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[Qemu-devel] [V13 1/4] hw/pci: Prepare for AMD IOMMU
From: |
David Kiarie |
Subject: |
[Qemu-devel] [V13 1/4] hw/pci: Prepare for AMD IOMMU |
Date: |
Fri, 8 Jul 2016 11:18:20 +0300 |
Introduce PCI macros from for use by AMD IOMMU
Signed-off-by: David Kiarie <address@hidden>
---
include/hw/pci/pci.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
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
--
2.1.4