Re: [PATCH v4 1/3] KVM: arm64: Disable fields that KVM doesn't know how to handle in ID_AA64PFR1_EL1

[Shaoqin Huang]

Hi Oliver,

On 7/18/24 14:09, Oliver Upton wrote:
> Hi Shaoqin,
>
> On Wed, Jul 17, 2024 at 11:50:14PM -0400, Shaoqin Huang wrote:
> > For some of the fields in the ID_AA64PFR1_EL1 register, KVM doesn't know
> > how to handle them right now. So explicitly disable them in the register
> > accessor, then those fields value will be masked to 0 even if on the
> > hardware the field value is 1.
>
> It is probably important to note that the only reason this is safe to do
> from a UAPI POV is that read_sanitised_ftr_reg() doesn't yet return a
> nonzero value for any of these fields.

(Reply again by the plain text)

Yeah. That would be more clear if I tell the reader this information. 
Will add this when updating.

Thanks,
Shaoqin

>

--
Shaoqin