Hi Sinan, On 03/16/2016 03:27 PM, Sinan Kaya wrote: > Hi Baptiste, > >>> I couldn't see a reset function for AMBA devices. >>> >>> Is there anyway to write reset function for it? I have no experience with >>> AMBA devices. >> To my knowledge only the PL330 DMA controller (drivers/dma/pl330.c) was >> passthrough'ed at some point, rather for development purpose than >> production purpose. This was done by Virtual Open Systems (ask Baptiste >> for more details). But I don't think this is really used. > > Are you OK with requiring reset driver for AMBA devices too? The PL330 > driver won't work until a reset driver is submitted for it. > >>> >>> Would you include a reset needed flag and just not require it for AMBA? >>> (I honestly don't like this idea) >>> >> I think the requirement also makes sense for AMBA. >> >> Maybe an option would be to add a module parameter that would allow to >> use the vfio platform/amba driver without reset module (with explicit >> opt-in from the user). Maybe this can be done later on. > > I can see this flag useful for testing purposes but it should not be used in > production. > > How about I add a module parameter which is not set by default? When set, > I don't perform the reset requirement check. Yes that's what I meant Best Regards Eric > >> >> FYI I will not have access to my mailbox until the end of the week. > > OK, no rush. > >> >> Best Regards >> >> Eric >> > > -- 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
