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>
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@ -313,6 +313,7 @@ static void update_dirtyrate(uint64_t msec)
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*/
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static uint32_t compute_page_hash(void *ptr)
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{
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size_t page_size = qemu_target_page_size();
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uint32_t i;
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uint64_t v1, v2, v3, v4;
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uint64_t res;
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@ -322,14 +323,14 @@ static uint32_t compute_page_hash(void *ptr)
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v2 = QEMU_XXHASH_SEED + XXH_PRIME64_2;
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v3 = QEMU_XXHASH_SEED + 0;
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v4 = QEMU_XXHASH_SEED - XXH_PRIME64_1;
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for (i = 0; i < TARGET_PAGE_SIZE / 8; i += 4) {
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for (i = 0; i < page_size / 8; i += 4) {
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v1 = XXH64_round(v1, p[i + 0]);
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v2 = XXH64_round(v2, p[i + 1]);
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v3 = XXH64_round(v3, p[i + 2]);
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v4 = XXH64_round(v4, p[i + 3]);
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}
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res = XXH64_mergerounds(v1, v2, v3, v4);
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res += TARGET_PAGE_SIZE;
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res += page_size;
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res = XXH64_avalanche(res);
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return (uint32_t)(res & UINT32_MAX);
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}
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@ -344,7 +345,8 @@ static uint32_t get_ramblock_vfn_hash(struct RamblockDirtyInfo *info,
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{
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uint32_t hash;
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hash = compute_page_hash(info->ramblock_addr + vfn * TARGET_PAGE_SIZE);
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hash = compute_page_hash(info->ramblock_addr +
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vfn * qemu_target_page_size());
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trace_get_ramblock_vfn_hash(info->idstr, vfn, hash);
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return hash;
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