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Re: [Qemu-devel] [RFC v5 86/86] 440fx: fix PAM, PCI holes
From: |
Gleb Natapov |
Subject: |
Re: [Qemu-devel] [RFC v5 86/86] 440fx: fix PAM, PCI holes |
Date: |
Mon, 25 Jul 2011 16:50:52 +0300 |
On Mon, Jul 25, 2011 at 08:47:31AM -0500, Anthony Liguori wrote:
> On 07/25/2011 08:38 AM, Avi Kivity wrote:
> >On 07/25/2011 04:35 PM, Gleb Natapov wrote:
> >>>
> >>> That's the ISA TOM (15MB hole and friends).
> >>>
> >>Correct. What about:
> >>3.2.19. DRB[0:7] DRAM ROW BOUNDARY REGISTERS
> >>
> >>from 440fx spec?
> >>
> >
> >Maybe. But we can't use that, since it ignores address line 31.
> >
> >(440fx supports only 1GB RAM, and we're ignoring that)
>
> What are we trying to do?
>
I just tried to answer Avi's question about TOM register.
> Can't we just register highest RAM address under 4G to 4G as PCI
> memory and call it a day?
>
It is good idea to emulate existing functionality as close as possible,
but if existing functionality does not satisfy us (like in our case)
then yes, we can.
> Do we really need a guest visible register to do this?
>
> Regards,
>
> Anthony Liguori
>
> >
--
Gleb.
- [Qemu-devel] [RFC v5 86/86] 440fx: fix PAM, PCI holes, (continued)
- [Qemu-devel] [RFC v5 86/86] 440fx: fix PAM, PCI holes, Avi Kivity, 2011/07/20
- Re: [Qemu-devel] [RFC v5 86/86] 440fx: fix PAM, PCI holes, Anthony Liguori, 2011/07/25
- Re: [Qemu-devel] [RFC v5 86/86] 440fx: fix PAM, PCI holes, Avi Kivity, 2011/07/25
- Re: [Qemu-devel] [RFC v5 86/86] 440fx: fix PAM, PCI holes, Gleb Natapov, 2011/07/25
- Re: [Qemu-devel] [RFC v5 86/86] 440fx: fix PAM, PCI holes, Avi Kivity, 2011/07/25
- Re: [Qemu-devel] [RFC v5 86/86] 440fx: fix PAM, PCI holes, Gleb Natapov, 2011/07/25
- Re: [Qemu-devel] [RFC v5 86/86] 440fx: fix PAM, PCI holes, Avi Kivity, 2011/07/25
- Re: [Qemu-devel] [RFC v5 86/86] 440fx: fix PAM, PCI holes, Gleb Natapov, 2011/07/25
- Re: [Qemu-devel] [RFC v5 86/86] 440fx: fix PAM, PCI holes, Avi Kivity, 2011/07/25
- Re: [Qemu-devel] [RFC v5 86/86] 440fx: fix PAM, PCI holes, Anthony Liguori, 2011/07/25
- Re: [Qemu-devel] [RFC v5 86/86] 440fx: fix PAM, PCI holes,
Gleb Natapov <=
- Re: [Qemu-devel] [RFC v5 86/86] 440fx: fix PAM, PCI holes, Avi Kivity, 2011/07/25
- Re: [Qemu-devel] [RFC v5 86/86] 440fx: fix PAM, PCI holes, Anthony Liguori, 2011/07/25
- Re: [Qemu-devel] [RFC v5 86/86] 440fx: fix PAM, PCI holes, Avi Kivity, 2011/07/25
- Re: [Qemu-devel] [RFC v5 86/86] 440fx: fix PAM, PCI holes, Anthony Liguori, 2011/07/25
Re: [Qemu-devel] [RFC v5 86/86] 440fx: fix PAM, PCI holes, Eric Northup, 2011/07/25
[Qemu-devel] [RFC v5 11/86] memory: add backward compatibility for old mmio registration, Avi Kivity, 2011/07/20
[Qemu-devel] [RFC v5 77/86] sysbus: add a variant of sysbus_init_mmio_cb with an unmap callback, Avi Kivity, 2011/07/20
[Qemu-devel] [RFC v5 37/86] e1000: convert to memory API, Avi Kivity, 2011/07/20
[Qemu-devel] [RFC v5 02/86] Hierarchical memory region API, Avi Kivity, 2011/07/20