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From: Jan Kiszka <jan.kiszka@siemens.com>
To: Bjorn Helgaas <bhelgaas@google.com>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Subject: [PATCH 6/6] arm: Allow to enable PCI_DOMAINS manually
Date: Tue, 24 Apr 2018 17:13:42 +0200	[thread overview]
Message-ID: <4b97c00b9cd72f508aa27f0b58711d73de2cd397.1524582822.git.jan.kiszka@siemens.com> (raw)
In-Reply-To: <cover.1524582822.git.jan.kiszka@siemens.com>
In-Reply-To: <cover.1524582822.git.jan.kiszka@siemens.com>

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

Required when running over Jailhouse, and there is already a physical
host controller that Jailhouse does not intercept and rather adds a
virtual one. That is the case for the Tegra TK1, e.g.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
---
 arch/arm/Kconfig | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index a7f8e7f4b88f..5f8190cb057d 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1248,8 +1248,13 @@ config PCI
 	  VESA. If you have PCI, say Y, otherwise N.
 
 config PCI_DOMAINS
-	bool
+	bool "Support for multiple PCI domains"
 	depends on PCI
+	help
+	  Automatically enabled if the platform supports multiple PCI host
+	  controllers. Say Y if running over a hypervisor like Jailhouse that
+	  dynamically adds further host controllers while the system is
+	  running. Say N otherwise.
 
 config PCI_DOMAINS_GENERIC
 	def_bool PCI_DOMAINS
-- 
2.13.6

  parent reply	other threads:[~2018-04-24 15:31 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-24 15:13 [PATCH 0/6] PCI: leak fixes, removable generic PCI host, assorted stuff Jan Kiszka
2018-04-24 15:13 ` [PATCH 1/6] PCI: Make pci_get_new_domain_nr static Jan Kiszka
2018-04-25 16:27   ` Lorenzo Pieralisi
2018-04-25 17:21     ` Jan Kiszka
2018-04-24 15:13 ` [PATCH 2/6] PCI: Fix memory leak of devm_pci_alloc_host_bridge Jan Kiszka
2018-04-24 15:13 ` [PATCH 3/6] PCI: Introduce devm_of_pci_get_host_bridge_resources Jan Kiszka
2018-04-25 10:40   ` Jan Kiszka
2018-04-27 22:24   ` Bjorn Helgaas
2018-04-28  7:28     ` Jan Kiszka
2018-04-30 18:40       ` Bjorn Helgaas
2018-04-30 18:43         ` Sinan Kaya
2018-05-02  5:39           ` Jan Kiszka
2018-04-24 15:13 ` [PATCH 4/6] PCI: Convert of_pci_get_host_bridge_resources users to devm variant Jan Kiszka
2018-04-25 19:47   ` Jingoo Han
2018-04-24 15:13 ` [PATCH 5/6] PCI: Add support for unbinding the generic PCI host controller Jan Kiszka
2018-04-24 15:13 ` Jan Kiszka [this message]
2018-04-25 17:54   ` [PATCH 6/6] arm: Allow to enable PCI_DOMAINS manually Lorenzo Pieralisi
2018-04-26  7:19     ` Jan Kiszka
2018-04-27 22:16 ` [PATCH 0/6] PCI: leak fixes, removable generic PCI host, assorted stuff Bjorn Helgaas

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