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Date: Mon, 14 Dec 2009 06:00:24 +1000
Message-ID: <21d7e9970912131200s73b6b691jb8c55f9fe12ca699@mail.gmail.com>
Subject: Re: [Qemu-devel] vmware vga + kvm interaction
From: Dave Airlie <airlied@gmail.com>
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To: Anthony Liguori <anthony@codemonkey.ws>
Cc: Avi Kivity <avi@redhat.com>, qemu-devel@nongnu.org

On Mon, Dec 14, 2009 at 3:59 AM, Anthony Liguori <anthony@codemonkey.ws> wr=
ote:
> Avi Kivity wrote:
>>
>> On 12/13/2009 10:55 AM, Dave Airlie wrote:
>>>
>>> If I boot an F12 LiveCD with vmware VGA without KVM enabled, I get the
>>> syslinux boot screen and can pick
>>> options, the same qemu run with -enable-kvm, I just get a blank screen.
>>>
>>> Anyone have any clues on why this might be?
>>>
>>>
>>
>> One of the niceties of vmvga is that it accesses cpu registers in respon=
se
>> to an I/O instruction. =A0Maybe this bit is broken. =A0Does your hw/vmpo=
rt.c
>> have cpu_synchronize_state() in vmport_ioport_read()?
>>
>> Hmm, upstream doesn't, so no surprise it is broken.
>
> vmware-vga does not use vmport.
>
> The issue is about related to dirty tracking and how the vbe bios memory
> gets mapped. =A0I've posted patches on the list before.
>

I actually reinvented at least one of the patches locally and it
didn't seem to help,
but I'll try and take a closer look today,

Dave.