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Commit 3b5410e7 authored by Weidong Han's avatar Weidong Han Committed by Joerg Roedel
Browse files

change P2P domain flags 



Signed-off-by: default avatarWeidong Han <weidong.han@intel.com>
Signed-off-by: default avatarJoerg Roedel <joerg.roedel@amd.com>
parent d71a2f33

drivers/pci/intel-iommu.c

+5 −3
Original line number Diff line number Diff line
@@ -200,6 +200,9 @@ static inline bool dma_pte_present(struct dma_pte *pte) 
	return (pte->val & 3) != 0;

}



/* devices under the same p2p bridge are owned in one domain */

#define DOMAIN_FLAG_P2P_MULTIPLE_DEVICES (1 < 0)



struct dmar_domain {

	int	id;			/* domain id */

	struct intel_iommu *iommu;	/* back pointer to owning iommu */
@@ -214,8 +217,7 @@ struct dmar_domain { 
	/* adjusted guest address width, 0 is level 2 30-bit */

	int		agaw;



#define DOMAIN_FLAG_MULTIPLE_DEVICES 1

	int		flags;

	int		flags;		/* flags to find out type of domain */

};



/* PCI domain-device relationship */
@@ -1574,7 +1576,7 @@ static struct dmar_domain *get_domain_for_dev(struct pci_dev *pdev, int gaw) 
		info->dev = NULL;

		info->domain = domain;

		/* This domain is shared by devices under p2p bridge */

		domain->flags |= DOMAIN_FLAG_MULTIPLE_DEVICES;

		domain->flags |= DOMAIN_FLAG_P2P_MULTIPLE_DEVICES;



		/* pcie-to-pci bridge already has a domain, uses it */

		found = NULL;