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| author | Keir Fraser <keir.fraser@citrix.com> | 2010-05-28 08:48:50 +0100 |
|---|---|---|
| committer | Keir Fraser <keir.fraser@citrix.com> | 2010-05-28 08:48:50 +0100 |
| commit | 17d223ff4d895762b1b8b92178882665a7c42feb (patch) | |
| tree | 9019d2fb6b82056e3cd1b7d20203c6f0d19718af /xen/include/xen/iommu.h | |
| parent | 6a47fbab768d968172e19966312b30e3d1269e73 (diff) | |
| download | xen-17d223ff4d895762b1b8b92178882665a7c42feb.tar.gz xen-17d223ff4d895762b1b8b92178882665a7c42feb.tar.bz2 xen-17d223ff4d895762b1b8b92178882665a7c42feb.zip | |
iommu: Specify access permissions to iommu_map_page().
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Diffstat (limited to 'xen/include/xen/iommu.h')
| -rw-r--r-- | xen/include/xen/iommu.h | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/xen/include/xen/iommu.h b/xen/include/xen/iommu.h index 3a418bc5ba..5181ffc5be 100644 --- a/xen/include/xen/iommu.h +++ b/xen/include/xen/iommu.h @@ -68,8 +68,16 @@ int assign_device(struct domain *d, u8 bus, u8 devfn); int deassign_device(struct domain *d, u8 bus, u8 devfn); int iommu_get_device_group(struct domain *d, u8 bus, u8 devfn, XEN_GUEST_HANDLE_64(uint32) buf, int max_sdevs); -int iommu_map_page(struct domain *d, unsigned long gfn, unsigned long mfn); + +/* iommu_map_page() takes flags to direct the mapping operation. */ +#define _IOMMUF_readable 0 +#define IOMMUF_readable (1u<<_IOMMUF_readable) +#define _IOMMUF_writable 1 +#define IOMMUF_writable (1u<<_IOMMUF_writable) +int iommu_map_page(struct domain *d, unsigned long gfn, unsigned long mfn, + unsigned int flags); int iommu_unmap_page(struct domain *d, unsigned long gfn); + void iommu_domain_teardown(struct domain *d); int hvm_do_IRQ_dpci(struct domain *d, unsigned int irq); int dpci_ioport_intercept(ioreq_t *p); @@ -102,7 +110,8 @@ struct iommu_ops { int (*remove_device)(struct pci_dev *pdev); int (*assign_device)(struct domain *d, u8 bus, u8 devfn); void (*teardown)(struct domain *d); - int (*map_page)(struct domain *d, unsigned long gfn, unsigned long mfn); + int (*map_page)(struct domain *d, unsigned long gfn, unsigned long mfn, + unsigned int flags); int (*unmap_page)(struct domain *d, unsigned long gfn); int (*reassign_device)(struct domain *s, struct domain *t, u8 bus, u8 devfn); |