Re: [RFC v2] linux-user/riscv: Add syscall riscv_hwprobe

[Andrew Jones]

On Fri, Jun 02, 2023 at 07:58:30PM -0700, Richard Henderson wrote:
> On 6/2/23 07:02, Andrew Jones wrote:
> > > +struct riscv_hwprobe {
> > > +    int64_t  key;
> > > +    uint64_t value;
> > > +};
> > 
> > The above is all uapi so Linux's arch/riscv/include/uapi/asm/hwprobe.h
> > should be picked up on Linux header update. You'll need to modify the
> > script, scripts/update-linux-headers.sh, to do that by adding a new
> > riscv-specific block. Hacking this by importing the header file manually
> > is fine for an RFC, but that should be a separate patch or part of the
> > syscall define hack patch. And hack patches should be clearly tagged as
> > "NOT FOR MERGE".
> 
> 
> Not true.  linux-user/ never looks at linux-headers/.

Ah, thanks. I should have known better than to try and review a linux-user
patch, since I know almost nothing about it! Is uapi like this usually
duplicated, as was done in this patch?

Thanks,
drew