Introduce a fuzzer for x86 instruction emulator#6895
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liuw merged 5 commits intocloud-hypervisor:mainfrom Jan 2, 2025
Merged
Introduce a fuzzer for x86 instruction emulator#6895liuw merged 5 commits intocloud-hypervisor:mainfrom
liuw merged 5 commits intocloud-hypervisor:mainfrom
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Signed-off-by: Wei Liu <liuwe@microsoft.com>
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Great addition to the fuzzer set we have. Only two nits below.
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The fastfmt feature and VEX support use techniques that appear to leak memory in the eye of LLVM's address sanitizer. While at it, disable a bunch of instruction set decoding support we never intend to support. Signed-off-by: Wei Liu <liuwe@microsoft.com>
Signed-off-by: Wei Liu <liuwe@microsoft.com>
This will become useful when we build the fuzzing target for the instruction emulator, because there is no need to pull in the rest of the hypervisor crate in that situation. Signed-off-by: Wei Liu <liuwe@microsoft.com>
Signed-off-by: Wei Liu <liuwe@microsoft.com>
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Instruction decoding and emulation is complex. Introduce a fuzzer for it.
The fuzzer has found some issues in integer arithmetic. They are fixed in the same PR.