Re: [RFC PATCH v2 08/34] x86/msr: Convert a native_wrmsr() use to native_wrmsrq()

[Xin Li <xin@xxxxxxxxx>]

On 4/23/2025 8:51 AM, Dave Hansen wrote:
> On 4/22/25 01:21, Xin Li (Intel) wrote:
> >   static __always_inline void sev_es_wr_ghcb_msr(u64 val)
> >   {
> > -       u32 low, high;
> > -
> > -       low  = (u32)(val);
> > -       high = (u32)(val >> 32);
> > -
> > -       native_wrmsr(MSR_AMD64_SEV_ES_GHCB, low, high);
> > +       native_wrmsrq(MSR_AMD64_SEV_ES_GHCB, val);
> >   }
> A note on ordering: Had this been a native_wrmsr()=>__wrmsr()
> conversion, it could be sucked into the tree easily before the big
> __wrmsr()=>native_wrmsrq() conversion.
Can't reorder the 2 patches, because __wrmsr() takes two u32 arguments
and the split has to be done explicitly in sev_es_wr_ghcb_msr().

Thanks!
    Xin