vmstate: introduce CPU_DoubleU arrays

Add vmstate support for migrating arrays of CPU_DoubleU via VMSTATE_CPUDOUBLE_ARRAY. Signed-off-by: Juan Quintela <[email protected]> [PMM: rebased, since files have all moved since 2012; added VMSTATE_CPUDOUBLE_ARRAY_V for consistency with FLOAT64] Signed-off-by: Peter Maydell <[email protected]> Signed-off-by: Mark Cave-Ayland <[email protected]>
pfliu · Jan 16, 2016 · 5517474 · 5517474
1 parent 5a57acb
commit 5517474
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diff --git a/include/migration/vmstate.h b/include/migration/vmstate.h
@@ -156,6 +156,7 @@ extern const VMStateInfo vmstate_info_uint32;
 extern const VMStateInfo vmstate_info_uint64;
 
 extern const VMStateInfo vmstate_info_float64;
+extern const VMStateInfo vmstate_info_cpudouble;
 
 extern const VMStateInfo vmstate_info_timer;
 extern const VMStateInfo vmstate_info_buffer;
@@ -781,6 +782,12 @@ extern const VMStateInfo vmstate_info_bitmap;
 #define VMSTATE_FLOAT64_ARRAY(_f, _s, _n)                             \
     VMSTATE_FLOAT64_ARRAY_V(_f, _s, _n, 0)
 
+#define VMSTATE_CPUDOUBLE_ARRAY_V(_f, _s, _n, _v)                     \
+    VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_cpudouble, CPU_DoubleU)
+
+#define VMSTATE_CPUDOUBLE_ARRAY(_f, _s, _n)                           \
+    VMSTATE_CPUDOUBLE_ARRAY_V(_f, _s, _n, 0)
+
 #define VMSTATE_BUFFER_V(_f, _s, _v)                                  \
     VMSTATE_STATIC_BUFFER(_f, _s, _v, NULL, 0, sizeof(typeof_field(_s, _f)))
 

diff --git a/migration/vmstate.c b/migration/vmstate.c
@@ -794,6 +794,29 @@ const VMStateInfo vmstate_info_float64 = {
     .put  = put_float64,
 };
 
+/* CPU_DoubleU type */
+
+static int get_cpudouble(QEMUFile *f, void *pv, size_t size)
+{
+    CPU_DoubleU *v = pv;
+    qemu_get_be32s(f, &v->l.upper);
+    qemu_get_be32s(f, &v->l.lower);
+    return 0;
+}
+
+static void put_cpudouble(QEMUFile *f, void *pv, size_t size)
+{
+    CPU_DoubleU *v = pv;
+    qemu_put_be32s(f, &v->l.upper);
+    qemu_put_be32s(f, &v->l.lower);
+}
+
+const VMStateInfo vmstate_info_cpudouble = {
+    .name = "CPU_Double_U",
+    .get  = get_cpudouble,
+    .put  = put_cpudouble,
+};
+
 /* uint8_t buffers */
 
 static int get_buffer(QEMUFile *f, void *pv, size_t size)