From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Di Giacomo Subject: Re: PCI passthrough for domU allocated with more than 4G memory Date: Mon, 03 Sep 2012 18:25:37 +0200 Message-ID: <5044DA01.9070201@dadigi.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: xen-devel@lists.xen.org List-Id: xen-devel@lists.xenproject.org -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Same problem here. I'm using gentoo with kernel 3.5.3 (gentoo-sources) and XEN 4.1.2 as dom0. DomU is also gentoo with the same kernel version. When I assign more than 4G memory to this domU, the memory for the passed-through Intel-gigabit-nic cannot be allocated and the initialization of the device fails. With 3968M memory assigned everything works fine. Assigning 8GB RAM to domU works without any problems, when I use the old kernel-version 2.6.34 (xen-sources) in domU. Regards Daniel -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://www.enigmail.net/ iQIcBAEBAgAGBQJQRNn9AAoJEO8IGUBgh06fhtwQAJ0eocxHWeiEJSROM5SObIAm V/ZulEaLOg/XmavL0KWGeNgHA3N/JtAvKMvpzLxjsGszFFD3h9ndtX0eRHnQPYC3 38tMNjIGllUzEiHl5ESCnaChrekI6/hH7NYqoMmXndbJkexUmlaJyRd6Rgy4SIhn k6x2nwYG9gIg6wMVbQadbosYxOPKdKRosL1mglBuzK/J/c5hdqzxK4j6DfMVHonx aXw1B1/Ga7zxwG9651bheCrDbXi8yVqadGoXjXZWhp2vQSxwh4k2QgOaTY5vgOjJ UTkuhtlrAI3ZdyCHpLq8dd8oS6QUyQmjJdbQe5kTMufA5GGl4b//zU4pDieOqkFp YCAPghCDk+l691Lg/UkvVgj4jgbTDsvcYtF3uM8h+dOs4L1R36WgSsuAqvwT+LjH DWc5g7h6VsML4J5gcXsG0IvLycHvWhpiDbJD8gp0qzcXAamMRcBkAJhVal4JnwmI 2f4WMPyVEGjkRUgV22AOgNTjflxG9Rla9CbnPamYj4yVh47lsRix+hlZbrPUl3MW V9UsKUpt+E6dCl56dq7YziZkZj9iLABG+j4rKNk93DTJMgPbwXck4BCXIrztm+s+ Y3QAh+5k0aM/Om3nUftcYrF3z8TDHWTCCXA/JRQ6G/PAo+K19pom6KpjanZQ41IC G0t3eBJdeJpCNNvgtXiM =QheK -----END PGP SIGNATURE-----