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[Qemu-devel] [PATCH v3 2/9] hw/i386: Adjust nr_dies with configured smp_
From: |
Like Xu |
Subject: |
[Qemu-devel] [PATCH v3 2/9] hw/i386: Adjust nr_dies with configured smp_dies for PCMachine |
Date: |
Wed, 12 Jun 2019 16:40:57 +0800 |
To support multiple dies configuration on PCMachine, the best place to
set CPUX86State->nr_dies with requested PCMachineState->smp_dies is in
pc_new_cpu() and pc_cpu_pre_plug(). Refactoring pc_new_cpu() is applied
and redundant parameter "const char *typename" would be removed.
Suggested-by: Eduardo Habkost <address@hidden>
Signed-off-by: Like Xu <address@hidden>
---
hw/i386/pc.c | 16 +++++++++++-----
1 file changed, 11 insertions(+), 5 deletions(-)
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index 9e9a42f007..af2e95a1b9 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -1520,12 +1520,16 @@ void pc_acpi_smi_interrupt(void *opaque, int irq, int
level)
}
}
-static void pc_new_cpu(const char *typename, int64_t apic_id, Error **errp)
+static void pc_new_cpu(PCMachineState *pcms, int64_t apic_id, Error **errp)
{
Object *cpu = NULL;
Error *local_err = NULL;
+ CPUX86State *env = NULL;
- cpu = object_new(typename);
+ cpu = object_new(MACHINE(pcms)->cpu_type);
+
+ env = &X86_CPU(cpu)->env;
+ env->nr_dies = pcms->smp_dies;
object_property_set_uint(cpu, apic_id, "apic-id", &local_err);
object_property_set_bool(cpu, true, "realized", &local_err);
@@ -1551,7 +1555,7 @@ void pc_hot_add_cpu(MachineState *ms, const int64_t id,
Error **errp)
return;
}
- pc_new_cpu(ms->cpu_type, apic_id, &local_err);
+ pc_new_cpu(PC_MACHINE(ms), apic_id, &local_err);
if (local_err) {
error_propagate(errp, local_err);
return;
@@ -1576,8 +1580,7 @@ void pc_cpus_init(PCMachineState *pcms)
ms->smp.max_cpus - 1) + 1;
possible_cpus = mc->possible_cpu_arch_ids(ms);
for (i = 0; i < ms->smp.cpus; i++) {
- pc_new_cpu(possible_cpus->cpus[i].type, possible_cpus->cpus[i].arch_id,
- &error_fatal);
+ pc_new_cpu(pcms, possible_cpus->cpus[i].arch_id, &error_fatal);
}
}
@@ -2297,6 +2300,7 @@ static void pc_cpu_pre_plug(HotplugHandler *hotplug_dev,
CPUArchId *cpu_slot;
X86CPUTopoInfo topo;
X86CPU *cpu = X86_CPU(dev);
+ CPUX86State *env = &cpu->env;
MachineState *ms = MACHINE(hotplug_dev);
PCMachineState *pcms = PC_MACHINE(hotplug_dev);
unsigned int smp_cores = ms->smp.cores;
@@ -2308,6 +2312,8 @@ static void pc_cpu_pre_plug(HotplugHandler *hotplug_dev,
return;
}
+ env->nr_dies = pcms->smp_dies;
+
/*
* If APIC ID is not set,
* set it based on socket/die/core/thread properties.
--
2.21.0
[Qemu-devel] [PATCH v3 2/9] hw/i386: Adjust nr_dies with configured smp_dies for PCMachine,
Like Xu <=
[Qemu-devel] [PATCH v3 5/9] tests/x86-cpuid: Update testcases in test_topo_bits() with multiple dies, Like Xu, 2019/06/12
[Qemu-devel] [PATCH v3 3/9] i386/cpu: Consolidate die-id validity in smp context, Like Xu, 2019/06/12
[Qemu-devel] [PATCH v3 4/9] i386: Update new x86_apicid parsing rules with die_offset support, Like Xu, 2019/06/12
[Qemu-devel] [PATCH v3 6/9] i386/cpu: Add CPUID.1F generation support for multi-dies PCMachine, Like Xu, 2019/06/12