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author | Paolo Bonzini <pbonzini@redhat.com> | 2015-03-23 10:50:57 +0100 |
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committer | Paolo Bonzini <pbonzini@redhat.com> | 2015-06-05 17:09:58 +0200 |
commit | 2d1a35bef0ed96b3f23535e459c552414ccdbafd (patch) | |
tree | 2911512c3fc1e768a4d9799b84c1d6c89ad470f9 /include | |
parent | 5299c0f2cf951c23ec681ff87e455d1cf4ec537b (diff) | |
download | hqemu-2d1a35bef0ed96b3f23535e459c552414ccdbafd.zip hqemu-2d1a35bef0ed96b3f23535e459c552414ccdbafd.tar.gz |
memory: differentiate memory_region_is_logging and memory_region_get_dirty_log_mask
For now memory regions only track DIRTY_MEMORY_VGA individually, but
this will change soon. To support this, split memory_region_is_logging
in two functions: one that returns a given bit from dirty_log_mask,
and one that returns the entire mask. memory_region_is_logging gets an
extra parameter so that the compiler flags misuse.
While VGA-specific users (including the Xen listener!) will want to keep
checking that bit, KVM and vhost check for "any bit except migration"
(because migration is handled via the global start/stop listener
callbacks).
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'include')
-rw-r--r-- | include/exec/memory.h | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/include/exec/memory.h b/include/exec/memory.h index 7b0929d..156d506 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -591,11 +591,23 @@ const char *memory_region_name(const MemoryRegion *mr); /** * memory_region_is_logging: return whether a memory region is logging writes * - * Returns %true if the memory region is logging writes + * Returns %true if the memory region is logging writes for the given client * * @mr: the memory region being queried + * @client: the client being queried */ -bool memory_region_is_logging(MemoryRegion *mr); +bool memory_region_is_logging(MemoryRegion *mr, uint8_t client); + +/** + * memory_region_get_dirty_log_mask: return the clients for which a + * memory region is logging writes. + * + * Returns a bitmap of clients, which right now will be either 0 or + * (1 << DIRTY_MEMORY_VGA). + * + * @mr: the memory region being queried + */ +uint8_t memory_region_get_dirty_log_mask(MemoryRegion *mr); /** * memory_region_is_rom: check whether a memory region is ROM |