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Diffstat (limited to 'include/hw/pci-host/spapr.h')
-rw-r--r--include/hw/pci-host/spapr.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/include/hw/pci-host/spapr.h b/include/hw/pci-host/spapr.h
index a65cfef..4eb3a2c 100644
--- a/include/hw/pci-host/spapr.h
+++ b/include/hw/pci-host/spapr.h
@@ -94,11 +94,13 @@ struct sPAPRPHBState {
((1ULL << 32) - SPAPR_PCI_MEM_WIN_BUS_OFFSET)
#define SPAPR_PCI_MEM64_WIN_SIZE 0x10000000000ULL /* 1 TiB */
-/* Without manual configuration, all PCI outbound windows will be
- * within this range */
+/* All PCI outbound windows will be within this range */
#define SPAPR_PCI_BASE (1ULL << 45) /* 32 TiB */
#define SPAPR_PCI_LIMIT (1ULL << 46) /* 64 TiB */
+#define SPAPR_MAX_PHBS ((SPAPR_PCI_LIMIT - SPAPR_PCI_BASE) / \
+ SPAPR_PCI_MEM64_WIN_SIZE - 1)
+
#define SPAPR_PCI_2_7_MMIO_WIN_SIZE 0xf80000000
#define SPAPR_PCI_IO_WIN_SIZE 0x10000