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qcow2: Allow >4 GB VM state

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This is a compatible extension to the snapshot header format that allows
saving a 64 bit VM state size.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Kevin Wolf 2011-11-16 11:35:54 +01:00
parent 3763f26f2f
commit c2c9a46609
5 changed files with 42 additions and 6 deletions
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2
block.h
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@ -22,7 +22,7 @@ typedef struct QEMUSnapshotInfo {
/* the following fields are informative. They are not needed for
the consistency of the snapshot */
char name[256]; /* user chosen name */
uint32_t vm_state_size; /* VM state info size */
uint64_t vm_state_size; /* VM state info size */
uint32_t date_sec; /* UTC date of the snapshot */
uint32_t date_nsec;
uint64_t vm_clock_nsec; /* VM clock relative to boot */