2014-05-14 17:43:05 +08:00
|
|
|
/*
|
|
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* NUMA parameter parsing routines
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*
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* Copyright (c) 2014 Fujitsu Ltd.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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2015-02-09 02:51:16 +08:00
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#include "sysemu/numa.h"
|
2014-05-14 17:43:05 +08:00
|
|
|
#include "exec/cpu-common.h"
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|
|
#include "qemu/bitmap.h"
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|
|
|
#include "qom/cpu.h"
|
2014-05-14 17:43:06 +08:00
|
|
|
#include "qemu/error-report.h"
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|
|
#include "include/exec/cpu-common.h" /* for RAM_ADDR_FMT */
|
2014-05-14 17:43:08 +08:00
|
|
|
#include "qapi-visit.h"
|
|
|
|
#include "qapi/opts-visitor.h"
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|
|
|
#include "qapi/dealloc-visitor.h"
|
2014-05-14 17:43:15 +08:00
|
|
|
#include "hw/boards.h"
|
numa: add -numa node,memdev= option
This option provides the infrastructure for binding guest NUMA nodes
to host NUMA nodes. For example:
-object memory-ram,size=1024M,policy=bind,host-nodes=0,id=ram-node0 \
-numa node,nodeid=0,cpus=0,memdev=ram-node0 \
-object memory-ram,size=1024M,policy=interleave,host-nodes=1-3,id=ram-node1 \
-numa node,nodeid=1,cpus=1,memdev=ram-node1
The option replaces "-numa node,mem=".
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
MST: conflict resolution
2014-05-14 17:43:17 +08:00
|
|
|
#include "sysemu/hostmem.h"
|
2014-06-16 18:05:41 +08:00
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|
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#include "qmp-commands.h"
|
2014-11-04 19:49:30 +08:00
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|
#include "hw/mem/pc-dimm.h"
|
2015-02-09 02:51:20 +08:00
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#include "qemu/option.h"
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|
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#include "qemu/config-file.h"
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2014-05-14 17:43:08 +08:00
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QemuOptsList qemu_numa_opts = {
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|
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.name = "numa",
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|
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.implied_opt_name = "type",
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|
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.head = QTAILQ_HEAD_INITIALIZER(qemu_numa_opts.head),
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|
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.desc = { { 0 } } /* validated with OptsVisitor */
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|
|
};
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|
|
|
|
numa: add -numa node,memdev= option
This option provides the infrastructure for binding guest NUMA nodes
to host NUMA nodes. For example:
-object memory-ram,size=1024M,policy=bind,host-nodes=0,id=ram-node0 \
-numa node,nodeid=0,cpus=0,memdev=ram-node0 \
-object memory-ram,size=1024M,policy=interleave,host-nodes=1-3,id=ram-node1 \
-numa node,nodeid=1,cpus=1,memdev=ram-node1
The option replaces "-numa node,mem=".
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
MST: conflict resolution
2014-05-14 17:43:17 +08:00
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|
|
static int have_memdevs = -1;
|
2015-02-09 02:51:19 +08:00
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static int max_numa_nodeid; /* Highest specified NUMA node ID, plus one.
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* For all nodes, nodeid < max_numa_nodeid
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*/
|
2015-02-09 02:51:18 +08:00
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|
|
int nb_numa_nodes;
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|
|
NodeInfo numa_info[MAX_NODES];
|
numa: add -numa node,memdev= option
This option provides the infrastructure for binding guest NUMA nodes
to host NUMA nodes. For example:
-object memory-ram,size=1024M,policy=bind,host-nodes=0,id=ram-node0 \
-numa node,nodeid=0,cpus=0,memdev=ram-node0 \
-object memory-ram,size=1024M,policy=interleave,host-nodes=1-3,id=ram-node1 \
-numa node,nodeid=1,cpus=1,memdev=ram-node1
The option replaces "-numa node,mem=".
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
MST: conflict resolution
2014-05-14 17:43:17 +08:00
|
|
|
|
2015-06-29 16:20:25 +08:00
|
|
|
void numa_set_mem_node_id(ram_addr_t addr, uint64_t size, uint32_t node)
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|
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{
|
2015-07-09 23:27:36 +08:00
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|
|
struct numa_addr_range *range;
|
2015-06-29 16:20:25 +08:00
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|
2015-06-29 16:20:26 +08:00
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|
|
/*
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|
|
* Memory-less nodes can come here with 0 size in which case,
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|
|
* there is nothing to do.
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|
|
*/
|
|
|
|
if (!size) {
|
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|
|
return;
|
|
|
|
}
|
|
|
|
|
2015-07-09 23:27:36 +08:00
|
|
|
range = g_malloc0(sizeof(*range));
|
2015-06-29 16:20:25 +08:00
|
|
|
range->mem_start = addr;
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|
|
range->mem_end = addr + size - 1;
|
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|
|
QLIST_INSERT_HEAD(&numa_info[node].addr, range, entry);
|
|
|
|
}
|
|
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|
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|
|
void numa_unset_mem_node_id(ram_addr_t addr, uint64_t size, uint32_t node)
|
|
|
|
{
|
|
|
|
struct numa_addr_range *range, *next;
|
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|
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|
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|
|
QLIST_FOREACH_SAFE(range, &numa_info[node].addr, entry, next) {
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|
|
if (addr == range->mem_start && (addr + size - 1) == range->mem_end) {
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|
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QLIST_REMOVE(range, entry);
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|
|
g_free(range);
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|
|
return;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
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|
|
2015-06-29 16:20:26 +08:00
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|
|
static void numa_set_mem_ranges(void)
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|
|
{
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|
|
int i;
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|
|
ram_addr_t mem_start = 0;
|
|
|
|
|
|
|
|
/*
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|
|
|
* Deduce start address of each node and use it to store
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|
|
* the address range info in numa_info address range list
|
|
|
|
*/
|
|
|
|
for (i = 0; i < nb_numa_nodes; i++) {
|
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|
|
numa_set_mem_node_id(mem_start, numa_info[i].node_mem, i);
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|
|
mem_start += numa_info[i].node_mem;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2015-06-29 16:20:27 +08:00
|
|
|
/*
|
|
|
|
* Check if @addr falls under NUMA @node.
