Re: [PATCH V2 03/14] x86/set_memory: Add x86_set_memory_enc static call support
From: Dave Hansen
Date: Thu Aug 05 2021 - 10:29:37 EST
On 8/5/21 7:23 AM, Peter Zijlstra wrote:
> This is assuming any of this is actually performance critical, based off
> of this using static_call() to begin with.
This code is not performance critical.
I think I sent folks off on a wild goose chase when I asked that we make
an effort to optimize code that does:
with checks that will actually compile away when Hyper-V or
some_amd_feature() is disabled. That's less about performance and just
about good hygiene. I *wanted* to see
Someone suggested using static calls, and off we went...
Could we please just use cpu_feature_enabled()?