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 : +-[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.
