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authorJuan Quintela <quintela@redhat.com>2023-05-11 16:12:06 +0200
committerJuan Quintela <quintela@redhat.com>2023-05-15 10:33:04 +0200
commitedd83a70dc448f9b7d0f636ff822d1284f8f95d1 (patch)
tree0081b53649e5930563eecdc8b7e11331de032cc2 /migration
parentbeeda9b7cde6d62cda4700dc4c28e1142690cae2 (diff)
migration: Teach dirtyrate about qemu_target_page_size()
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230511141208.17779-4-quintela@redhat.com>
Diffstat (limited to 'migration')
-rw-r--r--migration/dirtyrate.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/migration/dirtyrate.c b/migration/dirtyrate.c
index ae52c42c4c..9383e91cd6 100644
--- a/migration/dirtyrate.c
+++ b/migration/dirtyrate.c
@@ -313,6 +313,7 @@ static void update_dirtyrate(uint64_t msec)
*/
static uint32_t compute_page_hash(void *ptr)
{
+ size_t page_size = qemu_target_page_size();
uint32_t i;
uint64_t v1, v2, v3, v4;
uint64_t res;
@@ -322,14 +323,14 @@ static uint32_t compute_page_hash(void *ptr)
v2 = QEMU_XXHASH_SEED + XXH_PRIME64_2;
v3 = QEMU_XXHASH_SEED + 0;
v4 = QEMU_XXHASH_SEED - XXH_PRIME64_1;
- for (i = 0; i < TARGET_PAGE_SIZE / 8; i += 4) {
+ for (i = 0; i < page_size / 8; i += 4) {
v1 = XXH64_round(v1, p[i + 0]);
v2 = XXH64_round(v2, p[i + 1]);
v3 = XXH64_round(v3, p[i + 2]);
v4 = XXH64_round(v4, p[i + 3]);
}
res = XXH64_mergerounds(v1, v2, v3, v4);
- res += TARGET_PAGE_SIZE;
+ res += page_size;
res = XXH64_avalanche(res);
return (uint32_t)(res & UINT32_MAX);
}
@@ -344,7 +345,8 @@ static uint32_t get_ramblock_vfn_hash(struct RamblockDirtyInfo *info,
{
uint32_t hash;
- hash = compute_page_hash(info->ramblock_addr + vfn * TARGET_PAGE_SIZE);
+ hash = compute_page_hash(info->ramblock_addr +
+ vfn * qemu_target_page_size());
trace_get_ramblock_vfn_hash(info->idstr, vfn, hash);
return hash;