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authorZhao Liu <zhao1.liu@intel.com>2024-04-24 23:49:24 +0800
committerPaolo Bonzini <pbonzini@redhat.com>2024-05-22 19:43:29 +0200
commit588208346f92e6030ae1d4bee94096ca0e070b60 (patch)
treed1f16ec2996fa69d40a83e1272fc66a4c323bd7d /hw/i386
parentb17a26bc4b0289ca7415f821bb0a89a8a333cea5 (diff)
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i386/cpu: Introduce module-id to X86CPU
Introduce module-id to be consistent with the module-id field in CpuInstanceProperties. Following the legacy smp check rules, also add the module_id validity into x86_cpu_pre_plug(). Tested-by: Yongwei Ma <yongwei.ma@intel.com> Co-developed-by: Zhuocheng Ding <zhuocheng.ding@intel.com> Signed-off-by: Zhuocheng Ding <zhuocheng.ding@intel.com> Signed-off-by: Zhao Liu <zhao1.liu@intel.com> Tested-by: Babu Moger <babu.moger@amd.com> Message-ID: <20240424154929.1487382-17-zhao1.liu@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw/i386')
-rw-r--r--hw/i386/x86-common.c33
1 files changed, 25 insertions, 8 deletions
diff --git a/hw/i386/x86-common.c b/hw/i386/x86-common.c
index 4d27279..ee9046d 100644
--- a/hw/i386/x86-common.c
+++ b/hw/i386/x86-common.c
@@ -294,6 +294,14 @@ void x86_cpu_pre_plug(HotplugHandler *hotplug_dev,
cpu->die_id = 0;
}
+ /*
+ * module-id was optional in QEMU 9.0 and older, so keep it optional
+ * if there's only one module per die.
+ */
+ if (cpu->module_id < 0 && ms->smp.modules == 1) {
+ cpu->module_id = 0;
+ }
+
if (cpu->socket_id < 0) {
error_setg(errp, "CPU socket-id is not set");
return;
@@ -310,6 +318,14 @@ void x86_cpu_pre_plug(HotplugHandler *hotplug_dev,
cpu->die_id, ms->smp.dies - 1);
return;
}
+ if (cpu->module_id < 0) {
+ error_setg(errp, "CPU module-id is not set");
+ return;
+ } else if (cpu->module_id > ms->smp.modules - 1) {
+ error_setg(errp, "Invalid CPU module-id: %u must be in range 0:%u",
+ cpu->module_id, ms->smp.modules - 1);
+ return;
+ }
if (cpu->core_id < 0) {
error_setg(errp, "CPU core-id is not set");
return;
@@ -329,16 +345,9 @@ void x86_cpu_pre_plug(HotplugHandler *hotplug_dev,
topo_ids.pkg_id = cpu->socket_id;
topo_ids.die_id = cpu->die_id;
+ topo_ids.module_id = cpu->module_id;
topo_ids.core_id = cpu->core_id;
topo_ids.smt_id = cpu->thread_id;
-
- /*
- * TODO: This is the temporary initialization for topo_ids.module_id to
- * avoid "maybe-uninitialized" compilation errors. Will remove when
- * X86CPU supports module_id.
- */
- topo_ids.module_id = 0;
-
cpu->apic_id = x86_apicid_from_topo_ids(&topo_info, &topo_ids);
}
@@ -383,6 +392,14 @@ void x86_cpu_pre_plug(HotplugHandler *hotplug_dev,
}
cpu->die_id = topo_ids.die_id;
+ if (cpu->module_id != -1 && cpu->module_id != topo_ids.module_id) {
+ error_setg(errp, "property module-id: %u doesn't match set apic-id:"
+ " 0x%x (module-id: %u)", cpu->module_id, cpu->apic_id,
+ topo_ids.module_id);
+ return;
+ }
+ cpu->module_id = topo_ids.module_id;
+
if (cpu->core_id != -1 && cpu->core_id != topo_ids.core_id) {
error_setg(errp, "property core-id: %u doesn't match set apic-id:"
" 0x%x (core-id: %u)", cpu->core_id, cpu->apic_id,