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From: Jason Chien <jason.chien@sifive.com>
To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org
Cc: Palmer Dabbelt <palmer@dabbelt.com>,
	Alistair Francis <alistair.francis@wdc.com>,
	Weiwei Li <liwei1518@gmail.com>,
	Daniel Henrique Barboza <dbarboza@ventanamicro.com>,
	Liu Zhiwei <zhiwei_liu@linux.alibaba.com>,
	"Michael S. Tsirkin" <mst@redhat.com>,
	Marcel Apfelbaum <marcel.apfelbaum@gmail.com>,
	Jason Chien <jason.chien@sifive.com>
Subject: [PATCH 1/3] include/hw/pci: Attach BDF to Memory Attributes
Date: Sun,  2 Mar 2025 17:12:07 +0800	[thread overview]
Message-ID: <20250302091209.20063-2-jason.chien@sifive.com> (raw)
In-Reply-To: <20250302091209.20063-1-jason.chien@sifive.com>

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 --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,
-- 
2.43.2



  reply	other threads:[~2025-03-02  9:13 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-03-02  9:12 [PATCH 0/3] Enhancing Device Identification in RISC-V IOMMU Using Memory Attributes Jason Chien
2025-03-02  9:12 ` Jason Chien [this message]
2025-03-07 12:39   ` [PATCH 1/3] include/hw/pci: Attach BDF to " Daniel Henrique Barboza
2025-03-12 16:59     ` Jason Chien
2025-03-19 16:40       ` Jason Chien
2025-04-14 15:10         ` Jason Chien
2025-04-14 15:28   ` Michael S. Tsirkin
2025-04-24  7:57     ` Jason Chien
2025-03-02  9:12 ` [PATCH 2/3] hw/riscv/riscv-iommu: Obtain Device IDs from " Jason Chien
2025-03-07 12:35   ` Daniel Henrique Barboza
2025-03-02  9:12 ` [PATCH 3/3] hw/riscv/riscv_iommu: Remove the "bus" property Jason Chien
2025-03-07 12:36   ` Daniel Henrique Barboza
2025-04-04  1:43   ` Alistair Francis

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