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Re: [Xen-devel] Problem: Pattern with vertical colored lines on the dom0

 To: "Kay, Allen M" Re: [Xen-devel] Problem: Pattern with vertical colored lines on the dom0 screen Dietmar Hahn Thu, 30 Sep 2010 09:58:25 +0200 "xen-devel@xxxxxxxxxxxxxxxxxxx" , Keir Fraser , Konrad Rzeszutek Wilk , "Han, Weidong" , Pasi, Jean Guyader Thu, 30 Sep 2010 00:59:18 -0700 v=1; a=rsa-sha256; c=simple/simple; d=ts.fujitsu.com; i=dietmar.hahn@xxxxxxxxxxxxxx; q=dns/txt; s=s1536b; t=1285833510; x=1317369510; h=from:to:subject:date:cc:references:in-reply-to: mime-version:content-transfer-encoding:message-id; z=From:=20Dietmar=20Hahn=20 |To:=20"Kay,=20Allen=20M"=20 |Subject:=20Re:=20[Xen-devel]=20Problem:=20Pattern=20with =20vertical=20colored=20lines=20on=20the=20dom0=20screen |Date:=20Thu,=2030=20Sep=202010=2009:58:25=20+0200|Cc:=20 Konrad=20Rzeszutek=20Wilk=20,=0D =0A=20Jean=20Guyader=20,=0D=0A=20 "xen-devel@xxxxxxxxxxxxxxxxxxx"=20,=0D=0A=20Pasi=20=0D=0A=20=3D?iso-8859-15?q?K=3DE 4rkk=3DE4inen?=3D=20,=0D=0A=20"Han,=20Weido ng"=20,=0D=0A=20Keir=20Fraser=20|References:=20<201009171520.11903.dietmar.ha hn@xxxxxxxxxxxxxx>=20<20100927164706.GC4741@xxxxxxxxxxxx> =20<987664A83D2D224EAE907B061CE93D5301605D89C0@orsmsx505. amr.corp.intel.com>|In-Reply-To:=20<987664A83D2D224EAE907 B061CE93D5301605D89C0@xxxxxxxxxxxxxxxxxxxxxxxxxxxx> |MIME-Version:=201.0|Content-Transfer-Encoding:=207bit |Message-Id:=20<201009300958.26368.dietmar.hahn@xxxxxxxxx u.com>; bh=HBqRTVqOz6hEzzdnlsrnmvsrAn93bsvcg7delkcHQSk=; b=B7s9iTJki/D02ilRqDJWtVxnZQnINijaqoNLW2rX4WiJ7fXNkGNNLWWk jBse8VFxyuRngRAI7CAWbN4FQF2QwJjbjE5nwqEHR6KmONAQW6+jJAjOc gPVfVAVa/Z9GTD7vFbl0pKoYHHS5IrecFnNBniAK8deh3rALfluo+mImU 1nSn6YSe1UHl1LAmdHaIyiUDihesFUcfG7DFpM682OxCCcLh/sT7HW3VT r2z9deA0AvylP+LSql4onpCIDZAhO; s=s1536a; d=ts.fujitsu.com; c=nofws; q=dns; h=X-SBRSScore:X-IronPort-AV:Received:X-IronPort-AV: Received:Received:From:To:Subject:Date:User-Agent:Cc: References:In-Reply-To:MIME-Version:Content-Type: Content-Transfer-Encoding:Message-Id; b=NURyQq3pEL0FfjnipFQACzLZrnDwPForlRvjn5QsWtuwsaNhdtTMZzK3 YcDE4Mdf45cK0HtZ3EhgFrPzugb0VzO9/jxBa5qHH9kuL2vYc+jAnrZcc OHzX9wied1uQN6KykKXz04Um1BY2s+kqgCAYmagkmUAu2QMMopjCKObc3 SfPxiWC6ey1bPJMO4f8+DiClv6mswoRd3mn9+9/zSPRe6u42mQWnjzLX/ 5Ql5Bm5rgAcKWpJaAXvh1HuapjsAE; www-data@xxxxxxxxxxxxxxxxxxx <987664A83D2D224EAE907B061CE93D5301605D89C0@xxxxxxxxxxxxxxxxxxxxxxxxxxxx> Xen developer discussion , , <201009171520.11903.dietmar.hahn@xxxxxxxxxxxxxx> <20100927164706.GC4741@xxxxxxxxxxxx> <987664A83D2D224EAE907B061CE93D5301605D89C0@xxxxxxxxxxxxxxxxxxxxxxxxxxxx> xen-devel-bounces@xxxxxxxxxxxxxxxxxxx KMail/1.13.5 (Linux/2.6.34.7-0.3-xen; KDE/4.4.4; x86_64; ; )
