Re: [PATCH 5/7] mips: bpf: Add JIT workarounds for CPU errata

在 2021/10/5 17:54, Johan Almbladh 写道:

This patch adds workarounds for the following CPU errata to the MIPS
eBPF JIT, if enabled in the kernel configuration.

   - R10000 ll/sc weak ordering
   - Loongson-3 ll/sc weak ordering
   - Loongson-2F jump hang

The Loongson-2F nop errata is implemented in uasm, which the JIT uses,
so no additional mitigations are needed for that.

Signed-off-by: Johan Almbladh <johan.almbladh@anyfinetworks.com>

Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>

Thanks!

- Jiaxun

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