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[V13,1/4] hw/pci: Prepare for AMD IOMMU

Message ID 1467965903-22766-2-git-send-email-davidkiarie4@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

David Kiarie July 8, 2016, 8:18 a.m. UTC 
Introduce PCI macros from for use by AMD IOMMU

Signed-off-by: David Kiarie <davidkiarie4@gmail.com>
---
 include/hw/pci/pci.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
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Patch

diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h
index 9ed1624..959d05b 100644
--- a/include/hw/pci/pci.h
+++ b/include/hw/pci/pci.h
@@ -11,11 +11,14 @@ 
 #include "hw/pci/pcie.h"
 
 /* PCI bus */
-
+#define PCI_BDF(bus, devfn)     ((((uint16_t)(bus)) << 8) | (devfn))
 #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