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Re: [Qemu-devel] [RFC] map 64-bit PCI devices after all possible RAM
From: |
Igor Mammedov |
Subject: |
Re: [Qemu-devel] [RFC] map 64-bit PCI devices after all possible RAM |
Date: |
Thu, 10 Oct 2013 15:50:54 +0200 |
On Thu, 10 Oct 2013 15:21:55 +0200
Gerd Hoffmann <address@hidden> wrote:
> Hi,
>
> > > Guess we can just go with Igor's approach then. "etc/mem64-end" is a
> > > pretty bad name to say "please map 64bit pci bars here" though.
> > reasoning bind was to tell BIOS where RAM ends and let it decide what
> > to do with this information.
> >
> > But we could do other way around and use "etc/pci-info" that was
> > proposed earlier by Michael, it is already committed into QEMU and
> > provides start/end of 32/64-bit PCI windows in QEMU view.
> > We could use pci-info.w64.start as base for 64-bit bars.
>
> We need only the single value from pci-info, I'd suggest to drop
> pci-info in favor of a file you can read using romfile_loadint.
Ok, then would "etc/pcimem64-start" be suitable or maybe you have a
suggestion?
Michael,
while at it, could we safely rip out "etc/pci-info" from QEMU?
It is disabled by pc_compat_1_6() in 1.6 but will appear in 1.7 again
if we don't remove it.
> cheers,
> Gerd
>
>
>
>
- [Qemu-devel] [RFC] map 64-bit PCI devices after all possible RAM, Igor Mammedov, 2013/10/09
- Re: [Qemu-devel] [RFC] map 64-bit PCI devices after all possible RAM, Gerd Hoffmann, 2013/10/09
- Re: [Qemu-devel] [RFC] map 64-bit PCI devices after all possible RAM, Igor Mammedov, 2013/10/09
- Re: [Qemu-devel] [RFC] map 64-bit PCI devices after all possible RAM, Gerd Hoffmann, 2013/10/10
- Re: [Qemu-devel] [RFC] map 64-bit PCI devices after all possible RAM, Michael S. Tsirkin, 2013/10/10
- Re: [Qemu-devel] [RFC] map 64-bit PCI devices after all possible RAM, Gerd Hoffmann, 2013/10/10
- Re: [Qemu-devel] [RFC] map 64-bit PCI devices after all possible RAM, Michael S. Tsirkin, 2013/10/10
- Re: [Qemu-devel] [RFC] map 64-bit PCI devices after all possible RAM, Gerd Hoffmann, 2013/10/10
- Re: [Qemu-devel] [RFC] map 64-bit PCI devices after all possible RAM, Igor Mammedov, 2013/10/10
- Re: [Qemu-devel] [RFC] map 64-bit PCI devices after all possible RAM, Gerd Hoffmann, 2013/10/10
- Re: [Qemu-devel] [RFC] map 64-bit PCI devices after all possible RAM,
Igor Mammedov <=
- Re: [Qemu-devel] [RFC] map 64-bit PCI devices after all possible RAM, Gerd Hoffmann, 2013/10/11
- Re: [Qemu-devel] [RFC] map 64-bit PCI devices after all possible RAM, Igor Mammedov, 2013/10/10
Re: [Qemu-devel] [RFC] map 64-bit PCI devices after all possible RAM, Michael S. Tsirkin, 2013/10/10