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| author | Paolo Bonzini <pbonzini@redhat.com> | 2015-03-23 11:41:32 +0100 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2015-06-05 17:10:00 +0200 |
| commit | 9460dee4b2258e3990906fb34099481c8334c267 (patch) | |
| tree | ae15c915a7fcf741b6a55bcee3a14656ad5472fd /include/exec | |
| parent | e87f7778b64d4a6a78e16c288c7fdc6c15317d5f (diff) | |
| download | qemu-9460dee4b2258e3990906fb34099481c8334c267.zip qemu-9460dee4b2258e3990906fb34099481c8334c267.tar.gz qemu-9460dee4b2258e3990906fb34099481c8334c267.tar.bz2 | |
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>
Diffstat (limited to 'include/exec')
| -rw-r--r-- | include/exec/ram_addr.h | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/include/exec/ram_addr.h b/include/exec/ram_addr.h index 3e42b4f..9811010 100644 --- a/include/exec/ram_addr.h +++ b/include/exec/ram_addr.h @@ -162,11 +162,14 @@ static inline void cpu_physical_memory_set_dirty_lebitmap(unsigned long *bitmap, ram_list.dirty_memory[DIRTY_MEMORY_MIGRATION][page + k] |= temp; ram_list.dirty_memory[DIRTY_MEMORY_VGA][page + k] |= temp; - ram_list.dirty_memory[DIRTY_MEMORY_CODE][page + k] |= temp; + if (tcg_enabled()) { + ram_list.dirty_memory[DIRTY_MEMORY_CODE][page + k] |= temp; + } } } xen_modified_memory(start, pages << TARGET_PAGE_BITS); } else { + uint8_t clients = tcg_enabled() ? DIRTY_CLIENTS_ALL : DIRTY_CLIENTS_NOCODE; /* * bitmap-traveling is faster than memory-traveling (for addr...) * especially when most of the memory is not dirty. @@ -181,8 +184,7 @@ static inline void cpu_physical_memory_set_dirty_lebitmap(unsigned long *bitmap, addr = page_number * TARGET_PAGE_SIZE; ram_addr = start + addr; cpu_physical_memory_set_dirty_range(ram_addr, - TARGET_PAGE_SIZE * hpratio, - DIRTY_CLIENTS_ALL); + TARGET_PAGE_SIZE * hpratio, clients); } while (c != 0); } } |