1 files changed, 9 insertions, 0 deletions
diff --git a/include/sysemu/dump.h b/include/sysemu/dump.h
index 6d4d0bcc3c..92a95e4b92 100644
--- a/include/sysemu/dump.h
+++ b/include/sysemu/dump.h
@@ -41,6 +41,7 @@
 #define DISKDUMP_HEADER_BLOCKS      (1)
 #define BUFSIZE_BITMAP              (TARGET_PAGE_SIZE)
 #define PFN_BUFBITMAP               (CHAR_BIT * BUFSIZE_BITMAP)
+#define BUFSIZE_DATA_CACHE          (TARGET_PAGE_SIZE * 4)
 
 typedef struct ArchDumpInfo {
     int d_machine;  /* Architecture */
@@ -142,6 +143,14 @@ typedef struct QEMU_PACKED KdumpSubHeader64 {
     uint64_t max_mapnr_64;          /* header_version 6 and later */
 } KdumpSubHeader64;
 
+typedef struct DataCache {
+    int fd;             /* fd of the file where to write the cached data */
+    uint8_t *buf;       /* buffer for cached data */
+    size_t buf_size;    /* size of the buf */
+    size_t data_size;   /* size of cached data in buf */
+    off_t offset;       /* offset of the file */
+} DataCache;
+
 struct GuestPhysBlockList; /* memory_mapping.h */
 int cpu_get_dump_info(ArchDumpInfo *info,
                       const struct GuestPhysBlockList *guest_phys_blocks);