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UPSTREAM: PCI/MSI: Make pci_host_common_probe() declare its reliance on MSI domains

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The generic PCI host driver relies on MSI domains for MSIs to
be provided to its end-points. Make this dependency explicit.

This cures the warnings occuring on arm/arm64 VMs when booted
with PCI virtio devices and no MSI controller (no GICv3 ITS,
for example).

It is likely that other drivers will need to express the same
dependency.

Link: https://lore.kernel.org/r/20210330151145.997953-12-maz@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
(cherry picked from commit 9ec37efb87)
Signed-off-by: Marc Zyngier <mzyngier@google.com>
Change-Id: Ic23dfd828a02f16f5628172c31a1f84211ce3d29
Bug: 187801341
This commit is contained in:
Marc Zyngier
2021-03-30 16:11:42 +01:00
committed by Marc Zyngier
parent ae6334abd1
commit 63d15d76fa
1 changed files with 1 additions and 0 deletions
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1
drivers/pci/controller/pci-host-common.c
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@@ -77,6 +77,7 @@ int pci_host_common_probe(struct platform_device *pdev)
bridge->sysdata = cfg;
bridge->ops = (struct pci_ops *)&ops->pci_ops;
bridge->msi_domain = true;
platform_set_drvdata(pdev, bridge);