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Re: [Qemu-devel] [PATCH 1/2] pc: add pci64 memory hole

From: Gerd Hoffmann
Subject: Re: [Qemu-devel] [PATCH 1/2] pc: add pci64 memory hole
Date: Wed, 02 May 2012 17:46:48 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:10.0.4) Gecko/20120422 Thunderbird/10.0.4

On 05/02/12 17:31, Avi Kivity wrote:
> On 05/02/2012 05:02 PM, Gerd Hoffmann wrote:
>> This patch adds a address space hole for 64bit PCI ressources.
>> It starts at 0x8000000000 (512 GB) and ends at 0x10000000000 (1 TB),
>> thus has 512 GB in size.  This matches what the seabios is doing
>> (latest master branch).
> We should communicate this to seabios via fwcfg

A dsdt entry is needed for the pci64 window (see
which makes it non-trivial to turn this into a runtime option ...

> It should also only apply to -M old.

Is this the only reason you want this be runtime-switchable?


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