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[Qemu-devel] IO port 0x61 is multiple used

From: Weidong Huang
Subject: [Qemu-devel] IO port 0x61 is multiple used
Date: Sun, 15 Mar 2015 20:49:38 +0800
User-agent: Mozilla/5.0 (Windows NT 6.1; rv:11.0) Gecko/20120327 Thunderbird/11.0.1 
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?
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