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fuzz: Add DMA support to the generic-fuzzer
When a virtual-device tries to access some buffer in memory over DMA, we add call-backs into the fuzzer(next commit). The fuzzer checks verifies that the DMA request maps to a physical RAM address and fills the memory with fuzzer-provided data. The patterns that we use to fill this memory are specified using add_dma_pattern and clear_dma_patterns operations. Signed-off-by: Alexander Bulekov <alxndr@bu.edu> Reviewed-by: Darren Kenny <darren.kenny@oracle.com> Message-Id: <20201023150746.107063-5-alxndr@bu.edu> [thuth: Reformatted one comment according to the QEMU coding style] Signed-off-by: Thomas Huth <thuth@redhat.com>
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