e75e2a14d5
Introduce an API numa_get_node(ram_addr_t addr, Error **errp) that returns the NUMA node to which the given address belongs to. This API works uniformly for both boot time as well as hotplugged memory. This API is needed by sPAPR PowerPC to support ibm,dynamic-reconfiguration-memory device tree node which is needed for memory hotplug. Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Tested-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
37 lines
1 KiB
C
37 lines
1 KiB
C
#ifndef SYSEMU_NUMA_H
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#define SYSEMU_NUMA_H
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#include <stdint.h>
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#include "qemu/bitmap.h"
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#include "qemu/option.h"
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#include "sysemu/sysemu.h"
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#include "sysemu/hostmem.h"
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#include "hw/boards.h"
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extern int nb_numa_nodes; /* Number of NUMA nodes */
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struct numa_addr_range {
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ram_addr_t mem_start;
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ram_addr_t mem_end;
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QLIST_ENTRY(numa_addr_range) entry;
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};
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typedef struct node_info {
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uint64_t node_mem;
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DECLARE_BITMAP(node_cpu, MAX_CPUMASK_BITS);
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struct HostMemoryBackend *node_memdev;
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bool present;
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QLIST_HEAD(, numa_addr_range) addr; /* List to store address ranges */
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} NodeInfo;
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extern NodeInfo numa_info[MAX_NODES];
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void parse_numa_opts(MachineClass *mc);
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void numa_post_machine_init(void);
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void query_numa_node_mem(uint64_t node_mem[]);
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extern QemuOptsList qemu_numa_opts;
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void numa_set_mem_node_id(ram_addr_t addr, uint64_t size, uint32_t node);
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void numa_unset_mem_node_id(ram_addr_t addr, uint64_t size, uint32_t node);
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uint32_t numa_get_node(ram_addr_t addr, Error **errp);
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#endif
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