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Re: [Qemu-devel] [PATCH] hw/pci-host: Fix x86 Host Bridges 64bit PCI hol
From: |
Marcel Apfelbaum |
Subject: |
Re: [Qemu-devel] [PATCH] hw/pci-host: Fix x86 Host Bridges 64bit PCI hole |
Date: |
Thu, 19 Oct 2017 16:34:46 +0300 |
User-agent: |
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:52.0) Gecko/20100101 Thunderbird/52.4.0 |
On 19/10/2017 16:03, Gerd Hoffmann wrote:
Hi,
- commit 39848901818 pc: limit 64 bit hole to 2G by default
shows us QEMU had the 64bit PCI hole, so it is a regression.
commit message says:
<quote>
It turns out that some 32 bit windows guests crash
if 64 bit PCI hole size is >2G.
</quote>
Why this suddenly isn't a problem any more?
I suppose it is, so we need a way to turn it "off".
Also: how about just using the existing pci_hole64_size property?
This is how I started, however Eduardo and (and maybe Michael ?)
where against letting the upper management software to deal with
such a low low level detail. They simply can't take such a decision.
This is why the property you mentioned is not ever linked
in code anywhere! It is simply not implemented and not used.
What about renaming the added compat property
from x-pci-hole64-fix to pci-hole64? Users using 32-bit Windows
guests having the mentioned issue guests will disable it.
Thanks,
Marcel
cheers,
Gerd
- [Qemu-devel] [PATCH] hw/pci-host: Fix x86 Host Bridges 64bit PCI hole, Marcel Apfelbaum, 2017/10/18
- Re: [Qemu-devel] [PATCH] hw/pci-host: Fix x86 Host Bridges 64bit PCI hole, Igor Mammedov, 2017/10/18
- Re: [Qemu-devel] [PATCH] hw/pci-host: Fix x86 Host Bridges 64bit PCI hole, Laszlo Ersek, 2017/10/18
- Re: [Qemu-devel] [PATCH] hw/pci-host: Fix x86 Host Bridges 64bit PCI hole, Gerd Hoffmann, 2017/10/19
- Re: [Qemu-devel] [PATCH] hw/pci-host: Fix x86 Host Bridges 64bit PCI hole,
Marcel Apfelbaum <=
- Re: [Qemu-devel] [PATCH] hw/pci-host: Fix x86 Host Bridges 64bit PCI hole, Gerd Hoffmann, 2017/10/20
- Re: [Qemu-devel] [PATCH] hw/pci-host: Fix x86 Host Bridges 64bit PCI hole, Laszlo Ersek, 2017/10/20
- Re: [Qemu-devel] [PATCH] hw/pci-host: Fix x86 Host Bridges 64bit PCI hole, Gerd Hoffmann, 2017/10/20
- Re: [Qemu-devel] [PATCH] hw/pci-host: Fix x86 Host Bridges 64bit PCI hole, Marcel Apfelbaum, 2017/10/20
- Re: [Qemu-devel] [PATCH] hw/pci-host: Fix x86 Host Bridges 64bit PCI hole, Marcel Apfelbaum, 2017/10/20
- Re: [Qemu-devel] [PATCH] hw/pci-host: Fix x86 Host Bridges 64bit PCI hole, Gerd Hoffmann, 2017/10/23
- Re: [Qemu-devel] [PATCH] hw/pci-host: Fix x86 Host Bridges 64bit PCI hole, Marcel Apfelbaum, 2017/10/23
- Re: [Qemu-devel] [PATCH] hw/pci-host: Fix x86 Host Bridges 64bit PCI hole, Gerd Hoffmann, 2017/10/23
- Re: [Qemu-devel] [PATCH] hw/pci-host: Fix x86 Host Bridges 64bit PCI hole, Marcel Apfelbaum, 2017/10/23