On 4/24/20 4:24 PM, Dave Hansen wrote:
On 4/24/20 2:03 PM, Mike Stunes wrote:
I needed to allow RDTSC(P) from userspace and in early boot in order to
get userspace started properly. Patch below.
---
SEV-ES guests will need to execute rdtsc and rdtscp from userspace and
during early boot. Move the rdtsc(p) #VC handler into common code and
extend the #VC handlers.
Do SEV-ES guests _always_ #VC on rdtsc(p)?
Only if the hypervisor is intercepting those instructions.
Thanks,
Tom
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