|
|
|
|
*/
|
|
|
|
static bool numa_addr_belongs_to_node(ram_addr_t addr, uint32_t node)
|
|
|
|
{
|
|
|
|
struct numa_addr_range *range;
|
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|
|
|
|
|
|
QLIST_FOREACH(range, &numa_info[node].addr, entry) {
|
|
|
|
if (addr >= range->mem_start && addr <= range->mem_end) {
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Given an address, return the index of the NUMA node to which the
|
|
|
|
* address belongs to.
|
|
|
|
*/
|
|
|
|
uint32_t numa_get_node(ram_addr_t addr, Error **errp)
|
|
|
|
{
|
|
|
|
uint32_t i;
|
|
|
|
|
|
|
|
/* For non NUMA configurations, check if the addr falls under node 0 */
|
|
|
|
if (!nb_numa_nodes) {
|
|
|
|
if (numa_addr_belongs_to_node(addr, 0)) {
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
for (i = 0; i < nb_numa_nodes; i++) {
|
|
|
|
if (numa_addr_belongs_to_node(addr, i)) {
|
|
|
|
return i;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
error_setg(errp, "Address 0x" RAM_ADDR_FMT " doesn't belong to any "
|
|
|
|
"NUMA node", addr);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
2014-05-14 17:43:08 +08:00
|
|
|
static void numa_node_parse(NumaNodeOptions *node, QemuOpts *opts, Error **errp)
|
2014-05-14 17:43:05 +08:00
|
|
|
{
|
2014-05-14 17:43:08 +08:00
|
|
|
uint16_t nodenr;
|
|
|
|
uint16List *cpus = NULL;
|
2014-05-14 17:43:05 +08:00
|
|
|
|
2014-05-14 17:43:08 +08:00
|
|
|
if (node->has_nodeid) {
|
|
|
|
nodenr = node->nodeid;
|
2014-05-14 17:43:05 +08:00
|
|
|
} else {
|
2014-05-14 17:43:08 +08:00
|
|
|
nodenr = nb_numa_nodes;
|
2014-05-14 17:43:05 +08:00
|
|
|
}
|
|
|
|
|
2014-05-14 17:43:08 +08:00
|
|
|
if (nodenr >= MAX_NODES) {
|
|
|
|
error_setg(errp, "Max number of NUMA nodes reached: %"
|
2015-02-25 12:22:30 +08:00
|
|
|
PRIu16 "", nodenr);
|
2014-05-14 17:43:08 +08:00
|
|
|
return;
|
2014-05-14 17:43:05 +08:00
|
|
|
}
|
|
|
|
|
2014-06-27 05:33:19 +08:00
|
|
|
if (numa_info[nodenr].present) {
|
|
|
|
error_setg(errp, "Duplicate NUMA nodeid: %" PRIu16, nodenr);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2014-05-14 17:43:08 +08:00
|
|
|
for (cpus = node->cpus; cpus; cpus = cpus->next) {
|
2015-02-10 03:28:52 +08:00
|
|
|
if (cpus->value >= max_cpus) {
|
|
|
|
error_setg(errp,
|
|
|
|
"CPU index (%" PRIu16 ")"
|
|
|
|
" should be smaller than maxcpus (%d)",
|
|
|
|
cpus->value, max_cpus);
|
2014-05-14 17:43:08 +08:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
bitmap_set(numa_info[nodenr].node_cpu, cpus->value, 1);
|
2014-05-14 17:43:05 +08:00
|
|
|
}
|
|
|
|
|
numa: add -numa node,memdev= option
This option provides the infrastructure for binding guest NUMA nodes
to host NUMA nodes. For example:
-object memory-ram,size=1024M,policy=bind,host-nodes=0,id=ram-node0 \
-numa node,nodeid=0,cpus=0,memdev=ram-node0 \
-object memory-ram,size=1024M,policy=interleave,host-nodes=1-3,id=ram-node1 \
-numa node,nodeid=1,cpus=1,memdev=ram-node1
The option replaces "-numa node,mem=".
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
MST: conflict resolution
2014-05-14 17:43:17 +08:00
|
|
|
if (node->has_mem && node->has_memdev) {
|
2015-02-25 12:22:30 +08:00
|
|
|
error_setg(errp, "qemu: cannot specify both mem= and memdev=");
|
numa: add -numa node,memdev= option
This option provides the infrastructure for binding guest NUMA nodes
to host NUMA nodes. For example:
-object memory-ram,size=1024M,policy=bind,host-nodes=0,id=ram-node0 \
-numa node,nodeid=0,cpus=0,memdev=ram-node0 \
-object memory-ram,size=1024M,policy=interleave,host-nodes=1-3,id=ram-node1 \
-numa node,nodeid=1,cpus=1,memdev=ram-node1
The option replaces "-numa node,mem=".
