On 10/10/2014, 04:54 PM, Claudio Fontana wrote: > Hello, > > On 10.10.2014 14:09, Jiri Slaby wrote: >> I am using qemu for teaching the Linux kernel at our university. I >> wrote a simple PCI device that can answer to writes/reads, generate >> interrupts and perform DMA. As I am dragging it locally over 2 years, >> I am sending it to you now. >> >> Signed-off-by: Jiri Slaby <jsl...@suse.cz> > > is this supposed to be architecture independent, or is it X86-specific?
Hi, I did not plan it to be only x86 specific. If you see any problems, I will fix them. > Also at first glance I see multiple 32bit variables used to hold addresses, > is this 32bit-only? No, the DMA addresses are on purpose 32-bit: to teach the people always set the dma mask properly in the driver. This driver copies COMBO6x devices (liberouter.org) behaviour which I used until the cards got obsoleted (hard to find PCI-X slots nowadays). I can make this configurable if you wish. > I wonder if this work could be merged / integrated with the Generic PCI host > patches that are flying around since some time... Could you point me to some? thanks, -- js suse labs
