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numa: Store boot memory address range in node_info

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Store memory address range information of boot memory  in address
range list of numa_info.

This helps to have a common NUMA node lookup by address function that
works for both boot-time memory and hotplugged memory.

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>
This commit is contained in:
Bharata B Rao 2015-06-29 13:50:26 +05:30 committed by Eduardo Habkost
parent fa9ea81d15
commit abafabd8c9
1 changed files with 27 additions and 0 deletions
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27
numa.c
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@ -56,6 +56,14 @@ void numa_set_mem_node_id(ram_addr_t addr, uint64_t size, uint32_t node)
{
struct numa_addr_range *range = g_malloc0(sizeof(*range));
/*
* Memory-less nodes can come here with 0 size in which case,
* there is nothing to do.
*/
if (!size) {
return;
}
range->mem_start = addr;
range->mem_end = addr + size - 1;
QLIST_INSERT_HEAD(&numa_info[node].addr, range, entry);
@ -74,6 +82,21 @@ void numa_unset_mem_node_id(ram_addr_t addr, uint64_t size, uint32_t node)
}
}
static void numa_set_mem_ranges(void)
{
int i;
ram_addr_t mem_start = 0;
/*
* Deduce start address of each node and use it to store
* the address range info in numa_info address range list
*/
for (i = 0; i < nb_numa_nodes; i++) {
numa_set_mem_node_id(mem_start, numa_info[i].node_mem, i);
mem_start += numa_info[i].node_mem;
}
}
static void numa_node_parse(NumaNodeOptions *node, QemuOpts *opts, Error **errp)
{
uint16_t nodenr;
@ -299,6 +322,8 @@ void parse_numa_opts(MachineClass *mc)
QLIST_INIT(&numa_info[i].addr);
}
numa_set_mem_ranges();
for (i = 0; i < nb_numa_nodes; i++) {
if (!bitmap_empty(numa_info[i].node_cpu, MAX_CPUMASK_BITS)) {
break;
@ -323,6 +348,8 @@ void parse_numa_opts(MachineClass *mc)
}
validate_numa_cpus();
} else {
numa_set_mem_node_id(0, ram_size, 0);
}
}