Re: [Qemu-devel] [PATCH v1 0/6] PMA phase 2 - per CPU address spaces

[Peter Maydell]

On 26 August 2014 at 01:56, Peter Crosthwaite
<address@hidden> wrote:
> This series sets up CPUs with configurable address spaces. This follows
> on from Edgars original work and moves towards removal of
> address_space_memory and support for arbitrary memory
> heirachies/layouts.
>
> Fuller context in RFC:
>
> http://lists.gnu.org/archive/html/qemu-devel/2014-06/msg00483.html
>
> Follow up series' will add the rest of that functionality.
>
> Regards,
> Peter
>
> Changed since RFC:
> Limit scope to only CPU and Address Space plumbing
> Got compiling and tested in fully configured build.
>
>
> Peter Crosthwaite (6):
>   memory: address_space_init: do nothing if no root region given
>   memory: AddressSpace: Implement ref counting
>   memory: Add address_space_init_shareable()
>   qom: Move cpu.o to obj-y.
>   qom/cpu: Add Memory Region Property
>   cpu: Delay address space init until realize

Just to let you know, I'm taking some of these patches into
a series I'm working on for multiple address-space support
(for ARM trustzone). Basically I'm taking patches 2 and 3,
plus a variant of patch 5 that avoids the need to make cpu.o
an obj-y object. Then I have some more patches of my own which
add an extra QOM property for ARM CPUs for the secure-memory
address space.

Alpha-quality work-in-progress patches currently at
https://git.linaro.org/people/peter.maydell/qemu-arm.git multi-ases
web view:
https://git.linaro.org/people/peter.maydell/qemu-arm.git/shortlog/refs/heads/multi-ases

I'm not completely certain about the AS reference-counting
code right now; will have to come back and think harder
about it later.

thanks
-- PMM