35 lines
1.1 KiB
Diff
35 lines
1.1 KiB
Diff
From 9ec37efb87832b578d7972fc80b04d94f5d2bbe3 Mon Sep 17 00:00:00 2001
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From: Marc Zyngier <maz@kernel.org>
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Date: Tue, 30 Mar 2021 16:11:42 +0100
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Subject: PCI/MSI: Make pci_host_common_probe() declare its reliance on MSI
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domains
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The generic PCI host driver relies on MSI domains for MSIs to
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be provided to its end-points. Make this dependency explicit.
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This cures the warnings occuring on arm/arm64 VMs when booted
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with PCI virtio devices and no MSI controller (no GICv3 ITS,
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for example).
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It is likely that other drivers will need to express the same
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dependency.
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Link: https://lore.kernel.org/r/20210330151145.997953-12-maz@kernel.org
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Signed-off-by: Marc Zyngier <maz@kernel.org>
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Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
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Acked-by: Bjorn Helgaas <bhelgaas@google.com>
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---
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drivers/pci/controller/pci-host-common.c | 1 +
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1 file changed, 1 insertion(+)
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--- a/drivers/pci/controller/pci-host-common.c
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+++ b/drivers/pci/controller/pci-host-common.c
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@@ -77,6 +77,7 @@ int pci_host_common_probe(struct platfor
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bridge->sysdata = cfg;
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bridge->ops = (struct pci_ops *)&ops->pci_ops;
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+ bridge->msi_domain = true;
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platform_set_drvdata(pdev, bridge);
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