From: Gerd Hoffmann <kraxel@redhat.com>
To: Avi Kivity <avi@redhat.com>
Cc: Alexander Graf <agraf@suse.de>,
Ed Swierk <eswierk@aristanetworks.com>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>
Subject: Re: Userspace MSR handling
Date: Mon, 25 May 2009 13:29:48 +0200 [thread overview]
Message-ID: <4A1A812C.60403@redhat.com> (raw)
In-Reply-To: <4A1A7F03.1020106@redhat.com>
On 05/25/09 13:20, Avi Kivity wrote:
> It should have been implemented as mmio. Maybe implement an ioctl that
> converts rdmsr/wrmsr to equivalent mmios?
>
> struct kvm_msr_mmio {
> __u32 msr;
> __u32 nr;
> __u64 mmio;
> __u32 flags;
> __u32 pad[3];
> }
Funny way to tunnel msr access through the existing interface.
Should work though I think.
> In any case it should reject the standard msr ranges to prevent Alex
> from implementing cpu emulation in userspace.
;)
cheers,
Gerd
next prev parent reply other threads:[~2009-05-25 11:29 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-22 20:11 Userspace MSR handling Ed Swierk
2009-05-23 8:57 ` Alexander Graf
2009-05-24 12:07 ` Avi Kivity
2009-05-24 16:15 ` Alexander Graf
2009-05-26 11:31 ` Avi Kivity
2009-05-25 11:03 ` Gerd Hoffmann
2009-05-25 11:20 ` Avi Kivity
2009-05-25 11:29 ` Gerd Hoffmann [this message]
2009-05-25 11:31 ` Avi Kivity
2009-05-27 16:12 ` Ed Swierk
2009-05-27 16:28 ` Avi Kivity
2009-05-27 17:09 ` Ed Swierk
2009-05-27 19:16 ` Gerd Hoffmann
2009-05-27 23:00 ` Ed Swierk
2009-05-28 8:53 ` Avi Kivity
2009-05-29 9:47 ` Gerd Hoffmann
2009-05-31 8:21 ` Avi Kivity
2009-05-25 11:16 ` Gerd Hoffmann
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=4A1A812C.60403@redhat.com \
--to=kraxel@redhat.com \
--cc=agraf@suse.de \
--cc=avi@redhat.com \
--cc=eswierk@aristanetworks.com \
--cc=kvm@vger.kernel.org \
/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.