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[Xen-ia64-devel] _OSI(Linux) == false
| To: | xen-ia64-devel <xen-ia64-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-ia64-devel] _OSI(Linux) == false |
| From: | Alex Williamson <alex.williamson@xxxxxx> |
| Date: | Tue, 14 Aug 2007 16:44:23 -0600 |
| Delivery-date: | Tue, 14 Aug 2007 15:50:35 -0700 |
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| Organization: | HP OSLO R&D |
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This changeset was just brought to my attention: http://www.kernel.org/hg/linux-2.6/rev/7f6bc8a8fb19 In short, newer upstream kernels will return True for _OSI(Windows) and False for _OSI(Linux). This will cause Linux VT-i domains to get incorrectly identified as Windows guests and do bad things with region 4 & 5 mapping. There is a DMI interface available that we could use to automatically enable _OSI(Linux), but I think that means we'd need to generate a DMI table for HVM domains. Sounds like a pain, but maybe it's not actually that hard. Any other thoughts on how we could continue to detect the OS on HVM domains for optimizations? Thanks, Alex -- Alex Williamson HP Open Source & Linux Org. _______________________________________________ Xen-ia64-devel mailing list Xen-ia64-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-ia64-devel |
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