diff options
Diffstat (limited to 'drivers/hv/mshv_root.h')
| -rw-r--r-- | drivers/hv/mshv_root.h | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/drivers/hv/mshv_root.h b/drivers/hv/mshv_root.h index 4249534ba900..3c1d88b36741 100644 --- a/drivers/hv/mshv_root.h +++ b/drivers/hv/mshv_root.h @@ -15,6 +15,7 @@ #include <linux/hashtable.h> #include <linux/dev_printk.h> #include <linux/build_bug.h> +#include <linux/mmu_notifier.h> #include <uapi/linux/mshv.h> /* @@ -70,6 +71,12 @@ do { \ #define vp_info(v, fmt, ...) vp_devprintk(info, v, fmt, ##__VA_ARGS__) #define vp_dbg(v, fmt, ...) vp_devprintk(dbg, v, fmt, ##__VA_ARGS__) +enum mshv_region_type { + MSHV_REGION_TYPE_MEM_PINNED, + MSHV_REGION_TYPE_MEM_MOVABLE, + MSHV_REGION_TYPE_MMIO +}; + struct mshv_mem_region { struct hlist_node hnode; struct kref refcount; @@ -77,11 +84,10 @@ struct mshv_mem_region { u64 start_gfn; u64 start_uaddr; u32 hv_map_flags; - struct { - u64 range_pinned: 1; - u64 reserved: 63; - } flags; struct mshv_partition *partition; + enum mshv_region_type type; + struct mmu_interval_notifier mni; + struct mutex mutex; /* protects region pages remapping */ struct page *pages[]; }; @@ -315,8 +321,7 @@ extern enum hv_scheduler_type hv_scheduler_type; extern u8 * __percpu *hv_synic_eventring_tail; struct mshv_mem_region *mshv_region_create(u64 guest_pfn, u64 nr_pages, - u64 uaddr, u32 flags, - bool is_mmio); + u64 uaddr, u32 flags); int mshv_region_share(struct mshv_mem_region *region); int mshv_region_unshare(struct mshv_mem_region *region); int mshv_region_map(struct mshv_mem_region *region); @@ -324,5 +329,8 @@ void mshv_region_invalidate(struct mshv_mem_region *region); int mshv_region_pin(struct mshv_mem_region *region); void mshv_region_put(struct mshv_mem_region *region); int mshv_region_get(struct mshv_mem_region *region); +bool mshv_region_handle_gfn_fault(struct mshv_mem_region *region, u64 gfn); +void mshv_region_movable_fini(struct mshv_mem_region *region); +bool mshv_region_movable_init(struct mshv_mem_region *region); #endif /* _MSHV_ROOT_H_ */ |