[PATCH v1 05/20] arm64: context switch POR_EL0 register

[Joey Gouly]

Hi Mark,

On Thu, Oct 05, 2023 at 03:14:50PM +0100, Mark Brown wrote:
> On Wed, Sep 27, 2023 at 03:01:08PM +0100, Joey Gouly wrote:
> 
> > +/* Initial value for Permission Overlay Extension for EL0 */
> > +#define POR_EL0_INIT	UL(0x7)
> 
> Might be useful to explain why this is the default (and possibly also
> define in terms of the constants for POR values)?
> 
> > +static void permission_overlay_switch(struct task_struct *next)
> > +{
> > +	if (alternative_has_cap_unlikely(ARM64_HAS_S1POE)) {
> 
> Why the _unlikely here?

The only options are alternative_has_cap_{likely,unlikely}().
I went with unlikely as currently it is unlikely!

Thanks,
Joey

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