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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: Tue, 13 Sep 2011 10:51:05 +0300
User-agent: Mozilla/5.0 (X11; Linux i686 on x86_64; rv:6.0.2) Gecko/20110906 Thunderbird/6.0.2

On 09/13/2011 09:54 AM, Alexander Graf wrote:
>  I had similar problems with sun4u, fixed with
>  f69539b14bdba7a5cd22e1f4bed439b476b17286. I think also here, PCI
>  should be given a memory range at 0x80000000 and VGA should
>  automatically use that like.

Yeah, usually the ISA bus is behind an ISA-PCI bridge, so it should inherit the 
offset from its parent. Or do you mean something different?

He means that isa_mem_base should go away; instead isa_address_space() should be a subregion at offset 0x80000000.

Which vga variant are you using?

I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.

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