qemu-nbd: support internal snapshot export

[qemu.git] / thunk.c

diff --git a/thunk.c b/thunk.c
index 06571889aeeb3ae561f03175070e6ec61949c36f..3cca047509e7483da2f45701b16055eb9f028cf6 100644 (file)
--- a/thunk.c
+++ b/thunk.c
@@ -21,7 +21,7 @@
 #include <stdarg.h>
 
 #include "qemu.h"
-#include "thunk.h"
+#include "exec/user/thunk.h"
 
 //#define DEBUG
 
@@ -46,6 +46,7 @@ static inline const argtype *thunk_type_next(const argtype *type_ptr)
     case TYPE_LONG:
     case TYPE_ULONG:
     case TYPE_PTRVOID:
+    case TYPE_OLDDEVT:
         return type_ptr;
     case TYPE_PTR:
         return thunk_type_next_ptr(type_ptr);
@@ -188,6 +189,33 @@ const argtype *thunk_convert(void *dst, const void *src,
 #else
 #warning unsupported conversion
 #endif
+    case TYPE_OLDDEVT:
+    {
+        uint64_t val = 0;
+        switch (thunk_type_size(type_ptr - 1, !to_host)) {
+        case 2:
+            val = *(uint16_t *)src;
+            break;
+        case 4:
+            val = *(uint32_t *)src;
+            break;
+        case 8:
+            val = *(uint64_t *)src;
+            break;
+        }
+        switch (thunk_type_size(type_ptr - 1, to_host)) {
+        case 2:
+            *(uint16_t *)dst = tswap16(val);
+            break;
+        case 4:
+            *(uint32_t *)dst = tswap32(val);
+            break;
+        case 8:
+            *(uint64_t *)dst = tswap64(val);
+            break;
+        }
+        break;
+    }
     case TYPE_ARRAY:
         {
             int array_length, i, dst_size, src_size;