35 lines
1.1 KiB
Diff
35 lines
1.1 KiB
Diff
|
From 9ec37efb87832b578d7972fc80b04d94f5d2bbe3 Mon Sep 17 00:00:00 2001
|
||
|
|
From: Marc Zyngier <maz@kernel.org>
|
||
|
|
Date: Tue, 30 Mar 2021 16:11:42 +0100
|
||
|
|
Subject: PCI/MSI: Make pci_host_common_probe() declare its reliance on MSI
|
||
|
|
domains
|
||
|
|
|
||
|
|
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>
|
||
|
|
---
|
||
|
|
drivers/pci/controller/pci-host-common.c | 1 +
|
||
|
|
1 file changed, 1 insertion(+)
|
||
|
|
|
||
|
|
--- a/drivers/pci/controller/pci-host-common.c
|
||
|
|
+++ b/drivers/pci/controller/pci-host-common.c
|
||
|
|
@@ -77,6 +77,7 @@ int pci_host_common_probe(struct platfor
|
||
|
|
|
||
|
|
bridge->sysdata = cfg;
|
||
|
|
bridge->ops = (struct pci_ops *)&ops->pci_ops;
|
||
|
|
+ bridge->msi_domain = true;
|
||
|
|
|
||
|
|
platform_set_drvdata(pdev, bridge);
|
||
|
|
|