qemu-devel
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Qemu-devel] [PATCH v3 5/6] vga: Use linear mapping + dirty logging


From: Avi Kivity
Subject: Re: [Qemu-devel] [PATCH v3 5/6] vga: Use linear mapping + dirty logging in chain 4 memory access mode
Date: Wed, 14 Sep 2011 11:17:07 +0300
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:6.0) Gecko/20110816 Thunderbird/6.0

On 09/14/2011 10:42 AM, Alexander Graf wrote:
On 14.09.2011, at 09:11, Avi Kivity wrote:

>  On 09/13/2011 10:39 PM, Blue Swirl wrote:
>>  >
>>  >   Here is the problem: Both the vram and the ISA range get mapped into
>>  >   system address space, but the former eclipses the latter as it shows up
>>  >   earlier in the list and has the same priority. This picture changes with
>>  >   the chain-4 alias which has prio 2, thus maps over the vram.
>>  >
>>  >   It looks to me like the ISA address space is either misplaced at
>>  >   0x80000000 or is not supposed to be mapped at all on PPC. Comments?
>>
>>  Since there is no PCI-ISA bridge, ISA address space shouldn't exist.
>
>  Where does the vga device sit then?

On the PCI bus? :)


I thought it was std vga, which is an ISA device.

Anyway PCI supports the vga region at 0xa0000-0xc0000. Where is it supposed to be mapped?

--
error compiling committee.c: too many arguments to function




reply via email to

[Prev in Thread] Current Thread [Next in Thread]