Re: [Xen-devel] [PATCH] x86/ucode: don't crash during AP bringup on non-Intel, non-AMD CPUs

[Keir Fraser <keir@xxxxxxx>]

On 16/08/2012 16:22, "Jan Beulich" <JBeulich@xxxxxxxx> wrote:

> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>

Do we support any such processors? Newer VIA processors maybe?

Anyhow,
Acked-by: Keir Fraser <keir@xxxxxxx>

> --- a/xen/arch/x86/microcode.c
> +++ b/xen/arch/x86/microcode.c
> @@ -109,6 +109,9 @@ int microcode_resume_cpu(int cpu)
>      struct cpu_signature nsig;
>      unsigned int cpu2;
>  
> +    if ( !microcode_ops )
> +        return 0;
> +
>      spin_lock(&microcode_mutex);
>  
>      err = microcode_ops->collect_cpu_info(cpu, &uci->cpu_sig);
> 
> 
> 
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