Patchwork [15/26] vmstate: add support for uint8_t equal

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Submitter Juan Quintela
Date Sept. 10, 2009, 1:04 a.m.
Message ID <24ce07c3d9eca831a6be29d36be46b38f23809bd.1252543872.git.quintela@redhat.com>
Download mbox | patch
Permalink /patch/33251/
State Superseded
Headers show

Comments

Juan Quintela - Sept. 10, 2009, 1:04 a.m.
Signed-off-by: Juan Quintela <quintela@redhat.com>
---
 hw/hw.h  |    4 ++++
 savevm.c |   20 ++++++++++++++++++++
 2 files changed, 24 insertions(+), 0 deletions(-)

Patch

diff --git a/hw/hw.h b/hw/hw.h
index d64a0e8..4ff7dbd 100644
--- a/hw/hw.h
+++ b/hw/hw.h
@@ -318,6 +318,7 @@  extern const VMStateInfo vmstate_info_int16;
 extern const VMStateInfo vmstate_info_int32;
 extern const VMStateInfo vmstate_info_int64;

+extern const VMStateInfo vmstate_info_uint8_equal;
 extern const VMStateInfo vmstate_info_int32_equal;
 extern const VMStateInfo vmstate_info_int32_le;

@@ -461,6 +462,9 @@  extern const VMStateDescription vmstate_pci_device;
 #define VMSTATE_UINT64(_f, _s)                                        \
     VMSTATE_UINT64_V(_f, _s, 0)

+#define VMSTATE_UINT8_EQUAL(_f, _s)                                   \
+    VMSTATE_SINGLE(_f, _s, 0, vmstate_info_uint8_equal, uint8_t)
+
 #define VMSTATE_INT32_EQUAL(_f, _s)                                   \
     VMSTATE_SINGLE(_f, _s, 0, vmstate_info_int32_equal, int32_t)

diff --git a/savevm.c b/savevm.c
index c4bee37..651e0e0 100644
--- a/savevm.c
+++ b/savevm.c
@@ -847,6 +847,26 @@  const VMStateInfo vmstate_info_uint64 = {
     .put  = put_uint64,
 };

+/* 8 bit int. See that the received value is the same than the one
+   in the field */
+
+static int get_uint8_equal(QEMUFile *f, void *pv, size_t size)
+{
+    uint8_t *v = pv;
+    uint8_t v2;
+    qemu_get_8s(f, &v2);
+
+    if (*v == v2)
+        return 0;
+    return -EINVAL;
+}
+
+const VMStateInfo vmstate_info_uint8_equal = {
+    .name = "int32 equal",
+    .get  = get_uint8_equal,
+    .put  = put_uint8,
+};
+
 /* timers  */

 static int get_timer(QEMUFile *f, void *pv, size_t size)