Add RamblockDirtyInfo to store sampled page info of each ramblock.
Signed-off-by: Chuan Zheng <zhengch...@huawei.com>
Reviewed-by: Dr. David Alan Gilbert <dgilb...@redhat.com>
---
migration/dirtyrate.h | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/migration/dirtyrate.h b/migration/dirtyrate.h
index 5be9714..479e222 100644
--- a/migration/dirtyrate.h
+++ b/migration/dirtyrate.h
@@ -19,11 +19,29 @@
*/
#define DIRTYRATE_DEFAULT_SAMPLE_PAGES 512
+/*
+ * Record ramblock idstr
+ */
+#define RAMBLOCK_INFO_MAX_LEN 256
+
struct DirtyRateConfig {
uint64_t sample_pages_per_gigabytes; /* sample pages per GB */
int64_t sample_period_seconds; /* time duration between two sampling */
};
+/*
+ * Store dirtypage info for each ramblock.
+ */
+struct RamblockDirtyInfo {
+ char idstr[RAMBLOCK_INFO_MAX_LEN]; /* idstr for each ramblock */
+ uint8_t *ramblock_addr; /* base address of ramblock we measure */
+ uint64_t ramblock_pages; /* ramblock size in TARGET_PAGE_SIZE */
+ uint64_t *sample_page_vfn; /* relative offset address for sampled page */
+ uint64_t sample_pages_count; /* count of sampled pages */
+ uint64_t sample_dirty_count; /* count of dirty pages we measure */
+ uint32_t *hash_result; /* array of hash result for sampled pages */
+};
+
void *get_dirtyrate_thread(void *arg);
#endif
--
1.8.3.1
