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[Qemu-devel] [PATCH 3/6] savevm: Add VMSTATE_FLOAT64 helpers
From: |
David Gibson |
Subject: |
[Qemu-devel] [PATCH 3/6] savevm: Add VMSTATE_FLOAT64 helpers |
Date: |
Tue, 12 Mar 2013 14:06:02 +1100 |
The current savevm code includes VMSTATE helpers for a number of commonly
used data types, but not for the float64 type used by the internal floating
point emulation code. This patch fixes the deficiency.
Signed-off-by: David Gibson <address@hidden>
---
include/migration/vmstate.h | 15 +++++++++++++++
savevm.c | 23 +++++++++++++++++++++++
2 files changed, 38 insertions(+)
diff --git a/include/migration/vmstate.h b/include/migration/vmstate.h
index f65e65f..f0a6374 100644
--- a/include/migration/vmstate.h
+++ b/include/migration/vmstate.h
@@ -153,6 +153,8 @@ extern const VMStateInfo vmstate_info_uint16;
extern const VMStateInfo vmstate_info_uint32;
extern const VMStateInfo vmstate_info_uint64;
+extern const VMStateInfo vmstate_info_float64;
+
extern const VMStateInfo vmstate_info_timer;
extern const VMStateInfo vmstate_info_buffer;
extern const VMStateInfo vmstate_info_unused_buffer;
@@ -539,6 +541,13 @@ extern const VMStateInfo vmstate_info_bitmap;
#define VMSTATE_UINT32_TEST(_f, _s, _t) \
VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint32, uint32_t)
+
+#define VMSTATE_FLOAT64_V(_f, _s, _v) \
+ VMSTATE_SINGLE(_f, _s, _v, vmstate_info_float64, float64)
+
+#define VMSTATE_FLOAT64(_f, _s) \
+ VMSTATE_FLOAT64_V(_f, _s, 0)
+
#define VMSTATE_TIMER_TEST(_f, _s, _test) \
VMSTATE_POINTER_TEST(_f, _s, _test, vmstate_info_timer, QEMUTimer *)
@@ -605,6 +614,12 @@ extern const VMStateInfo vmstate_info_bitmap;
#define VMSTATE_INT64_ARRAY(_f, _s, _n) \
VMSTATE_INT64_ARRAY_V(_f, _s, _n, 0)
+#define VMSTATE_FLOAT64_ARRAY_V(_f, _s, _n, _v) \
+ VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_float64, float64)
+
+#define VMSTATE_FLOAT64_ARRAY(_f, _s, _n) \
+ VMSTATE_FLOAT64_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/savevm.c b/savevm.c
index 5dc678e..55b0305 100644
--- a/savevm.c
+++ b/savevm.c
@@ -1133,6 +1133,29 @@ const VMStateInfo vmstate_info_uint16_equal = {
.put = put_uint16,
};
+/* floating point */
+
+static int get_float64(QEMUFile *f, void *pv, size_t size)
+{
+ float64 *v = pv;
+
+ *v = make_float64(qemu_get_be64(f));
+ return 0;
+}
+
+static void put_float64(QEMUFile *f, void *pv, size_t size)
+{
+ uint64_t *v = pv;
+
+ qemu_put_be64(f, float64_val(*v));
+}
+
+const VMStateInfo vmstate_info_float64 = {
+ .name = "float64",
+ .get = get_float64,
+ .put = put_float64,
+};
+
/* timers */
static int get_timer(QEMUFile *f, void *pv, size_t size)
--
1.7.10.4
- [Qemu-devel] [0/6] Simple extensions to VMStateDescription features, David Gibson, 2013/03/11
- [Qemu-devel] [PATCH 3/6] savevm: Add VMSTATE_FLOAT64 helpers,
David Gibson <=
- [Qemu-devel] [PATCH 2/6] savevm: Add VMSTATE_UINTTL_EQUAL helper, David Gibson, 2013/03/11
- [Qemu-devel] [PATCH 5/6] savevm: Fix bugs in the VMSTATE_VBUFFER_MULTIPLY definition, David Gibson, 2013/03/11
- [Qemu-devel] [PATCH 4/6] savevm: Add VMSTATE_STRUCT_VARRAY_POINTER_UINT32, David Gibson, 2013/03/11
- [Qemu-devel] [PATCH 1/6] savevm: Add VMSTATE_UINT64_EQUAL helpers, David Gibson, 2013/03/11
- [Qemu-devel] [PATCH 6/6] savevm: Implement VMS_DIVIDE flag, David Gibson, 2013/03/11
- Re: [Qemu-devel] [0/6] Simple extensions to VMStateDescription features, Juan Quintela, 2013/03/14