linux-kernel - Re: [PATCH v3] xen: Make VPMU init message look less scary

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Message-ID: <95a600ec-e8db-2ba6-f388-3ea1cf049cf5@suse.com>
Date:	Thu, 18 Aug 2016 08:01:55 +0200
From:	Juergen Gross <jgross@...e.com>
To:	david.vrabel@...rix.com
Cc:	linux-kernel@...r.kernel.org, xen-devel@...ts.xenproject.org,
	boris.ostrovsky@...cle.com
Subject: Re: [PATCH v3] xen: Make VPMU init message look less scary

On 02/08/16 09:22, Juergen Gross wrote:
> The default for the Xen hypervisor is to not enable VPMU in order to
> avoid security issues. In this case the Linux kernel will issue the
> message "Could not initialize VPMU for cpu 0, error -95" which looks
> more like an error than a normal state.
> 
> Change the message to something less scary in case the hypervisor
> returns EOPNOTSUPP or ENOSYS when trying to activate VPMU.
> 
> Signed-off-by: Juergen Gross <jgross@...e.com>

David, could you take this patch, please?


Juergen