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Peter Anvin" , Nathan Chancellor , Nick Desaulniers , Bill Wendling , Justin Stitt , , , Content-Type: text/plain; charset="UTF-8" >> >> So in the meantime what's the cleanest fix? Going straight to the arch_* >> calls from SEV seems pretty yucky in its own right. > > This is what I would do (and have done in the past): > > 14d3b376b6c3 ("x86/entry, cpumask: Provide non-instrumented variant of cpu_is_offline()") > f5c54f77b07b ("cpumask: Add a x86-specific cpumask_clear_cpu() helper") OK, let's do it this way then. >> > For the short term, we could avoid this by using arch___set_bit() > > arch_set_bit(), right? I don't think so. Currently the GHCB accessors ar using __set_bit() i.e. the non-atomic version. Am I missing something?