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Commit 57384592 authored by Joerg Roedel's avatar Joerg Roedel
Browse files

iommu/vt-d: Store bus information in RMRR PCI device path 



This will be used later to match broken RMRR entries.

Signed-off-by: default avatarJoerg Roedel <jroedel@suse.de>
parent 1196c2fb

drivers/iommu/dmar.c

+1 −0
Original line number Diff line number Diff line
@@ -155,6 +155,7 @@ dmar_alloc_pci_notify_info(struct pci_dev *dev, unsigned long event) 
	if (event == BUS_NOTIFY_ADD_DEVICE) {

		for (tmp = dev; tmp; tmp = tmp->bus->self) {

			level--;

			info->path[level].bus = tmp->bus->number;

			info->path[level].device = PCI_SLOT(tmp->devfn);

			info->path[level].function = PCI_FUNC(tmp->devfn);

			if (pci_is_root_bus(tmp->bus))

include/linux/dmar.h

+7 −1
Original line number Diff line number Diff line
@@ -56,13 +56,19 @@ struct dmar_drhd_unit { 
	struct intel_iommu *iommu;

};



struct dmar_pci_path {

	u8 bus;

	u8 device;

	u8 function;

};



struct dmar_pci_notify_info {

	struct pci_dev			*dev;

	unsigned long			event;

	int				bus;

	u16				seg;

	u16				level;

	struct acpi_dmar_pci_path	path[];

	struct dmar_pci_path		path[];

}  __attribute__((packed));



extern struct rw_semaphore dmar_global_lock;