Re: [RFC v9 27/32] accel: replace struct CpusAccel with AccelOpsClass

[Alex Bennée]

Claudio Fontana <cfontana@suse.de> writes:

> centralize the registration of the cpus.c module
> accelerator operations in accel/accel-softmmu.c
>
> Signed-off-by: Claudio Fontana <cfontana@suse.de>
<snip>
> diff --git a/accel/tcg/tcg-cpus.c b/accel/tcg/tcg-cpus.c
> index e335f9f155..38a58ab271 100644
> --- a/accel/tcg/tcg-cpus.c
> +++ b/accel/tcg/tcg-cpus.c
> @@ -35,6 +35,9 @@
>  #include "hw/boards.h"
>  
>  #include "tcg-cpus.h"
> +#include "tcg-cpus-mttcg.h"
> +#include "tcg-cpus-rr.h"
> +#include "tcg-cpus-icount.h"
>  
>  /* common functionality among all TCG variants */
>  
> @@ -80,3 +83,43 @@ void tcg_cpus_handle_interrupt(CPUState *cpu, int mask)
>          qatomic_set(&cpu_neg(cpu)->icount_decr.u16.high, -1);
>      }
>  }
> +
> +static void tcg_cpus_ops_init(AccelOpsClass *ops)
> +{
> +    if (qemu_tcg_mttcg_enabled()) {
> +        ops->create_vcpu_thread = mttcg_start_vcpu_thread;
> +        ops->kick_vcpu_thread = mttcg_kick_vcpu_thread;
> +        ops->handle_interrupt = tcg_cpus_handle_interrupt;
> +
> +    } else if (icount_enabled()) {
> +        ops->create_vcpu_thread = rr_start_vcpu_thread;
> +        ops->kick_vcpu_thread = rr_kick_vcpu_thread;
> +        ops->handle_interrupt = icount_handle_interrupt;
> +        ops->get_virtual_clock = icount_get;
> +        ops->get_elapsed_ticks = icount_get;
> +
> +    } else {
> +        ops->create_vcpu_thread = rr_start_vcpu_thread;
> +        ops->kick_vcpu_thread = rr_kick_vcpu_thread;
> +        ops->handle_interrupt = tcg_cpus_handle_interrupt;
> +    }
> +}

Aren't we going backwards here by having a global function aware of the
different accelerator types rather than encapsulating this is the
particular accelerator machinery?

<snip>

-- 
Alex Bennée