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From: Keir Fraser <keir@xen.org>
To: Jan Beulich <JBeulich@suse.com>, xen-devel <xen-devel@lists.xen.org>
Subject: Re: [PATCH] x86/ucode: don't crash during AP bringup on non-Intel, non-AMD CPUs
Date: Thu, 16 Aug 2012 16:28:49 +0100	[thread overview]
Message-ID: <CC52D041.4973A%keir@xen.org> (raw)
In-Reply-To: <502D2C3A0200007800095918@nat28.tlf.novell.com>

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

> Signed-off-by: Jan Beulich <jbeulich@suse.com>

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

Anyhow,
Acked-by: Keir Fraser <keir@xen.org>

> --- 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);
> 
> 
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xen.org
> http://lists.xen.org/xen-devel

  reply	other threads:[~2012-08-16 15:28 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-08-16 15:22 [PATCH] x86/ucode: don't crash during AP bringup on non-Intel, non-AMD CPUs Jan Beulich
2012-08-16 15:28 ` Keir Fraser [this message]
2012-08-16 15:58   ` Jan Beulich
2012-08-16 16:25     ` Keir Fraser

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