On 8 June 2014 14:53, Ian Campbell <i...@hellion.org.uk> wrote: > In v8 page tables bit 54 in the PTE is UXN in the EL0/EL1 translation regimes > and XN elsewhere. In v7 the bit is always XN. Since we only emulate EL0/EL1 we > can just treat this bit as UXN whenever we are in v8 mode. > > Also correctly extract the upper attributes from the PTE entry, the v8 version > tried to avoid extracting the CONTIG bit and ended up with the upper bits > being > off-by-one. Instead behave the same as v7 and extract (but ignore) the CONTIG > bit. > > This fixes "Bad mode in Synchronous Abort handler detected, code 0x8400000f" > seen when modprobing modules under Linux. > > Signed-off-by: Ian Campbell <i...@hellion.org.uk> > Cc: Peter Maydell <peter.mayd...@linaro.org> > Cc: Claudio Fontana <claudio.font...@huawei.com> > Cc: Rob Herring <robherri...@gmail.com>
Thanks, applied to target-arm.next. To those interested in EL2/EL3 support: what's the plan for telling the get_phys_addr() functions which translation regime they should be operating in? (since that is what indicates whether this bit is UXN or XN, as well as having various other effects). thanks -- PMM
