Hi Sourav, thanks for looking into this first step of passing boot arguments to the kernel and further on. Please see my replies below.
On 02/22/2017 08:02 PM, sourav punoriyar wrote: > From the logs: "Transferring control to NetBSD stage-2 loader " > Uboot transfers the control to NetBSD stage-2 loader. > > From the boot code of arm32 in HelenOS i found that stage-2 loader loads > the kernel. > And we are not utilizing r2 register for any purpose. > > > Confusions i am having: > 1> The bootargs info are given in r2 register. How do i preserve it when > stage-2 boot-loader comes into action , because till the kernel comes > into picture i will loose the info passed from uboot. > -------> i feel i need to preserve the info passed from Uboot so that i > can pass it down to the kernel and initialize boot_args via NetBSD > stage-2 loader . Yes, the best way to communicate information between the loader and the kernel is via the bootinfo structure. Just feel free to add a member which will hold the address from r2. Note that this structure needs to be modified in two places: in the loader and also in the kernel. We should probably fix this dichotomy by moving it under abi/. > 2> What is this "ns" image ? ns is the first userspace task. The name stands for "naming service". HTH, Jakub _______________________________________________ HelenOS-devel mailing list HelenOS-devel@lists.modry.cz http://lists.modry.cz/listinfo/helenos-devel