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
MST: conflict resolution
2014-05-14 17:43:17 +08:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (have_memdevs == -1) {
|
|
|
|
have_memdevs = node->has_memdev;
|
|
|
|
}
|
|
|
|
if (node->has_memdev != have_memdevs) {
|
|
|
|
error_setg(errp, "qemu: memdev option must be specified for either "
|
2015-02-25 12:22:30 +08:00
|
|
|
"all or no nodes");
|
numa: add -numa node,memdev= option
This option provides the infrastructure for binding guest NUMA nodes
to host NUMA nodes. For example:
-object memory-ram,size=1024M,policy=bind,host-nodes=0,id=ram-node0 \
-numa node,nodeid=0,cpus=0,memdev=ram-node0 \
-object memory-ram,size=1024M,policy=interleave,host-nodes=1-3,id=ram-node1 \
-numa node,nodeid=1,cpus=1,memdev=ram-node1
The option replaces "-numa node,mem=".
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
MST: conflict resolution
2014-05-14 17:43:17 +08:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2014-05-14 17:43:08 +08:00
|
|
|
if (node->has_mem) {
|
|
|
|
uint64_t mem_size = node->mem;
|
|
|
|
const char *mem_str = qemu_opt_get(opts, "mem");
|
|
|
|
/* Fix up legacy suffix-less format */
|
|
|
|
if (g_ascii_isdigit(mem_str[strlen(mem_str) - 1])) {
|
|
|
|
mem_size <<= 20;
|
|
|
|
}
|
|
|
|
numa_info[nodenr].node_mem = mem_size;
|
|
|
|
}
|
numa: add -numa node,memdev= option
This option provides the infrastructure for binding guest NUMA nodes
to host NUMA nodes. For example:
-object memory-ram,size=1024M,policy=bind,host-nodes=0,id=ram-node0 \
-numa node,nodeid=0,cpus=0,memdev=ram-node0 \
-object memory-ram,size=1024M,policy=interleave,host-nodes=1-3,id=ram-node1 \
-numa node,nodeid=1,cpus=1,memdev=ram-node1
The option replaces "-numa node,mem=".
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
MST: conflict resolution
2014-05-14 17:43:17 +08:00
|
|
|
if (node->has_memdev) {
|
|
|
|
Object *o;
|
|
|
|
o = object_resolve_path_type(node->memdev, TYPE_MEMORY_BACKEND, NULL);
|
|
|
|
if (!o) {
|
|
|
|
error_setg(errp, "memdev=%s is ambiguous", node->memdev);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
object_ref(o);
|
|
|
|
numa_info[nodenr].node_mem = object_property_get_int(o, "size", NULL);
|
|
|
|
numa_info[nodenr].node_memdev = MEMORY_BACKEND(o);
|
|
|
|
}
|
2014-06-27 05:33:18 +08:00
|
|
|
numa_info[nodenr].present = true;
|
|
|
|
max_numa_nodeid = MAX(max_numa_nodeid, nodenr + 1);
|
2014-05-14 17:43:05 +08:00
|
|
|
}
|
|
|
|
|
2015-03-13 20:35:14 +08:00
|
|
|
static int parse_numa(void *opaque, QemuOpts *opts, Error **errp)
|
2014-05-14 17:43:05 +08:00
|
|
|
{
|
2014-05-14 17:43:08 +08:00
|
|
|
NumaOptions *object = NULL;
|
|
|
|
Error *err = NULL;
|
2014-05-14 17:43:05 +08:00
|
|
|
|
2014-05-14 17:43:08 +08:00
|
|
|
{
|
|
|
|
OptsVisitor *ov = opts_visitor_new(opts);
|
|
|
|
visit_type_NumaOptions(opts_get_visitor(ov), &object, NULL, &err);
|
|
|
|
opts_visitor_cleanup(ov);
|
2014-05-14 17:43:05 +08:00
|
|
|
}
|
|
|
|
|
2014-05-14 17:43:08 +08:00
|
|
|
if (err) {
|
|
|
|
goto error;
|
|
|
|
}
|
2014-05-14 17:43:05 +08:00
|
|
|
|
2015-10-27 06:34:59 +08:00
|
|
|
switch (object->type) {
|
2014-05-14 17:43:08 +08:00
|
|
|
case NUMA_OPTIONS_KIND_NODE:
|
2015-10-27 06:34:59 +08:00
|
|
|
numa_node_parse(object->u.node, opts, &err);
|
2014-05-14 17:43:08 +08:00
|
|
|
if (err) {
|
|
|
|
goto error;
|
2014-05-14 17:43:05 +08:00
|
|
|
}
|
2014-05-14 17:43:08 +08:00
|
|
|
nb_numa_nodes++;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
abort();
|
|
|
|
}
|
2014-05-14 17:43:05 +08:00
|
|
|
|
2014-05-14 17:43:08 +08:00
|
|
|
return 0;
|
2014-05-14 17:43:05 +08:00
|
|
|
|
2014-05-14 17:43:08 +08:00
|
|
|
error:
|
2015-02-10 22:06:23 +08:00
|
|
|
error_report_err(err);
|
2014-05-14 17:43:08 +08:00
|
|
|
|
|
|
|
if (object) {
|
|
|
|
QapiDeallocVisitor *dv = qapi_dealloc_visitor_new();
|
|
|
|
visit_type_NumaOptions(qapi_dealloc_get_visitor(dv),
|
|
|
|
&object, NULL, NULL);
|
|
|
|
qapi_dealloc_visitor_cleanup(dv);
|
2014-05-14 17:43:05 +08:00
|
|
|
}
|
2014-05-14 17:43:08 +08:00
|
|
|
|
|
|
|
return -1;
|
2014-05-14 17:43:05 +08:00
|
|
|
}
|
|
|
|
|
2015-02-10 03:32:04 +08:00
|
|
|
static char *enumerate_cpus(unsigned long *cpus, int max_cpus)
|
|
|
|
{
|
|
|
|
int cpu;
|
|
|
|
bool first = true;
|
|
|
|
GString *s = g_string_new(NULL);
|
|
|
|
|
|
|
|
for (cpu = find_first_bit(cpus, max_cpus);
|
|
|
|
cpu < max_cpus;
|
|
|
|
cpu = find_next_bit(cpus, max_cpus, cpu + 1)) {
|
|
|
|
g_string_append_printf(s, "%s%d", first ? "" : " ", cpu);
|
|
|
|
first = false;
|
