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migration: API to clear bits of guest free pages from the dirty bitmap

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This patch adds an API to clear bits corresponding to guest free pages
from the dirty bitmap. Spilt the free page block if it crosses the QEMU
RAMBlock boundary.

Signed-off-by: Wei Wang <wei.w.wang@intel.com>
CC: Dr. David Alan Gilbert <dgilbert@redhat.com>
CC: Juan Quintela <quintela@redhat.com>
CC: Michael S. Tsirkin <mst@redhat.com>
CC: Peter Xu <peterx@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Message-Id: <1544516693-5395-5-git-send-email-wei.w.wang@intel.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
This commit is contained in:
Wei Wang 2018-12-11 16:24:50 +08:00 • committed by Dr. David Alan Gilbert
parent 386a907b37
commit 6bcb05fc42
2 changed files with 49 additions and 0 deletions
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2
include/migration/misc.h
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@ -14,12 +14,14 @@
#ifndef MIGRATION_MISC_H
#define MIGRATION_MISC_H
#include "exec/cpu-common.h"
#include "qemu/notify.h"
#include "qapi/qapi-types-net.h"
/* migration/ram.c */
void ram_mig_init(void);
void qemu_guest_free_page_hint(void *addr, size_t len);
/* migration/block.c */