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generated by cgit v1.2.3 (git 2.25.1) at 2025-10-07 17:17:48 +0000
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/*
 * ACPI 3.0 based NUMA setup
 * Copyright 2004 Andi Kleen, SuSE Labs.
 *
 * Reads the ACPI SRAT table to figure out what memory belongs to which CPUs.
 *
 * Called from acpi_numa_init while reading the SRAT and SLIT tables.
 * Assumes all memory regions belonging to a single proximity domain
 * are in one chunk. Holes between them will be included in the node.
 * 
 * Adapted for Xen: Ryan Harper <ryanh@us.ibm.com>
 */

#include <xen/init.h>
#include <xen/mm.h>
#include <xen/inttypes.h>
#include <xen/nodemask.h>
#include <xen/acpi.h>
#include <xen/numa.h>
#include <asm/page.h>

static struct acpi_table_slit *acpi_slit;

static nodemask_t nodes_parsed __initdata;
static nodemask_t nodes_found __initdata;
static struct node nodes[MAX_NUMNODES] __initdata;
static u8 pxm2node[256] = { [0 ... 255] = 0xff };

/* Too small nodes confuse the VM badly. Usually they result
   from BIOS bugs. */
#define NODE_MIN_SIZE (4*1024*1024)

static int node_to_pxm(int n);