From: Jan Kiszka <jan.kiszka@siemens.com>
To: mtosatti@redhat.com, aliguori@us.ibm.com, qemu-devel@nongnu.org,
Avi Kivity <avi@redhat.com>
Subject: Re: [Qemu-devel] [PATCH, RESEND] kvm: Fix dirty tracking with large kernel page size
Date: Wed, 04 Apr 2012 12:58:37 +0200 [thread overview]
Message-ID: <4F7C295D.8090202@siemens.com> (raw)
In-Reply-To: <20120404011238.GC17423@truffala.fritz.box>
On 2012-04-04 03:12, David Gibson wrote:
>> Also, what's about coalesced MMIO? I see that the ring definition
>> depends on [TARGET_]PAGE_SIZE. What page size does the power kernel use
>> for it, and does it make a relevant difference for space?
>
> Hr, so the HV variant of Power KVM doesn't do coalesced mmio. The PR
> variant does, but I don't know enough about it to easily answer that.
> If there's a bug there, it hasn't bitten yet, so how about we fix that
> another day.
Not really a smart approach, specifically now that we are aware of a
potential problem here.
Jan
--
Siemens AG, Corporate Technology, CT T DE IT 1
Corporate Competence Center Embedded Linux
next prev parent reply other threads:[~2012-04-04 10:58 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-02 4:04 [Qemu-devel] [PATCH, RESEND] kvm: Fix dirty tracking with large kernel page size David Gibson
2012-04-02 4:14 ` Benjamin Herrenschmidt
2012-04-03 7:08 ` Jan Kiszka
2012-04-04 1:12 ` David Gibson
2012-04-04 10:58 ` Jan Kiszka [this message]
2012-04-04 14:24 ` David Gibson
2012-04-05 7:32 ` Jan Kiszka
-- strict thread matches above, loose matches on Subject: below --
2012-04-04 1:15 David Gibson
2012-04-04 8:41 ` Avi Kivity
2012-05-09 22:23 ` Anthony Liguori
2012-05-10 9:27 ` Avi Kivity
2012-05-10 10:49 ` Jan Kiszka
2012-05-10 10:55 ` Avi Kivity
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