|
|
|
}
|
|
|
|
return g_string_free(s, FALSE);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void validate_numa_cpus(void)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
DECLARE_BITMAP(seen_cpus, MAX_CPUMASK_BITS);
|
|
|
|
|
|
|
|
bitmap_zero(seen_cpus, MAX_CPUMASK_BITS);
|
|
|
|
for (i = 0; i < nb_numa_nodes; i++) {
|
|
|
|
if (bitmap_intersects(seen_cpus, numa_info[i].node_cpu,
|
|
|
|
MAX_CPUMASK_BITS)) {
|
|
|
|
bitmap_and(seen_cpus, seen_cpus,
|
|
|
|
numa_info[i].node_cpu, MAX_CPUMASK_BITS);
|
|
|
|
error_report("CPU(s) present in multiple NUMA nodes: %s",
|
2015-08-26 19:17:12 +08:00
|
|
|
enumerate_cpus(seen_cpus, max_cpus));
|
2015-02-10 03:32:04 +08:00
|
|
|
exit(EXIT_FAILURE);
|
|
|
|
}
|
|
|
|
bitmap_or(seen_cpus, seen_cpus,
|
|
|
|
numa_info[i].node_cpu, MAX_CPUMASK_BITS);
|
|
|
|
}
|
numa: Print warning if no node is assigned to a CPU
We need all possible CPUs (including hotplug ones) to be present in the
SRAT when QEMU starts. QEMU already does that correctly today, the only
problem is that when a CPU is omitted from the NUMA configuration, it is
silently assigned to node 0.
Check if all CPUs up to max_cpus are present in the NUMA configuration
and warn about missing CPUs.
Make it just a warning, to allow management software to be updated if
necessary. In the future we may make it a fatal error instead.
Command-line examples:
* Correct, no warning:
$ qemu-system-x86_64 -smp 2,maxcpus=4
$ qemu-system-x86_64 -smp 2,maxcpus=4 -numa node,cpus=0-3
* Incomplete, with warnings:
$ qemu-system-x86_64 -smp 2,maxcpus=4 -numa node,cpus=0
qemu-system-x86_64: warning: CPU(s) not present in any NUMA nodes: 1 2 3
qemu-system-x86_64: warning: All CPU(s) up to maxcpus should be described in NUMA config
$ qemu-system-x86_64 -smp 2,maxcpus=4 -numa node,cpus=0-2
qemu-system-x86_64: warning: CPU(s) not present in any NUMA nodes: 3
qemu-system-x86_64: warning: All CPU(s) up to maxcpus should be described in NUMA config
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
---
v1 -> v2: (no changes)
v2 -> v3:
* Use enumerate_cpus() and error_report() for error message
* Simplify logic using bitmap_full()
v3 -> v4:
* Clarify error message, mention that all CPUs up to
maxcpus need to be described in NUMA config
v4 -> v5:
* Commit log update, to make problem description clearer
2015-02-10 03:35:04 +08:00
|
|
|
|
|
|
|
if (!bitmap_full(seen_cpus, max_cpus)) {
|
|
|
|
char *msg;
|
|
|
|
bitmap_complement(seen_cpus, seen_cpus, max_cpus);
|
|
|
|
msg = enumerate_cpus(seen_cpus, max_cpus);
|
|
|
|
error_report("warning: CPU(s) not present in any NUMA nodes: %s", msg);
|
|
|
|
error_report("warning: All CPU(s) up to maxcpus should be described "
|
|
|
|
"in NUMA config");
|
|
|
|
g_free(msg);
|
|
|
|
}
|
2015-02-10 03:32:04 +08:00
|
|
|
}
|
|
|
|
|
2015-03-20 01:09:21 +08:00
|
|
|
void parse_numa_opts(MachineClass *mc)
|
2014-05-14 17:43:05 +08:00
|
|
|
{
|
2014-06-27 05:33:20 +08:00
|
|
|
int i;
|
|
|
|
|
2015-03-13 20:35:14 +08:00
|
|
|
if (qemu_opts_foreach(qemu_find_opts("numa"), parse_numa, NULL, NULL)) {
|
2015-02-09 02:51:20 +08:00
|
|
|
exit(1);
|
|
|
|
}
|
|
|
|
|
2014-06-27 05:33:20 +08:00
|
|
|
assert(max_numa_nodeid <= MAX_NODES);
|
|
|
|
|
|
|
|
/* No support for sparse NUMA node IDs yet: */
|
|
|
|
for (i = max_numa_nodeid - 1; i >= 0; i--) {
|
|
|
|
/* Report large node IDs first, to make mistakes easier to spot */
|
|
|
|
if (!numa_info[i].present) {
|
|
|
|
error_report("numa: Node ID missing: %d", i);
|
|
|
|
exit(1);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* This must be always true if all nodes are present: */
|
|
|
|
assert(nb_numa_nodes == max_numa_nodeid);
|
|
|
|
|
2014-05-14 17:43:05 +08:00
|
|
|
if (nb_numa_nodes > 0) {
|
2014-05-14 17:43:06 +08:00
|
|
|
uint64_t numa_total;
|
2014-05-14 17:43:05 +08:00
|
|
|
|
|
|
|
if (nb_numa_nodes > MAX_NODES) {
|
|
|
|
nb_numa_nodes = MAX_NODES;
|
|
|
|
}
|
|
|
|
|
2014-06-24 13:50:30 +08:00
|
|
|
/* If no memory size is given for any node, assume the default case
|
2014-05-14 17:43:05 +08:00
|
|
|
* and distribute the available memory equally across all nodes
|
|
|
|
*/
|
|
|
|
for (i = 0; i < nb_numa_nodes; i++) {
|
2014-05-14 17:43:07 +08:00
|
|
|
if (numa_info[i].node_mem != 0) {
|
2014-05-14 17:43:05 +08:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (i == nb_numa_nodes) {
|
|
|
|
uint64_t usedmem = 0;
|
|
|
|
|
2014-06-24 12:43:37 +08:00
|
|
|
/* On Linux, each node's border has to be 8MB aligned,
|
2014-05-14 17:43:05 +08:00
|
|
|
* the final node gets the rest.
