[Qemu-devel] [PATCH 1/9] vmstate: add VMSTATE_UINT32_EQUAL

[Juan Quintela]

Signed-off-by: Juan Quintela <address@hidden>
---
 hw/hw.h  |    4 ++++
 savevm.c |   21 +++++++++++++++++++++
 2 files changed, 25 insertions(+), 0 deletions(-)

diff --git a/hw/hw.h b/hw/hw.h
index 4e2d592..0299207 100644
--- a/hw/hw.h
+++ b/hw/hw.h
@@ -343,6 +343,7 @@ extern const VMStateInfo vmstate_info_int64;
 extern const VMStateInfo vmstate_info_uint8_equal;
 extern const VMStateInfo vmstate_info_uint16_equal;
 extern const VMStateInfo vmstate_info_int32_equal;
+extern const VMStateInfo vmstate_info_uint32_equal;
 extern const VMStateInfo vmstate_info_int32_le;

 extern const VMStateInfo vmstate_info_uint8;
@@ -704,6 +705,9 @@ extern const VMStateDescription vmstate_usb_device;
 #define VMSTATE_INT32_EQUAL(_f, _s)                                   \
     VMSTATE_SINGLE(_f, _s, 0, vmstate_info_int32_equal, int32_t)

+#define VMSTATE_UINT32_EQUAL(_f, _s)                                   \
+    VMSTATE_SINGLE(_f, _s, 0, vmstate_info_uint32_equal, uint32_t)
+
 #define VMSTATE_INT32_LE(_f, _s)                                   \
     VMSTATE_SINGLE(_f, _s, 0, vmstate_info_int32_le, int32_t)

diff --git a/savevm.c b/savevm.c
index a50fd31..ce063d1 100644
--- a/savevm.c
+++ b/savevm.c
@@ -882,6 +882,27 @@ const VMStateInfo vmstate_info_uint32 = {
     .put  = put_uint32,
 };

+/* 32 bit uint. See that the received value is the same than the one
+   in the field */
+
+static int get_uint32_equal(QEMUFile *f, void *pv, size_t size)
+{
+    uint32_t *v = pv;
+    uint32_t v2;
+    qemu_get_be32s(f, &v2);
+
+    if (*v == v2) {
+        return 0;
+    }
+    return -EINVAL;
+}
+
+const VMStateInfo vmstate_info_uint32_equal = {
+    .name = "uint32 equal",
+    .get  = get_uint32_equal,
+    .put  = put_uint32,
+};
+
 /* 64 bit unsigned int */

 static int get_uint64(QEMUFile *f, void *pv, size_t size)
-- 
1.7.4