From: Jan Kiszka <jan.kis...@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.kis...@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

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