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Re: [Qemu-devel] [PATCH 1/7] machine: move possible_cpus to MachineState
From: |
David Gibson |
Subject: |
Re: [Qemu-devel] [PATCH 1/7] machine: move possible_cpus to MachineState |
Date: |
Fri, 10 Feb 2017 10:20:21 +1100 |
User-agent: |
Mutt/1.7.1 (2016-10-04) |
On Thu, Feb 09, 2017 at 12:08:32PM +0100, Igor Mammedov wrote:
> so that it would be possible to reuse it with
> spapr/virt-aarch64 targets.
>
> Signed-off-by: Igor Mammedov <address@hidden>
Reviewed-by: David Gibson <address@hidden>
> ---
> include/hw/boards.h | 1 +
> include/hw/i386/pc.h | 1 -
> hw/i386/pc.c | 57
> ++++++++++++++++++++++++++--------------------------
> 3 files changed, 30 insertions(+), 29 deletions(-)
>
> diff --git a/include/hw/boards.h b/include/hw/boards.h
> index ac891a8..64e8c07 100644
> --- a/include/hw/boards.h
> +++ b/include/hw/boards.h
> @@ -178,6 +178,7 @@ struct MachineState {
> char *initrd_filename;
> const char *cpu_model;
> AccelState *accelerator;
> + CPUArchIdList *possible_cpus;
> };
>
> #define DEFINE_MACHINE(namestr, machine_initfn) \
> diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
> index 079e8d9..d1f4554 100644
> --- a/include/hw/i386/pc.h
> +++ b/include/hw/i386/pc.h
> @@ -73,7 +73,6 @@ struct PCMachineState {
> /* CPU and apic information: */
> bool apic_xrupt_override;
> unsigned apic_id_limit;
> - CPUArchIdList *possible_cpus;
> uint16_t boot_cpus;
>
> /* NUMA information: */
> diff --git a/hw/i386/pc.c b/hw/i386/pc.c
> index e3fcd51..cf2bec4 100644
> --- a/hw/i386/pc.c
> +++ b/hw/i386/pc.c
> @@ -707,7 +707,8 @@ static void pc_build_smbios(PCMachineState *pcms)
> size_t smbios_tables_len, smbios_anchor_len;
> struct smbios_phys_mem_area *mem_array;
> unsigned i, array_count;
> - X86CPU *cpu = X86_CPU(pcms->possible_cpus->cpus[0].cpu);
> + MachineState *ms = MACHINE(pcms);
> + X86CPU *cpu = X86_CPU(ms->possible_cpus->cpus[0].cpu);
>
> /* tell smbios about cpuid version and features */
> smbios_set_cpuid(cpu->env.cpuid_version, cpu->env.features[FEAT_1_EDX]);
> @@ -1111,7 +1112,7 @@ static void pc_new_cpu(const char *typename, int64_t
> apic_id, Error **errp)
> void pc_hot_add_cpu(const int64_t id, Error **errp)
> {
> ObjectClass *oc;
> - PCMachineState *pcms = PC_MACHINE(qdev_get_machine());
> + MachineState *ms = MACHINE(qdev_get_machine());
> int64_t apic_id = x86_cpu_apic_id_from_index(id);
> Error *local_err = NULL;
>
> @@ -1127,8 +1128,8 @@ void pc_hot_add_cpu(const int64_t id, Error **errp)
> return;
> }
>
> - assert(pcms->possible_cpus->cpus[0].cpu); /* BSP is always present */
> - oc = OBJECT_CLASS(CPU_GET_CLASS(pcms->possible_cpus->cpus[0].cpu));
> + assert(ms->possible_cpus->cpus[0].cpu); /* BSP is always present */
> + oc = OBJECT_CLASS(CPU_GET_CLASS(ms->possible_cpus->cpus[0].cpu));
> pc_new_cpu(object_class_get_name(oc), apic_id, &local_err);
> if (local_err) {
> error_propagate(errp, local_err);
> @@ -1178,11 +1179,11 @@ void pc_cpus_init(PCMachineState *pcms)
> * This is used for FW_CFG_MAX_CPUS. See comments on bochs_bios_init().
