diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2018-03-18 18:26:36 +0100 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2018-05-09 00:13:38 +0200 |
| commit | 48564041a73adbbff52834f9edbe3806fceefab7 (patch) | |
| tree | 6ea31760c88eaa9d3da36effab22e7d8343ebee2 /include/exec/memory-internal.h | |
| parent | a411c84b561baa94b28165c52f21c33517ee8f59 (diff) | |
exec: reintroduce MemoryRegion caching
MemoryRegionCache was reverted to "normal" address_space_* operations
for 2.9, due to lack of support for IOMMUs. Reinstate the
optimizations, caching only the IOMMU translation at address_cache_init
but not the IOMMU lookup and target AddressSpace translation are not
cached; now that MemoryRegionCache supports IOMMUs, it becomes more widely
applicable too.
The inlined fast path is defined in memory_ldst_cached.inc.h, while the
slow path uses memory_ldst.inc.c as before. The smaller fast path causes
a little code size reduction in MemoryRegionCache users:
hw/virtio/virtio.o text size before: 32373
hw/virtio/virtio.o text size after: 31941
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'include/exec/memory-internal.h')
| -rw-r--r-- | include/exec/memory-internal.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/exec/memory-internal.h b/include/exec/memory-internal.h index 6a5ee42d36..58399b9318 100644 --- a/include/exec/memory-internal.h +++ b/include/exec/memory-internal.h @@ -31,6 +31,9 @@ static inline AddressSpaceDispatch *address_space_to_dispatch(AddressSpace *as) return flatview_to_dispatch(address_space_to_flatview(as)); } +FlatView *address_space_get_flatview(AddressSpace *as); +void flatview_unref(FlatView *view); + extern const MemoryRegionOps unassigned_mem_ops; bool memory_region_access_valid(MemoryRegion *mr, hwaddr addr, |