Hi, On 1/18/20 12:27 AM, Jon Derrick wrote:
The PCI device may have a DMA requester on another bus, such as VMD subdevices needing to use the VMD endpoint. This case requires the real DMA device when mapping to IOMMU.Signed-off-by: Jon Derrick<jonathan.derr...@intel.com> --- drivers/iommu/intel-iommu.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index 0c8d81f..01a1b0f 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -782,6 +782,8 @@ static struct intel_iommu *device_to_iommu(struct device *dev, u8 *bus, u8 *devf return NULL; #endif+ pdev = pci_real_dma_dev(dev);
This isn't correct. It will result in a compiling error when bisect. Best regards, baolu _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