> */
> pcms->apic_id_limit = x86_cpu_apic_id_from_index(max_cpus - 1) + 1;
> - pcms->possible_cpus = g_malloc0(sizeof(CPUArchIdList) +
> - sizeof(CPUArchId) * max_cpus);
> + machine->possible_cpus = g_malloc0(sizeof(CPUArchIdList) +
> + sizeof(CPUArchId) * max_cpus);
> for (i = 0; i < max_cpus; i++) {
> - pcms->possible_cpus->cpus[i].arch_id = x86_cpu_apic_id_from_index(i);
> - pcms->possible_cpus->len++;
> + machine->possible_cpus->cpus[i].arch_id =
> x86_cpu_apic_id_from_index(i);
> + machine->possible_cpus->len++;
> if (i < smp_cpus) {
> pc_new_cpu(typename, x86_cpu_apic_id_from_index(i),
> &error_fatal);
> }
> @@ -1191,7 +1192,8 @@ void pc_cpus_init(PCMachineState *pcms)
>
> static void pc_build_feature_control_file(PCMachineState *pcms)
> {
> - X86CPU *cpu = X86_CPU(pcms->possible_cpus->cpus[0].cpu);
> + MachineState *ms = MACHINE(pcms);
> + X86CPU *cpu = X86_CPU(ms->possible_cpus->cpus[0].cpu);
> CPUX86State *env = &cpu->env;
> uint32_t unused, ecx, edx;
> uint64_t feature_control_bits = 0;
> @@ -1781,21 +1783,20 @@ static int pc_apic_cmp(const void *a, const void *b)
> }
>
> /* returns pointer to CPUArchId descriptor that matches CPU's apic_id
> - * in pcms->possible_cpus->cpus, if pcms->possible_cpus->cpus has no
> + * in ms->possible_cpus->cpus, if ms->possible_cpus->cpus has no
> * entry corresponding to CPU's apic_id returns NULL.
> */
> -static CPUArchId *pc_find_cpu_slot(PCMachineState *pcms, CPUState *cpu,
> - int *idx)
> +static CPUArchId *pc_find_cpu_slot(MachineState *ms, CPUState *cpu, int *idx)
> {
> CPUClass *cc = CPU_GET_CLASS(cpu);
> CPUArchId apic_id, *found_cpu;
>
> apic_id.arch_id = cc->get_arch_id(CPU(cpu));
> - found_cpu = bsearch(&apic_id, pcms->possible_cpus->cpus,
> - pcms->possible_cpus->len, sizeof(*pcms->possible_cpus->cpus),
> + found_cpu = bsearch(&apic_id, ms->possible_cpus->cpus,
> + ms->possible_cpus->len, sizeof(*ms->possible_cpus->cpus),
> pc_apic_cmp);
> if (found_cpu && idx) {
> - *idx = found_cpu - pcms->possible_cpus->cpus;
> + *idx = found_cpu - ms->possible_cpus->cpus;
> }
> return found_cpu;
> }
> @@ -1825,7 +1826,7 @@ static void pc_cpu_plug(HotplugHandler *hotplug_dev,
> fw_cfg_modify_i16(pcms->fw_cfg, FW_CFG_NB_CPUS, pcms->boot_cpus);
> }
>
> - found_cpu = pc_find_cpu_slot(pcms, CPU(dev), NULL);
> + found_cpu = pc_find_cpu_slot(MACHINE(pcms), CPU(dev), NULL);
> found_cpu->cpu = CPU(dev);
> out:
> error_propagate(errp, local_err);
> @@ -1838,7 +1839,7 @@ static void pc_cpu_unplug_request_cb(HotplugHandler
> *hotplug_dev,
> Error *local_err = NULL;
> PCMachineState *pcms = PC_MACHINE(hotplug_dev);
>
> - pc_find_cpu_slot(pcms, CPU(dev), &idx);
> + pc_find_cpu_slot(MACHINE(pcms), CPU(dev), &idx);
> assert(idx != -1);
> if (idx == 0) {
> error_setg(&local_err, "Boot CPU is unpluggable");
> @@ -1872,7 +1873,7 @@ static void pc_cpu_unplug_cb(HotplugHandler
> *hotplug_dev,
> goto out;
> }
>
> - found_cpu = pc_find_cpu_slot(pcms, CPU(dev), NULL);
> + found_cpu = pc_find_cpu_slot(MACHINE(pcms), CPU(dev), NULL);
> found_cpu->cpu = NULL;
> object_unparent(OBJECT(dev));
