Re: [Qemu-devel] [PATCH v2 14/17] accel: Pass MachineState object to accel init functions

[Paolo Bonzini <pbonzini@redhat.com>]

Il 29/08/2014 22:31, Eduardo Habkost ha scritto:
> Most of the machine options and machine state information is in the
> MachineState object, not on the MachineClass. This will allow init
> functions to use the MachineState object directly instead of
> qemu_get_machine_opts() or the current_machine global.
> 
> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
> ---
>  hw/core/accel.c         | 11 ++++++-----
>  include/hw/accel.h      |  4 ++--
>  include/qemu/typedefs.h |  1 +
>  kvm-all.c               |  3 ++-
>  qtest.c                 |  2 +-
>  vl.c                    |  2 +-
>  xen-common.c            |  2 +-
>  7 files changed, 14 insertions(+), 11 deletions(-)
> 
> diff --git a/hw/core/accel.c b/hw/core/accel.c
> index 55378f3..98fcf0d 100644
> --- a/hw/core/accel.c
> +++ b/hw/core/accel.c
> @@ -24,6 +24,7 @@
>   */
>  
>  #include "hw/accel.h"
> +#include "hw/boards.h"
>  #include "qemu-common.h"
>  #include "sysemu/arch_init.h"
>  #include "sysemu/sysemu.h"
> @@ -35,7 +36,7 @@
>  int tcg_tb_size;
>  static bool tcg_allowed = true;
>  
> -static int tcg_init(MachineClass *mc)
> +static int tcg_init(MachineState *ms)
>  {
>      tcg_exec_init(tcg_tb_size * 1024 * 1024);
>      return 0;
> @@ -57,18 +58,18 @@ static AccelClass *accel_find(const char *opt_name)
>      return ac;
>  }
>  
> -static int accel_init_machine(AccelClass *acc, MachineClass *mc)
> +static int accel_init_machine(AccelClass *acc, MachineState *ms)
>  {
>      int ret;
>      *(acc->allowed) = true;
> -    ret = acc->init_machine(mc);
> +    ret = acc->init_machine(ms);
>      if (ret < 0) {
>          *(acc->allowed) = false;
>      }
>      return ret;
>  }
>  
> -int configure_accelerator(MachineClass *mc)
> +int configure_accelerator(MachineState *ms)
>  {
>      const char *p;
>      char buf[10];
> @@ -98,7 +99,7 @@ int configure_accelerator(MachineClass *mc)
>                     acc->name);
>              continue;
>          }
> -        ret = accel_init_machine(acc, mc);
> +        ret = accel_init_machine(acc, ms);
>          if (ret < 0) {
>              init_failed = true;
>              fprintf(stderr, "failed to initialize %s: %s\n",
> diff --git a/include/hw/accel.h b/include/hw/accel.h
> index 8812cda..997720f 100644
> --- a/include/hw/accel.h
> +++ b/include/hw/accel.h
> @@ -39,7 +39,7 @@ typedef struct AccelClass {
>      const char *opt_name;
>      const char *name;
>      int (*available)(void);
> -    int (*init_machine)(MachineClass *mc);
> +    int (*init_machine)(MachineState *ms);
>      bool *allowed;
>  } AccelClass;
>  
> @@ -57,6 +57,6 @@ typedef struct AccelClass {
>  
>  extern int tcg_tb_size;
>  
> -int configure_accelerator(MachineClass *mc);
> +int configure_accelerator(MachineState *ms);
>  
>  #endif
> diff --git a/include/qemu/typedefs.h b/include/qemu/typedefs.h
> index 5f20b0e..04df51b 100644
> --- a/include/qemu/typedefs.h
> +++ b/include/qemu/typedefs.h
> @@ -32,6 +32,7 @@ typedef struct MemoryMappingList MemoryMappingList;
>  
>  typedef struct QEMUMachine QEMUMachine;
>  typedef struct MachineClass MachineClass;
> +typedef struct MachineState MachineState;
>  typedef struct NICInfo NICInfo;
>  typedef struct HCIInfo HCIInfo;
>  typedef struct AudioState AudioState;
> diff --git a/kvm-all.c b/kvm-all.c
> index dd03dc4..9815eaf 100644
> --- a/kvm-all.c
> +++ b/kvm-all.c
> @@ -1371,8 +1371,9 @@ static int kvm_max_vcpus(KVMState *s)
>      return (ret) ? ret : kvm_recommended_vcpus(s);
>  }
>  
> -static int kvm_init(MachineClass *mc)
> +static int kvm_init(MachineState *ms)
>  {
> +    MachineClass *mc = MACHINE_GET_CLASS(ms);
>      static const char upgrade_note[] =
>          "Please upgrade to at least kernel 2.6.29 or recent kvm-kmod\n"
>          "(see http://sourceforge.net/projects/kvm).\n";
> diff --git a/qtest.c b/qtest.c
> index 4051868..0dbcb58 100644
> --- a/qtest.c
> +++ b/qtest.c
> @@ -520,7 +520,7 @@ static void configure_qtest_icount(const char *options)
>      qemu_opts_del(opts);
>  }
>  
> -static int qtest_init_accel(MachineClass *mc)
> +static int qtest_init_accel(MachineState *ms)
>  {
>      configure_qtest_icount("0");
>      return 0;
> diff --git a/vl.c b/vl.c
> index 911de91..8c52092 100644
> --- a/vl.c
> +++ b/vl.c
> @@ -4177,7 +4177,7 @@ int main(int argc, char **argv, char **envp)
>          exit(1);
>      }
>  
> -    configure_accelerator(machine_class);
> +    configure_accelerator(current_machine);
>  
>      if (qtest_chrdev) {
>          Error *local_err = NULL;
> diff --git a/xen-common.c b/xen-common.c
> index 246d76b..5616f0c 100644
> --- a/xen-common.c
> +++ b/xen-common.c
> @@ -110,7 +110,7 @@ static void xen_change_state_handler(void *opaque, int running,
>      }
>  }
>  
> -static int xen_init(MachineClass *mc)
> +static int xen_init(MachineState *ms)
>  {
>      xen_xc = xen_xc_interface_open(0, 0, 0);
>      if (xen_xc == XC_HANDLER_INITIAL_VALUE) {
> 

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>