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[v19,1/4] hw/pci: Prepare for AMD IOMMU

Message ID 1474386154-2793-2-git-send-email-davidkiarie4@gmail.com
State New
Headers show

Commit Message

David Kiarie Sept. 20, 2016, 3:42 p.m. UTC
Introduce PCI macros from for use by AMD IOMMU

Signed-off-by: David Kiarie <davidkiarie4@gmail.com>
---
 include/hw/pci/pci.h | 3 +++
 1 file changed, 3 insertions(+)
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Patch

diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h
index e8b83bb..772692f 100644
--- a/include/hw/pci/pci.h
+++ b/include/hw/pci/pci.h
@@ -13,9 +13,12 @@ 
 /* PCI bus */
 
 #define PCI_DEVFN(slot, func)   ((((slot) & 0x1f) << 3) | ((func) & 0x07))
+#define PCI_BUS_NUM(x)          (((x) >> 8) & 0xff)
 #define PCI_SLOT(devfn)         (((devfn) >> 3) & 0x1f)
 #define PCI_FUNC(devfn)         ((devfn) & 0x07)
 #define PCI_BUILD_BDF(bus, devfn)     ((bus << 8) | (devfn))
+#define PCI_BUS_MAX             256
+#define PCI_DEVFN_MAX           256
 #define PCI_SLOT_MAX            32
 #define PCI_FUNC_MAX            8