Re: [Xen-devel] [PATCH v2] xen/acpi: upload _PSD info for non Dom0 CPUs too

[Boris Ostrovsky]

On 03/08/2018 05:57 AM, Joao Martins wrote:

> @@ -372,6 +376,15 @@ read_acpi_id(acpi_handle handle, u32 lvl, void *context, void **rv)
>   
>   	pr_debug("ACPI CPU%u w/ PBLK:0x%lx\n", acpi_id, (unsigned long)pblk);
>   
> +	/* It has P-state dependencies */
> +	if (!acpi_processor_get_psd(handle, &acpi_psd[acpi_id])) {
> +		__set_bit(acpi_id, acpi_id_psd_present);
> +
> +		pr_debug("ACPI CPU%u w/ PST:coord_type = %llu domain = %llu\n",
> +			 acpi_id, acpi_psd[acpi_id].coord_type,
> +			 acpi_psd[acpi_id].domain);
> +	}


I should have noticed this earlier, but do you really need 
acpi_id_psd_present? Can you just go by acpi_psd[i] != NULL?

Sorry for missing it in the first patch.

-boris