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[Qemu-devel] [PATCH 1/6] savevm: Add VMSTATE_UINT64_EQUAL helpers
From: |
David Gibson |
Subject: |
[Qemu-devel] [PATCH 1/6] savevm: Add VMSTATE_UINT64_EQUAL helpers |
Date: |
Wed, 26 Sep 2012 13:21:13 +1000 |
The savevm code already includes a number of *_EQUAL helpers which act as
sanity checks verifying that the configuration of the saved state matches
that of the machine we're loading into to work. Variants already exist
for 8 bit 16 bit and 32 bit integers, but not 64 bit integers. This patch
fills that hole, adding a UINT64 version.
Signed-off-by: David Gibson <address@hidden>
---
savevm.c | 20 ++++++++++++++++++++
vmstate.h | 7 +++++++
2 files changed, 27 insertions(+)
diff --git a/savevm.c b/savevm.c
index c7fe283..f38e16e 100644
--- a/savevm.c
+++ b/savevm.c
@@ -1043,6 +1043,26 @@ const VMStateInfo vmstate_info_uint64 = {
.put = put_uint64,
};
+/* 64 bit unsigned int. See that the received value is the same than the one
+ in the field */
+
+static int get_uint64_equal(QEMUFile *f, void *pv, size_t size)
+{
+ uint64_t *v = pv;
+ uint64_t v2;
+ qemu_get_be64s(f, &v2);
+
+ if (*v == v2)
+ return 0;
+ return -EINVAL;
+}
+
+const VMStateInfo vmstate_info_uint64_equal = {
+ .name = "int64 equal",
+ .get = get_uint64_equal,
+ .put = put_uint64,
+};
+
/* 8 bit int. See that the received value is the same than the one
in the field */
diff --git a/vmstate.h b/vmstate.h
index c9c320e..6c7fbe0 100644
--- a/vmstate.h
+++ b/vmstate.h
@@ -129,6 +129,7 @@ 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_uint64_equal;
extern const VMStateInfo vmstate_info_int32_le;
extern const VMStateInfo vmstate_info_uint8;
@@ -488,6 +489,12 @@ extern const VMStateInfo vmstate_info_unused_buffer;
#define VMSTATE_UINT32_EQUAL(_f, _s) \
VMSTATE_SINGLE(_f, _s, 0, vmstate_info_uint32_equal, uint32_t)
+#define VMSTATE_UINT64_EQUAL_V(_f, _s, _v) \
+ VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint64_equal, uint64_t)
+
+#define VMSTATE_UINT64_EQUAL(_f, _s) \
+ VMSTATE_UINT64_EQUAL_V(_f, _s, 0)
+
#define VMSTATE_INT32_LE(_f, _s) \
VMSTATE_SINGLE(_f, _s, 0, vmstate_info_int32_le, int32_t)
--
1.7.10.4
- [Qemu-devel] [0/6] Fill gaps in savevm support, David Gibson, 2012/09/25
- [Qemu-devel] [PATCH 2/6] savevm: Add VMSTATE_UINTTL_EQUAL helper, David Gibson, 2012/09/25
- [Qemu-devel] [PATCH 1/6] savevm: Add VMSTATE_UINT64_EQUAL helpers,
David Gibson <=
- [Qemu-devel] [PATCH 4/6] savevm: Add VMSTATE_ helpers for target_phys_addr_t, David Gibson, 2012/09/25
- [Qemu-devel] [PATCH 6/6] savevm: Fix bugs in the VMSTATE_VBUFFER_MULTIPLY definition, David Gibson, 2012/09/25
- [Qemu-devel] [PATCH 3/6] savevm: Add VMSTATE_FLOAT64 helpers, David Gibson, 2012/09/25
- [Qemu-devel] [PATCH 5/6] savevm: Add VMSTATE_STRUCT_VARRAY_POINTER_UINT32, David Gibson, 2012/09/25