Re: [Qemu-devel] [PATCH v3 09/10] hw: Replace global smp variables with MachineState for all remaining archs

[Eduardo Habkost <ehabkost@redhat.com>]

On Sun, May 19, 2019 at 04:54:27AM +0800, Like Xu wrote:
> The global smp variables in alpha/hppa/mips/openrisc/sparc*/xtensa codes
> are replaced with smp properties from MachineState.
> 
> A local variable of the same name would be introduced in the declaration
> phase if it's used widely in the context OR replace it on the spot if it's
> only used once. No semantic changes.
> 
> Signed-off-by: Like Xu <like.xu@linux.intel.com>
> Reviewed-by: Alistair Francis <alistair.francis@wdc.com>

CCing the maintainers for those machines.  Any objections to merging this
through the Machine Core tree?

> ---
>  hw/alpha/dp264.c           | 1 +
>  hw/hppa/machine.c          | 2 ++
>  hw/mips/boston.c           | 2 +-
>  hw/mips/mips_malta.c       | 2 ++
>  hw/openrisc/openrisc_sim.c | 1 +
>  hw/sparc/sun4m.c           | 2 ++
>  hw/sparc64/sun4u.c         | 4 ++--
>  hw/xtensa/sim.c            | 2 +-
>  hw/xtensa/xtfpga.c         | 1 +
>  9 files changed, 13 insertions(+), 4 deletions(-)
> 
> diff --git a/hw/alpha/dp264.c b/hw/alpha/dp264.c
> index 0347eb897c..9dfb835013 100644
> --- a/hw/alpha/dp264.c
> +++ b/hw/alpha/dp264.c
> @@ -63,6 +63,7 @@ static void clipper_init(MachineState *machine)
>      char *palcode_filename;
>      uint64_t palcode_entry, palcode_low, palcode_high;
>      uint64_t kernel_entry, kernel_low, kernel_high;
> +    unsigned int smp_cpus = machine->smp.cpus;
>  
>      /* Create up to 4 cpus.  */
>      memset(cpus, 0, sizeof(cpus));
> diff --git a/hw/hppa/machine.c b/hw/hppa/machine.c
> index 416e67bab1..662838d83b 100644
> --- a/hw/hppa/machine.c
> +++ b/hw/hppa/machine.c
> @@ -72,6 +72,7 @@ static void machine_hppa_init(MachineState *machine)
>      MemoryRegion *ram_region;
>      MemoryRegion *cpu_region;
>      long i;
> +    unsigned int smp_cpus = machine->smp.cpus;
>  
>      ram_size = machine->ram_size;
>  
> @@ -242,6 +243,7 @@ static void machine_hppa_init(MachineState *machine)
>  
>  static void hppa_machine_reset(MachineState *ms)
>  {
> +    unsigned int smp_cpus = ms->smp.cpus;
>      int i;
>  
>      qemu_devices_reset();
> diff --git a/hw/mips/boston.c b/hw/mips/boston.c
> index a8b29f62f5..ccbfac54ef 100644
> --- a/hw/mips/boston.c
> +++ b/hw/mips/boston.c
> @@ -460,7 +460,7 @@ static void boston_mach_init(MachineState *machine)
>  
>      object_property_set_str(OBJECT(s->cps), machine->cpu_type, "cpu-type",
>                              &err);
> -    object_property_set_int(OBJECT(s->cps), smp_cpus, "num-vp", &err);
> +    object_property_set_int(OBJECT(s->cps), machine->smp.cpus, "num-vp", &err);
>      object_property_set_bool(OBJECT(s->cps), true, "realized", &err);
>  
>      if (err != NULL) {
> diff --git a/hw/mips/mips_malta.c b/hw/mips/mips_malta.c
> index 5fe9512c24..ead5976d1a 100644
> --- a/hw/mips/mips_malta.c
> +++ b/hw/mips/mips_malta.c
> @@ -1095,6 +1095,8 @@ static int64_t load_kernel (void)
