Re: GFP_DMA flag in xhci_segment_alloc

2017-05-05 Thread Matthias Lange
Hi, On 05/05/2017 10:39 AM, Mathias Nyman wrote: > Hi > > On 04.05.2017 22:13, Matthias Lange wrote: >> Hi, >> >> I am wondering what the reason for the GFP_DMA flag in >> xhci_segment_alloc() (drivers/usb/host/xhci-mem.c:59) is. >> >> It is causi

Re: GFP_DMA flag in xhci_segment_alloc

2017-05-05 Thread Mathias Nyman
Hi On 04.05.2017 22:13, Matthias Lange wrote: Hi, I am wondering what the reason for the GFP_DMA flag in xhci_segment_alloc() (drivers/usb/host/xhci-mem.c:59) is. It is causing me problems in a virtualization setup with enabled IOMMU (x86_64). The result is that USB is not working in the VM

GFP_DMA flag in xhci_segment_alloc

2017-05-04 Thread Matthias Lange
Hi, I am wondering what the reason for the GFP_DMA flag in xhci_segment_alloc() (drivers/usb/host/xhci-mem.c:59) is. It is causing me problems in a virtualization setup with enabled IOMMU (x86_64). The result is that USB is not working in the VM. Could someone please shed some light on this