[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH 1/4] migration: Add VMSTATE_UNUSED_VARRAY_UINT32
From: |
Dr. David Alan Gilbert (git) |
Subject: |
[Qemu-devel] [PATCH 1/4] migration: Add VMSTATE_UNUSED_VARRAY_UINT32 |
Date: |
Fri, 3 Feb 2017 16:06:48 +0000 |
From: "Dr. David Alan Gilbert" <address@hidden>
VMSTATE_UNUSED_VARRAY_UINT32 is used to skip a chunk of the stream
that's an n-element array; note the array size and the dynamic value
read never get multiplied so there's no overflow risk.
Signed-off-by: Dr. David Alan Gilbert <address@hidden>
---
include/migration/vmstate.h | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/include/migration/vmstate.h b/include/migration/vmstate.h
index 6233fe2..cc66910 100644
--- a/include/migration/vmstate.h
+++ b/include/migration/vmstate.h
@@ -660,6 +660,17 @@ extern const VMStateInfo vmstate_info_qtailq;
.flags = VMS_BUFFER, \
}
+/* Discard size * field_num bytes, where field_num is a uint32 member */
+#define VMSTATE_UNUSED_VARRAY_UINT32(_state, _test, _version, _field_num,
_size) {\
+ .name = "unused", \
+ .field_exists = (_test), \
+ .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\
+ .version_id = (_version), \
+ .size = (_size), \
+ .info = &vmstate_info_unused_buffer, \
+ .flags = VMS_VARRAY_UINT32 | VMS_BUFFER, \
+}
+
/* _field_size should be a int32_t field in the _state struct giving the
* size of the bitmap _field in bits.
*/
--
2.9.3
- [Qemu-devel] [PATCH 0/4] virtio-net VMState conversion and new VMSTATE macros, Dr. David Alan Gilbert (git), 2017/02/03
- [Qemu-devel] [PATCH 2/4] migration: Add VMSTATE_WITH_TMP, Dr. David Alan Gilbert (git), 2017/02/03
- [Qemu-devel] [PATCH 1/4] migration: Add VMSTATE_UNUSED_VARRAY_UINT32,
Dr. David Alan Gilbert (git) <=
- [Qemu-devel] [PATCH 3/4] tests/migration: Add test for VMSTATE_WITH_TMP, Dr. David Alan Gilbert (git), 2017/02/03
- [Qemu-devel] [PATCH 4/4] virtio/migration: Migrate virtio-net to VMState, Dr. David Alan Gilbert (git), 2017/02/03
- Re: [Qemu-devel] [PATCH 0/4] virtio-net VMState conversion and new VMSTATE macros, Michael S. Tsirkin, 2017/02/07
- Re: [Qemu-devel] [PATCH 0/4] virtio-net VMState conversion and new VMSTATE macros, Dr. David Alan Gilbert, 2017/02/13