x86/amd-iommu: Remove bus_addr check in iommu_map_page (bad1cac2) · Commits · 戴 / test

arch/x86/kernel/amd_iommu.c

+1 −2

Original line number	Original line	Diff line number	Diff line
	@@ -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);