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RE: [Xen-ia64-devel] Re: [Xen-devel] [PATCH] Add lost logic for VGAiniti

To: "Tian, Kevin" <kevin.tian@xxxxxxxxx>, "Keir Fraser" <Keir.Fraser@xxxxxxxxxxxx>, "Zhang, Xiantao" <xiantao.zhang@xxxxxxxxx>
Subject: RE: [Xen-ia64-devel] Re: [Xen-devel] [PATCH] Add lost logic for VGAinitialization
From: "Tian, Kevin" <kevin.tian@xxxxxxxxx>
Date: Wed, 26 Jul 2006 16:57:21 +0800
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
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Thread-topic: [Xen-ia64-devel] Re: [Xen-devel] [PATCH] Add lost logic for VGAinitialization
>From: Tian, Kevin
>Sent: 2006年7月26日 16:55
>>
>>How come the new qemu code seems to have perfectly working VGA
>>without
>>this patch?
>>
>>  -- Keir
>>
>
>It's IA64 specific. On xen/x86, vga bios is copied to 0xD0000 by guest
>firmware. However on ia64 platform, native firmware depends on some
>initialization vga state at power on and so does guest firmware. That's
>why that vga bios initialization stub is required for vti domain, to match
>platform requirement.
>
>Thanks
>Kevin

Oops, I meant 0xC0000 indeed. :-)

Thanks,
Kevin

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