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[PULL,2/5] hw/pci: Prepare for AMD IOMMU

Message ID 1473798735-6290-3-git-send-email-mst@redhat.com (mailing list archive)
State New, archived
Headers show

Commit Message

Michael S. Tsirkin Sept. 13, 2016, 8:32 p.m. UTC 
From: David Kiarie <davidkiarie4@gmail.com>

Introduce PCI macros from for use by AMD IOMMU

Signed-off-by: David Kiarie <davidkiarie4@gmail.com>
---
 include/hw/pci/pci.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
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Patch

diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h
index e8b83bb..74bb15c 100644
--- a/include/hw/pci/pci.h
+++ b/include/hw/pci/pci.h
@@ -11,11 +11,13 @@ 
 #include "hw/pci/pcie.h"
 
 /* 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