On Thu, Jun 04, 2020 at 01:54:13PM +0200, Joerg Roedel wrote:
> It is not only the trace-point, this would also eliminate exception
> handling in case the MSR access triggers a #GP. The "Unhandled MSR
> read/write" messages would turn into a "General Protection Fault"
> message.
But the early ones can trigger a #GP too. And there we can't handle
those #GPs.
Why would the late ones need exception handling all of a sudden? And
for the GHCB MSR, of all MSRs which the SEV-ES guest has used so far to
bootstrap?!
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
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