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: Mon, 29 Aug 2011 15:49:32 +0300 [thread overview]
Message-ID: <4E5B8ADC.5010402@redhat.com> (raw)
In-Reply-To: <CAAu8pHvhv_zX-LGGdPbLCQocwifSPKpZn6kkGWfJrO9i09Lm9A@mail.gmail.com>
On 08/26/2011 08:34 PM, Blue Swirl wrote:
> > Indeed, it isn't. It's impossible with KVM (due to lacking hardware
> > support) but would be feasible with TCG if you extend (or ad-hoc hack)
> > QEMU code accordingly.
>
> Why impossible? The existing watchpoints replace original physical
> memory with io_mem_watch MMIO, virtual addresses are translated to
> physical in exec.c:tlb_set_page(). The only missing piece is to allow
> setting watchpoints with physical addresses directly.
>
> Since KVM can handle MMIO, I think it should also be able to handle
> watchpoints.
>
Not on RAM areas.
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2011-08-29 12:49 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 [this message]
2011-08-30 18:31 ` Blue Swirl
2011-08-31 5:20 ` Avi Kivity
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