From: Gerd Hoffmann <kraxel@redhat.com>
To: Gonglei <arei.gonglei@huawei.com>
Cc: Weidong Huang <hwd@huawei.com>,
"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
peter.huangpeng@huawei.com
Subject: Re: [Qemu-devel] IO port 0x61 is multiple used
Date: Thu, 19 Mar 2015 12:41:45 +0100 [thread overview]
Message-ID: <1426765305.18873.44.camel@nilsson.home.kraxel.org> (raw)
In-Reply-To: <5507D3A2.4020502@huawei.com>
On Di, 2015-03-17 at 15:11 +0800, Gonglei wrote:
> On 2015/3/15 20:49, Weidong Huang wrote:
> > Hi ALL:
> >
> > IO port 0x61 is used by pc speaker and NMI reason port.
> >
> > This is ambiguous. How to distinguish in QEMU?
> >
> > I see that NMI reason port is not realized in QEMU.
> >
> > But linux guest will access this port to determine what the NMI reason code means.
> >
> > It will access pc speaker's io port. Is this a bug?
> >
> Gerd, any thoughts?
Not my area of expertise, but can qemu send NMIs to the guest in the
first place?
cheers,
Gerd
next prev parent reply other threads:[~2015-03-19 11:41 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-15 12:49 [Qemu-devel] IO port 0x61 is multiple used Weidong Huang
2015-03-17 7:11 ` Gonglei
2015-03-19 11:41 ` Gerd Hoffmann [this message]
2015-03-19 12:06 ` Jan Kiszka
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