On 15/01/16 22:47, Sinan Kaya wrote: > On 1/15/2016 12:32 PM, Marc Zyngier wrote: >>>> Do you have a link to that? Seeing it would help to ease my concerns. >>>> >>>> The QEMU driver has not been posted yet. As far as I know, it just discovers the memory >>>> resources on the platform object and creates mappings for the guest machine only. >>>> >>>> Shanker Donthineni and Vikram Sethi will post the QEMU patch later. >> Then may I suggest you both synchronize your submissions? I'd really >> like to hear from the QEMU maintainers that they are satisfied with that >> side of the story as well. > > The HIDMA QEMU driver is also based on VFIO platform driver in QEMU. It is not a new concept > or new framework. All tried and tested solutions. > > The driver below is already using this feature. HIDMA is no exception. > I have verified functionality of HIDMA linux driver with HIDMA QEMU driver already. That you have tested what you propose is the minimum you can do. > https://lxr.missinglinkelectronics.com/qemu/hw/arm/sysbus-fdt.c#L67 > https://lxr.missinglinkelectronics.com/qemu/hw/vfio/calxeda-xgmac.c#L18 > https://lxr.missinglinkelectronics.com/qemu/include/hw/vfio/vfio-calxeda-xgmac.h None of which warrants that what you're doing is the right thing. Since nobody has seen your QEMU code, I'm not going to take any bet. Thanks, M. -- Jazz is not dead. It just smells funny... -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html