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Re: CVS commit: src/sys/arch



> Module Name:  src
> Committed By: bouyer
> Date:         Wed Jan 23 19:46:46 UTC 2008
> 
> Modified Files:
>       src/sys/arch/amd64/include: pmap.h
>       src/sys/arch/i386/i386: bios32.c locore.S machdep.c
>       src/sys/arch/i386/include: pmap.h pte.h types.h vmparam.h
>       src/sys/arch/x86/include: pmap.h
>       src/sys/arch/x86/x86: pmap.c
>       src/sys/arch/xen/conf: files.compat
>       src/sys/arch/xen/include: bus_private.h xenpmap.h
>       src/sys/arch/xen/include/i386: hypercalls.h
>       src/sys/arch/xen/include/xen3-public/arch-x86: xen-x86_32.h
>       src/sys/arch/xen/x86: x86_xpmap.c
>       src/sys/arch/xen/xen: if_xennet_xenbus.c
> Added Files:
>       src/sys/arch/i386/conf: INSTALL_XEN3PAE_DOMU XEN3PAE_DOMU
> 
> Log Message:
> Merge the bouyer-xeni386 branch. This brings in PAE support to NetBSD xeni386
> (domU only). PAE support is enabled by 'options PAE', see the new XEN3PAE_DOMU
> and INSTALL_XEN3PAE_DOMU kernel config files.
> 
> See the comments in arch/i386/include/{pte.h,pmap.h} to see how it works.
> In short, we still handle it as a 2-level MMU, with the second level page
> directory being 4 pages in size. pmap switching is done by switching the
> L2 pages in the L3 entries, instead of loading %cr3. This is almost required
> by Xen, which handle the last L2 page (the one mapping 0xc0000000 - 
> 0xffffffff)
> in a very special way. But this approach should also work for native PAE
> support if ever supported (in fact, the pmap should almost suport native
> PAE, what's missing is bootstrap code in locore.S).

why s/pool_cache_put/pool_cache_destruct_object/ for pmap_pdp_cache?

YAMAMOTO Takashi



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