Re: [Xen-devel] [RFC PATCH v1 16/21] ARM: NUMA: Extract proximity from SRAT table

[Vijay Kilari <vijay.kilari@xxxxxxxxx>]

On Fri, Mar 3, 2017 at 8:52 PM, Jan Beulich <JBeulich@xxxxxxxx> wrote:
>>>> On 03.03.17 at 16:16, <vijay.kilari@xxxxxxxxx> wrote:
>> On Fri, Mar 3, 2017 at 8:22 PM, Julien Grall <julien.grall@xxxxxxx> wrote:
>>> int __init acpi_numa_init(void)
>>> {
>>>         if (!acpi_parse_table(....)) {
>>>                 acpi_table_parse_srat(TYPE_CPU_AFFINITY);
>>
>> This is not defined for ARM. We have to make this also arch specific.
>> So all arch specific code from xen/drivers/acpi/numa.c should be moved
>> to arch specific to xen/arch/x86/srat.c
>
> There surely is a way to specify processor affinity on ARM?

In ARM, we use ACPI_SRAT_TYPE_GICC_AFFINITY type entry in SRAT
to extract cpu to proximity mapping

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