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Re: [Qemu-devel] [PATCH] pc: limit 64 bit hole to 2G by default
From: |
Gerd Hoffmann |
Subject: |
Re: [Qemu-devel] [PATCH] pc: limit 64 bit hole to 2G by default |
Date: |
Wed, 24 Jul 2013 15:00:50 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130621 Thunderbird/17.0.7 |
On 07/24/13 11:51, Michael S. Tsirkin wrote:
> On Wed, Jul 24, 2013 at 09:01:51AM +0200, Gerd Hoffmann wrote:
>> On 07/24/13 08:01, Michael S. Tsirkin wrote:
>>> It turns out that some 32 bit windows guests crash
>>> if 64 bit PCI hole size is >2G.
>>
>> Ah, *that* is the reason for winxp crashing with a 64bit hole.
>>
>> Current seabios uses a slightly different approach: the 64bit hole is
>> present only in case it is actually used to map bars there, and seabios
>> tries to fit everything into the 32bit hole first.
>
> Yes. But this doesn't work with device hotplug.
Sure. This wasn't meant as request to match current seabios behavior.
Just wanted provide some additional background info.
> I intend to send a patch to properties that allows writing
> "size=1G" instead.
> Will this address your comment?
Sounds good.
cheers,
Gerd
- [Qemu-devel] [PATCH] pc: limit 64 bit hole to 2G by default, Michael S. Tsirkin, 2013/07/24
- Re: [Qemu-devel] [PATCH] pc: limit 64 bit hole to 2G by default, Andreas Färber, 2013/07/24
- Re: [Qemu-devel] [PATCH] pc: limit 64 bit hole to 2G by default, Gerd Hoffmann, 2013/07/24
- Re: [Qemu-devel] [PATCH] pc: limit 64 bit hole to 2G by default, Michael S. Tsirkin, 2013/07/24
- Re: [Qemu-devel] [PATCH] pc: limit 64 bit hole to 2G by default, Igor Mammedov, 2013/07/24
- Re: [Qemu-devel] [PATCH] pc: limit 64 bit hole to 2G by default, Paolo Bonzini, 2013/07/24
- Re: [Qemu-devel] [PATCH] pc: limit 64 bit hole to 2G by default, Michael S. Tsirkin, 2013/07/24
- Re: [Qemu-devel] [PATCH] pc: limit 64 bit hole to 2G by default, Paolo Bonzini, 2013/07/24
- Re: [Qemu-devel] [PATCH] pc: limit 64 bit hole to 2G by default, Michael S. Tsirkin, 2013/07/24
- Re: [Qemu-devel] [PATCH] pc: limit 64 bit hole to 2G by default,
Gerd Hoffmann <=
Re: [Qemu-devel] [PATCH] pc: limit 64 bit hole to 2G by default, Igor Mammedov, 2013/07/25