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Re: [Qemu-devel] [PATCH 08/12] pci: allow 0 address for PCI IO regions
From: |
Peter Maydell |
Subject: |
Re: [Qemu-devel] [PATCH 08/12] pci: allow 0 address for PCI IO regions |
Date: |
Thu, 28 Aug 2014 22:33:02 +0100 |
On 28 August 2014 22:21, Michael Roth <address@hidden> wrote:
> But I guess there's still a separate issue, where there's a high liklihood
> that
> a 0 address would conflict with some hard-wired IO address? Wouldn't this be a
> guest bug though?
Even if it's a guest bug, we should act like the hardware does
if the guest does this. If that differs between PCI controllers
then we need a flag so the host controller model can select
the required behaviour. (The versatile PB PCI controller we
model does have "address 0 is valid", and we'd need to have
this working if we implemented DMA accesses properly.)
-- PMM
- [Qemu-devel] [PATCH 07/12] spapr_pci: add ibm, configure-connector RTAS interface, (continued)
[Qemu-devel] [PATCH 01/12] spapr: populate DRC entries for root dt node, Michael Roth, 2014/08/18
- Re: [Qemu-devel] [PATCH 01/12] spapr: populate DRC entries for root dt node, Alexey Kardashevskiy, 2014/08/26
- Re: [Qemu-devel] [PATCH 01/12] spapr: populate DRC entries for root dt node, Alexey Kardashevskiy, 2014/08/26
- Re: [Qemu-devel] [PATCH 01/12] spapr: populate DRC entries for root dt node, Michael Roth, 2014/08/26
- Re: [Qemu-devel] [PATCH 01/12] spapr: populate DRC entries for root dt node, Michael Roth, 2014/08/26
- Re: [Qemu-devel] [PATCH 01/12] spapr: populate DRC entries for root dt node, Tyrel Datwyler, 2014/08/29
- Re: [Qemu-devel] [PATCH 01/12] spapr: populate DRC entries for root dt node, Alexander Graf, 2014/08/29
Re: [Qemu-devel] [PATCH 01/12] spapr: populate DRC entries for root dt node, Michael Roth, 2014/08/26
Re: [Qemu-devel] [PATCH 01/12] spapr: populate DRC entries for root dt node, Alexander Graf, 2014/08/26