On Wed, Jan 29, 2020 at 02:15:35PM +0100, Cédric Le Goater wrote: > On 1/29/20 7:31 AM, David Gibson wrote: > > On Mon, Jan 27, 2020 at 03:45:04PM +0100, Cédric Le Goater wrote: > >> Hello, > >> > >> These are models for the PCIe Host Bridges, PHB3 and PHB4, as found on > >> POWER8 and POWER9 processors. It includes the PowerBus logic interface > >> (PBCQ), IOMMU support, a single PCIe Gen.3/4 Root Complex, and support > >> for MSI and LSI interrupt sources as found on each system depending on > >> the interrupt controller: XICS or XIVE. > >> > >> No default device layout is provided and PCI devices can be added on > >> any of the available PCIe Root Port (pcie.0 .. 2) with address 0x0 as > >> the firwware (skiboot) only accepts a single device per root port. To > >> run a simple system with a network and a storage adapters, use a > >> command line options such as : > >> > >> -device e1000e,netdev=net0,mac=C0:FF:EE:00:00:02,bus=pcie.0,addr=0x0 > >> -netdev > >> bridge,id=net0,helper=/usr/libexec/qemu-bridge-helper,br=virbr0,id=hostnet0 > >> > >> -device megasas,id=scsi0,bus=pcie.1,addr=0x0 > >> -drive file=$disk,if=none,id=drive-scsi0-0-0-0,format=qcow2,cache=none > >> -device > >> scsi-hd,bus=scsi0.0,channel=0,scsi-id=0,lun=0,drive=drive-scsi0-0-0-0,id=scsi0-0-0-0,bootindex=2 > >> > >> If more are needed, include a bridge. > >> > >> Multi chip is supported, each chip adding its set of PHB controllers > >> and its PCI busses. The model doesn't emulate the EEH error handling > >> and cold plugging PHB devices still needs some work. > >> > >> XICS requires some adjustment to support the PHB3 MSI. The changes are > >> provided in the PHB3 model but they could be decoupled in prereq > >> patches. > > > > Applied to ppc-for-5.0, thanks. > > Should we add a default set of devices on PHB1 like found on OpenPOWER > system ? On a P8 we have :
I think that's kind of up to you.
>
>
> +-[0001:00]---00.0-[01-07]----00.0-[02-07]--+-01.0-[03-04]----00.0-[04]----00.0
> ASPEED Technology, Inc. ASPEED Graphics Family
> | +-02.0-[05]----00.0 Texas
> Instruments TUSB73x0 SuperSpeed USB 3.0 xHCI Host Controller
> | +-03.0-[06]--+-00.0 Broadcom
> Inc. and subsidiaries NetXtreme BCM5718 Gigabit Ethernet PCIe
> | | \-00.1 Broadcom
> Inc. and subsidiaries NetXtreme BCM5718 Gigabit Ethernet PCIe
> | \-04.0-[07]----00.0 Marvell
> Technology Group Ltd. 88SE9235 PCIe 2.0 x2 4-port SATA 6 Gb/s Controller
>
>
> C.
>
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
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