Re: [Qemu-devel] [PATCH for-1.4 qom-cpu 1/9] kvm: Create kvm_arch_vcpu_id() function

[Gleb Natapov]

On Tue, Jan 22, 2013 at 06:25:01PM -0200, Eduardo Habkost wrote:
> This will allow each architecture to define how the VCPU ID is set on
> the KVM_CREATE_VCPU ioctl call.
> 
> Signed-off-by: Eduardo Habkost <address@hidden>
Acked-by: Gleb Natapov <address@hidden>

> ---
> Cc: address@hidden
> Cc: Michael S. Tsirkin <address@hidden>
> Cc: Gleb Natapov <address@hidden>
> Cc: Marcelo Tosatti <address@hidden>
> 
> Changes v2:
>  - Get CPUState as argument instead of CPUArchState
> 
> Changes v3:
>  - Convert KVM_CREATE_VCPU ioctl() argument to void*, so
>    the argument type matches the type expected by kvm_vm_ioctl()
> ---
>  include/sysemu/kvm.h | 3 +++
>  kvm-all.c            | 2 +-
>  target-i386/kvm.c    | 5 +++++
>  target-ppc/kvm.c     | 5 +++++
>  target-s390x/kvm.c   | 5 +++++
>  5 files changed, 19 insertions(+), 1 deletion(-)
> 
> diff --git a/include/sysemu/kvm.h b/include/sysemu/kvm.h
> index 22acf91..384ee66 100644
> --- a/include/sysemu/kvm.h
> +++ b/include/sysemu/kvm.h
> @@ -196,6 +196,9 @@ int kvm_arch_init(KVMState *s);
>  
>  int kvm_arch_init_vcpu(CPUState *cpu);
>  
> +/* Returns VCPU ID to be used on KVM_CREATE_VCPU ioctl() */
> +unsigned long kvm_arch_vcpu_id(CPUState *cpu);
> +
>  void kvm_arch_reset_vcpu(CPUState *cpu);
>  
>  int kvm_arch_on_sigbus_vcpu(CPUState *cpu, int code, void *addr);
> diff --git a/kvm-all.c b/kvm-all.c
> index 6278d61..363a358 100644
> --- a/kvm-all.c
> +++ b/kvm-all.c
> @@ -222,7 +222,7 @@ int kvm_init_vcpu(CPUState *cpu)
>  
>      DPRINTF("kvm_init_vcpu\n");
>  
> -    ret = kvm_vm_ioctl(s, KVM_CREATE_VCPU, cpu->cpu_index);
> +    ret = kvm_vm_ioctl(s, KVM_CREATE_VCPU, (void *)kvm_arch_vcpu_id(cpu));
>      if (ret < 0) {
>          DPRINTF("kvm_create_vcpu failed\n");
>          goto err;
> diff --git a/target-i386/kvm.c b/target-i386/kvm.c
> index 3acff40..5f3f789 100644
> --- a/target-i386/kvm.c
> +++ b/target-i386/kvm.c
> @@ -411,6 +411,11 @@ static void cpu_update_state(void *opaque, int running, 
> RunState state)
>      }
>  }
>  
> +unsigned long kvm_arch_vcpu_id(CPUState *cpu)
> +{
> +    return cpu->cpu_index;
> +}
> +
>  int kvm_arch_init_vcpu(CPUState *cs)
>  {
>      struct {
> diff --git a/target-ppc/kvm.c b/target-ppc/kvm.c
> index 2f4f068..2c64c63 100644
> --- a/target-ppc/kvm.c
> +++ b/target-ppc/kvm.c
> @@ -384,6 +384,11 @@ static inline void kvm_fixup_page_sizes(PowerPCCPU *cpu)
>  
>  #endif /* !defined (TARGET_PPC64) */
>  
> +unsigned long kvm_arch_vcpu_id(CPUState *cpu)
> +{
> +    return cpu->cpu_index;
> +}
> +
>  int kvm_arch_init_vcpu(CPUState *cs)
>  {
>      PowerPCCPU *cpu = POWERPC_CPU(cs);
> diff --git a/target-s390x/kvm.c b/target-s390x/kvm.c
> index add6a58..99deddf 100644
> --- a/target-s390x/kvm.c
> +++ b/target-s390x/kvm.c
> @@ -76,6 +76,11 @@ int kvm_arch_init(KVMState *s)
>      return 0;
>  }
>  
> +unsigned long kvm_arch_vcpu_id(CPUState *cpu)
> +{
> +    return cpu->cpu_index;
> +}
> +
>  int kvm_arch_init_vcpu(CPUState *cpu)
>  {
>      int ret = 0;
> -- 
> 1.8.1

--
                        Gleb.