diff options
| -rw-r--r-- | include/hw/pci/pci.h | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h index a2de236..259f9c9 100644 --- a/include/hw/pci/pci.h +++ b/include/hw/pci/pci.h @@ -819,8 +819,20 @@ static inline MemTxResult pci_dma_read(PCIDevice *dev, dma_addr_t addr, return pci_dma_rw(dev, addr, buf, len, DMA_DIRECTION_TO_DEVICE); } -static inline int pci_dma_write(PCIDevice *dev, dma_addr_t addr, - const void *buf, dma_addr_t len) +/** + * pci_dma_write: Write to address space from PCI device. + * + * Return a MemTxResult indicating whether the operation succeeded + * or failed (eg unassigned memory, device rejected the transaction, + * IOMMU fault). + * + * @dev: #PCIDevice doing the memory access + * @addr: address within the #PCIDevice address space + * @buf: buffer with the data transferred + * @len: the number of bytes to write + */ +static inline MemTxResult pci_dma_write(PCIDevice *dev, dma_addr_t addr, + const void *buf, dma_addr_t len) { return pci_dma_rw(dev, addr, (void *) buf, len, DMA_DIRECTION_FROM_DEVICE); } |