linux-kernel - [PATCH v4 8/8] PCI: Enable PCI_DOMAINS along with generic PCI host controller

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Message-Id: <4896b00d5f8142aff8f928863364c770b5c5156d.1526375226.git.jan.kiszka@siemens.com>
Date:   Tue, 15 May 2018 11:07:07 +0200
From:   Jan Kiszka <jan.kiszka@...mens.com>
To:     Bjorn Helgaas <bhelgaas@...gle.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-pci@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Cc:     Vladimir Zapolskiy <vladimir_zapolskiy@...tor.com>
Subject: [PATCH v4 8/8] PCI: Enable PCI_DOMAINS along with generic PCI host controller

From: Jan Kiszka <jan.kiszka@...mens.com>

This controller is often instantiated by hypervisors, and they may add
multiple of them or add them in addition to a physical host controller
like the Jailhouse hypervisor is doing. Therefore allow for multiple
domains so that we can handle them all.

Signed-off-by: Jan Kiszka <jan.kiszka@...mens.com>
---
 drivers/pci/host/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/host/Kconfig b/drivers/pci/host/Kconfig
index 0d0177ce436c..3d25b35bb5ab 100644
--- a/drivers/pci/host/Kconfig
+++ b/drivers/pci/host/Kconfig
@@ -68,6 +68,7 @@ config PCI_HOST_GENERIC
 	depends on (ARM || ARM64) && OF
 	select PCI_HOST_COMMON
 	select IRQ_DOMAIN
+	select PCI_DOMAINS
 	help
 	  Say Y here if you want to support a simple generic PCI host
 	  controller, such as the one emulated by kvmtool.
-- 
2.13.6