diff mbox series

[1/3] include/hw/pci: Attach BDF to Memory Attributes

Message ID 20250302091209.20063-2-jason.chien@sifive.com (mailing list archive)
State New
Headers show
Series Enhancing Device Identification in RISC-V IOMMU Using Memory Attributes | expand

Commit Message

Jason Chien March 2, 2025, 9:12 a.m. UTC 
This commit adds the BDF to the memory attributes for DMA operations.

Signed-off-by: Jason Chien <jason.chien@sifive.com>
---
 include/hw/pci/pci_device.h | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/include/hw/pci/pci_device.h b/include/hw/pci/pci_device.h
index add208edfa..968f1ba3e9 100644
--- a/include/hw/pci/pci_device.h
+++ b/include/hw/pci/pci_device.h
@@ -244,6 +244,8 @@  static inline MemTxResult pci_dma_rw(PCIDevice *dev, dma_addr_t addr,
                                      void *buf, dma_addr_t len,
                                      DMADirection dir, MemTxAttrs attrs)
 {
+    attrs.unspecified = 0;
+    attrs.requester_id = pci_requester_id(dev);
     return dma_memory_rw(pci_get_address_space(dev), addr, buf, len,
                          dir, attrs);
 }
@@ -292,6 +294,8 @@  static inline MemTxResult pci_dma_write(PCIDevice *dev, dma_addr_t addr,
                                                uint##_bits##_t *val, \
                                                MemTxAttrs attrs) \
     { \
+        attrs.unspecified = 0; \
+        attrs.requester_id = pci_requester_id(dev); \
         return ld##_l##_dma(pci_get_address_space(dev), addr, val, attrs); \
     } \
     static inline MemTxResult st##_s##_pci_dma(PCIDevice *dev, \
@@ -299,6 +303,8 @@  static inline MemTxResult pci_dma_write(PCIDevice *dev, dma_addr_t addr,
                                                uint##_bits##_t val, \
                                                MemTxAttrs attrs) \
     { \
+        attrs.unspecified = 0; \
+        attrs.requester_id = pci_requester_id(dev); \
         return st##_s##_dma(pci_get_address_space(dev), addr, val, attrs); \
     }
 
@@ -327,8 +333,8 @@  PCI_DMA_DEFINE_LDST(q_be, q_be, 64);
 static inline void *pci_dma_map(PCIDevice *dev, dma_addr_t addr,
                                 dma_addr_t *plen, DMADirection dir)
 {
-    return dma_memory_map(pci_get_address_space(dev), addr, plen, dir,
-                          MEMTXATTRS_UNSPECIFIED);
+    MemTxAttrs attrs = {.requester_id = pci_requester_id(dev)};
+    return dma_memory_map(pci_get_address_space(dev), addr, plen, dir, attrs);
 }
 
 static inline void pci_dma_unmap(PCIDevice *dev, void *buffer, dma_addr_t len,