| Date | Tue, 27 Feb 2007 11:11:43 +0100 | From | Ingo Molnar <> | Subject | Re: [patch 06/26] Xen-paravirt_ops: paravirt_ops: allocate a fixmap slot |
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* Jeremy Fitzhardinge <jeremy@goop.org> wrote:
> Allocate a fixmap slot for use by a paravirt_ops implementation. Xen > uses this to map the hypervisor's shared info page, which doesn't have > a pseudo-physical page number, and therefore can't be mapped > ordinarily.
why not vmalloc it on the guest side? fixmaps are bad for this purpose for a general paravirt implementation, it limits the size of the shared info page, etc.
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