On 3/13/22 11:29, Warner Losh wrote:
So I was assuming that the cas instructions for arm use start/end_exclsive under the covers. Is that the case?
Nope. The store exclusive guest insn is implemented with a host cmpxchg.Oh, I'd forgotten about the old arm cmpxchg64 syscall, which is still implemented with start/end_exclusive. That should get fixed...
r~
