Re: [PATCH v20 28/30] LoongArch: KVM: Enable kvm config and add the makefile

[zhaotianrui]

在 2023/9/11 下午3:30, WANG Xuerui 写道:
> On 8/31/23 16:30, Tianrui Zhao wrote:
> > [snip]
> > +
> > +config AS_HAS_LVZ_EXTENSION
> > +    def_bool $(as-instr,hvcl 0)
>
> Upon closer look it looks like this piece could use some improvement 
> as well: while presence of "hvcl" indeed always implies full support 
> for LVZ instructions, "hvcl" however isn't used anywhere in the 
> series, so it's not trivially making sense. It may be better to test 
> for an instruction actually going to be used like "gcsrrd". What do 
> you think?
Thanks for your advice, and I think both "hvcl" and "gcsrrd" 
instructions which are supported by binutils mean that the cpu support 
LVZ extension, so I think they have the same meaning there.

Thanks
Tianrui Zhao