From mboxrd@z Thu Jan  1 00:00:00 1970
From: Hajime Tazaki <thehajime@gmail.com>
Subject: Re: [RFC v2 05/37] lkl: memory handling
Date: Wed, 05 Feb 2020 16:38:22 +0900
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On Tue, 26 Nov 2019 07:10:28 +0900,
Richard Weinberger wrote:
> 
> On Fri, Nov 8, 2019 at 6:03 AM Hajime Tazaki <thehajime@gmail.com> wrote:
> >
> > From: Octavian Purdila <tavi.purdila@gmail.com>
> >
> > LKL is a non MMU architecture and hence there is not much work left to
> > do other than initializing the boot allocator and providing the page
> > and page table definitions.
> >
> > The backstore memory is allocated via a host operation and the memory
> > size to be used is specified when the kernel is started, in the
> > lkl_start_kernel call.
> >
> > Signed-off-by: H.K. Jerry Chu <hkchu@google.com>
> > Signed-off-by: Hajime Tazaki <thehajime@gmail.com>
> > Signed-off-by: Levente Kurusa <levex@linux.com>
> > Signed-off-by: Yuan Liu <liuyuan@google.com>
> > Signed-off-by: Octavian Purdila <tavi.purdila@gmail.com>
> > ---
> >  arch/um/lkl/include/asm/page.h          | 14 ++++++
> >  arch/um/lkl/include/asm/pgtable.h       | 62 +++++++++++++++++++++++
> >  arch/um/lkl/include/uapi/asm/host_ops.h |  5 ++
> >  arch/um/lkl/mm/bootmem.c                | 66 +++++++++++++++++++++++++
> 
> This is also something which needs unification with UML.
> UML in NOMMU mode would be LKL then...

At this moment, I leave those part as is; changing LKL to MMU mode
makes less possibility to host various underlying environments
(non-Linux hosts, non-x86 subarchs).

If you have nice suggestions (such as adding texts to docs), it would
be definitely helpful.

-- Hajime