On Thu, 2 Feb 2017 18:36:59 +0100 Jan Kiszka <jan.kis...@siemens.com> wrote:
> On 2017-02-02 18:17, Ralf Ramsauer wrote: > > Hi, > > > > upstream Linux commit 3277953 (mm: do not export ioremap_page_range > > symbol for external module) unexports the ioremap_page_range symbol, > > which we need for jailhouse_ioremap(). > > > > The unexport was introduced in 4.10-rc6. To be able to load > > Jailhouse with Linux 4.10-rc6+, we either need to revert this > > commit, or use another API. > > > > Ralf > > > > https://github.com/torvalds/linux/commit/3277953de2f31dd03c6375e9a9f680ac37fc9d27 > > > > Yeah, this increases pressure to rethink the handover procedure /wrt > address spaces. The simple workaround will be a kernel patch. > Long-term, it might be better to make Jailhouse relocatable (again) > and do this in the very early boot phase. Quite a bit of work, > though... Not sure whether our case would be strong enough to get that change reverted upstream. At least looking at the discussion that led to the change and maybe talking to the author are probably not bad ideas. The comment suggest there are plenty of alternatives, did not look further but it might just be a matter of using another ioremap_. Henning > Thanks, > Jan > -- You received this message because you are subscribed to the Google Groups "Jailhouse" group. To unsubscribe from this group and stop receiving emails from it, send an email to jailhouse-dev+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
