Re: [PATCH kernel v5 5/6] KVM: SEV: Enable data breakpoints in SEV-ES

[Gupta, Pankaj]

> > Enable DebugSwap for a VMSA but only do so if CPUID Fn80000021_EAX[0]
> > ("NoNestedDataBp", "Processor ignores nested data breakpoints") is
> > supported by the SOC as otherwise a malicious SEV-ES guest can set up
> > data breakpoints on the #DB IDT entry/stack and cause an infinite loop.
>
> You mean #DB => #BP here
Indeed its #DB. Was thinking something else.

Reviewed-by: Pankaj Gupta <pankaj.gupta@xxxxxxx>