memory: do not touch code dirty bitmap unless TCG is enabled
cpu_physical_memory_set_dirty_lebitmap unconditionally syncs the DIRTY_MEMORY_CODE bitmap. This however is unused unless TCG is enabled. Reviewed-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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@ -162,11 +162,14 @@ static inline void cpu_physical_memory_set_dirty_lebitmap(unsigned long *bitmap,
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ram_list.dirty_memory[DIRTY_MEMORY_MIGRATION][page + k] |= temp;
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ram_list.dirty_memory[DIRTY_MEMORY_VGA][page + k] |= temp;
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ram_list.dirty_memory[DIRTY_MEMORY_CODE][page + k] |= temp;
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if (tcg_enabled()) {
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ram_list.dirty_memory[DIRTY_MEMORY_CODE][page + k] |= temp;
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}
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}
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}
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xen_modified_memory(start, pages << TARGET_PAGE_BITS);
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} else {
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uint8_t clients = tcg_enabled() ? DIRTY_CLIENTS_ALL : DIRTY_CLIENTS_NOCODE;
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/*
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* bitmap-traveling is faster than memory-traveling (for addr...)
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* especially when most of the memory is not dirty.
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@ -181,8 +184,7 @@ static inline void cpu_physical_memory_set_dirty_lebitmap(unsigned long *bitmap,
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addr = page_number * TARGET_PAGE_SIZE;
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ram_addr = start + addr;
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cpu_physical_memory_set_dirty_range(ram_addr,
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TARGET_PAGE_SIZE * hpratio,
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DIRTY_CLIENTS_ALL);
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TARGET_PAGE_SIZE * hpratio, clients);
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} while (c != 0);
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}
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}
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