#include <palacios/vmm_types.h>
#include <palacios/vmm_paging.h>
+#include <palacios/vmm_rbtree.h>
+#include <palacios/vmm_list.h>
struct guest_info;
+struct v3_vm_info;
-// These are the types of physical memory address regions
-// from the perspective of the HOST
-typedef enum shdw_region_type {
- SHDW_REGION_INVALID, // This region is INVALID (this is a return type to denote errors)
- SHDW_REGION_WRITE_HOOK, // This region is mapped as read-only (page faults on write)
- SHDW_REGION_FULL_HOOK, // This region is mapped as not present (always generate page faults)
- SHDW_REGION_ALLOCATED, // Region is a section of host memory
- SHDW_REGION_UNALLOCATED, // Region is mapped on demand
-} shdw_region_type_t;
+#define V3_MEM_CORE_ANY ((uint16_t)-1)
-struct vmm_mem_hook;
+typedef struct {
+ union {
+ uint16_t value;
+ struct {
+ uint8_t read : 1;
+ uint8_t write : 1;
+ uint8_t exec : 1;
+ uint8_t base : 1;
+ uint8_t alloced : 1;
+ } __attribute__((packed));
+ } __attribute__((packed));
+} __attribute__((packed)) v3_mem_flags_t;
-struct shadow_region {
- addr_t guest_start;
- addr_t guest_end;
- shdw_region_type_t host_type;
-
- addr_t host_addr; // This either points to a host address mapping
+struct v3_mem_region {
+ addr_t guest_start;
+ addr_t guest_end;
- // Called when data is read from a memory page
- int (*read_hook)(addr_t guest_addr, void * dst, uint_t length, void * priv_data);
- // Called when data is written to a memory page
- int (*write_hook)(addr_t guest_addr, void * src, uint_t length, void * priv_data);
+ v3_mem_flags_t flags;
- void * priv_data;
-
- struct shadow_region *next, *prev;
-};
+ addr_t host_addr; // This either points to a host address mapping
+ int (*unhandled)(struct guest_info * info, addr_t guest_va, addr_t guest_pa,
+ struct v3_mem_region * reg, pf_error_t access_info);
+ void * priv_data;
-struct shadow_map {
- uint_t num_regions;
+ int core_id;
- struct shadow_region * head;
+ struct rb_node tree_node; // This for memory regions mapped to the global map
};
+struct v3_mem_map {
+ struct v3_mem_region base_region;
-void init_shadow_region(struct shadow_region * entry,
- addr_t guest_addr_start,
- addr_t guest_addr_end,
- shdw_region_type_t shdw_region_type);
-
-
-int add_shadow_region_passthrough(struct guest_info * guest_info,
- addr_t guest_addr_start,
- addr_t guest_addr_end,
- addr_t host_addr);
-
-void init_shadow_map(struct guest_info * info);
-void free_shadow_map(struct shadow_map * map);
+ struct rb_root mem_regions;
+};
-struct shadow_region * get_shadow_region_by_addr(struct shadow_map * map, addr_t guest_addr);
-struct shadow_region * get_shadow_region_by_index(struct shadow_map * map, uint_t index);
+int v3_init_mem_map(struct v3_vm_info * vm);
+void v3_delete_mem_map(struct v3_vm_info * vm);
-shdw_region_type_t lookup_shadow_map_addr(struct shadow_map * map, addr_t guest_addr, addr_t * host_addr);
-shdw_region_type_t get_shadow_addr_type(struct guest_info * info, addr_t guest_addr);
-addr_t get_shadow_addr(struct guest_info * info, addr_t guest_addr);
-// Semantics:
-// Adding a region that overlaps with an existing region results is undefined
-// and will probably fail
-int add_shadow_region(struct shadow_map * map, struct shadow_region * entry);
-// Semantics:
-// Deletions result in splitting
-int delete_shadow_region(struct shadow_map * map,
- addr_t guest_start,
- addr_t guest_end);
+struct v3_mem_region * v3_create_mem_region(struct v3_vm_info * vm, uint16_t core_id,
+ addr_t guest_addr_start, addr_t guest_addr_end);
-void print_shadow_map(struct shadow_map * map);
+int v3_insert_mem_region(struct v3_vm_info * vm, struct v3_mem_region * reg);
+void v3_delete_mem_region(struct v3_vm_info * vm, struct v3_mem_region * reg);
-struct shadow_region * v3_get_shadow_region(struct guest_info * info, addr_t addr);
+/* This is a shortcut function for creating + inserting a memory region which redirects to host memory */
+int v3_add_shadow_mem(struct v3_vm_info * vm, uint16_t core_id,
+ addr_t guest_addr_start, addr_t guest_addr_end, addr_t host_addr);
-int v3_hook_full_mem(struct guest_info * info, addr_t guest_addr_start, addr_t guest_addr_end,
- int (*read)(addr_t guest_addr, void * dst, uint_t length, void * priv_data),
- int (*write)(addr_t guest_addr, void * src, uint_t length, void * priv_data),
- void * priv_data);
-int v3_hook_write_mem(struct guest_info * info, addr_t guest_addr_start, addr_t guest_addr_end,
- addr_t host_addr,
- int (*write)(addr_t guest_addr, void * src, uint_t length, void * priv_data),
- void * priv_data);
-int unhook_guest_mem(struct guest_info * info, addr_t guest_addr);
+struct v3_mem_region * v3_get_mem_region(struct v3_vm_info * vm, uint16_t core_id, addr_t guest_addr);
+struct v3_mem_region * v3_get_next_mem_region(struct v3_vm_info * vm, uint16_t core_id, addr_t guest_addr);
-const uchar_t * shdw_region_type_to_str(shdw_region_type_t type);
+void v3_print_mem_map(struct v3_vm_info * vm);
+uint32_t v3_get_max_page_size(struct guest_info * core, addr_t fault_addr, uint32_t req_size);
-int handle_special_page_fault(struct guest_info * info, addr_t fault_addr, addr_t gp_addr, pf_error_t access_info);
-int v3_handle_mem_wr_hook(struct guest_info * info, addr_t guest_va, addr_t guest_pa,
- struct shadow_region * reg, pf_error_t access_info);
-int v3_handle_mem_full_hook(struct guest_info * info, addr_t guest_va, addr_t guest_pa,
- struct shadow_region * reg, pf_error_t access_info);
#endif // ! __V3VEE__
