Hi, Mark On 01/20/16 at 11:54am, Mark Rutland wrote: > On Wed, Jan 20, 2016 at 02:38:56PM +0800, Dave Young wrote: > > Maybe I did not say it clearly, I prefer kexec syscall/tool to modifiy dtb > > or uefi-memmap so that we do not need any extra kernel cmdline. > > I am strongly opposed to modifying the FW-provided memroy map > information, for the reasons I expressed in other replies. > > What are your concerns with a property under /chosen? > > > For x86 we would like to drop the memmap= usage in kexec-tools but we can not > > do that for a compatibility problem about calgary iommu. So that currently > > kexec-tools supports both recreating E820 maps and passing memmap=. > > > > We should think it carefully because it will be hard to remove once we support it. > > I agree that we don't want a plethora of solutions that we have to > support forever. > > > IMO handling it in code is better than using an external interface. > > I'm not sure what you mean by this. What is the "external interface", > and which code do you beleive it is better to handle this in? I think we have covered all these in another reply. Let's continue the discussion if needed in that thread. Thanks Dave
