[PATCH v2 5/5] iommu: Allow default domain type to be set on the kernel command line
STALE3482d
From: joro@8bytes.org (Joerg Roedel)
Date: 2017-03-21 15:45:27
Also in:
linux-iommu
Hi Will, On Fri, Mar 10, 2017 at 08:49:36PM +0000, Will Deacon wrote:
quoted hunk ↗ jump to hunk
@@ -1014,8 +1027,8 @@ struct iommu_group *iommu_group_get_for_dev(struct device *dev) * IOMMU driver. */ if (!group->default_domain) { - group->default_domain = __iommu_domain_alloc(dev->bus, - IOMMU_DOMAIN_DMA); + group->default_domain = + __iommu_domain_alloc(dev->bus, iommu_def_domain_type);
It would be good to have a fall-back here if we are talking to an IOMMU driver that uses default domains, but does not support identity-mapped domains (yet). Exynos and Rockchip IOMMU drivers seem to fall into this category. A dev_warn() also makes sense in case allocating a identity domain fails. Joerg