On 2 March 2016 at 19:19, Sergey Fedorov <serge.f...@gmail.com> wrote: > On 02.03.2016 21:04, Sergey Sorokin wrote: >> Qemu reports translation fault on 1st level instead of 0th level in case of >> AArch64 address translation if the translation table walk is disabled or >> the address is in the gap between the two regions. > > It's probably not a very clear description in the commit message. IIUC, > level 0 fault is reported in case of any fault from TTBR in AArch64 state.
Yes (though you mean "under an AArch64 translation regime"). Conversely, the only fault reported at level 0 under an AArch32 translation regime is the AddressSize fault (for bad addresses in TTBR0/1), which we don't currently implement. There's also a code path later in the function that does level = va_size == 64 ? 0 : 1; but I'm not sure it's worth rearranging that code to avoid the duplication of "what level do we report this kind of fault at?". thanks -- PMM