diff options
Diffstat (limited to 'drivers/hv/mshv_root.h')
| -rw-r--r-- | drivers/hv/mshv_root.h | 57 |
1 files changed, 41 insertions, 16 deletions
diff --git a/drivers/hv/mshv_root.h b/drivers/hv/mshv_root.h index e3931b0f1269..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> /* @@ -70,18 +71,23 @@ 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; u64 nr_pages; u64 start_gfn; u64 start_uaddr; u32 hv_map_flags; - struct { - u64 large_pages: 1; /* 2MiB */ - u64 range_pinned: 1; - u64 reserved: 62; - } 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[]; }; @@ -98,6 +104,8 @@ struct mshv_partition { u64 pt_id; refcount_t pt_ref_count; struct mutex pt_mutex; + + spinlock_t pt_mem_regions_lock; struct hlist_head pt_mem_regions; // not ordered u32 pt_vp_count; @@ -169,7 +177,7 @@ struct mshv_girq_routing_table { }; struct hv_synic_pages { - struct hv_message_page *synic_message_page; + struct hv_message_page *hyp_synic_message_page; struct hv_synic_event_flags_page *synic_event_flags_page; struct hv_synic_event_ring_page *synic_event_ring_page; }; @@ -178,6 +186,7 @@ struct mshv_root { struct hv_synic_pages __percpu *synic_pages; spinlock_t pt_ht_lock; DECLARE_HASHTABLE(pt_htable, MSHV_PARTITIONS_HASH_BITS); + struct hv_partition_property_vmm_capabilities vmm_caps; }; /* @@ -278,11 +287,12 @@ int hv_call_set_vp_state(u32 vp_index, u64 partition_id, /* Choose between pages and bytes */ struct hv_vp_state_data state_data, u64 page_count, struct page **pages, u32 num_bytes, u8 *bytes); -int hv_call_map_vp_state_page(u64 partition_id, u32 vp_index, u32 type, - union hv_input_vtl input_vtl, - struct page **state_page); -int hv_call_unmap_vp_state_page(u64 partition_id, u32 vp_index, u32 type, - union hv_input_vtl input_vtl); +int hv_map_vp_state_page(u64 partition_id, u32 vp_index, u32 type, + union hv_input_vtl input_vtl, + struct page **state_page); +int hv_unmap_vp_state_page(u64 partition_id, u32 vp_index, u32 type, + struct page *state_page, + union hv_input_vtl input_vtl); int hv_call_create_port(u64 port_partition_id, union hv_port_id port_id, u64 connection_partition_id, struct hv_port_info *port_info, u8 port_vtl, u8 min_connection_vtl, int node); @@ -295,17 +305,32 @@ int hv_call_connect_port(u64 port_partition_id, union hv_port_id port_id, int hv_call_disconnect_port(u64 connection_partition_id, union hv_connection_id connection_id); int hv_call_notify_port_ring_empty(u32 sint_index); -int hv_call_map_stat_page(enum hv_stats_object_type type, - const union hv_stats_object_identity *identity, - void **addr); -int hv_call_unmap_stat_page(enum hv_stats_object_type type, - const union hv_stats_object_identity *identity); +int hv_map_stats_page(enum hv_stats_object_type type, + const union hv_stats_object_identity *identity, + void **addr); +int hv_unmap_stats_page(enum hv_stats_object_type type, void *page_addr, + const union hv_stats_object_identity *identity); int hv_call_modify_spa_host_access(u64 partition_id, struct page **pages, u64 page_struct_count, u32 host_access, u32 flags, u8 acquire); +int hv_call_get_partition_property_ex(u64 partition_id, u64 property_code, u64 arg, + void *property_value, size_t property_value_sz); extern struct mshv_root mshv_root; 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); +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); +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_ */ |