Messages in this thread | | | Date | Tue, 23 Jun 2020 18:13:45 +0200 | From | Peter Zijlstra <> | Subject | Re: Should SEV-ES #VC use IST? (Re: [PATCH] Allow RDTSC and RDTSCP from userspace) |
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On Tue, Jun 23, 2020 at 09:03:56AM -0700, Dave Hansen wrote: > On 6/23/20 8:52 AM, Peter Zijlstra wrote: > > Isn't current #MC unconditionally fatal from kernel? But yes, I was > > sorta aware people want that changed. > > Not unconditionally. copy_to_iter_mcsafe() is a good example of one > thing we _can_ handle.
Urgh, I thought that stuff was still pending.
Anyway, the important thing is that it is fatal if we hit early NMI. Which I think still holds.
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