|
|
|
|
*/
|
|
|
|
for (i = 0; i < nb_numa_nodes - 1; i++) {
|
2014-05-14 17:43:07 +08:00
|
|
|
numa_info[i].node_mem = (ram_size / nb_numa_nodes) &
|
|
|
|
~((1 << 23UL) - 1);
|
|
|
|
usedmem += numa_info[i].node_mem;
|
2014-05-14 17:43:05 +08:00
|
|
|
}
|
2014-05-14 17:43:07 +08:00
|
|
|
numa_info[i].node_mem = ram_size - usedmem;
|
2014-05-14 17:43:05 +08:00
|
|
|
}
|
|
|
|
|
2014-05-14 17:43:06 +08:00
|
|
|
numa_total = 0;
|
|
|
|
for (i = 0; i < nb_numa_nodes; i++) {
|
2014-05-14 17:43:07 +08:00
|
|
|
numa_total += numa_info[i].node_mem;
|
2014-05-14 17:43:06 +08:00
|
|
|
}
|
|
|
|
if (numa_total != ram_size) {
|
2014-08-04 16:16:09 +08:00
|
|
|
error_report("total memory for NUMA nodes (0x%" PRIx64 ")"
|
|
|
|
" should equal RAM size (0x" RAM_ADDR_FMT ")",
|
2014-05-14 17:43:06 +08:00
|
|
|
numa_total, ram_size);
|
|
|
|
exit(1);
|
|
|
|
}
|
|
|
|
|
2015-06-29 16:20:25 +08:00
|
|
|
for (i = 0; i < nb_numa_nodes; i++) {
|
|
|
|
QLIST_INIT(&numa_info[i].addr);
|
|
|
|
}
|
|
|
|
|
2015-06-29 16:20:26 +08:00
|
|
|
numa_set_mem_ranges();
|
|
|
|
|
2014-05-14 17:43:05 +08:00
|
|
|
for (i = 0; i < nb_numa_nodes; i++) {
|
2014-05-14 17:43:07 +08:00
|
|
|
if (!bitmap_empty(numa_info[i].node_cpu, MAX_CPUMASK_BITS)) {
|
2014-05-14 17:43:05 +08:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
2015-03-20 01:09:21 +08:00
|
|
|
/* Historically VCPUs were assigned in round-robin order to NUMA
|
|
|
|
* nodes. However it causes issues with guest not handling it nice
|
|
|
|
* in case where cores/threads from a multicore CPU appear on
|
|
|
|
* different nodes. So allow boards to override default distribution
|
|
|
|
* rule grouping VCPUs by socket so that VCPUs from the same socket
|
|
|
|
* would be on the same node.
|
2014-05-14 17:43:05 +08:00
|
|
|
*/
|
|
|
|
if (i == nb_numa_nodes) {
|
|
|
|
for (i = 0; i < max_cpus; i++) {
|
2015-03-20 01:09:21 +08:00
|
|
|
unsigned node_id = i % nb_numa_nodes;
|
|
|
|
if (mc->cpu_index_to_socket_id) {
|
|
|
|
node_id = mc->cpu_index_to_socket_id(i) % nb_numa_nodes;
|
|
|
|
}
|
|
|
|
|
|
|
|
set_bit(i, numa_info[node_id].node_cpu);
|
2014-05-14 17:43:05 +08:00
|
|
|
}
|
|
|
|
}
|
2015-02-10 03:32:04 +08:00
|
|
|
|
|
|
|
validate_numa_cpus();
|
2015-06-29 16:20:26 +08:00
|
|
|
} else {
|
|
|
|
numa_set_mem_node_id(0, ram_size, 0);
|
2014-05-14 17:43:05 +08:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2015-02-09 02:51:22 +08:00
|
|
|
void numa_post_machine_init(void)
|
2014-05-14 17:43:05 +08:00
|
|
|
{
|
|
|
|
CPUState *cpu;
|
|
|
|
int i;
|
|
|
|
|
|
|
|
CPU_FOREACH(cpu) {
|
|
|
|
for (i = 0; i < nb_numa_nodes; i++) {
|
2014-05-14 17:43:07 +08:00
|
|
|
if (test_bit(cpu->cpu_index, numa_info[i].node_cpu)) {
|
2014-05-14 17:43:05 +08:00
|
|
|
cpu->numa_node = i;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2014-05-14 17:43:15 +08:00
|
|
|
|
numa: add -numa node,memdev= option
This option provides the infrastructure for binding guest NUMA nodes
to host NUMA nodes. For example:
-object memory-ram,size=1024M,policy=bind,host-nodes=0,id=ram-node0 \
-numa node,nodeid=0,cpus=0,memdev=ram-node0 \
-object memory-ram,size=1024M,policy=interleave,host-nodes=1-3,id=ram-node1 \
-numa node,nodeid=1,cpus=1,memdev=ram-node1
The option replaces "-numa node,mem=".
