From: Tomasz Chmielewski <mangoo@wpkg.org>
To: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Anthony Liguori <aliguori@us.ibm.com>, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [SOLUTION] "i8042.c: No controller found" -> OS sees no keyboard if I type "in BIOS"
Date: Mon, 08 Jun 2009 17:11:18 +0200 [thread overview]
Message-ID: <4A2D2A16.3030400@wpkg.org> (raw)
In-Reply-To: <20090608143021.GA6107@amt.cnet>
Marcelo Tosatti wrote:
>>> PS2_QUEUE_SIZE 256 was introduced in qemu-0.8.0.
>> BTW, with "PS2_QUEUE_SIZE 16" I'm still able to trigger:
>>
>> i8042.c: No controller found.
>
> I was not able to trigger it by changing PS2_QUEUE_SIZE to 16 (which
> shows the testing was lame, since you did trigger it).
For me, moving mouse adds to the buffer really fast.
>> Only with "PS2_QUEUE_SIZE 15" keyboard is detected every time I boot the
>> guest (unless that's what you meant by setting it to 16).
>
> No, 16. Maybe there's some off-by-one bug in hw/ps2.c? Also yesterday i
> was not entirely sure the KBD_STAT_OBF (output buffer empty/full status
> bit) handling was correct (thus the attached patch), but now a quick
> look seems to indicate it is alright, since it be will update these bits
> via:
(...)
> -#define PS2_QUEUE_SIZE 256
> +#define PS2_QUEUE_SIZE 16
15? With 16 it can still break (broken BIOS?).
--
Tomasz Chmielewski
http://wpkg.org
next prev parent reply other threads:[~2009-06-08 15:10 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-14 13:57 [Qemu-devel] "i8042.c: No controller found" -> OS sees no keyboard if I type "in BIOS" Tomasz Chmielewski
2009-05-20 9:30 ` Tomasz Chmielewski
2009-05-20 13:30 ` [Qemu-devel] [SOLUTION] " Tomasz Chmielewski
2009-06-07 4:04 ` Marcelo Tosatti
2009-06-08 13:51 ` Tomasz Chmielewski
2009-06-08 14:13 ` Tomasz Chmielewski
2009-06-08 14:30 ` Marcelo Tosatti
2009-06-08 15:11 ` Tomasz Chmielewski [this message]
2009-06-08 15:48 ` Mark Cave-Ayland
2009-06-23 12:27 ` Mark Cave-Ayland
2009-06-08 14:59 ` Avi Kivity
2009-06-08 15:08 ` Tomasz Chmielewski
2009-06-08 15:28 ` Paul Brook
2009-07-08 21:08 ` [Qemu-devel] " Dinesh Subhraveti
2009-07-09 1:07 ` Dinesh Subhraveti
2009-07-09 20:52 ` [Qemu-devel] Re: [SOLUTION] "i8042.c: No controller found" ->OS " Dinesh Subhraveti
2009-07-10 8:21 ` Mark Cave-Ayland
2009-07-10 21:45 ` Dinesh Subhraveti
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