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Subject[PATCH 10/14] x86/amd-iommu: Remove bus_addr check in iommu_map_page
Date
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>
---
arch/x86/kernel/amd_iommu.c | 3 +--
1 files changed, 1 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index ebc1c84..6ffb3e6 100644
--- 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);
--
1.6.3.3



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