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    Subject[PATCH 5/9] VT-d: add domain init and destroy functions for IOMMU API
    Date
    Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
    ---
    drivers/pci/intel-iommu.c | 24 ++++++++++++++++++++++++
    1 files changed, 24 insertions(+), 0 deletions(-)

    diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c
    index 5c8baa4..b958b6f 100644
    --- a/drivers/pci/intel-iommu.c
    +++ b/drivers/pci/intel-iommu.c
    @@ -35,6 +35,7 @@
    #include <linux/mempool.h>
    #include <linux/timer.h>
    #include <linux/iova.h>
    +#include <linux/iommu.h>
    #include <linux/intel-iommu.h>
    #include <asm/cacheflush.h>
    #include <asm/iommu.h>
    @@ -2436,3 +2437,26 @@ u64 intel_iommu_iova_to_pfn(struct dmar_domain *domain, u64 iova)
    return pfn >> VTD_PAGE_SHIFT;
    }
    EXPORT_SYMBOL_GPL(intel_iommu_iova_to_pfn);
    +
    +static int intel_iommu_domain_init(struct iommu_domain *domain,
    + struct device *dev)
    +{
    + struct dmar_domain *dmar_domain;
    + struct pci_dev *pdev = to_pci_dev(dev);
    +
    + if (!pdev)
    + return -EINVAL;
    +
    + dmar_domain = intel_iommu_domain_alloc(pdev);
    + domain->priv = dmar_domain;
    +
    + return 0;
    +}
    +
    +static void intel_iommu_domain_destroy(struct iommu_domain *domain)
    +{
    + struct dmar_domain *dmar_domain = domain->priv;
    +
    + intel_iommu_domain_exit(dmar_domain);
    + domain->priv = NULL;
    +}
    --
    1.5.6.4



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