From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Jan Beulich" <JBeulich@suse.com>
Subject: Re: [PATCH] VT-d: add iommu=igfx_off option to
 workaround graphics issues
Date: Mon, 20 Jul 2015 09:46:44 +0100
Message-ID: <55ACD1940200007800092EF8@mail.emea.novell.com>
References: <1437159952-4134-1-git-send-email-lantw44@gmail.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
Return-path: <xen-devel-bounces@lists.xen.org>
In-Reply-To: <1437159952-4134-1-git-send-email-lantw44@gmail.com>
Content-Disposition: inline
List-Unsubscribe: <http://lists.xen.org/cgi-bin/mailman/options/xen-devel>,
	<mailto:xen-devel-request@lists.xen.org?subject=unsubscribe>
List-Post: <mailto:xen-devel@lists.xen.org>
List-Help: <mailto:xen-devel-request@lists.xen.org?subject=help>
List-Subscribe: <http://lists.xen.org/cgi-bin/mailman/listinfo/xen-devel>,
	<mailto:xen-devel-request@lists.xen.org?subject=subscribe>
Sender: xen-devel-bounces@lists.xen.org
Errors-To: xen-devel-bounces@lists.xen.org
To: Ting-Wei Lan <lantw44@gmail.com>
Cc: Yang Zhang <yang.z.zhang@intel.com>, Kevin Tian <kevin.tian@intel.com>, xen-devel@lists.xen.org
List-Id: xen-devel@lists.xenproject.org

>>> On 17.07.15 at 21:05, <lantw44@gmail.com> wrote:
> @@ -87,6 +88,8 @@ static void __init parse_iommu_param(char *s)
>              force_iommu = val;
>          else if ( !strcmp(s, "workaround_bios_bug") )
>              iommu_workaround_bios_bug = val;
> +        else if ( !strcmp(s, "igfx_off") )
> +            iommu_igfx_off = val;

Just FTR (moot with both Kevin's and Andrew's replies, which I agree
with) this should be "igfx", with the intended use then being
"iommu=no-igfx".

Jan