>  
>  static void malta_mips_config(MIPSCPU *cpu)
>  {
> +    MachineState *ms = MACHINE(qdev_get_machine());
> +    unsigned int smp_cpus = ms->smp.cpus;
>      CPUMIPSState *env = &cpu->env;
>      CPUState *cs = CPU(cpu);
>  
> diff --git a/hw/openrisc/openrisc_sim.c b/hw/openrisc/openrisc_sim.c
> index 0a906d815e..8d828e78ee 100644
> --- a/hw/openrisc/openrisc_sim.c
> +++ b/hw/openrisc/openrisc_sim.c
> @@ -131,6 +131,7 @@ static void openrisc_sim_init(MachineState *machine)
>      qemu_irq *cpu_irqs[2];
>      qemu_irq serial_irq;
>      int n;
> +    unsigned int smp_cpus = machine->smp.cpus;
>  
>      for (n = 0; n < smp_cpus; n++) {
>          cpu = OPENRISC_CPU(cpu_create(machine->cpu_type));
> diff --git a/hw/sparc/sun4m.c b/hw/sparc/sun4m.c
> index 07d126aea8..5c3739f2ef 100644
> --- a/hw/sparc/sun4m.c
> +++ b/hw/sparc/sun4m.c
> @@ -852,6 +852,8 @@ static void sun4m_hw_init(const struct sun4m_hwdef *hwdef,
>      FWCfgState *fw_cfg;
>      DeviceState *dev;
>      SysBusDevice *s;
> +    unsigned int smp_cpus = machine->smp.cpus;
> +    unsigned int max_cpus = machine->smp.max_cpus;
>  
>      /* init CPUs */
>      for(i = 0; i < smp_cpus; i++) {
> diff --git a/hw/sparc64/sun4u.c b/hw/sparc64/sun4u.c
> index 399f2d73c8..0807f274bf 100644
> --- a/hw/sparc64/sun4u.c
> +++ b/hw/sparc64/sun4u.c
> @@ -678,8 +678,8 @@ static void sun4uv_init(MemoryRegion *address_space_mem,
>                                  &FW_CFG_IO(dev)->comb_iomem);
>  
>      fw_cfg = FW_CFG(dev);
> -    fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, (uint16_t)smp_cpus);
> -    fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)max_cpus);
> +    fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, (uint16_t)machine->smp.cpus);
> +    fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)machine->smp.max_cpus);
>      fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size);
>      fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, hwdef->machine_id);
>      fw_cfg_add_i64(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_entry);
> diff --git a/hw/xtensa/sim.c b/hw/xtensa/sim.c
> index 12c7437398..a4eef76fbc 100644
> --- a/hw/xtensa/sim.c
> +++ b/hw/xtensa/sim.c
> @@ -60,7 +60,7 @@ static void xtensa_sim_init(MachineState *machine)
>      const char *kernel_filename = machine->kernel_filename;
>      int n;
>  
> -    for (n = 0; n < smp_cpus; n++) {
> +    for (n = 0; n < machine->smp.cpus; n++) {
>          cpu = XTENSA_CPU(cpu_create(machine->cpu_type));
>          env = &cpu->env;
>  
> diff --git a/hw/xtensa/xtfpga.c b/hw/xtensa/xtfpga.c
> index e05ef75a75..f7f3e11e93 100644
> --- a/hw/xtensa/xtfpga.c
> +++ b/hw/xtensa/xtfpga.c
> @@ -238,6 +238,7 @@ static void xtfpga_init(const XtfpgaBoardDesc *board, MachineState *machine)
>      const unsigned system_io_size = 224 * MiB;
>      uint32_t freq = 10000000;
>      int n;
> +    unsigned int smp_cpus = machine->smp.cpus;
>  
>      if (smp_cpus > 1) {
>          mx_pic = xtensa_mx_pic_init(31);
> -- 
> 2.21.0
> 
> 

-- 
Eduardo