linux-kernel - [PATCH] x86: jailhouse: add PCI dependency

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Date:   Mon, 15 Jan 2018 16:51:20 +0100
From:   Arnd Bergmann <arnd@...db.de>
To:     Jan Kiszka <jan.kiszka@...mens.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org
Cc:     Arnd Bergmann <arnd@...db.de>, linux-kernel@...r.kernel.org
Subject: [PATCH] x86: jailhouse: add PCI dependency

Building jailhouse support without PCI results in a link error:

arch/x86/kernel/jailhouse.o: In function `jailhouse_init_platform':
jailhouse.c:(.init.text+0x235): undefined reference to `pci_probe'
arch/x86/kernel/jailhouse.o: In function `jailhouse_pci_arch_init':
jailhouse.c:(.init.text+0x265): undefined reference to `pci_direct_init'
jailhouse.c:(.init.text+0x26c): undefined reference to `pcibios_last_bus'

This adds the missing Kconfig dependency.

Fixes: a0c01e4bb92d ("x86/jailhouse: Initialize PCI support")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 arch/x86/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 10fcb4d147be..0878ff57fec3 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -813,7 +813,7 @@ config PARAVIRT_CLOCK
 
 config JAILHOUSE_GUEST
 	bool "Jailhouse non-root cell support"
-	depends on X86_64
+	depends on X86_64 && PCI
 	select X86_PM_TIMER
 	---help---
 	  This option allows to run Linux as guest in a Jailhouse non-root
-- 
2.9.0