Fan, Huaxiang
2012-Jul-16 10:00 UTC
4G limitation for PV domU when PCI-passthru is applied
Hi gurus, I have setup a prototype with below configurations: Hardware: Dell R210 NICs: Broadcom NetXtreme II BCN5709/5716 (w/o FLR) Xen: xen 4.1.2 Kernel: 3.6.32.57 (final version of xen community) Distribution: Centos 6.2 (upgraded to above kernel) When I was trying to PCI passthru 1 or 2 NICs to a domU assigned with 6G (>4G) memory, the PCI activation failed due to BAR 0 collision. Is e820_host option in xen 4.2 relevant to this? Actually I upgrade the xen to 4.2-unstable, the domU could boot with PCI passthru succeed, but the ''cat /proc/meminfo'' indicated the total memory had been shrink to 3G. Any thoughts? Thanks in advance HUAXIANG FAN Software Engineer II WEBSENSE NETWORK SECURITY TECHNOLOGY R&D (BEIJING) CO. LTD. ph: +8610.5884.4327 fax: +8610.5884.4727 www.websense.cn<http://www.websense.cn> Websense TRITON(tm) For Essential Information Protection(tm) Web Security<http://www.websense.com/content/Regional/SCH/WebSecurityOverview.aspx> | Data Security<http://www.websense.com/content/Regional/SCH/DataSecurity.aspx> | Email Security<http://www.websense.com/content/Regional/SCH/MessagingSecurity.aspx> Protected by Websense Hosted Email Security -- www.websense.com _______________________________________________ Xen-users mailing list Xen-users@lists.xen.org http://lists.xen.org/xen-users