Re: Should SEV-ES #VC use IST? (Re: [PATCH] Allow RDTSC and RDTSCP from userspace)

Borislav Petkov
2020-06-23T16:14:02Z

On Tue, Jun 23, 2020 at 04:39:26PM +0100, Andrew Cooper wrote:
> P.S. did you also hear that with Rowhammer, userspace has a nonzero
> quantity of control over generating #MC, depending on how ECC is
> configured on the platform.

Where does that #MC point to? Can it control for which address to flip
the bits for, i.e., make the #MC appear it has been generated for an
address in kernel space?

--
Regards/Gruss,
Boris.