From 20f5a3029386363357e6fa0c2e82b35ac4914d6a Mon Sep 17 00:00:00 2001 From: Alexander Bulekov Date: Fri, 23 Oct 2020 11:07:33 -0400 Subject: 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 Reviewed-by: Darren Kenny Message-Id: <20201023150746.107063-5-alxndr@bu.edu> [thuth: Reformatted one comment according to the QEMU coding style] Signed-off-by: Thomas Huth --- include/exec/memory.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'include/exec') diff --git a/include/exec/memory.h b/include/exec/memory.h index 042918dd16..93d27bff26 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -42,6 +42,13 @@ typedef struct IOMMUMemoryRegionClass IOMMUMemoryRegionClass; DECLARE_OBJ_CHECKERS(IOMMUMemoryRegion, IOMMUMemoryRegionClass, IOMMU_MEMORY_REGION, TYPE_IOMMU_MEMORY_REGION) +#ifdef CONFIG_FUZZ +void fuzz_dma_read_cb(size_t addr, + size_t len, + MemoryRegion *mr, + bool is_write); +#endif + extern bool global_dirty_log; typedef struct MemoryRegionOps MemoryRegionOps; -- cgit v1.2.3-55-g7522