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
MST: conflict resolution
2014-05-14 17:43:17 +08:00
|
|
|
static void allocate_system_memory_nonnuma(MemoryRegion *mr, Object *owner,
|
|
|
|
const char *name,
|
|
|
|
uint64_t ram_size)
|
|
|
|
{
|
2014-05-14 17:43:19 +08:00
|
|
|
if (mem_path) {
|
|
|
|
#ifdef __linux__
|
2014-05-14 17:43:20 +08:00
|
|
|
Error *err = NULL;
|
2014-06-10 19:15:24 +08:00
|
|
|
memory_region_init_ram_from_file(mr, owner, name, ram_size, false,
|
2014-05-14 17:43:20 +08:00
|
|
|
mem_path, &err);
|
|
|
|
|
|
|
|
/* Legacy behavior: if allocation failed, fall back to
|
|
|
|
* regular RAM allocation.
|
|
|
|
*/
|
2014-06-17 18:17:05 +08:00
|
|
|
if (err) {
|
2015-02-10 22:06:23 +08:00
|
|
|
error_report_err(err);
|
Fix bad error handling after memory_region_init_ram()
Symptom:
$ qemu-system-x86_64 -m 10000000
Unexpected error in ram_block_add() at /work/armbru/qemu/exec.c:1456:
upstream-qemu: cannot set up guest memory 'pc.ram': Cannot allocate memory
Aborted (core dumped)
Root cause: commit ef701d7 screwed up handling of out-of-memory
conditions. Before the commit, we report the error and exit(1), in
one place, ram_block_add(). The commit lifts the error handling up
the call chain some, to three places. Fine. Except it uses
&error_abort in these places, changing the behavior from exit(1) to
abort(), and thus undoing the work of commit 3922825 "exec: Don't
abort when we can't allocate guest memory".
The three places are:
* memory_region_init_ram()
Commit 4994653 (right after commit ef701d7) lifted the error
handling further, through memory_region_init_ram(), multiplying the
incorrect use of &error_abort. Later on, imitation of existing
(bad) code may have created more.
* memory_region_init_ram_ptr()
The &error_abort is still there.
* memory_region_init_rom_device()
Doesn't need fixing, because commit 33e0eb5 (soon after commit
ef701d7) lifted the error handling further, and in the process
changed it from &error_abort to passing it up the call chain.
Correct, because the callers are realize() methods.
Fix the error handling after memory_region_init_ram() with a
Coccinelle semantic patch:
@r@
expression mr, owner, name, size, err;
position p;
@@
memory_region_init_ram(mr, owner, name, size,
(
- &error_abort
+ &error_fatal
|
err@p
)
);
@script:python@
p << r.p;
@@
print "%s:%s:%s" % (p[0].file, p[0].line, p[0].column)
When the last argument is &error_abort, it gets replaced by
&error_fatal. This is the fix.
If the last argument is anything else, its position is reported. This
lets us check the fix is complete. Four positions get reported:
* ram_backend_memory_alloc()
Error is passed up the call chain, ultimately through
user_creatable_complete(). As far as I can tell, it's callers all
handle the error sanely.
* fsl_imx25_realize(), fsl_imx31_realize(), dp8393x_realize()
DeviceClass.realize() methods, errors handled sanely further up the
call chain.
We're good. Test case again behaves:
$ qemu-system-x86_64 -m 10000000
qemu-system-x86_64: cannot set up guest memory 'pc.ram': Cannot allocate memory
[Exit 1 ]
The next commits will repair the rest of commit ef701d7's damage.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1441983105-26376-3-git-send-email-armbru@redhat.com>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
2015-09-11 22:51:43 +08:00
|
|
|
memory_region_init_ram(mr, owner, name, ram_size, &error_fatal);
|
2014-05-14 17:43:20 +08:00
|
|
|
}
|
2014-05-14 17:43:19 +08:00
|
|
|
#else
|
|
|
|
fprintf(stderr, "-mem-path not supported on this host\n");
|
|
|
|
exit(1);
|
|
|
|
#endif
|
|
|
|
} else {
|
Fix bad error handling after memory_region_init_ram()
Symptom:
$ qemu-system-x86_64 -m 10000000
Unexpected error in ram_block_add() at /work/armbru/qemu/exec.c:1456:
upstream-qemu: cannot set up guest memory 'pc.ram': Cannot allocate memory
Aborted (core dumped)
Root cause: commit ef701d7 screwed up handling of out-of-memory
conditions. Before the commit, we report the error and exit(1), in
one place, ram_block_add(). The commit lifts the error handling up
the call chain some, to three places. Fine. Except it uses
&error_abort in these places, changing the behavior from exit(1) to
abort(), and thus undoing the work of commit 3922825 "exec: Don't
abort when we can't allocate guest memory".
