Messages in this thread | | | Date | Fri, 25 Mar 2022 21:45:24 -0700 | From | Dave Hansen <> | Subject | Re: x86, possible bug in __memmove() alternatives patching |
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On 3/25/22 15:07, Borislav Petkov wrote: > I know it's is probably a very rare case and Intel recommends having fast > string ops enabled, hence the question: would this be considered a bug in the > kernel that should be fixed? A potential fix could be to clear FSRM together > with ERMS depending on IA32_MISC_ENABLE.
I'd consider it a bug in the hypervisor, personally. ;)
But, we do try to make the kernel work even the face of funky hypervisors that do things that never occur on real hardware. If a nice patch to fix this up showed up, I'd definitely take a look.
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