>
> @@ -1930,13 +1931,15 @@ static void pc_cpu_pre_plug(HotplugHandler
> *hotplug_dev,
> cpu->apic_id = apicid_from_topo_ids(smp_cores, smp_threads, &topo);
> }
>
> - cpu_slot = pc_find_cpu_slot(pcms, CPU(dev), &idx);
> + cpu_slot = pc_find_cpu_slot(MACHINE(pcms), CPU(dev), &idx);
> if (!cpu_slot) {
> + MachineState *ms = MACHINE(pcms);
> +
> x86_topo_ids_from_apicid(cpu->apic_id, smp_cores, smp_threads,
> &topo);
> error_setg(errp, "Invalid CPU [socket: %u, core: %u, thread: %u]
> with"
> " APIC ID %" PRIu32 ", valid index range 0:%d",
> topo.pkg_id, topo.core_id, topo.smt_id, cpu->apic_id,
> - pcms->possible_cpus->len - 1);
> + ms->possible_cpus->len - 1);
> return;
> }
>
> @@ -2247,9 +2250,8 @@ static unsigned pc_cpu_index_to_socket_id(unsigned
> cpu_index)
>
> static const CPUArchIdList *pc_possible_cpu_arch_ids(MachineState *machine)
> {
> - PCMachineState *pcms = PC_MACHINE(machine);
> - assert(pcms->possible_cpus);
> - return pcms->possible_cpus;
> + assert(machine->possible_cpus);
> + return machine->possible_cpus;
> }
>
> static HotpluggableCPUList *pc_query_hotpluggable_cpus(MachineState *machine)
> @@ -2257,19 +2259,18 @@ static HotpluggableCPUList
> *pc_query_hotpluggable_cpus(MachineState *machine)
> int i;
> CPUState *cpu;
> HotpluggableCPUList *head = NULL;
> - PCMachineState *pcms = PC_MACHINE(machine);
> const char *cpu_type;
>
> - cpu = pcms->possible_cpus->cpus[0].cpu;
> + cpu = machine->possible_cpus->cpus[0].cpu;
> assert(cpu); /* BSP is always present */
> cpu_type = object_class_get_name(OBJECT_CLASS(CPU_GET_CLASS(cpu)));
>
> - for (i = 0; i < pcms->possible_cpus->len; i++) {
> + for (i = 0; i < machine->possible_cpus->len; i++) {
> X86CPUTopoInfo topo;
> HotpluggableCPUList *list_item = g_new0(typeof(*list_item), 1);
> HotpluggableCPU *cpu_item = g_new0(typeof(*cpu_item), 1);
> CpuInstanceProperties *cpu_props = g_new0(typeof(*cpu_props), 1);
> - const uint32_t apic_id = pcms->possible_cpus->cpus[i].arch_id;
> + const uint32_t apic_id = machine->possible_cpus->cpus[i].arch_id;
>
> x86_topo_ids_from_apicid(apic_id, smp_cores, smp_threads, &topo);
>
> @@ -2283,7 +2284,7 @@ static HotpluggableCPUList
> *pc_query_hotpluggable_cpus(MachineState *machine)
> cpu_props->thread_id = topo.smt_id;
> cpu_item->props = cpu_props;
>
> - cpu = pcms->possible_cpus->cpus[i].cpu;
> + cpu = machine->possible_cpus->cpus[i].cpu;
> if (cpu) {
> cpu_item->has_qom_path = true;
> cpu_item->qom_path = object_get_canonical_path(OBJECT(cpu));
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
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- [Qemu-devel] [PATCH 0/7] pc/spapr: unify handling of possible CPUs, Igor Mammedov, 2017/02/09
- [Qemu-devel] [PATCH 1/7] machine: move possible_cpus to MachineState, Igor Mammedov, 2017/02/09
- Re: [Qemu-devel] [PATCH 1/7] machine: move possible_cpus to MachineState,
David Gibson <=
- [Qemu-devel] [PATCH 2/7] pc: move pcms->possible_cpus init out of pc_cpus_init(), Igor Mammedov, 2017/02/09
- [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