hvm/vmx/vtd/intel-iommu.c
@@ -1464,7 +1464,7 @@ int iommu_map_page(struct domain *d, paddr_t gfn, paddr_t mfn)
     if ( !pg )
         return -ENOMEM;
     pte = (struct dma_pte *)map_domain_page(page_to_mfn(pg));
-    pte += mfn & LEVEL_MASK;
+    pte += gfn & LEVEL_MASK;
     dma_set_pte_addr(*pte, mfn << PAGE_SHIFT_4K);
     dma_set_pte_prot(*pte, DMA_PTE_READ | DMA_PTE_WRITE);
     iommu_flush_cache_entry(iommu, pte);