Commit 31e09b18 authored Sep 01, 2015 by Linda Knippers Committed by Ingo Molnar Sep 02, 2015

x86/mm/srat: Print non-volatile flag in SRAT



With the addition of NVDIMM support, a question came up as to
whether NVDIMM ranges should be in the SRAT with this bit set.
I think the consensus was no because the ranges are in the NFIT
with proximity domain information there.

ACPI is not clear on the meaning of this bit in the SRAT.
If someone is setting it, we might want to ask them what they
expect to happen with it.

Right now this bit is only printed if all the ACPI debug
information is turned on.

Signed-off-by: Linda Knippers <linda.knippers@hp.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20150901194154.GA4939@ljkz400


Signed-off-by: Ingo Molnar <mingo@kernel.org>

parent 0050ae57

arch/x86/mm/srat.c

+3 −2

Original line number	Diff line number	Diff line
		@@ -192,10 +192,11 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)

		node_set(node, numa_nodes_parsed);

		pr_info("SRAT: Node %u PXM %u [mem %#010Lx-%#010Lx]%s\n",
		pr_info("SRAT: Node %u PXM %u [mem %#010Lx-%#010Lx]%s%s\n",
		node, pxm,
		(unsigned long long) start, (unsigned long long) end - 1,
		hotpluggable ? " hotplug" : "");
		hotpluggable ? " hotplug" : "",
		ma->flags & ACPI_SRAT_MEM_NON_VOLATILE ? " non-volatile" : "");

		/* Mark hotplug range in memblock. */
		if (hotpluggable && memblock_mark_hotplug(start, ma->length))

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