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Re: [Qemu-devel] [PATCH v2 14/29] migration: Move the VMStateDescription


From: Alex Bennée
Subject: Re: [Qemu-devel] [PATCH v2 14/29] migration: Move the VMStateDescription typedef to typedefs.h
Date: Wed, 07 Aug 2019 16:22:34 +0100
User-agent: mu4e 1.3.4; emacs 27.0.50

Markus Armbruster <address@hidden> writes:

> We declare incomplete struct VMStateDescription in a couple of places
> so we don't have to include migration/vmstate.h for the typedef.
> That's fine with me.  However, the next commit will drop
> migration/vmstate.h from a massive number of compiles.  Move the
> typedef to qemu/typedefs.h now, so I don't have to insert struct in
> front of VMStateDescription all over the place then.
>
> Signed-off-by: Markus Armbruster <address@hidden>

Reviewed-by: Alex Bennée <address@hidden>

> ---
>  include/hw/qdev-core.h      | 6 ++----
>  include/migration/vmstate.h | 1 -
>  include/qemu/typedefs.h     | 1 +
>  include/qom/cpu.h           | 4 ++--
>  target/alpha/cpu.h          | 2 +-
>  target/arm/cpu.h            | 2 +-
>  target/cris/cpu.h           | 2 +-
>  target/hppa/cpu.h           | 2 +-
>  target/i386/cpu.h           | 2 +-
>  target/lm32/cpu.h           | 2 +-
>  target/mips/internal.h      | 2 +-
>  target/openrisc/cpu.h       | 2 +-
>  target/ppc/cpu-qom.h        | 2 +-
>  target/ppc/cpu.h            | 2 +-
>  target/s390x/cpu.h          | 2 +-
>  target/sparc/cpu.h          | 2 +-
>  16 files changed, 17 insertions(+), 19 deletions(-)
>
> diff --git a/include/hw/qdev-core.h b/include/hw/qdev-core.h
> index b870c8ceeb..e5b62dd2fc 100644
> --- a/include/hw/qdev-core.h
> +++ b/include/hw/qdev-core.h
> @@ -35,8 +35,6 @@ typedef void (*DeviceReset)(DeviceState *dev);
>  typedef void (*BusRealize)(BusState *bus, Error **errp);
>  typedef void (*BusUnrealize)(BusState *bus, Error **errp);
>
> -struct VMStateDescription;
> -
>  /**
>   * DeviceClass:
>   * @props: Properties accessing state fields.
> @@ -112,7 +110,7 @@ typedef struct DeviceClass {
>      DeviceUnrealize unrealize;
>
>      /* device state */
> -    const struct VMStateDescription *vmsd;
> +    const VMStateDescription *vmsd;
>
>      /* Private to qdev / bus.  */
>      const char *bus_type;
> @@ -425,7 +423,7 @@ void device_class_set_parent_unrealize(DeviceClass *dc,
>                                         DeviceUnrealize dev_unrealize,
>                                         DeviceUnrealize *parent_unrealize);
>
> -const struct VMStateDescription *qdev_get_vmsd(DeviceState *dev);
> +const VMStateDescription *qdev_get_vmsd(DeviceState *dev);
>
>  const char *qdev_fw_name(DeviceState *dev);
>
> diff --git a/include/migration/vmstate.h b/include/migration/vmstate.h
> index c2bfa7a7f0..1fbfd099dd 100644
> --- a/include/migration/vmstate.h
> +++ b/include/migration/vmstate.h
> @@ -28,7 +28,6 @@
>  #define QEMU_VMSTATE_H
>
>  typedef struct VMStateInfo VMStateInfo;
> -typedef struct VMStateDescription VMStateDescription;
>  typedef struct VMStateField VMStateField;
>
>  /* VMStateInfo allows customized migration of objects that don't fit in
> diff --git a/include/qemu/typedefs.h b/include/qemu/typedefs.h
> index c32efb5b18..9e1283aacf 100644
> --- a/include/qemu/typedefs.h
> +++ b/include/qemu/typedefs.h
> @@ -101,6 +101,7 @@ typedef struct SHPCDevice SHPCDevice;
