On 02/13/2007 02:17 PM, Jeremy Fitzhardinge 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 doesn't Xen allocate the shared_info page from the pseudo-physical space? Doesn't it already have to steal pages from the pseudo-physical space for e.g. initial page tables, console, etc? Why not do the same for shared_info, and then you don't need a reserve the fixmap slot.
Dan - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
