Messages in this thread | | | Date | Thu, 4 Jun 2020 17:19:53 +0200 | From | Borislav Petkov <> | Subject | Re: [PATCH v3 40/75] x86/sev-es: Compile early handler code into kernel image |
| |
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
| |