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util/qemu: Add additional config file for QEMU/Q35 

The `q35-alpine.cfg` adds a lot of PCIe devices to resemble the
topology inside an Intel Alpine Ridge Thunderbolt controller.
By no means could this be detected as such a controller. But
having a real-world example of such a topology can help to
test the allocator and other algorithms on a deeper tree.

It adds two levels of PCIe switches (`alpine-root` and
`alpine-1`), and two endpoints (a `pci-testdev` and an xHCI
controller).

It can be added to the default `q35-base.cfg` config, e.g.
with:

    $ make qemu QEMU_EXTRA_CFGS=util/qemu/q35-alpine.cfg

Change-Id: Ieab09c5b67a5aafa986e7d68a6c1a974530408b0
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51329
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Nico Huber 2021-03-07 16:38:50 +01:00
parent c2ffe89f77
commit a6a8df39e1
1 changed files with 61 additions and 0 deletions
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61
util/qemu/q35-alpine.cfg Normal file
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# Try to resemble an Alpine Ridge topology
[device "alpine-root"]
driver = "x3130-upstream"
bus = "ich9-pcie-port-1"
addr = "00.0"
[device "alpine-0"]
driver = "xio3130-downstream"
bus = "alpine-root"
addr = "00.0"
chassis = "10"
[device "alpine-nhi"]
driver = "pci-testdev"
bus = "alpine-0"
addr = "00.0"
membar = "1M"
[device "alpine-1"]
driver = "xio3130-downstream"
bus = "alpine-root"
addr = "01.0"
chassis = "11"
[device "alpine-up"]
driver = "x3130-upstream"
bus = "alpine-1"
addr = "00.0"
[device "alpine-down0"]
driver = "xio3130-downstream"
bus = "alpine-up"
addr = "00.0"
chassis = "20"
# TBT device here
[device "alpine-down1"]
driver = "xio3130-downstream"
bus = "alpine-up"
addr = "01.0"
chassis = "21"
# TBT device here
[device "alpine-down4"]
driver = "xio3130-downstream"
bus = "alpine-up"
addr = "04.0"
chassis = "24"
[device "alpine-xhci"]
driver = "nec-usb-xhci"
bus = "alpine-down4"
addr = "00.0"
[device "alpine-2"]
driver = "xio3130-downstream"
bus = "alpine-root"
addr = "02.0"
chassis = "12"