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H A D | memory.c | 48564041a73adbbff52834f9edbe3806fceefab7 Sun Mar 18 17:26:36 UTC 2018 Paolo Bonzini <pbonzini@redhat.com> 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>
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