From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sergio Monteiro Basto Subject: Re: what is MCFG area ? Date: Wed, 07 Jun 2006 14:33:12 +0100 Message-ID: <1149687192.3011.3.camel@localhost.localdomain> References: <1149637549.3057.4.camel@localhost.portugal> <20060607041525.GA10931@tangens.sinus.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from relay2.ptmail.sapo.pt ([212.55.154.22]:51369 "HELO sapo.pt") by vger.kernel.org with SMTP id S932067AbWFGNdP (ORCPT ); Wed, 7 Jun 2006 09:33:15 -0400 In-Reply-To: <20060607041525.GA10931@tangens.sinus.cz> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Pavel Troller Cc: linux-acpi@vger.kernel.org On Wed, 2006-06-07 at 06:15 +0200, Pavel Troller wrote: > > On my buggy computer i get=20 > > cat dmesg09 | grep "MM\|MCFG" > > ACPI: MCFG (v001 A M I OEMMCFG 0x05000602 MSFT 0x00000097) @ 0x00= 0000003ffb0410 > > PCI: BIOS Bug: MCFG area is not E820-reserved > > PCI: Not using MMCONFIG. > > PCI-DMA: Disabling IOMMU. >=20 > I'm getting exactly the same messages, just the numbers in the MCFG l= ine are > different: > root@arcus:~# dmesg | grep "MM\|MCFG" > ACPI: MCFG (v001 A M I OEMMCFG 0x11000524 MSFT 0x00000097) @ 0x0000= 00003f7d03f0 > PCI: BIOS Bug: MCFG area is not E820-reserved > PCI: Not using MMCONFIG. > PCI-DMA: Disabling IOMMU. >=20 > It's on a MSI motherboard with Intel 945 chipset (MS-7210). The machi= ne > otherwise works very well. > The "Disabling IOMMU" message I'm getting also on another, Nvidia N= =464/Opteron > based board, without this MCFG bug. I think it's unrelated and becaus= e Linux > properly detected the BIOS bug and probably fixed it, I think the MCF= G message > is harmless.=20 > With regards, Pavel Troller yes, IOMMU is a different thing some AGPs have it. But I don't what is too. S=C3=A9rgio M. B.=20 - To unsubscribe from this list: send the line "unsubscribe linux-acpi" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html