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

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This will be used later to match broken RMRR entries.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Joerg Roedel 2014-10-02 11:50:25 +02:00
parent 1196c2fb04
commit 57384592c4
2 changed files with 8 additions and 1 deletions
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1
drivers/iommu/dmar.c
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@ -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))

8
include/linux/dmar.h
View File

@ -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;