[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH 7/7] machine: unify [pc_|spapr_]query_hotpluggable_c
From: |
Igor Mammedov |
Subject: |
[Qemu-devel] [PATCH 7/7] machine: unify [pc_|spapr_]query_hotpluggable_cpus() callbacks |
Date: |
Thu, 9 Feb 2017 12:08:38 +0100 |
All callbacks FOO_query_hotpluggable_cpus() are practically
the same except of setting vcpus_count to different values.
Convert them to a generic machine_query_hotpluggable_cpus()
callback by moving vcpus_count initialization to per machine
specific callback possible_cpu_arch_ids().
Signed-off-by: Igor Mammedov <address@hidden>
---
include/hw/boards.h | 3 +++
hw/core/machine.c | 31 +++++++++++++++++++++++++++++++
hw/i386/pc.c | 36 ++----------------------------------
hw/ppc/spapr.c | 34 ++--------------------------------
4 files changed, 38 insertions(+), 66 deletions(-)
diff --git a/include/hw/boards.h b/include/hw/boards.h
index 60209df..9040dbb 100644
--- a/include/hw/boards.h
+++ b/include/hw/boards.h
@@ -41,15 +41,18 @@ int machine_phandle_start(MachineState *machine);
bool machine_dump_guest_core(MachineState *machine);
bool machine_mem_merge(MachineState *machine);
void machine_register_compat_props(MachineState *machine);
+HotpluggableCPUList *machine_query_hotpluggable_cpus(MachineState *machine);
/**
* CPUArchId:
* @arch_id - architecture-dependent CPU ID of present or possible CPU
* @cpu - pointer to corresponding CPU object if it's present on NULL otherwise
* @props - CPU object properties, initialized by board
+ * #vcpus_count - number of threads provided by @cpu object
*/
typedef struct {
uint64_t arch_id;
+ int64_t vcpus_count;
CpuInstanceProperties props;
Object *cpu;
} CPUArchId;
diff --git a/hw/core/machine.c b/hw/core/machine.c
index b0fd91f..0699750 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -357,6 +357,37 @@ static void machine_init_notify(Notifier *notifier, void
*data)
foreach_dynamic_sysbus_device(error_on_sysbus_device, NULL);
}
+HotpluggableCPUList *machine_query_hotpluggable_cpus(MachineState *machine)
+{
+ int i;
+ Object *cpu;
+ HotpluggableCPUList *head = NULL;
+ const char *cpu_type;
+
+ cpu = machine->possible_cpus->cpus[0].cpu;
+ assert(cpu); /* Boot cpu is always present */
+ cpu_type = object_get_typename(cpu);
+ for (i = 0; i < machine->possible_cpus->len; i++) {
+ HotpluggableCPUList *list_item = g_new0(typeof(*list_item), 1);
+ HotpluggableCPU *cpu_item = g_new0(typeof(*cpu_item), 1);
+
+ cpu_item->type = g_strdup(cpu_type);
+ cpu_item->vcpus_count = machine->possible_cpus->cpus[i].vcpus_count;
+ cpu_item->props = g_memdup(&machine->possible_cpus->cpus[i].props,
+ sizeof(*cpu_item->props));
+
+ cpu = machine->possible_cpus->cpus[i].cpu;
+ if (cpu) {
+ cpu_item->has_qom_path = true;
+ cpu_item->qom_path = object_get_canonical_path(cpu);
+ }
+ list_item->value = cpu_item;
+ list_item->next = head;
+ head = list_item;
+ }
+ return head;
+}
+
static void machine_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index afaae15..548628f 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -2266,6 +2266,7 @@ static const CPUArchIdList
*pc_possible_cpu_arch_ids(MachineState *ms)
for (i = 0; i < ms->possible_cpus->len; i++) {
X86CPUTopoInfo topo;
+ ms->possible_cpus->cpus[i].vcpus_count = 1;
ms->possible_cpus->cpus[i].arch_id = x86_cpu_apic_id_from_index(i);
x86_topo_ids_from_apicid(ms->possible_cpus->cpus[i].arch_id,
smp_cores, smp_threads, &topo);
@@ -2279,39 +2280,6 @@ static const CPUArchIdList
*pc_possible_cpu_arch_ids(MachineState *ms)
return ms->possible_cpus;
}
-static HotpluggableCPUList *pc_query_hotpluggable_cpus(MachineState *machine)
-{
- int i;
- Object *cpu;
- HotpluggableCPUList *head = NULL;
- const char *cpu_type;
-
- cpu = machine->possible_cpus->cpus[0].cpu;
- assert(cpu); /* BSP is always present */
- cpu_type = object_get_typename(cpu);
-
- for (i = 0; i < machine->possible_cpus->len; i++) {
- HotpluggableCPUList *list_item = g_new0(typeof(*list_item), 1);
- HotpluggableCPU *cpu_item = g_new0(typeof(*cpu_item), 1);
-
