Dear Arnd Bergmann, On Thu, 13 Nov 2014 11:10:07 +0100, Arnd Bergmann wrote:
> Seems fine to me. I was hoping to solve this with the introduction > of the CONFIG_ARCH_MULTIPLATFORM_STRICT or CONFIG_BROKEN_MULTIPLATFORM > setting that would allow us to have a compile-time setting to make it > work on UP (while possibly breaking or slowing down other machines > in a multiplatform kernel), but Russell didn't like the idea. Right. Unfortunately, I don't currently see a good way of handling such a case, other than having the C code at some point in the initialization re-create all the page tables that were set up by the assembly code. The basic problem here is that I need access to an information located in the Device Tree at a moment where the DT isn't available. So there are two options: 1/ make the DT available earlier, but it really seems impractical to manipulate the DT in the early assembly code, or 2/ make sure that the initialization done in the assembly code can be overridden later. What do you think? Best regards, Thomas -- Thomas Petazzoni, CTO, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
