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[Xen-devel] [PATCH] amd iommu: Remove redundant checks from iommu emulation code path



# HG changeset patch
# User Wei Wang <wei.wang2@xxxxxxx>
# Date 1328609973 -3600
# Node ID cbd3c18e8ffe86bf7378303068e23b52795e5d94
# Parent  3432abcf9380d3840ca38439a304f74a37d155fc
amd iommu: Remove redundant checks from iommu emulation code path
signed-off-by: Wei Wang <wei.wang2@xxxxxxx>

diff -r 3432abcf9380 -r cbd3c18e8ffe xen/drivers/passthrough/amd/iommu_guest.c
--- a/xen/drivers/passthrough/amd/iommu_guest.c Thu Feb 02 15:47:26 2012 +0000
+++ b/xen/drivers/passthrough/amd/iommu_guest.c Tue Feb 07 11:19:33 2012 +0100
@@ -805,9 +805,6 @@ int guest_iommu_set_base(struct domain *
     p2m_type_t t;
     struct guest_iommu *iommu = domain_iommu(d);
 
-    if ( !is_hvm_domain(d) || !iommu_enabled || !iommuv2_enabled )
-        return 0;
-
     if ( !iommu )
         return -EACCES;
 
@@ -896,9 +893,6 @@ void guest_iommu_destroy(struct domain *
 {
     struct guest_iommu *iommu;
 
-    if ( !is_hvm_domain(d) || !iommu_enabled || !iommuv2_enabled )
-        return;
-
     iommu = domain_iommu(d);
     if ( !iommu )
         return;


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