On 05/13/2015 01:59 PM, Leon Alrae wrote: > On 13/05/15 20:58, Richard Henderson wrote: >> On 05/13/2015 12:56 PM, Maciej W. Rozycki wrote: >>> We must have a way to deal with memory access operations issued by a >>> single machine instruction crossing a page boundary already as this is >>> what MIPS16 SAVE and RESTORE instructions as well as microMIPS SWP, SDP, >>> SWM, SDM, LWP, LDP, LWM and LDM ones do. Perhaps these are worth >>> looking into and their approach copying (or reusing) here? >> >> Certainly we do. It's all in softmmu_template.h. > > I believe the problem is that MSA vector register's size is 16-bytes > (this DATA_SIZE isn't supported in softmmu_template) and MSA load/store > is supposed to be atomic.
What I meant is that the code to handle page boundary crosses is there in softmmu_template.h. If you want to copy that mechanism into the mips backend, that's where you should start. r~
