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iommu: Add is_attach_deferred call-back to iommu-ops

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This new call-back will be used to check if the domain attach need be
deferred for now. If yes, the domain attach/detach will return directly.

Signed-off-by: Baoquan He <bhe@redhat.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Baoquan He
2017-08-09 16:33:40 +08:00
committed by Joerg Roedel
parent 53019a9e88
commit e01d1913b0
2 changed files with 9 additions and 0 deletions
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include/linux/iommu.h
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@@ -225,6 +225,7 @@ struct iommu_ops {
u32 (*domain_get_windows)(struct iommu_domain *domain);
int (*of_xlate)(struct device *dev, struct of_phandle_args *args);
bool (*is_attach_deferred)(struct iommu_domain *domain, struct device *dev);
unsigned long pgsize_bitmap;
};