- cpu_item->type = g_strdup(cpu_type);
- cpu_item->vcpus_count = 1;
- cpu_item->props = g_memdup(&machine->possible_cpus->cpus[i].props,
- sizeof(*cpu_item->props));
-
- cpu = machine->possible_cpus->cpus[i].cpu;
- if (cpu) {
- cpu_item->has_qom_path = true;
- cpu_item->qom_path = object_get_canonical_path(cpu);
- }
-
- list_item->value = cpu_item;
- list_item->next = head;
- head = list_item;
- }
- return head;
-}
-
static void x86_nmi(NMIState *n, int cpu_index, Error **errp)
{
/* cpu index isn't used */
@@ -2352,7 +2320,7 @@ static void pc_machine_class_init(ObjectClass *oc, void
*data)
mc->get_hotplug_handler = pc_get_hotpug_handler;
mc->cpu_index_to_socket_id = pc_cpu_index_to_socket_id;
mc->possible_cpu_arch_ids = pc_possible_cpu_arch_ids;
- mc->query_hotpluggable_cpus = pc_query_hotpluggable_cpus;
+ mc->query_hotpluggable_cpus = machine_query_hotpluggable_cpus;
mc->default_boot_order = "cad";
mc->hot_add_cpu = pc_hot_add_cpu;
mc->max_cpus = 255;
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 8d039ae..3c4d632 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -2799,6 +2799,7 @@ static const CPUArchIdList
*spapr_possible_cpu_arch_ids(MachineState *machine)
for (i = 0; i < machine->possible_cpus->len; i++) {
int core_id = i * smp_threads;
+ machine->possible_cpus->cpus[i].vcpus_count = smp_threads;
machine->possible_cpus->cpus[i].arch_id = core_id;
machine->possible_cpus->cpus[i].props.has_core_id = true;
machine->possible_cpus->cpus[i].props.core_id = core_id;
@@ -2808,37 +2809,6 @@ static const CPUArchIdList
*spapr_possible_cpu_arch_ids(MachineState *machine)
return machine->possible_cpus;
}
-static HotpluggableCPUList *spapr_query_hotpluggable_cpus(MachineState
*machine)
-{
- int i;
- Object *cpu;
- HotpluggableCPUList *head = NULL;
- const char *cpu_type;
-
- cpu = machine->possible_cpus->cpus[0].cpu;
- assert(cpu); /* Boot cpu is always present */
- cpu_type = object_get_typename(cpu);
- for (i = 0; i < machine->possible_cpus->len; i++) {
- HotpluggableCPUList *list_item = g_new0(typeof(*list_item), 1);
- HotpluggableCPU *cpu_item = g_new0(typeof(*cpu_item), 1);
-
- cpu_item->type = g_strdup(cpu_type);
- cpu_item->vcpus_count = smp_threads; // TODO: ??? generalize
- cpu_item->props = g_memdup(&machine->possible_cpus->cpus[i].props,
- sizeof(*cpu_item->props));
-
- cpu = machine->possible_cpus->cpus[i].cpu;
- if (cpu) {
- cpu_item->has_qom_path = true;
- cpu_item->qom_path = object_get_canonical_path(cpu);
- }
- list_item->value = cpu_item;
- list_item->next = head;
- head = list_item;
- }
- return head;
-}
-
static void spapr_phb_placement(sPAPRMachineState *spapr, uint32_t index,
uint64_t *buid, hwaddr *pio,
hwaddr *mmio32, hwaddr *mmio64,
@@ -2927,7 +2897,7 @@ static void spapr_machine_class_init(ObjectClass *oc,
void *data)
smc->dr_lmb_enabled = true;
smc->tcg_default_cpu = "POWER8";
- mc->query_hotpluggable_cpus = spapr_query_hotpluggable_cpus;
+ mc->query_hotpluggable_cpus = machine_query_hotpluggable_cpus;
fwc->get_dev_path = spapr_get_fw_dev_path;
nc->nmi_monitor_handler = spapr_nmi;
smc->phb_placement = spapr_phb_placement;
--
2.7.4
- Re: [Qemu-devel] [PATCH 2/7] pc: move pcms->possible_cpus init out of pc_cpus_init(), (continued)
- [Qemu-devel] [PATCH 3/7] pc: calculate topology only once when possible_cpus is initialised, Igor Mammedov, 2017/02/09
- [Qemu-devel] [PATCH 4/7] pc: pass apic_id to pc_find_cpu_slot() directly so lookup could be done without CPU object, Igor Mammedov, 2017/02/09
- [Qemu-devel] [PATCH 5/7] change CPUArchId.cpu type to Object*, Igor Mammedov, 2017/02/09
- [Qemu-devel] [PATCH 6/7] spapr: reuse machine->possible_cpus instead of cores[], Igor Mammedov, 2017/02/09
- [Qemu-devel] [PATCH 7/7] machine: unify [pc_|spapr_]query_hotpluggable_cpus() callbacks,
Igor Mammedov <=
- [Qemu-devel] [PATCH v2 8/7] machine: replace query_hotpluggable_cpus() callback with has_hotpluggable_cpus flag, Igor Mammedov, 2017/02/10
- Re: [Qemu-devel] [PATCH 0/7] pc/spapr: unify handling of possible CPUs, Igor Mammedov, 2017/02/10