struct guest_info;
struct v3_vm_info;
+#ifdef V3_CONFIG_SWAPPING
+#include <palacios/vmm_swapping.h>
+#endif
+
+
-// These are the types of physical memory address regions
-// from the perspective of the HOST
-typedef enum shdw_region_type {
- 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
-} v3_shdw_region_type_t;
+#define V3_MEM_CORE_ANY ((uint16_t)-1)
+typedef struct {
+ union {
+ uint16_t value;
+ struct {
+ // These reflect the VMM's intent for the shadow or nested pts
+ // that will implement the region. The guest's intent is in
+ // its own page tables.
+ uint8_t read : 1;
+ uint8_t write : 1;
+ uint8_t exec : 1;
+ uint8_t base : 1;
+ uint8_t alloced : 1;
+ uint8_t limit32 : 1; // must be < 4GB in host
+#ifdef V3_CONFIG_SWAPPING
+ uint8_t swapped : 1;
+ uint8_t pinned : 1;
+#endif
+ } __attribute__((packed));
+ } __attribute__((packed));
+} __attribute__((packed)) v3_mem_flags_t;
-struct v3_shadow_region {
+
+
+struct v3_mem_region {
addr_t guest_start;
addr_t guest_end;
- v3_shdw_region_type_t host_type;
-
+ v3_mem_flags_t flags;
+
addr_t host_addr; // This either points to a host address mapping
- // 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);
+ 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;
- int core_id;
+ int core_id; // The virtual core this region is assigned to (-1 means all cores)
+ int numa_id; // The NUMA node this region is allocated from
+
+#ifdef V3_CONFIG_SWAPPING
+ struct v3_swap_region_state swap_state;
+#endif
struct rb_node tree_node; // This for memory regions mapped to the global map
};
struct v3_mem_map {
- struct v3_shadow_region base_region;
-
- struct rb_root shdw_regions;
-
- void * hook_hvas; // this is an array of pages, equal to the number of cores
-};
-
-int v3_init_mem_map(struct guest_info * info);
-void v3_delete_mem_map(struct guest_info * info);
-
-
-
-
-int v3_add_shadow_mem(struct v3_vm_info * vm,
- addr_t guest_addr_start,
- addr_t guest_addr_end,
- addr_t host_addr);
+ struct rb_root mem_regions;
+
+ uint32_t num_base_regions;
+ struct v3_mem_region * base_regions;
+};
-int v3_hook_full_mem(struct v3_vm_info * vm, 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 v3_vm_info * vm, 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 v3_init_mem_map(struct v3_vm_info * vm);
+void v3_delete_mem_map(struct v3_vm_info * vm);
-int v3_unhook_mem(struct v3_vm_info * vm, addr_t guest_addr_start);
+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);
+int v3_insert_mem_region(struct v3_vm_info * vm, struct v3_mem_region * reg);
-void v3_delete_shadow_region(struct v3_vm_info * vm, struct v3_shadow_region * reg);
+void v3_delete_mem_region(struct v3_vm_info * vm, struct v3_mem_region * reg);
+/* 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);
-struct v3_shadow_region * v3_get_shadow_region(struct v3_vm_info * vm, addr_t guest_addr /*, int core_id */);
-addr_t v3_get_shadow_addr(struct v3_shadow_region * reg, 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_base_region(struct v3_vm_info * vm, addr_t gpa);
+uint32_t v3_get_max_page_size(struct guest_info * core, addr_t fault_addr, v3_cpu_mode_t mode);
void v3_print_mem_map(struct v3_vm_info * vm);
+void v3_init_mem();
+void v3_deinit_mem();
-
-const uchar_t * v3_shdw_region_type_to_str(v3_shdw_region_type_t type);
-
-
-
-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 v3_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 v3_shadow_region * reg, pf_error_t access_info);
-
-#endif // ! __V3VEE__
+#endif /* ! __V3VEE__ */
#endif
