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From: Paolo Bonzini <pbonzini@redhat.com>
To: "Peter Maydell" <peter.maydell@linaro.org>,
	"Andreas Färber" <afaerber@suse.de>
Cc: QEMU Developers <qemu-devel@nongnu.org>,
	Blue Swirl <blauwirbel@gmail.com>,
	Anthony Liguori <aliguori@amazon.com>,
	pcrost@xilinx.com, "Edgar E. Iglesias" <edgar.iglesias@gmail.com>,
	Aurelien Jarno <aurelien@aurel32.net>,
	Richard Henderson <rth@twiddle.net>
Subject: Re: [Qemu-devel] [PATCH v4 00/22] Steps towards per CPU address-spaces
Date: Sun, 09 Feb 2014 23:15:46 +0100	[thread overview]
Message-ID: <52F7FE12.5070507@redhat.com> (raw)
In-Reply-To: <CAFEAcA-DabfgN_n8jH4VqAvFzzx==iJp1HbRn1T8JOUej1-a+g@mail.gmail.com>

Il 09/02/2014 15:21, Peter Maydell ha scritto:
> Consider a board model which puts together some RAM and
> devices. It ought to have the same interface for passing this
> up to the CPU whether it's doing so directly or via some SoC
> container device. For the SoC container case, this has to be
> by passing a MemoryRegion, since the SoC will want to add
> some devices of its own to that region. So the interface for
> passing things to the CPU should also be a MemoryRegion
> (which the CPU then turns into an AddressSpace for its own
> internal use.)

I haven't look closely at those final patches either, but I think I 
agree with Peter.

It's certainly okay if Andreas picks up these patches, since there's no 
formal MAINTAINER for the memory API.

However, I'd prefer to first apply the patch to fix exec.c in order to 
keep bisection as clean as possible.

Thanks!

Paolo

  reply	other threads:[~2014-02-09 22:16 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-02-03  9:44 [Qemu-devel] [PATCH v4 00/22] Steps towards per CPU address-spaces Edgar E. Iglesias
2014-02-03  9:44 ` [Qemu-devel] [PATCH v4 01/22] exec: Make tb_invalidate_phys_addr input an AS Edgar E. Iglesias
2014-02-03  9:44 ` [Qemu-devel] [PATCH v4 02/22] exec: Make iotlb_to_region " Edgar E. Iglesias
2014-02-03  9:44 ` [Qemu-devel] [PATCH v4 03/22] exec: Always initialize MemorySection address spaces Edgar E. Iglesias
2014-02-03  9:44 ` [Qemu-devel] [PATCH v4 04/22] exec: Make memory_region_section_get_iotlb use section AS Edgar E. Iglesias
2014-02-03  9:44 ` [Qemu-devel] [PATCH v4 05/22] memory: Add MemoryListener to typedefs.h Edgar E. Iglesias
2014-02-03  9:44 ` [Qemu-devel] [PATCH v4 06/22] cpu: Add per-cpu address space Edgar E. Iglesias
2014-02-11 19:52   ` Andreas Färber
2014-02-14  5:36     ` Edgar E. Iglesias
2014-02-03  9:44 ` [Qemu-devel] [PATCH v4 07/22] exec: On AS changes, only flush affected CPU TLBs Edgar E. Iglesias
2014-02-03  9:44 ` [Qemu-devel] [PATCH v4 08/22] exec: Make ldl_*_phys input an AddressSpace Edgar E. Iglesias
2014-02-03  9:44 ` [Qemu-devel] [PATCH v4 09/22] exec: Make ldq/ldub_*_phys " Edgar E. Iglesias
2014-02-03  9:44 ` [Qemu-devel] [PATCH v4 10/22] exec: Make lduw_*_phys " Edgar E. Iglesias
2014-02-03  9:44 ` [Qemu-devel] [PATCH v4 11/22] exec: Make stq_*_phys " Edgar E. Iglesias
2014-02-03  9:44 ` [Qemu-devel] [PATCH v4 12/22] exec: Make stl_*_phys " Edgar E. Iglesias
2014-02-03  9:44 ` [Qemu-devel] [PATCH v4 13/22] exec: Make stl_phys_notdirty " Edgar E. Iglesias
2014-02-03  9:44 ` [Qemu-devel] [PATCH v4 14/22] exec: Make stw_*_phys " Edgar E. Iglesias
2014-02-03  9:44 ` [Qemu-devel] [PATCH v4 15/22] exec: Make stb_phys " Edgar E. Iglesias
2014-02-03  9:44 ` [Qemu-devel] [PATCH v4 16/22] exec: Make cpu_physical_memory_write_rom input an AS Edgar E. Iglesias
2014-02-03  9:44 ` [Qemu-devel] [PATCH v4 17/22] exec: Make cpu_memory_rw_debug use the CPUs AS Edgar E. Iglesias
2014-02-03  9:44 ` [Qemu-devel] [PATCH v4 18/22] memory: Add address_space_find_by_name() Edgar E. Iglesias
2014-02-03  9:44 ` [Qemu-devel] [PATCH v4 19/22] qdev: Add qdev property type for AddressSpaces Edgar E. Iglesias
2014-02-03  9:44 ` [Qemu-devel] [PATCH v4 20/22] cpu: Add address-space property Edgar E. Iglesias
2014-02-03  9:44 ` [Qemu-devel] [PATCH v4 21/22] petalogix-ml605: Create the CPU with object_new() Edgar E. Iglesias
2014-02-03  9:44 ` [Qemu-devel] [PATCH v4 22/22] petalogix-ml605: Make the LMB visible only to the CPU Edgar E. Iglesias
2014-02-05 18:44 ` [Qemu-devel] [PATCH v4 00/22] Steps towards per CPU address-spaces Peter Maydell
2014-02-06  1:40   ` Edgar E. Iglesias
2014-02-09 13:31 ` Andreas Färber
2014-02-09 14:21   ` Peter Maydell
2014-02-09 22:15     ` Paolo Bonzini [this message]
2014-02-10  9:23       ` Peter Maydell
2014-02-10 17:04         ` Paolo Bonzini
2014-02-10 23:10     ` Edgar E. Iglesias
2014-02-10 23:42       ` Peter Maydell
2014-02-10 23:53         ` Edgar E. Iglesias
2014-02-11 21:40           ` Paolo Bonzini

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