 ```Hi Allen, Am 30.09.2010 schrieb Kay, Allen M: > Attached patch fixes dom0 graphics problem on Levnovo T410 when VT-d is > enabled. The patch is derived from a similar quirk in Linux kernel by David > Woodhouse and Adam Jackson. It checks for VT enabling bit in IGD GGC > register. If VT is not enabled correctly in the IGD, Xen does not enable > VT-d translation for IGD VT-d engine. In case where iommu boot parameter is > set to force, Xen calls panic(). This worked for my Fujitsu S760 too! Thanks. Dietmar. > > Signed-off-by: Allen Kay allen.m.kay@xxxxxxxxx > > -----Original Message----- > From: Konrad Rzeszutek Wilk [mailto:konrad.wilk@xxxxxxxxxx] > Sent: Monday, September 27, 2010 9:47 AM > To: Dietmar Hahn; Han, Weidong; Kay, Allen M > Cc: Jean Guyader; xen-devel@xxxxxxxxxxxxxxxxxxx > Subject: Re: [Xen-devel] Problem: Pattern with vertical colored lines on the > dom0 screen > > On Mon, Sep 27, 2010 at 02:06:26PM +0200, Dietmar Hahn wrote: > > Hi Jean, > > > > many thanks for this hint! This saved me a lot of time searching through > > the specs. > > > > Am 24.09.2010 schrieb Jean Guyader: > > > The problem we saw with that the bit 10 of the GCC (offset 0x52 on the > > > PCH config space) > > > wasn't set after the bios. This bit probably enable the shadow GTT > > > (created with the GTT + vt-d). > > > > Yes, the same problem here! > > I found the following patch, maybe something similar would help here too? > > https://patchwork.kernel.org/patch/132771 > > There looks to be another in the upstream kernels: > > check_tylersburg_isoch > > > > So I have to hit the bios development :-( > > Well, we should probably provide a quirk check in the Xen code. > > Copying the Intel folks to see if they any ideas on adding this in the Intel > VT-d > code paths. Or they might have already a patch ready for this? > > > > > The vertical stripes means GTT fault. > > > > > > Jean > > > > Many thanks! > > Dietmar. > > > -- Company details: http://ts.fujitsu.com/imprint.html _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel ```
 Current Thread Re: [Xen-devel] Problem: Pattern with vertical colored lines on the dom0 screen, (continued) Re: [Xen-devel] Problem: Pattern with vertical colored lines on the dom0 screen, Jean Guyader Re: [Xen-devel] Problem: Pattern with vertical colored lines on the dom0 screen, Dietmar Hahn Re: [Xen-devel] Problem: Pattern with vertical colored lines on the dom0 screen, Jean Guyader Re: [Xen-devel] Problem: Pattern with vertical colored lines on the dom0 screen, Dietmar Hahn Re: [Xen-devel] Problem: Pattern with vertical colored lines on the dom0 screen, Konrad Rzeszutek Wilk RE: [Xen-devel] Problem: Pattern with vertical colored lines on the dom0 screen, Kay, Allen M Re: [Xen-devel] Problem: Pattern with vertical colored lines on the dom0 screen, Pasi Kärkkäinen RE: [Xen-devel] Problem: Pattern with vertical colored lines on the dom0 screen, Kay, Allen M Re: [Xen-devel] Problem: Pattern with vertical colored lines on the dom0 screen, Pasi Kärkkäinen RE: [Xen-devel] Problem: Pattern with vertical colored lines on the dom0 screen, Kay, Allen M Re: [Xen-devel] Problem: Pattern with vertical colored lines on the dom0 screen, Dietmar Hahn <=