Re: [PATCH v3] LoongArch: Remove vcsr in loongarch_fpu

From: Jiaxun Yang
Date: Thu Jul 07 2022 - 05:58:22 EST




在 2022/7/7 9:56, WANG Xuerui 写道:

However, the experiment result is counter-intuitive to me after all; are you aware that perhaps *some* 3A5000's in the wild actually have functional VCSR? If so, the state obviously needs isolation (saving/restoring simply becoming no-ops on later steppings), but otherwise this cleanup should be correct.
^ Yep, my concern was 3A5000 with VCSR enabled can be vulnerable.

Thanks
- Jiaxun