[Xen-devel] [PATCH v10 4/5] pci: add PCI_SBDF and PCI_SEG macros

[elena.ufimtseva@xxxxxxxxxx]

From: Elena Ufimtseva <elena.ufimtseva@xxxxxxxxxx>

In preperation for patch "iommu: add rmrr Xen command line option for
extra rmrrs" which will use it.

Signed-off-by: Elena Ufimtseva <elena.ufimtseva@xxxxxxxxxx>
---
 xen/include/xen/pci.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/xen/include/xen/pci.h b/xen/include/xen/pci.h
index 36e8cd3..d66ecab 100644
--- a/xen/include/xen/pci.h
+++ b/xen/include/xen/pci.h
@@ -33,6 +33,8 @@
 #define PCI_DEVFN2(bdf) ((bdf) & 0xff)
 #define PCI_BDF(b,d,f)  ((((b) & 0xff) << 8) | PCI_DEVFN(d,f))
 #define PCI_BDF2(b,df)  ((((b) & 0xff) << 8) | ((df) & 0xff))
+#define PCI_SBDF(s,b,d,f) ((((s) & 0xffff) << 16) | PCI_BDF(b,d,f))
+#define PCI_SEG(sbdf) (((sbdf) >> 16) & 0xffff)
 
 struct pci_dev_info {
     bool_t is_extfn;
-- 
2.1.3


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