Extend memory transaction attributes with process identifier to allow
per-request address translation logic to use requester_id / process_id
to identify memory mapping (e.g. enabling IOMMU w/ PASID translations).
Signed-off-by: Tomasz Jeznach <tjezn...@rivosinc.com>
---
include/exec/memattrs.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/include/exec/memattrs.h b/include/exec/memattrs.h
index d04170aa27..61c2dfac14 100644
--- a/include/exec/memattrs.h
+++ b/include/exec/memattrs.h
@@ -64,6 +64,12 @@ typedef struct MemTxAttrs {
unsigned int target_tlb_bit0 : 1;
unsigned int target_tlb_bit1 : 1;
unsigned int target_tlb_bit2 : 1;
+
+ /*
+ * PCI PASID support: Limited to 8 bits process identifier.
+ */
+ unsigned int pasid:8;
+
} MemTxAttrs;
/* Bus masters which don't specify any attributes will get this,
--
2.34.1
