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Re: [Qemu-devel] Re: Question about KVM and PC speaker

From: Jan Kiszka
Subject: Re: [Qemu-devel] Re: Question about KVM and PC speaker
Date: Wed, 06 May 2009 12:34:31 +0200
User-agent: Mozilla/5.0 (X11; U; Linux i686 (x86_64); de; rv: Gecko/20080226 SUSE/ Thunderbird/ Mnenhy/

Sebastian Herbszt wrote:
> Simon Bienlein wrote:
>> Is a support for BIOS worked on right now?
> The vgabios (vgabios.c) has a "FIXME should beep". Volker, do you plan
> to fix this?
> Which frequency should be used for the beep? Which delay?

I would try 1 KHz and some hundred milliseconds.

> Getting a delay using "inb(0x61) & 0x10" is still a no go on qemu, right?

Looks like (should be far too inaccurate for longer delays). What about
0x40:0x6c, the BIOS' daily timer counter?


Siemens AG, Corporate Technology, CT SE 2
Corporate Competence Center Embedded Linux

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