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kconfig: Add PCIe devices to s390x machines

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It is useful to extend the number of available PCIe devices to KVM guests
for passthrough scenarios and also to expose these models to a different
(big endian) architecture. Introduce a new config PCIE_DEVICES to select
models, Intel Ethernet adapters and one USB controller. These devices all
support MSI-X which is a requirement on s390x as legacy INTx are not
supported.

Cc: Matthew Rosato <mjrosato@linux.ibm.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Thomas Huth <thuth@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Message-ID: <20230712080146.839113-1-clg@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Cédric Le Goater 2023-07-12 10:01:46 +02:00 committed by Paolo Bonzini
parent 230dfd9257
commit cc9ff56fc3
5 changed files with 9 additions and 4 deletions
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1
configs/devices/s390x-softmmu/default.mak
View File

@ -7,6 +7,7 @@
#CONFIG_VFIO_CCW=n
#CONFIG_VIRTIO_PCI=n
#CONFIG_WDT_DIAG288=n
#CONFIG_PCIE_DEVICES=n
# Boards:
#

4
hw/net/Kconfig
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@ -41,12 +41,12 @@ config E1000_PCI
config E1000E_PCI_EXPRESS
bool
default y if PCI_DEVICES
default y if PCI_DEVICES || PCIE_DEVICES
depends on PCI_EXPRESS && MSI_NONBROKEN
config IGB_PCI_EXPRESS
bool
default y if PCI_DEVICES
default y if PCI_DEVICES || PCIE_DEVICES
depends on PCI_EXPRESS && MSI_NONBROKEN
config RTL8139_PCI

3
hw/pci/Kconfig
View File

@ -8,6 +8,9 @@ config PCI_EXPRESS
config PCI_DEVICES
bool
config PCIE_DEVICES
bool
config MSI_NONBROKEN
# selected by interrupt controllers that do not support MSI,
# or support it and have a good implementation. See commit

3
hw/s390x/Kconfig
View File

@ -5,7 +5,8 @@ config S390_CCW_VIRTIO
imply VFIO_AP
imply VFIO_CCW
imply WDT_DIAG288
select PCI
imply PCIE_DEVICES
select PCI_EXPRESS
select S390_FLIC
select SCLPCONSOLE
select VIRTIO_CCW

2
hw/usb/Kconfig
View File

@ -36,7 +36,7 @@ config USB_XHCI
config USB_XHCI_PCI
bool
default y if PCI_DEVICES
default y if PCI_DEVICES || PCIE_DEVICES
depends on PCI
select USB_XHCI