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From: Paolo Bonzini <pbonzini@redhat.com>
To: Peter Maydell <peter.maydell@linaro.org>
Cc: "Michael S. Tsirkin" <mst@redhat.com>,
	aik@ozlabs.ru, jan.kiszka@siemens.com, qemu-devel@nongnu.org,
	qemulist@gmail.com, Avi Kivity <avi.kivity@gmail.com>,
	stefanha@redhat.com, david@gibson.dropbear.id.au
Subject: Re: [Qemu-devel] [PATCH 00/40] Memory-related changes sneak peek for 1.6
Date: Tue, 07 May 2013 22:21:40 +0200	[thread overview]
Message-ID: <51896254.70901@redhat.com> (raw)
In-Reply-To: <CAFEAcA_nhkbUiF_q4jAsgiQGbBQ7_Qc-O1co-VKmBJdyoEG-kQ@mail.gmail.com>

Il 07/05/2013 20:51, Peter Maydell ha scritto:
> On 7 May 2013 15:16, Paolo Bonzini <pbonzini@redhat.com> wrote:
>> Patches 1-10 are small changes, some of them bugfixes for the IOMMU
>> portion of the patches.
>>
>> Patches 11-13 introduce three new address_space APIs and clean up
>> the dispatch logic a bit by removing memory_region_section_addr.
>>
>> Patches 14-22 introduce IOMMU memory regions, convert sPAPR to the
>> new API, and finally eliminate DMAContext in favor of AddressSpace.
>>
>> Patches 24-37 set an owner on all regions owned by hot-unpluggable
>> devices (and several others when that was easy), and add ref/unref
>> calls that keep the regions alive even if the owner is hot-unplugged.
>>
>> Patches 38-40 make memory_region_find safe for usage outside the BQL.
> 
> I assume you're not going to try to get these all committed
> in one lump, by the way?

In as big a lump as possible, but not necessarily in one lump.

> I stopped reviewing after patch 22,
> since the BQL related stuff seems to still be under
> discussion.

Note that patch 37 is a fix for an existing bug (disk I/O to a
device-owned RAM area can corrupt QEMU if you unplug the device in
parallel), and it needs all the 13 previous patches unfortunately.

Only the last 3 are strictly for out-of-BQL operation.

Paolo

  reply	other threads:[~2013-05-07 20:22 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-05-07 14:16 [Qemu-devel] [PATCH 00/40] Memory-related changes sneak peek for 1.6 Paolo Bonzini
2013-05-07 14:46 ` Peter Maydell
2013-05-07 14:54   ` Paolo Bonzini
2013-05-07 18:51 ` Peter Maydell
2013-05-07 20:21   ` Paolo Bonzini [this message]
  -- strict thread matches above, loose matches on Subject: below --
2013-05-07 14:16 Paolo Bonzini

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