The three places are:
* memory_region_init_ram()
Commit 4994653 (right after commit ef701d7) lifted the error
handling further, through memory_region_init_ram(), multiplying the
incorrect use of &error_abort. Later on, imitation of existing
(bad) code may have created more.
* memory_region_init_ram_ptr()
The &error_abort is still there.
* memory_region_init_rom_device()
Doesn't need fixing, because commit 33e0eb5 (soon after commit
ef701d7) lifted the error handling further, and in the process
changed it from &error_abort to passing it up the call chain.
Correct, because the callers are realize() methods.
Fix the error handling after memory_region_init_ram() with a
Coccinelle semantic patch:
@r@
expression mr, owner, name, size, err;
position p;
@@
memory_region_init_ram(mr, owner, name, size,
(
- &error_abort
+ &error_fatal
|
err@p
)
);
@script:python@
p << r.p;
@@
print "%s:%s:%s" % (p[0].file, p[0].line, p[0].column)
When the last argument is &error_abort, it gets replaced by
&error_fatal. This is the fix.
If the last argument is anything else, its position is reported. This
lets us check the fix is complete. Four positions get reported:
* ram_backend_memory_alloc()
Error is passed up the call chain, ultimately through
user_creatable_complete(). As far as I can tell, it's callers all
handle the error sanely.
* fsl_imx25_realize(), fsl_imx31_realize(), dp8393x_realize()
DeviceClass.realize() methods, errors handled sanely further up the
call chain.
We're good. Test case again behaves:
$ qemu-system-x86_64 -m 10000000
qemu-system-x86_64: cannot set up guest memory 'pc.ram': Cannot allocate memory
[Exit 1 ]
The next commits will repair the rest of commit ef701d7's damage.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1441983105-26376-3-git-send-email-armbru@redhat.com>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
2015-09-11 22:51:43 +08:00
|
|
|
memory_region_init_ram(mr, owner, name, ram_size, &error_fatal);
|
2014-05-14 17:43:19 +08:00
|
|
|
}
|
numa: add -numa node,memdev= option
This option provides the infrastructure for binding guest NUMA nodes
to host NUMA nodes. For example:
-object memory-ram,size=1024M,policy=bind,host-nodes=0,id=ram-node0 \
-numa node,nodeid=0,cpus=0,memdev=ram-node0 \
-object memory-ram,size=1024M,policy=interleave,host-nodes=1-3,id=ram-node1 \
-numa node,nodeid=1,cpus=1,memdev=ram-node1
The option replaces "-numa node,mem=".
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
MST: conflict resolution
2014-05-14 17:43:17 +08:00
|
|
|
vmstate_register_ram_global(mr);
|
|
|
|
}
|
|
|
|
|
2014-05-14 17:43:15 +08:00
|
|
|
void memory_region_allocate_system_memory(MemoryRegion *mr, Object *owner,
|
|
|
|
const char *name,
|
|
|
|
uint64_t ram_size)
|
|
|
|
{
|
numa: add -numa node,memdev= option
This option provides the infrastructure for binding guest NUMA nodes
to host NUMA nodes. For example:
-object memory-ram,size=1024M,policy=bind,host-nodes=0,id=ram-node0 \
-numa node,nodeid=0,cpus=0,memdev=ram-node0 \
-object memory-ram,size=1024M,policy=interleave,host-nodes=1-3,id=ram-node1 \
-numa node,nodeid=1,cpus=1,memdev=ram-node1
The option replaces "-numa node,mem=".
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
MST: conflict resolution
2014-05-14 17:43:17 +08:00
|
|
|
uint64_t addr = 0;
|
|
|
|
int i;
|
|
|
|
|
|
|
|
if (nb_numa_nodes == 0 || !have_memdevs) {
|
|
|
|
allocate_system_memory_nonnuma(mr, owner, name, ram_size);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
memory_region_init(mr, owner, name, ram_size);
|
|
|
|
for (i = 0; i < MAX_NODES; i++) {
|
|
|
|
Error *local_err = NULL;
|
|
|
|
uint64_t size = numa_info[i].node_mem;
|
|
|
|
HostMemoryBackend *backend = numa_info[i].node_memdev;
|
|
|
|
if (!backend) {
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
MemoryRegion *seg = host_memory_backend_get_memory(backend, &local_err);
|
|
|
|
if (local_err) {
|
2015-02-10 22:06:23 +08:00
|
|
|
error_report_err(local_err);
|
numa: add -numa node,memdev= option
This option provides the infrastructure for binding guest NUMA nodes
to host NUMA nodes. For example:
-object memory-ram,size=1024M,policy=bind,host-nodes=0,id=ram-node0 \
-numa node,nodeid=0,cpus=0,memdev=ram-node0 \
-object memory-ram,size=1024M,policy=interleave,host-nodes=1-3,id=ram-node1 \
-numa node,nodeid=1,cpus=1,memdev=ram-node1
The option replaces "-numa node,mem=".
