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iommu/vt-d: Make identity_domain_set_dev_pasid() to handle domain replacement

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Let identity_domain_set_dev_pasid() call the pasid replace helpers hence
be able to do domain replacement.

Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Yi Liu <yi.l.liu@intel.com>
Link: https://lore.kernel.org/r/20241107122234.7424-11-yi.l.liu@intel.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Yi Liu 2024-11-08 10:14:01 +08:00 committed by Joerg Roedel
parent cfb31f194a
commit 9bc18d283d
1 changed files with 18 additions and 1 deletions
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19
drivers/iommu/intel/iommu.c
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@ -1778,6 +1778,17 @@ static int domain_setup_second_level(struct intel_iommu *iommu,
pasid);
}
static int domain_setup_passthrough(struct intel_iommu *iommu,
struct device *dev, ioasid_t pasid,
struct iommu_domain *old)
{
if (!old)
return intel_pasid_setup_pass_through(iommu, dev, pasid);
return intel_pasid_replace_pass_through(iommu, dev,
iommu_domain_did(old, iommu),
pasid);
}
static int domain_setup_first_level(struct intel_iommu *iommu,
struct dmar_domain *domain,
struct device *dev,
@ -4423,11 +4434,17 @@ static int identity_domain_set_dev_pasid(struct iommu_domain *domain,
{
struct device_domain_info *info = dev_iommu_priv_get(dev);
struct intel_iommu *iommu = info->iommu;
int ret;
if (!pasid_supported(iommu) || dev_is_real_dma_subdevice(dev))
return -EOPNOTSUPP;
return intel_pasid_setup_pass_through(iommu, dev, pasid);
ret = domain_setup_passthrough(iommu, dev, pasid, old);
if (ret)
return ret;
domain_remove_dev_pasid(old, dev, pasid);
return 0;
}
static struct iommu_domain identity_domain = {