Hi! On Thu, Apr 30, 2020 at 02:02:02PM +1000, Nicholas Piggin wrote: > Add support for the scv instruction on POWER9 and later CPUs.
Looks good to me in general :-) > For now this implements the zeroth scv vector 'scv 0', as identical > to 'sc' system calls, with the exception that lr is not preserved, and > it is 64-bit only. There may yet be changes made to this ABI, so it's > for testing only. What does it do with SF=0? I don't see how it is obviously not a security hole currently (but I didn't look too closely). Segher
