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Re: [Qemu-devel] [PATCH 2/2 RFC] s390x/pci: rework pci infrastructure mo
From: |
Frank Blaschka |
Subject: |
Re: [Qemu-devel] [PATCH 2/2 RFC] s390x/pci: rework pci infrastructure modeling |
Date: |
Thu, 12 Mar 2015 09:46:44 +0100 |
User-agent: |
Mutt/1.5.17 (2007-11-01) |
On Wed, Mar 11, 2015 at 03:57:05PM +0100, Michael S. Tsirkin wrote:
> On Wed, Mar 11, 2015 at 03:38:44PM +0100, Frank Blaschka wrote:
> > I like Alex's idea because:
> > 1) It reflects pretty well the actual nature of the pci system in real s390
> > hw
>
> why do you say this? does real hw has this
> one device per bridge limit?
>
Actually we don't know. HW does not expose this information. All we know is each
pci function is completely separated. So it is a good assumption to have a
separate
bridge/bus for each pci function. By the way the Linux kernel for s390 makes the
same assumption by creating a new pci domain for each function. You may want
to read the cover letter again to get more technical details on this.
- [Qemu-devel] [PATCH 0/2 RFC] Extend s390 pci representation in qemu V2, Frank Blaschka, 2015/03/10
- [Qemu-devel] [PATCH 1/2 RFC] pci: detangle Sysbus PCI bridge from PCIBus, Frank Blaschka, 2015/03/10
- [Qemu-devel] [PATCH 2/2 RFC] s390x/pci: rework pci infrastructure modeling, Frank Blaschka, 2015/03/10
- Re: [Qemu-devel] [PATCH 2/2 RFC] s390x/pci: rework pci infrastructure modeling, Michael S. Tsirkin, 2015/03/11
- Re: [Qemu-devel] [PATCH 2/2 RFC] s390x/pci: rework pci infrastructure modeling, Frank Blaschka, 2015/03/12
- Re: [Qemu-devel] [PATCH 2/2 RFC] s390x/pci: rework pci infrastructure modeling, Michael S. Tsirkin, 2015/03/12
- Re: [Qemu-devel] [PATCH 2/2 RFC] s390x/pci: rework pci infrastructure modeling, Frank Blaschka, 2015/03/12
- Re: [Qemu-devel] [PATCH 2/2 RFC] s390x/pci: rework pci infrastructure modeling, Frank Blaschka, 2015/03/12
- Re: [Qemu-devel] [PATCH 2/2 RFC] s390x/pci: rework pci infrastructure modeling, Alexander Graf, 2015/03/12
- Re: [Qemu-devel] [PATCH 2/2 RFC] s390x/pci: rework pci infrastructure modeling, Michael S. Tsirkin, 2015/03/12
- Re: [Qemu-devel] [PATCH 2/2 RFC] s390x/pci: rework pci infrastructure modeling, Alexander Graf, 2015/03/17
- Re: [Qemu-devel] [PATCH 2/2 RFC] s390x/pci: rework pci infrastructure modeling, Frank Blaschka, 2015/03/17