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| author | Paolo Bonzini | 2017-01-27 16:40:16 +0100 |
|---|---|---|
| committer | Michael S. Tsirkin | 2017-02-17 20:52:30 +0100 |
| commit | 5eba0404b98294906134c06519c272bfb5f50453 (patch) | |
| tree | 1b4b5492cd31c96ec473254d751a08e9989f4e3d /include/exec | |
| parent | exec: make address_space_cache_destroy idempotent (diff) | |
| download | qemu-5eba0404b98294906134c06519c272bfb5f50453.tar.gz qemu-5eba0404b98294906134c06519c272bfb5f50453.tar.xz qemu-5eba0404b98294906134c06519c272bfb5f50453.zip | |
virtio: use MemoryRegionCache to access descriptors
For now, the cache is created on every virtqueue_pop. Later on,
direct descriptors will be able to reuse it.
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include/exec')
| -rw-r--r-- | include/exec/memory.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/exec/memory.h b/include/exec/memory.h index 987f9251c6..691102317c 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -1426,6 +1426,8 @@ struct MemoryRegionCache { bool is_write; }; +#define MEMORY_REGION_CACHE_INVALID ((MemoryRegionCache) { .mr = NULL }) + /* address_space_cache_init: prepare for repeated access to a physical * memory region * |