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Re: [Qemu-devel] [PATCH] hw/pci-host: Fix x86 Host Bridges 64bit PCI hol
From: |
Gerd Hoffmann |
Subject: |
Re: [Qemu-devel] [PATCH] hw/pci-host: Fix x86 Host Bridges 64bit PCI hole |
Date: |
Mon, 23 Oct 2017 11:16:16 +0200 |
On Mon, 2017-10-23 at 11:46 +0300, Marcel Apfelbaum wrote:
> On 23/10/2017 8:45, Gerd Hoffmann wrote:
> > Hi,
> >
> > > The guest will still run with 40 bits physical!
> > > (judging the code anyway, I hope I am wrong)
> > >
> > > Then, the stakes are not so big, the Guest kernel will disregard
> > > the 64bit hole since is not CPU addressable and go on.
> >
> > But then there is no working 64bit hole for hotplug ...
> >
>
> Hosts with old CPUs are not fit for modern PCIe devices
> having large BARs anyway, no 64bit hole in this case would
> be OK, I think.
Well, my workstation which has only 39 bits physical is kaby lake.
If you classify this as "old cpu", what is a new cpu then?
cheers,
Gerd
- Re: [Qemu-devel] [PATCH] hw/pci-host: Fix x86 Host Bridges 64bit PCI hole, (continued)
- Re: [Qemu-devel] [PATCH] hw/pci-host: Fix x86 Host Bridges 64bit PCI hole, Laszlo Ersek, 2017/10/19
- 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, 2017/10/19
- 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 <=
- Re: [Qemu-devel] [PATCH] hw/pci-host: Fix x86 Host Bridges 64bit PCI hole, Marcel Apfelbaum, 2017/10/23