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util/qemu: Revise q35 configs

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Add an NVMe drive and be more conservative with hotplug-capable PCIe
ports. QEMU treats everything as hotpluggable by default, so devices
can be added at runtime. However, this leads to unrealistic resource
allocations with PCIEXP_HOTPLUG enabled.

Tested recent allocator changes with QEMU/Q35 config and:

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

Change-Id: I23746b642329356c6767b04ec177cd9411e3adb9
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/67026
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
This commit is contained in:
Nico Huber
2022-08-24 18:42:22 +02:00
committed by Martin L Roth
parent 912edb4f0f
commit b992df9891
2 changed files with 14 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
util/qemu/q35-alpine.cfg
View File

@@ -9,6 +9,7 @@
bus = "alpine-root"
addr = "00.0"
chassis = "10"
hotplug = "off"
[device "alpine-nhi"]
driver = "pci-testdev"
@@ -21,6 +22,7 @@
bus = "alpine-root"
addr = "01.0"
chassis = "11"
hotplug = "off"
[device "alpine-up"]
driver = "x3130-upstream"
@@ -48,6 +50,7 @@
bus = "alpine-up"
addr = "04.0"
chassis = "24"
hotplug = "off"
[device "alpine-xhci"]
driver = "nec-usb-xhci"
@@ -59,3 +62,4 @@
bus = "alpine-root"
addr = "02.0"
chassis = "12"
hotplug = "off"

10
util/qemu/q35-base.cfg
View File

@@ -18,7 +18,13 @@
driver = "pcie-root-port"
bus = "pcie.0"
addr = "01.0"
hotplug = "off"
[device "ssd"]
driver = "nvme"
bus = "q35-peg"
addr = "00.0"
serial = "0"
[device "q35-igpu"]
driver = "VGA"
@@ -85,6 +91,7 @@
addr = "1c.0"
port = "1"
chassis = "1"
hotplug = "off"
[device "ich9-pcie-port-2"]
driver = "ioh3420"
@@ -93,6 +100,7 @@
addr = "1c.1"
port = "2"
chassis = "2"
hotplug = "off"
[device "ich9-pcie-port-3"]
driver = "ioh3420"
@@ -101,6 +109,7 @@
addr = "1c.2"
port = "3"
chassis = "3"
hotplug = "off"
[device "ich9-pcie-port-4"]
driver = "ioh3420"
@@ -109,6 +118,7 @@
addr = "1c.3"
port = "4"
chassis = "4"
hotplug = "off"
[device "ich9-pcie-port-5"]
driver = "ioh3420"