From: Avi Kivity <avi@redhat.com>
To: Blue Swirl <blauwirbel@gmail.com>
Cc: "Jan Kiszka" <jan.kiszka@siemens.com>,
qemu-devel@nongnu.org, "Zeus Gómez Marmolejo" <zeus@aluzina.org>
Subject: Re: [Qemu-devel] Physical address debugging
Date: Wed, 31 Aug 2011 08:20:38 +0300 [thread overview]
Message-ID: <4E5DC4A6.9040302@redhat.com> (raw)
In-Reply-To: <CAAu8pHsVYLKtCYf6KpWetsYf-FvxO0hMhmYQpOU6Kc4sCMjJtg@mail.gmail.com>
On 08/30/2011 09:31 PM, Blue Swirl wrote:
> >>
> >> Since KVM can handle MMIO, I think it should also be able to handle
> >> watchpoints.
> >>
> >
> > Not on RAM areas.
>
> But isn't it possible to unmap one page of RAM and replace that by
> MMIO page on KVM, is this because of the memory slots?
It is possible. Currently kvm won't execute code from mmio, but that's
easy to fix. Of course, the kvm instruction emulator isn't 100%
complete (or even close, when considering vector extensions).
> Does your
> memory work help?
It does, you an add an overlay page and then remove it when done.
--
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.
prev parent reply other threads:[~2011-08-31 5:20 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-26 14:21 [Qemu-devel] Physical address debugging Zeus Gómez Marmolejo
2011-08-26 14:41 ` Jan Kiszka
2011-08-26 17:34 ` Blue Swirl
2011-08-26 17:55 ` Jan Kiszka
2011-08-26 18:02 ` Blue Swirl
2011-08-26 18:12 ` Jan Kiszka
2011-08-28 21:42 ` Zeus Gómez Marmolejo
2011-08-29 12:45 ` Lluís
2011-08-29 12:49 ` Avi Kivity
2011-08-30 18:31 ` Blue Swirl
2011-08-31 5:20 ` Avi Kivity [this message]
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