On Monday 21 December 2015, David Daney wrote: > On 12/21/2015 06:10 AM, Arnd Bergmann wrote: > > On Monday 21 December 2015, Gabriele Paoloni wrote: > > > or require the BIOS to work around the hardware > > quirks differently (e.g. by trapping config space access through secure > > firmware, or going through an AML method to be defined). > > Some systems don't seem to have this capability. For example, in ARMv8 > (A.K.A. arm64), I haven't been able to figure out how to trap these > accesses to EL3 for emulation. The specification is 5700 pages long > though, so perhaps I missed that bit. How about using AML then? This would be similar to what CHRP used with RTAS calls to do PCI config space access. Arnd -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html