>  typedef struct SSIBus SSIBus;
>  typedef struct VirtIODevice VirtIODevice;
>  typedef struct Visitor Visitor;
> +typedef struct VMStateDescription VMStateDescription;
>
>  /*
>   * Pointer types
> diff --git a/include/qom/cpu.h b/include/qom/cpu.h
> index 5ee0046b62..ddb91bbaff 100644
> --- a/include/qom/cpu.h
> +++ b/include/qom/cpu.h
> @@ -215,7 +215,7 @@ typedef struct CPUClass {
>      int (*write_elf32_qemunote)(WriteCoreDumpFunction f, CPUState *cpu,
>                                  void *opaque);
>
> -    const struct VMStateDescription *vmsd;
> +    const VMStateDescription *vmsd;
>      const char *gdb_core_xml_file;
>      gchar * (*gdb_arch_name)(CPUState *cpu);
>      const char * (*gdb_get_dynamic_xml)(CPUState *cpu, const char *xmlname);
> @@ -1108,7 +1108,7 @@ bool target_words_bigendian(void);
>  #ifdef NEED_CPU_H
>
>  #ifdef CONFIG_SOFTMMU
> -extern const struct VMStateDescription vmstate_cpu_common;
> +extern const VMStateDescription vmstate_cpu_common;
>  #else
>  #define vmstate_cpu_common vmstate_dummy
>  #endif
> diff --git a/target/alpha/cpu.h b/target/alpha/cpu.h
> index b3e8a823e1..4619530660 100644
> --- a/target/alpha/cpu.h
> +++ b/target/alpha/cpu.h
> @@ -277,7 +277,7 @@ struct AlphaCPU {
>
>
>  #ifndef CONFIG_USER_ONLY
> -extern const struct VMStateDescription vmstate_alpha_cpu;
> +extern const VMStateDescription vmstate_alpha_cpu;
>  #endif
>
>  void alpha_cpu_do_interrupt(CPUState *cpu);
> diff --git a/target/arm/cpu.h b/target/arm/cpu.h
> index 94c990cddb..2cdde6c4bc 100644
> --- a/target/arm/cpu.h
> +++ b/target/arm/cpu.h
> @@ -922,7 +922,7 @@ void arm_cpu_post_init(Object *obj);
>  uint64_t arm_cpu_mp_affinity(int idx, uint8_t clustersz);
>
>  #ifndef CONFIG_USER_ONLY
> -extern const struct VMStateDescription vmstate_arm_cpu;
> +extern const VMStateDescription vmstate_arm_cpu;
>  #endif
>
>  void arm_cpu_do_interrupt(CPUState *cpu);
> diff --git a/target/cris/cpu.h b/target/cris/cpu.h
> index fb14ad51f1..aba0a66474 100644
> --- a/target/cris/cpu.h
> +++ b/target/cris/cpu.h
> @@ -183,7 +183,7 @@ struct CRISCPU {
>
>
>  #ifndef CONFIG_USER_ONLY
> -extern const struct VMStateDescription vmstate_cris_cpu;
> +extern const VMStateDescription vmstate_cris_cpu;
>  #endif
>
>  void cris_cpu_do_interrupt(CPUState *cpu);
> diff --git a/target/hppa/cpu.h b/target/hppa/cpu.h
> index e9fba96be9..4b816cc13a 100644
> --- a/target/hppa/cpu.h
> +++ b/target/hppa/cpu.h
> @@ -334,7 +334,7 @@ bool hppa_cpu_tlb_fill(CPUState *cs, vaddr address, int 
> size,
>  int hppa_get_physical_address(CPUHPPAState *env, vaddr addr, int mmu_idx,
>                                int type, hwaddr *pphys, int *pprot);
>  extern const MemoryRegionOps hppa_io_eir_ops;
> -extern const struct VMStateDescription vmstate_hppa_cpu;
> +extern const VMStateDescription vmstate_hppa_cpu;
>  void hppa_cpu_alarm_timer(void *);
>  int hppa_artype_for_page(CPUHPPAState *env, target_ulong vaddr);
>  #endif
> diff --git a/target/i386/cpu.h b/target/i386/cpu.h
> index 8b3dc5533e..ecd0ec0899 100644
> --- a/target/i386/cpu.h
> +++ b/target/i386/cpu.h
> @@ -1516,7 +1516,7 @@ struct X86CPU {
>
>
>  #ifndef CONFIG_USER_ONLY
> -extern struct VMStateDescription vmstate_x86_cpu;
> +extern VMStateDescription vmstate_x86_cpu;
>  #endif
>
>  /**
> diff --git a/target/lm32/cpu.h b/target/lm32/cpu.h
> index c2bbfa2780..064c6b1267 100644
