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qmp: add x-debug-block-dirty-bitmap-sha256

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Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20170628120530.31251-26-vsementsov@virtuozzo.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2017-06-28 15:05:25 +03:00 • committed by Max Reitz
parent eb738bb50f
commit a3b52535e8
7 changed files with 78 additions and 1 deletions
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11
util/hbitmap.c
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@ -13,6 +13,7 @@
#include "qemu/hbitmap.h"
#include "qemu/host-utils.h"
#include "trace.h"
#include "crypto/hash.h"
/* HBitmaps provides an array of bits. The bits are stored as usual in an
* array of unsigned longs, but HBitmap is also optimized to provide fast
@ -727,3 +728,13 @@ void hbitmap_free_meta(HBitmap *hb)
hbitmap_free(hb->meta);
hb->meta = NULL;
}
char *hbitmap_sha256(const HBitmap *bitmap, Error **errp)
{
size_t size = bitmap->sizes[HBITMAP_LEVELS - 1] * sizeof(unsigned long);
char *data = (char *)bitmap->levels[HBITMAP_LEVELS - 1];
char *hash = NULL;
qcrypto_hash_digest(QCRYPTO_HASH_ALG_SHA256, data, size, &hash, errp);
return hash;
}