From: Gonglei <arei.gonglei@huawei.com>
To: Weidong Huang <hwd@huawei.com>,
"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>
Cc: peter.huangpeng@huawei.com, "kraxel@redhat.com" <kraxel@redhat.com>
Subject: Re: [Qemu-devel] IO port 0x61 is multiple used
Date: Tue, 17 Mar 2015 15:11:30 +0800 [thread overview]
Message-ID: <5507D3A2.4020502@huawei.com> (raw)
In-Reply-To: <55057FE2.6090604@huawei.com>
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?
Thanks,
-Gonglei
next prev parent reply other threads:[~2015-03-17 7:11 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 [this message]
2015-03-19 11:41 ` Gerd Hoffmann
2015-03-19 12:06 ` Jan Kiszka
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