Messages in this thread | | | From | Andy Lutomirski <> | Date | Wed, 14 Jan 2015 10:49:32 -0800 | Subject | Re: EFI mixed mode + perf = rampant triple faults |
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On Wed, Jan 14, 2015 at 10:47 AM, Borislav Petkov <bp@alien8.de> wrote: > On Wed, Jan 14, 2015 at 10:38:25AM -0800, Andy Lutomirski wrote: >> That's not a real MCE, though -- it happens synchronously instead of > > MCE can be synchronous in a sense too, as a result of executing an insn, > for example, i.e., EIPV bit set. > >> at MCE priority with all the associated messiness. Or is the idea to >> just stick that in after switching to the 32-bit mode being tested? > > Yes, the idea was to simply trigger a real exception after switching to > 32-bit while still with 64-bit IDT handlers. >
Seems like a reasonable test to me.
--Andy
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