From 07f643a35d6b50f0f091444f07db1353188e787e Mon Sep 17 00:00:00 2001 From: Joerg Roedel <jroedel@suse.de> Date: Thu, 28 May 2015 18:41:41 +0200 Subject: iommu/amd: Support IOMMU_DOMAIN_IDENTITY type allocation Add support to allocate direct mapped domains through the IOMMU-API. Signed-off-by: Joerg Roedel <jroedel@suse.de> --- drivers/iommu/amd_iommu.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers/iommu') diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index 27300aece203..188b81d56ac4 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -2996,6 +2996,13 @@ static struct iommu_domain *amd_iommu_domain_alloc(unsigned type) } pdomain = &dma_domain->domain; break; + case IOMMU_DOMAIN_IDENTITY: + pdomain = protection_domain_alloc(); + if (!pdomain) + return NULL; + + pdomain->mode = PAGE_MODE_NONE; + break; default: return NULL; } -- cgit v1.2.1