Merge remote-tracking branch 'remotes/ericb/tags/pull-nbd-2019-03-08' into staging

[mirror_qemu.git] / include / sysemu / memory_mapping.h

diff --git a/include/sysemu/memory_mapping.h b/include/sysemu/memory_mapping.h
index 12561259635d39a35d24cc2a70d911a981647c39..58452457ce0583fa007b74f819f50fc3ffd2b3ac 100644 (file)
--- a/include/sysemu/memory_mapping.h
+++ b/include/sysemu/memory_mapping.h
@@ -15,6 +15,29 @@
 #define MEMORY_MAPPING_H
 
 #include "qemu/queue.h"
+#include "exec/memory.h"
+
+typedef struct GuestPhysBlock {
+    /* visible to guest, reflects PCI hole, etc */
+    hwaddr target_start;
+
+    /* implies size */
+    hwaddr target_end;
+
+    /* points into host memory */
+    uint8_t *host_addr;
+
+    /* points to the MemoryRegion that this block belongs to */
+    MemoryRegion *mr;
+
+    QTAILQ_ENTRY(GuestPhysBlock) next;
+} GuestPhysBlock;
+
+/* point-in-time snapshot of guest-visible physical mappings */
+typedef struct GuestPhysBlockList {
+    unsigned num;
+    QTAILQ_HEAD(, GuestPhysBlock) head;
+} GuestPhysBlockList;
 
 /* The physical and virtual address in the memory mapping are contiguous. */
 typedef struct MemoryMapping {
@@ -24,14 +47,11 @@ typedef struct MemoryMapping {
     QTAILQ_ENTRY(MemoryMapping) next;
 } MemoryMapping;
 
-typedef struct MemoryMappingList {
+struct MemoryMappingList {
     unsigned int num;
     MemoryMapping *last_mapping;
     QTAILQ_HEAD(, MemoryMapping) head;
-} MemoryMappingList;
-
-int cpu_get_memory_mapping(MemoryMappingList *list, CPUArchState *env);
-bool cpu_paging_enabled(CPUArchState *env);
+};
 
 /*
  * add or merge the memory region [phys_addr, phys_addr + length) into the
@@ -47,16 +67,17 @@ void memory_mapping_list_free(MemoryMappingList *list);
 
 void memory_mapping_list_init(MemoryMappingList *list);
 
-/*
- * Return value:
- *    0: success
- *   -1: failed
- *   -2: unsupported
- */
-int qemu_get_guest_memory_mapping(MemoryMappingList *list);
+void guest_phys_blocks_free(GuestPhysBlockList *list);
+void guest_phys_blocks_init(GuestPhysBlockList *list);
+void guest_phys_blocks_append(GuestPhysBlockList *list);
+
+void qemu_get_guest_memory_mapping(MemoryMappingList *list,
+                                   const GuestPhysBlockList *guest_phys_blocks,
+                                   Error **errp);
 
 /* get guest's memory mapping without do paging(virtual address is 0). */
-void qemu_get_guest_simple_memory_mapping(MemoryMappingList *list);
+void qemu_get_guest_simple_memory_mapping(MemoryMappingList *list,
+                                  const GuestPhysBlockList *guest_phys_blocks);
 
 void memory_mapping_filter(MemoryMappingList *list, int64_t begin,
                            int64_t length);