From: Kevin O'Connor <kevin@koconnor.net>
To: Roy Tam <roytam@gmail.com>
Cc: Gerhard Wiesinger <lists@wiesinger.com>,
seabios@seabios.org, qemu-devel@nongnu.org
Subject: Re: [SeaBIOS] [Qemu-devel] QEMU regression problems
Date: Tue, 13 Apr 2010 21:16:47 -0400 [thread overview]
Message-ID: <20100414011646.GA28219@morn.localdomain> (raw)
In-Reply-To: <u2m473191351004122326s65e2098dra6f3c47596aa89cd@mail.gmail.com>
On Tue, Apr 13, 2010 at 02:26:10PM +0800, Roy Tam wrote:
> 2010/4/12 Gerhard Wiesinger <lists@wiesinger.com>:
> > 3.) There is also a problem with the reported base memory under QEMM386
> > (HIMEM.SYS and EMM386.EXE is correct here). It is 646kB instead of 640kB.
> > Therefore base memory test fails. I guess that reporting memory CMOS
> > tables/interrupt functions are not implemented correctly.
>
> - The Base Memory > 640K error seems to be SeaBIOS related. QEMU Bochs
> BIOS(tested with both -old-bios hack in 0.12 series and old 0.11.1)
> will just freeze after QEMU counted RAM.(Tested with ScriptPC and
> Bochs).
The SeaBIOS log would really help. This can be done by adding:
-chardev stdio,id=seabios -device isa-debugcon,iobase=0x402,chardev=seabios
to the qemu command line.
The memory can be obtained in several places (int 12, int 1588, int
15e801, int 15e820, and mem 40:13). All look fine to me from looking
at the code.
-Kevin
next prev parent reply other threads:[~2010-04-14 1:16 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-12 5:31 [Qemu-devel] QEMU regression problems Gerhard Wiesinger
2010-04-13 6:26 ` Roy Tam
2010-04-14 1:16 ` Kevin O'Connor [this message]
2010-04-19 6:19 ` [SeaBIOS] " Gerhard Wiesinger
2010-04-20 1:26 ` Kevin O'Connor
2010-04-21 19:16 ` Gerhard Wiesinger
2010-04-21 23:02 ` Kevin O'Connor
2010-04-22 6:16 ` Gerhard Wiesinger
2011-02-18 7:12 ` [Qemu-devel] Re: QEMU regression problems - Update FPU Gerhard Wiesinger
2011-02-23 7:09 ` Gerhard Wiesinger
2011-02-23 8:16 ` Peter Maydell
2011-02-23 9:45 ` Laurent Desnogues
2011-02-23 19:04 ` Aurelien Jarno
2011-02-24 11:10 ` Paolo Bonzini
2011-02-24 11:21 ` Laurent Desnogues
2011-02-24 7:03 ` Gerhard Wiesinger
2011-02-24 7:31 ` Aurelien Jarno
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