From: Paul Brook <paul@codesourcery.com>
To: qemu-devel@nongnu.org
Cc: Richard Henderson <rth@twiddle.net>,
Blue Swirl <blauwirbel@gmail.com>,
ohmura.kei@lab.ntt.co.jp, kvm@vger.kernel.org,
Yoshiaki Tamura <tamura.yoshiaki@lab.ntt.co.jp>,
Avi Kivity <avi@redhat.com>
Subject: Re: [Qemu-devel] Re: [PATCH 2/6] qemu-kvm: Modify and introduce wrapper functions to access phys_ram_dirty.
Date: Wed, 17 Mar 2010 00:05:03 +0000 [thread overview]
Message-ID: <201003170005.03822.paul@codesourcery.com> (raw)
In-Reply-To: <4BA006DB.3070205@twiddle.net>
> Where does the translator need access to this original code? I was
> just thinking about this problem today, wondering how much overhead
> there is with this SMC page protection thing.
When an MMU fault occurs qemu re-translates the TB with additional annotations
to determine which guest instruction caused the fault.
See translate-all.c:cpu_restore_state().
Paul
WARNING: multiple messages have this Message-ID (diff)
From: Paul Brook <paul@codesourcery.com>
To: qemu-devel@nongnu.org
Cc: ohmura.kei@lab.ntt.co.jp, kvm@vger.kernel.org,
Yoshiaki Tamura <tamura.yoshiaki@lab.ntt.co.jp>,
Blue Swirl <blauwirbel@gmail.com>, Avi Kivity <avi@redhat.com>,
Richard Henderson <rth@twiddle.net>
Subject: Re: [Qemu-devel] Re: [PATCH 2/6] qemu-kvm: Modify and introduce wrapper functions to access phys_ram_dirty.
Date: Wed, 17 Mar 2010 00:05:03 +0000 [thread overview]
Message-ID: <201003170005.03822.paul@codesourcery.com> (raw)
In-Reply-To: <4BA006DB.3070205@twiddle.net>
> Where does the translator need access to this original code? I was
> just thinking about this problem today, wondering how much overhead
> there is with this SMC page protection thing.
When an MMU fault occurs qemu re-translates the TB with additional annotations
to determine which guest instruction caused the fault.
See translate-all.c:cpu_restore_state().
Paul
next prev parent reply other threads:[~2010-03-17 0:05 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-16 10:53 [PATCH 0/6] qemu-kvm: Introduce bit-based phys_ram_dirty, and bit-based dirty page checker Yoshiaki Tamura
2010-03-16 10:53 ` [Qemu-devel] " Yoshiaki Tamura
2010-03-16 10:53 ` [PATCH 1/6] qemu-kvm: Introduce bit-based phys_ram_dirty for VGA, CODE and MIGRATION Yoshiaki Tamura
2010-03-16 10:53 ` [Qemu-devel] " Yoshiaki Tamura
2010-03-16 12:26 ` Avi Kivity
2010-03-16 12:26 ` [Qemu-devel] " Avi Kivity
2010-03-16 13:01 ` Yoshiaki Tamura
2010-03-16 13:01 ` [Qemu-devel] " Yoshiaki Tamura
2010-03-16 13:04 ` Avi Kivity
2010-03-16 13:04 ` [Qemu-devel] " Avi Kivity
2010-03-16 10:53 ` [PATCH 2/6] qemu-kvm: Modify and introduce wrapper functions to access phys_ram_dirty Yoshiaki Tamura
2010-03-16 10:53 ` [Qemu-devel] " Yoshiaki Tamura
2010-03-16 12:45 ` Avi Kivity
2010-03-16 12:45 ` [Qemu-devel] " Avi Kivity
2010-03-16 13:17 ` Yoshiaki Tamura
2010-03-16 13:17 ` [Qemu-devel] " Yoshiaki Tamura
2010-03-16 13:29 ` Avi Kivity
2010-03-16 13:29 ` [Qemu-devel] " Avi Kivity
2010-03-16 13:49 ` Yoshiaki Tamura
2010-03-16 13:49 ` [Qemu-devel] " Yoshiaki Tamura
2010-03-16 13:51 ` Anthony Liguori
2010-03-16 13:51 ` [Qemu-devel] " Anthony Liguori
2010-03-16 13:57 ` Avi Kivity
2010-03-16 13:57 ` [Qemu-devel] " Avi Kivity
2010-03-16 14:50 ` Anthony Liguori
2010-03-16 14:50 ` [Qemu-devel] " Anthony Liguori
2010-03-16 20:10 ` Blue Swirl
2010-03-16 20:10 ` Blue Swirl
2010-03-16 22:31 ` Richard Henderson
2010-03-16 22:31 ` [Qemu-devel] " Richard Henderson
2010-03-17 0:05 ` Paul Brook [this message]
2010-03-17 0:05 ` Paul Brook
2010-03-17 4:07 ` Avi Kivity
2010-03-17 4:07 ` Avi Kivity
2010-03-17 16:06 ` Paul Brook
2010-03-17 16:06 ` Paul Brook
2010-03-17 16:28 ` Avi Kivity
2010-03-17 16:28 ` Avi Kivity
2010-03-16 13:35 ` Anthony Liguori
2010-03-16 13:35 ` [Qemu-devel] " Anthony Liguori
2010-03-16 22:50 ` Yoshiaki Tamura
2010-03-16 22:50 ` [Qemu-devel] " Yoshiaki Tamura
2010-03-16 10:53 ` [PATCH 3/6] qemu-kvm: Replace direct phys_ram_dirty access with wrapper functions Yoshiaki Tamura
2010-03-16 10:53 ` [Qemu-devel] " Yoshiaki Tamura
2010-03-16 10:53 ` [PATCH 4/6] qemu-kvm: Introduce cpu_physical_memory_get_dirty_range() Yoshiaki Tamura
2010-03-16 10:53 ` [Qemu-devel] " Yoshiaki Tamura
2010-03-16 12:47 ` Avi Kivity
2010-03-16 12:47 ` [Qemu-devel] " Avi Kivity
2010-03-16 10:53 ` [PATCH 5/6] qemu-kvm: Use cpu_physical_memory_set_dirty_range() to update phys_ram_dirty Yoshiaki Tamura
2010-03-16 10:53 ` [Qemu-devel] " Yoshiaki Tamura
2010-03-16 10:53 ` [PATCH 6/6] qemu-kvm: Use cpu_physical_memory_get_dirty_range() to check multiple dirty pages Yoshiaki Tamura
2010-03-16 10:53 ` [Qemu-devel] " Yoshiaki Tamura
2010-03-16 13:11 ` [PATCH 0/6] qemu-kvm: Introduce bit-based phys_ram_dirty, and bit-based dirty page checker Avi Kivity
2010-03-16 13:11 ` [Qemu-devel] " Avi Kivity
2010-03-16 13:41 ` Yoshiaki Tamura
2010-03-16 13:41 ` [Qemu-devel] " Yoshiaki Tamura
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=201003170005.03822.paul@codesourcery.com \
--to=paul@codesourcery.com \
--cc=avi@redhat.com \
--cc=blauwirbel@gmail.com \
--cc=kvm@vger.kernel.org \
--cc=ohmura.kei@lab.ntt.co.jp \
--cc=qemu-devel@nongnu.org \
--cc=rth@twiddle.net \
--cc=tamura.yoshiaki@lab.ntt.co.jp \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.