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Re: [Xen-devel] [XEN PATCH 1/2] hvm: Support more than 32 VCPUS when migrating.



>>> On 08.04.14 at 19:25, <konrad@xxxxxxxxxx> wrote:
> --- a/xen/arch/x86/hvm/hvm.c
> +++ b/xen/arch/x86/hvm/hvm.c
> @@ -3470,6 +3470,9 @@ static long hvm_vcpu_op(
>      case VCPUOP_stop_singleshot_timer:
>      case VCPUOP_register_vcpu_info:
>      case VCPUOP_register_vcpu_time_memory_area:
> +    case VCPUOP_down:
> +    case VCPUOP_up:
> +    case VCPUOP_is_up:

This, if I checked it properly, leaves only VCPUOP_initialise,
VCPUOP_send_nmi, and VCPUOP_get_physid disallowed for HVM.
None of which look inherently bad to be used by HVM (but
VCPUOP_initialise certainly would need closer checking), so I
wonder whether either the wrapper shouldn't be dropped altogether
or at least be converted from a white list approach to a black list one.

Jan


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