Messages in this thread Patch in this message | | | From | Joerg Roedel <> | Subject | [PATCH 18/22] iommu/amd: Support IOMMU_DOMAIN_IDENTITY type allocation | Date | Thu, 28 May 2015 18:41:41 +0200 |
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From: Joerg Roedel <jroedel@suse.de>
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(+)
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index 06d19e8..33bbb4d 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; } -- 1.9.1
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