> --- a/target/lm32/cpu.h
> +++ b/target/lm32/cpu.h
> @@ -195,7 +195,7 @@ struct LM32CPU {
>
>
>  #ifndef CONFIG_USER_ONLY
> -extern const struct VMStateDescription vmstate_lm32_cpu;
> +extern const VMStateDescription vmstate_lm32_cpu;
>  #endif
>
>  void lm32_cpu_do_interrupt(CPUState *cpu);
> diff --git a/target/mips/internal.h b/target/mips/internal.h
> index b2b41a51ab..d5aa5490d3 100644
> --- a/target/mips/internal.h
> +++ b/target/mips/internal.h
> @@ -148,7 +148,7 @@ hwaddr cpu_mips_translate_address(CPUMIPSState *env, 
> target_ulong address,
>  #define cpu_signal_handler cpu_mips_signal_handler
>
>  #ifndef CONFIG_USER_ONLY
> -extern const struct VMStateDescription vmstate_mips_cpu;
> +extern const VMStateDescription vmstate_mips_cpu;
>  #endif
>
>  static inline bool cpu_mips_hw_interrupts_enabled(CPUMIPSState *env)
> diff --git a/target/openrisc/cpu.h b/target/openrisc/cpu.h
> index f23b25262d..61ade1d4f0 100644
> --- a/target/openrisc/cpu.h
> +++ b/target/openrisc/cpu.h
> @@ -333,7 +333,7 @@ int print_insn_or1k(bfd_vma addr, disassemble_info *info);
>  #define cpu_signal_handler cpu_openrisc_signal_handler
>
>  #ifndef CONFIG_USER_ONLY
> -extern const struct VMStateDescription vmstate_openrisc_cpu;
> +extern const VMStateDescription vmstate_openrisc_cpu;
>
>  /* hw/openrisc_pic.c */
>  void cpu_openrisc_pic_init(OpenRISCCPU *cpu);
> diff --git a/target/ppc/cpu-qom.h b/target/ppc/cpu-qom.h
> index be9b4c30c3..a2f202f021 100644
> --- a/target/ppc/cpu-qom.h
> +++ b/target/ppc/cpu-qom.h
> @@ -203,7 +203,7 @@ typedef struct PPCTimebase {
>      int64_t time_of_the_day_ns;
>  } PPCTimebase;
>
> -extern const struct VMStateDescription vmstate_ppc_timebase;
> +extern const VMStateDescription vmstate_ppc_timebase;
>
>  #define VMSTATE_PPC_TIMEBASE_V(_field, _state, _version) {            \
>      .name       = (stringify(_field)),                                \
> diff --git a/target/ppc/cpu.h b/target/ppc/cpu.h
> index c9beba2a5c..4ea33cf696 100644
> --- a/target/ppc/cpu.h
> +++ b/target/ppc/cpu.h
> @@ -1255,7 +1255,7 @@ int ppc32_cpu_write_elf32_note(WriteCoreDumpFunction f, 
> CPUState *cs,
>                                 int cpuid, void *opaque);
>  #ifndef CONFIG_USER_ONLY
>  void ppc_cpu_do_system_reset(CPUState *cs);
> -extern const struct VMStateDescription vmstate_ppc_cpu;
> +extern const VMStateDescription vmstate_ppc_cpu;
>  #endif
>
>  
> /*****************************************************************************/
> diff --git a/target/s390x/cpu.h b/target/s390x/cpu.h
> index a606547b4d..3d9de25f7c 100644
> --- a/target/s390x/cpu.h
> +++ b/target/s390x/cpu.h
> @@ -163,7 +163,7 @@ struct S390CPU {
>
>
>  #ifndef CONFIG_USER_ONLY
> -extern const struct VMStateDescription vmstate_s390_cpu;
> +extern const VMStateDescription vmstate_s390_cpu;
>  #endif
>
>  /* distinguish between 24 bit and 31 bit addressing */
> diff --git a/target/sparc/cpu.h b/target/sparc/cpu.h
> index 8ed2250cd0..0d5b01efe5 100644
> --- a/target/sparc/cpu.h
> +++ b/target/sparc/cpu.h
> @@ -532,7 +532,7 @@ struct SPARCCPU {
>
>
>  #ifndef CONFIG_USER_ONLY
> -extern const struct VMStateDescription vmstate_sparc_cpu;
> +extern const VMStateDescription vmstate_sparc_cpu;
>  #endif
>
>  void sparc_cpu_do_interrupt(CPUState *cpu);


--
Alex Bennée



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