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

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Message-ID: <57BDDDA4.6010002@citrix.com>
Date:   Wed, 24 Aug 2016 18:47:16 +0100
From:   David Vrabel <david.vrabel@...rix.com>
To:     Juergen Gross <jgross@...e.com>, <linux-kernel@...r.kernel.org>,
        <xen-devel@...ts.xenproject.org>
CC:     <boris.ostrovsky@...cle.com>, <david.vrabel@...rix.com>
Subject: Re: [Xen-devel] [PATCH v3] xen: Make VPMU init message look less
 scary

On 02/08/16 08:22, 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.

Applied to for-linus-4.9, thanks.

David