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hw/pci: Prepare for AMD IOMMU 

Introduce PCI macros from for use by AMD IOMMU

Signed-off-by: David Kiarie <davidkiarie4@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
David Kiarie 2016-09-20 18:42:31 +03:00 committed by Michael S. Tsirkin
parent fb1131b674
commit ab71cc0d58
1 changed files with 3 additions and 0 deletions
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3
include/hw/pci/pci.h
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@ -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