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x86/amd-iommu: Remove bus_addr check in iommu_map_page

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The driver now supports full 64 bit device address spaces.
So this check is not longer required.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
This commit is contained in:
Joerg Roedel
2009-09-02 16:52:23 +02:00
parent 8c8c143cdc
commit bad1cac28a
1 changed files with 1 additions and 2 deletions
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3
arch/x86/kernel/amd_iommu.c
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@@ -530,8 +530,7 @@ static int iommu_map_page(struct protection_domain *dom,
bus_addr = PAGE_ALIGN(bus_addr); bus_addr = PAGE_ALIGN(bus_addr);
phys_addr = PAGE_ALIGN(phys_addr); phys_addr = PAGE_ALIGN(phys_addr);
/* only support 512GB address spaces for now */ if (!(prot & IOMMU_PROT_MASK))
if (bus_addr > IOMMU_MAP_SIZE_L3 || !(prot & IOMMU_PROT_MASK))
return -EINVAL; return -EINVAL;
pte = alloc_pte(dom, bus_addr, NULL, GFP_KERNEL); pte = alloc_pte(dom, bus_addr, NULL, GFP_KERNEL);