Re: [Xen-devel] [PATCH v2 10/12] xen/mce: add support of vLMCE injection to XEN_MC_inject_v2

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 17.03.17 at 07:46, <haozhong.zhang@xxxxxxxxx> wrote:
> --- a/xen/arch/x86/cpu/mcheck/mce.c
> +++ b/xen/arch/x86/cpu/mcheck/mce.c
> @@ -1546,6 +1546,21 @@ long do_mca(XEN_GUEST_HANDLE_PARAM(xen_mc_t) u_xen_mc)
>              }
>              break;
>  
> +        case XEN_MC_INJECT_TYPE_LMCE:
> +            if ( !lmce_support )
> +            {
> +                ret = x86_mcerr("No LMCE support in platform", -EINVAL);
> +                break;
> +            }
> +            /* Ensure at most one CPU is specified. */
> +            if ( nr_cpu_ids > cpumask_next(cpumask_first(cpumap), cpumap) )
> +            {
> +                ret = x86_mcerr("More than one CPU specified", -EINVAL);
> +                break;
> +            }
> +            on_selected_cpus(cpumap, x86_mc_mceinject, NULL, 1);
> +            break;

Please reject XEN_MC_INJECT_CPU_BROADCAST being used
together with this new type.

Jan


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