2015-02-08 19:51:16 +01:00
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#ifndef SYSEMU_NUMA_H
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#define SYSEMU_NUMA_H
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#include "qemu/bitmap.h"
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#include "sysemu/sysemu.h"
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#include "sysemu/hostmem.h"
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2015-03-19 18:09:21 +01:00
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#include "hw/boards.h"
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2015-02-08 19:51:16 +01:00
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extern int nb_numa_nodes; /* Number of NUMA nodes */
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numa: Allow setting NUMA distance for different NUMA nodes
This patch is going to add SLIT table support in QEMU, and provides
additional option `dist` for command `-numa` to allow user set vNUMA
distance by QEMU command.
With this patch, when a user wants to create a guest that contains
several vNUMA nodes and also wants to set distance among those nodes,
the QEMU command would like:
```
-numa node,nodeid=0,cpus=0 \
-numa node,nodeid=1,cpus=1 \
-numa node,nodeid=2,cpus=2 \
-numa node,nodeid=3,cpus=3 \
-numa dist,src=0,dst=1,val=21 \
-numa dist,src=0,dst=2,val=31 \
-numa dist,src=0,dst=3,val=41 \
-numa dist,src=1,dst=2,val=21 \
-numa dist,src=1,dst=3,val=31 \
-numa dist,src=2,dst=3,val=21 \
```
Signed-off-by: He Chen <he.chen@linux.intel.com>
Message-Id: <1493260558-20728-1-git-send-email-he.chen@linux.intel.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2017-04-27 04:35:58 +02:00
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extern bool have_numa_distance;
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2015-02-08 19:51:16 +01:00
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2017-05-02 18:29:55 +02:00
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struct node_info {
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2015-02-08 19:51:16 +01:00
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uint64_t node_mem;
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struct HostMemoryBackend *node_memdev;
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bool present;
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numa: Allow setting NUMA distance for different NUMA nodes
This patch is going to add SLIT table support in QEMU, and provides
additional option `dist` for command `-numa` to allow user set vNUMA
distance by QEMU command.
With this patch, when a user wants to create a guest that contains
several vNUMA nodes and also wants to set distance among those nodes,
the QEMU command would like:
```
-numa node,nodeid=0,cpus=0 \
-numa node,nodeid=1,cpus=1 \
-numa node,nodeid=2,cpus=2 \
-numa node,nodeid=3,cpus=3 \
-numa dist,src=0,dst=1,val=21 \
-numa dist,src=0,dst=2,val=31 \
-numa dist,src=0,dst=3,val=41 \
-numa dist,src=1,dst=2,val=21 \
-numa dist,src=1,dst=3,val=31 \
-numa dist,src=2,dst=3,val=21 \
```
Signed-off-by: He Chen <he.chen@linux.intel.com>
Message-Id: <1493260558-20728-1-git-send-email-he.chen@linux.intel.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2017-04-27 04:35:58 +02:00
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uint8_t distance[MAX_NODES];
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2017-05-02 18:29:55 +02:00
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};
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2015-06-29 10:20:25 +02:00
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2017-08-29 17:30:20 +02:00
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struct NumaNodeMem {
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uint64_t node_mem;
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uint64_t node_plugged_mem;
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};
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2015-02-08 19:51:16 +01:00
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extern NodeInfo numa_info[MAX_NODES];
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2018-05-04 10:37:40 +02:00
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int parse_numa(void *opaque, QemuOpts *opts, Error **errp);
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2017-05-10 13:29:45 +02:00
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void parse_numa_opts(MachineState *ms);
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2018-05-04 10:37:39 +02:00
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void numa_complete_configuration(MachineState *ms);
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2017-08-29 17:30:20 +02:00
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void query_numa_node_mem(NumaNodeMem node_mem[]);
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2015-02-08 19:51:16 +01:00
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extern QemuOptsList qemu_numa_opts;
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2017-05-02 18:29:55 +02:00
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void numa_legacy_auto_assign_ram(MachineClass *mc, NodeInfo *nodes,
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int nb_nodes, ram_addr_t size);
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void numa_default_auto_assign_ram(MachineClass *mc, NodeInfo *nodes,
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int nb_nodes, ram_addr_t size);
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2017-05-30 18:23:56 +02:00
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void numa_cpu_pre_plug(const CPUArchId *slot, DeviceState *dev, Error **errp);
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2015-02-08 19:51:16 +01:00
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#endif
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