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-rw-r--r--arch/x86/kernel/jailhouse.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/x86/kernel/jailhouse.c b/arch/x86/kernel/jailhouse.c
index 2b7ebbe9043d..b68fd895235a 100644
--- a/arch/x86/kernel/jailhouse.c
+++ b/arch/x86/kernel/jailhouse.c
@@ -119,8 +119,10 @@ static int __init jailhouse_pci_arch_init(void)
/*
* There are no bridges on the virtual PCI root bus under Jailhouse,
* thus no other way to discover all devices than a full scan.
+ * Respect any overrides via the command line, though.
*/
- pcibios_last_bus = 0xff;
+ if (pcibios_last_bus < 0)
+ pcibios_last_bus = 0xff;
return 0;
}