From a3b52535e8a577d9b12887a34183fe9077ea24d8 Mon Sep 17 00:00:00 2001 From: Vladimir Sementsov-Ogievskiy Date: Wed, 28 Jun 2017 15:05:25 +0300 Subject: qmp: add x-debug-block-dirty-bitmap-sha256 Signed-off-by: Vladimir Sementsov-Ogievskiy Message-id: 20170628120530.31251-26-vsementsov@virtuozzo.com Signed-off-by: Max Reitz --- util/hbitmap.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'util/hbitmap.c') diff --git a/util/hbitmap.c b/util/hbitmap.c index 0c1591a594..21535cc90b 100644 --- a/util/hbitmap.c +++ b/util/hbitmap.c @@ -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; +} -- cgit 1.4.1