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[v3,kvmtool,06/32] arm/pci: Advertise only PCI bus 0 in the DT

Message ID 20200326152438.6218-7-alexandru.elisei@arm.com (mailing list archive)
State New, archived
Headers show
Series Add reassignable BARs and PCIE 1.1 support | expand

Commit Message

Alexandru Elisei March 26, 2020, 3:24 p.m. UTC 
The "bus-range" property encodes the PCI bus number of the PCI
controller and the largest bus number of any PCI buses that are
subordinate to this node [1]. kvmtool emulates only PCI bus 0.
Advertise this in the PCI DT node by setting "bus-range" to <0,0>.

[1] IEEE Std 1275-1994, Section 3 "Bus Nodes Properties and Methods"

Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Alexandru Elisei <alexandru.elisei@arm.com>
---
 arm/pci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/arm/pci.c b/arm/pci.c
index 557cfa98938d..ed325fa4a811 100644
--- a/arm/pci.c
+++ b/arm/pci.c
@@ -30,7 +30,7 @@  void pci__generate_fdt_nodes(void *fdt)
 	struct of_interrupt_map_entry irq_map[OF_PCI_IRQ_MAP_MAX];
 	unsigned nentries = 0;
 	/* Bus range */
-	u32 bus_range[] = { cpu_to_fdt32(0), cpu_to_fdt32(1), };
+	u32 bus_range[] = { cpu_to_fdt32(0), cpu_to_fdt32(0), };
 	/* Configuration Space */
 	u64 cfg_reg_prop[] = { cpu_to_fdt64(KVM_PCI_CFG_AREA),
 			       cpu_to_fdt64(ARM_PCI_CFG_SIZE), };