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Re: [Xen-devel] Is there a way to add GDT entries without having a secon
| To: | Kip Macy <kip.macy@xxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] Is there a way to add GDT entries without having a second page? |
| From: | Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> |
| Date: | Fri, 6 May 2005 07:10:10 +0100 |
| Cc: | xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx> |
| Delivery-date: | Fri, 06 May 2005 06:12:16 +0000 |
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On 6 May 2005, at 01:50, Kip Macy wrote: I can add entries incrementally to the GDT by having a second page frame lying around copying from the current one to the unused one and then switching between them for updates, but is there a more elegant way? What's the problem? You want a 'writable GDT'? This is very doable since we have the emulator, but in Linux it was not hard to patch the places that write to the GDT to do a hypercall instead. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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