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[Qemu-devel] [PULL 08/29] hw/arm/virt: explicitly allocate cpu_index for
From: |
Eduardo Habkost |
Subject: |
[Qemu-devel] [PULL 08/29] hw/arm/virt: explicitly allocate cpu_index for cpus |
Date: |
Thu, 11 May 2017 16:18:22 -0300 |
From: Igor Mammedov <address@hidden>
Currently cpu_index is implicitly auto assigned during
cpu.realize() time cpu_exec_realizefn()->cpu_list_add().
It happens to match index in possible_cpus so take
control over it and make board initialize cpu_index
to possible_cpus index explicitly. It will at least
document that board is in control of it and when
'-device cpu' support comes it will keep cpu_index
stable regardless of order cpus are created so it won't
break migration.
Within this series it will be used for internal
conversion from storing cpu_index based NUMA node
bitmaps to property based mapping with possible_cpus,
And will allow map cpu_index to a CPU entry in
possible_cpus array.
Signed-off-by: Igor Mammedov <address@hidden>
Reviewed-by: Andrew Jones <address@hidden>
Message-Id: <address@hidden>
Signed-off-by: Eduardo Habkost <address@hidden>
---
hw/arm/virt.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index e2c5626c52..acc748ec40 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -1349,6 +1349,7 @@ static void machvirt_init(MachineState *machine)
possible_cpus = mc->possible_cpu_arch_ids(machine);
for (n = 0; n < possible_cpus->len; n++) {
Object *cpuobj;
+ CPUState *cs;
if (n >= smp_cpus) {
break;
@@ -1358,6 +1359,9 @@ static void machvirt_init(MachineState *machine)
object_property_set_int(cpuobj, possible_cpus->cpus[n].arch_id,
"mp-affinity", NULL);
+ cs = CPU(cpuobj);
+ cs->cpu_index = n;
+
if (!vms->secure) {
object_property_set_bool(cpuobj, false, "has_el3", NULL);
}
--
2.11.0.259.g40922b1
- [Qemu-devel] [PULL 00/29] x86 and machine queue, 2017-05-11, Eduardo Habkost, 2017/05/11
- [Qemu-devel] [PULL 01/29] i386: rewrite way CPUID index is validated, Eduardo Habkost, 2017/05/11
- [Qemu-devel] [PULL 02/29] numa: Allow setting NUMA distance for different NUMA nodes, Eduardo Habkost, 2017/05/11
- [Qemu-devel] [PULL 03/29] numa: equally distribute memory on nodes, Eduardo Habkost, 2017/05/11
- [Qemu-devel] [PULL 04/29] tests: acpi: extend cphp and memhp testcase with numa distance check, Eduardo Habkost, 2017/05/11
- [Qemu-devel] [PULL 05/29] tests: add CPUs to numa node mapping test, Eduardo Habkost, 2017/05/11
- [Qemu-devel] [PULL 06/29] hw/arm/virt: extract mp-affinity calculation in separate function, Eduardo Habkost, 2017/05/11
- [Qemu-devel] [PULL 07/29] hw/arm/virt: use machine->possible_cpus for storing possible topology info, Eduardo Habkost, 2017/05/11
- [Qemu-devel] [PULL 08/29] hw/arm/virt: explicitly allocate cpu_index for cpus,
Eduardo Habkost <=
- [Qemu-devel] [PULL 09/29] numa: move source of default CPUs to NUMA node mapping into boards, Eduardo Habkost, 2017/05/11
- [Qemu-devel] [PULL 11/29] pc: add node-id property to CPU, Eduardo Habkost, 2017/05/11
- [Qemu-devel] [PULL 10/29] spapr: add node-id property to sPAPR core, Eduardo Habkost, 2017/05/11
- [Qemu-devel] [PULL 12/29] virt-arm: add node-id property to CPU, Eduardo Habkost, 2017/05/11
- [Qemu-devel] [PULL 13/29] numa: add check that board supports cpu_index to node mapping, Eduardo Habkost, 2017/05/11
- [Qemu-devel] [PULL 14/29] numa: mirror cpu to node mapping in MachineState::possible_cpus, Eduardo Habkost, 2017/05/11
- [Qemu-devel] [PULL 15/29] numa: do default mapping based on possible_cpus instead of node_cpu bitmaps, Eduardo Habkost, 2017/05/11
- [Qemu-devel] [PULL 16/29] pc: get numa node mapping from possible_cpus instead of numa_get_node_for_cpu(), Eduardo Habkost, 2017/05/11
- [Qemu-devel] [PULL 17/29] spapr: get numa node mapping from possible_cpus instead of numa_get_node_for_cpu(), Eduardo Habkost, 2017/05/11
- [Qemu-devel] [PULL 18/29] virt-arm: get numa node mapping from possible_cpus instead of numa_get_node_for_cpu(), Eduardo Habkost, 2017/05/11