x86/amd-iommu: Remove bus_addr check in iommu_map_page

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>

diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index ebc1c84..6ffb3e6 100644 (file)
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -530,8 +530,7 @@ static int iommu_map_page(struct protection_domain *dom,
        bus_addr  = PAGE_ALIGN(bus_addr);
        phys_addr = PAGE_ALIGN(phys_addr);
 
-       /* only support 512GB address spaces for now */
-       if (bus_addr > IOMMU_MAP_SIZE_L3 || !(prot & IOMMU_PROT_MASK))
+       if (!(prot & IOMMU_PROT_MASK))
                return -EINVAL;
 
        pte = alloc_pte(dom, bus_addr, NULL, GFP_KERNEL);