Currently seabios assumes there is only one pci domain(0), and almost everything operates on pci domain 0 by default. This patch aims to add multiple pci domain support for pci_device, while reserve the original API for compatibility.
The reason to get seabios involved is that the pxb-pcie host bus created in QEMU is now in a different PCI domain, and its bus number would start from 0 instead of bus_nr. Actually bus_nr should not be used when in another non-zero domain. However, QEMU only binds port 0xcf8 and 0xcfc to bus pcie.0. To avoid bus confliction, we should use other port pairs for busses under new domains.
Current issues: * when trying to read config space of pcie_pci_bridge, it actually reads out the result of mch. I'm working on this weird behavior.
Changelog: v2 <- v1: - Fix bugs in filtering domains when traversing pci devices - Reformat some hardcoded codes, such as probing the pci device in pci_setup
Zihan Yang (3): fw/pciinit: Recognize pxb-pcie-dev device pci_device: Add pci domain support pci: filter undesired domain when traversing pci
src/fw/coreboot.c | 2 +- src/fw/csm.c | 2 +- src/fw/mptable.c | 1 + src/fw/paravirt.c | 3 +- src/fw/pciinit.c | 276 ++++++++++++++++++++++++++++++--------------------- src/hw/ahci.c | 1 + src/hw/ata.c | 1 + src/hw/esp-scsi.c | 1 + src/hw/lsi-scsi.c | 1 + src/hw/megasas.c | 1 + src/hw/mpt-scsi.c | 1 + src/hw/nvme.c | 1 + src/hw/pci.c | 69 +++++++------ src/hw/pci.h | 42 +++++--- src/hw/pci_ids.h | 6 +- src/hw/pcidevice.c | 11 +- src/hw/pcidevice.h | 8 +- src/hw/pvscsi.c | 1 + src/hw/sdcard.c | 1 + src/hw/usb-ehci.c | 1 + src/hw/usb-ohci.c | 1 + src/hw/usb-uhci.c | 1 + src/hw/usb-xhci.c | 1 + src/hw/virtio-blk.c | 1 + src/hw/virtio-scsi.c | 1 + src/optionroms.c | 3 + 26 files changed, 268 insertions(+), 170 deletions(-)
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Gerd Hoffmann -
Marcel Apfelbaum -
Zihan Yang