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google / silifuzz

Apache License 2.0
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Support of SiliFuzz in Intel Skylake (Client) CPUs #7

Closed ElaineYao closed 1 year ago

ElaineYao commented 1 year ago

Hi,

I used the command below to check SiliFuzz's support for my CPU: PLATFORM_ID=$(./tools/silifuzz_platform_id) The output indicates that my Intel Skylake (Client) CPU is unsupported:

E0000 00:00:1696353932.029503  366275 [platform.cc:103](https://github.com/google/silifuzz/blob/346fe5f5eed2427142baa2ef405385f06d3ac89e/util/x86_64/platform.cc#L95)] Unknown Intel platform: family = 6 model = 94 stepping = 3
Unsupported platform

After checking the source code and the Wiki, I found that SiliFuzz supports Intel Skylake (Server) CPUs with model 85.

I wonder if it's possible for SiliFuzz to support Intel Skylake (Client) CPUs with model 94 as well?

ksteuck commented 1 year ago

Hi @ElaineYao,

Client versions of Skylake are not the same as the server in terms of ISA level support so we cannot simply change the code you linked to to read if (model == 85 || model = 94). However, you can make this change in your local repo and the rest of the code will just work. You will need to keep in mind that "Skylake" in your case means Skylake Client and not try to run the same corpus on Skylake Server. We will not be supporting model 94 in the upstream because we don't have access to such machines.