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
MST: conflict resolution
2014-05-14 17:43:17 +08:00
|
|
|
exit(1);
|
|
|
|
}
|
|
|
|
|
2014-06-30 18:28:15 +08:00
|
|
|
if (memory_region_is_mapped(seg)) {
|
|
|
|
char *path = object_get_canonical_path_component(OBJECT(backend));
|
|
|
|
error_report("memory backend %s is used multiple times. Each "
|
|
|
|
"-numa option must use a different memdev value.",
|
|
|
|
path);
|
|
|
|
exit(1);
|
|
|
|
}
|
|
|
|
|
numa: add -numa node,memdev= option
This option provides the infrastructure for binding guest NUMA nodes
to host NUMA nodes. For example:
-object memory-ram,size=1024M,policy=bind,host-nodes=0,id=ram-node0 \
-numa node,nodeid=0,cpus=0,memdev=ram-node0 \
-object memory-ram,size=1024M,policy=interleave,host-nodes=1-3,id=ram-node1 \
-numa node,nodeid=1,cpus=1,memdev=ram-node1
The option replaces "-numa node,mem=".
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
MST: conflict resolution
2014-05-14 17:43:17 +08:00
|
|
|
memory_region_add_subregion(mr, addr, seg);
|
|
|
|
vmstate_register_ram_global(seg);
|
|
|
|
addr += size;
|
|
|
|
}
|
2014-05-14 17:43:15 +08:00
|
|
|
}
|
2014-06-16 18:05:41 +08:00
|
|
|
|
2014-11-04 19:49:30 +08:00
|
|
|
static void numa_stat_memory_devices(uint64_t node_mem[])
|
|
|
|
{
|
|
|
|
MemoryDeviceInfoList *info_list = NULL;
|
|
|
|
MemoryDeviceInfoList **prev = &info_list;
|
|
|
|
MemoryDeviceInfoList *info;
|
|
|
|
|
|
|
|
qmp_pc_dimm_device_list(qdev_get_machine(), &prev);
|
|
|
|
for (info = info_list; info; info = info->next) {
|
|
|
|
MemoryDeviceInfo *value = info->value;
|
|
|
|
|
|
|
|
if (value) {
|
2015-10-27 06:34:59 +08:00
|
|
|
switch (value->type) {
|
2014-11-04 19:49:30 +08:00
|
|
|
case MEMORY_DEVICE_INFO_KIND_DIMM:
|
2015-10-27 06:34:59 +08:00
|
|
|
node_mem[value->u.dimm->node] += value->u.dimm->size;
|
2014-11-04 19:49:30 +08:00
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
qapi_free_MemoryDeviceInfoList(info_list);
|
|
|
|
}
|
|
|
|
|
|
|
|
void query_numa_node_mem(uint64_t node_mem[])
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
|
|
|
if (nb_numa_nodes <= 0) {
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
numa_stat_memory_devices(node_mem);
|
|
|
|
for (i = 0; i < nb_numa_nodes; i++) {
|
|
|
|
node_mem[i] += numa_info[i].node_mem;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2014-06-16 18:05:41 +08:00
|
|
|
static int query_memdev(Object *obj, void *opaque)
|
|
|
|
{
|
|
|
|
MemdevList **list = opaque;
|
2014-08-18 14:46:33 +08:00
|
|
|
MemdevList *m = NULL;
|
2014-06-16 18:05:41 +08:00
|
|
|
|
|
|
|
if (object_dynamic_cast(obj, TYPE_MEMORY_BACKEND)) {
|
2014-08-18 14:46:33 +08:00
|
|
|
m = g_malloc0(sizeof(*m));
|
2014-06-16 18:05:41 +08:00
|
|
|
|
|
|
|
m->value = g_malloc0(sizeof(*m->value));
|
|
|
|
|
|
|
|
m->value->size = object_property_get_int(obj, "size",
|
2015-11-23 16:35:31 +08:00
|
|
|
&error_abort);
|
2014-06-16 18:05:41 +08:00
|
|
|
m->value->merge = object_property_get_bool(obj, "merge",
|
2015-11-23 16:35:31 +08:00
|
|
|
&error_abort);
|
2014-06-16 18:05:41 +08:00
|
|
|
m->value->dump = object_property_get_bool(obj, "dump",
|
2015-11-23 16:35:31 +08:00
|
|
|
&error_abort);
|
2014-06-16 18:05:41 +08:00
|
|
|
m->value->prealloc = object_property_get_bool(obj,
|
2015-11-23 16:35:31 +08:00
|
|
|
"prealloc",
|
|
|
|
&error_abort);
|
2014-06-16 18:05:41 +08:00
|
|
|
m->value->policy = object_property_get_enum(obj,
|
|
|
|
"policy",
|
2015-05-27 23:07:56 +08:00
|
|
|
"HostMemPolicy",
|
2015-11-23 16:35:31 +08:00
|
|
|
&error_abort);
|
2014-06-16 18:05:41 +08:00
|
|
|
object_property_get_uint16List(obj, "host-nodes",
|
2015-11-23 16:35:31 +08:00
|
|
|
&m->value->host_nodes,
|
|
|
|
&error_abort);
|
2014-06-16 18:05:41 +08:00
|
|
|
|
|
|
|
m->next = *list;
|
|
|
|
*list = m;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
MemdevList *qmp_query_memdev(Error **errp)
|
|
|
|
{
|
2015-11-23 16:35:31 +08:00
|
|
|
Object *obj = object_get_objects_root();
|
2014-08-18 14:46:35 +08:00
|
|
|
MemdevList *list = NULL;
|
2014-06-16 18:05:41 +08:00
|
|
|
|
2015-11-23 16:35:31 +08:00
|
|
|
object_child_foreach(obj, query_memdev, &list);
|
2014-06-16 18:05:41 +08:00
|
|
|
return list;
|
|
|
|
}
|