Patchwork [1/9] vmstate: add VMSTATE_UINT32_EQUAL

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Submitter Juan Quintela
Date March 10, 2011, 11:33 a.m.
Message ID <a313fffb2c3511992ecd3b67d678b41b2d8f4d0d.1299756608.git.quintela@redhat.com>
Download mbox | patch
Permalink /patch/86228/
State New
Headers show

Comments

Juan Quintela - March 10, 2011, 11:33 a.m.
Signed-off-by: Juan Quintela <quintela@redhat.com>
---
 hw/hw.h  |    4 ++++
 savevm.c |   21 +++++++++++++++++++++
 2 files changed, 25 insertions(+), 0 deletions(-)

Patch

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)