Re: [PATCH v2] x86/mce: set MCE_IN_KERNEL_COPYIN for all MC-Safe Copy

From: Borislav Petkov
Date: Fri Jun 02 2023 - 12:02:00 EST


On Fri, Jun 02, 2023 at 03:12:30PM +0000, Luck, Tony wrote:
> > As mentioned above, I am focus on copy_mc_XXX calling, it will
> > abort if the exception fires when accessing the source, and we
> > want to isolate the corrupted src page, maybe we could a new flag
> > to indicate this scenario, the *Final Goals* is to let core
> > do_machine_check to deal with the corrupted src page.
>
> A new flag seems like a good direction.

Before anything happens here, the fate of the now unused EX_TYPE_COPY
needs to be decided first. Then new stuff.

Thx.

--
Regards/Gruss,
Boris.

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