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Re: [Xen-devel] [PATCH 0/2] Add hugetlb support for PV
| To: | "Dave McCracken" <dcm@xxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] [PATCH 0/2] Add hugetlb support for PV |
| From: | "Jan Beulich" <jbeulich@xxxxxxxxxx> |
| Date: | Thu, 24 Jul 2008 15:23:42 +0100 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Thu, 24 Jul 2008 07:23:38 -0700 |
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| In-reply-to: | <200807240845.08753.dcm@xxxxxxxx> |
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| References: | <200807240845.08753.dcm@xxxxxxxx> |
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>>> Dave McCracken <dcm@xxxxxxxx> 24.07.08 15:45 >>> > >Here is a set of small patches that enables hugetlb on PV machines. They are >against xen-unstable and linux-2.6.18-xen. > >The patches are specifically for x86_64. > >I originally had these patches working back in May, but recently for some >reason my machine now refuses to boot the baseline xen-unstable, so I've been >unable to verify them. However, they should still work. > >Comments, bug reports, and suggestions are welcome. I must be missing something, but I can't see how you guarantee the super pages to be contiguous in machine memory. And even if you did, the hypervisor would still need to do accounting on all the 4k portions a super page consists of when it gets mapped/unmapped. Jan _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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