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| author | Igor Mammedov <imammedo@redhat.com> | 2017-05-30 18:23:58 +0200 |
|---|---|---|
| committer | Eduardo Habkost <ehabkost@redhat.com> | 2017-06-05 14:59:08 -0300 |
| commit | d41f3e750d2c06c613cb1b8db7724f0fbc0a2b14 (patch) | |
| tree | 2e95f755031d4b6d73c31ad404eaa30855ad3347 /hw/core | |
| parent | 60bed6a30aa8341cbc8fae4bdc53b9eb99d80586 (diff) | |
| download | qemu-d41f3e750d2c06c613cb1b8db7724f0fbc0a2b14.tar.gz | |
numa: make sure that all cpus have has_node_id set if numa is enabled
It fixes/add missing _PXM object for non mapped CPU (x86)
and missing fdt node (virt-arm).
It ensures that possible_cpus contains complete mapping if
numa is enabled by the time machine_init() is executed.
As result non completely mapped CPUs:
1) appear in ACPI/fdt blobs
2) QMP query-hotpluggable-cpus command shows bound nodes for such CPUs
3) allows to drop checks for has_node_id in numa only code,
reducing number of invariants incomplete mapping could produce
4) moves fixup/implicit node init from runtime numa_cpu_pre_plug()
(when CPU object is created) to machine_numa_finish_init() which
helps to fix [1, 2] and make possible_cpus complete source
of numa mapping available even before CPUs are created.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <1496161442-96665-4-git-send-email-imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Diffstat (limited to 'hw/core')
| -rw-r--r-- | hw/core/machine.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/hw/core/machine.c b/hw/core/machine.c index c1434e6a69..2e7e9778cd 100644 --- a/hw/core/machine.c +++ b/hw/core/machine.c @@ -721,19 +721,23 @@ static void machine_numa_finish_init(MachineState *machine) const CPUArchId *cpu_slot = &possible_cpus->cpus[i]; if (!cpu_slot->props.has_node_id) { - if (default_mapping) { - /* fetch default mapping from board and enable it */ - CpuInstanceProperties props = cpu_slot->props; - props.has_node_id = true; - machine_set_cpu_numa_node(machine, &props, &error_fatal); - } else { + /* fetch default mapping from board and enable it */ + CpuInstanceProperties props = cpu_slot->props; + + if (!default_mapping) { /* record slots with not set mapping, * TODO: make it hard error in future */ char *cpu_str = cpu_slot_to_string(cpu_slot); g_string_append_printf(s, "%sCPU %d [%s]", s->len ? ", " : "", i, cpu_str); g_free(cpu_str); + + /* non mapped cpus used to fallback to node 0 */ + props.node_id = 0; } + + props.has_node_id = true; + machine_set_cpu_numa_node(machine, &props, &error_fatal); } } if (s->len && !qtest_enabled()) { |