From a2635f0a7508c3291c6bd2d88ea31b6ae7dfa341 Mon Sep 17 00:00:00 2001 From: Chuan Zheng Date: Wed, 16 Sep 2020 14:21:58 +0800 Subject: [PATCH] migration/dirtyrate: Add RamblockDirtyInfo to store sampled page info Add RamblockDirtyInfo to store sampled page info of each ramblock. Signed-off-by: Chuan Zheng Reviewed-by: Dr. David Alan Gilbert Reviewed-by: David Edmondson Reviewed-by: Li Qiang Message-Id: <1600237327-33618-4-git-send-email-zhengchuan@huawei.com> Signed-off-by: Dr. David Alan Gilbert --- migration/dirtyrate.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/migration/dirtyrate.h b/migration/dirtyrate.h index 84ab9409ac..8707df852d 100644 --- a/migration/dirtyrate.h +++ b/migration/dirtyrate.h @@ -19,10 +19,28 @@ */ #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