Re: [PATCH] clarify how insecure CPU is

[Thomas Gleixner]

On Mon, 8 Jan 2018, Pavel Machek wrote:

> 
> First, what is going on with X86_BUG_AMD_E400 and X86_BUG_AMD_APIC_C1E
> ? They seem to refer to the same bug, perhaps comment should mention
> that? (Do we need two flags for one bug?)
> 
> Next, maybe X86_BUG_CPU_INSECURE is a bit too generic? This seems to
> address "Meltdown" problem, but not "Spectre". Should it be limited to
> PPro and newer Intel CPUs?
> 
> Should another erratum be added for "Spectre"? This is present even on
> AMD CPUs, but should not be present in 486, maybe Pentium, and some
> Atom chips?
> 
> Plus... is this reasonable interface?
> 
> bugs		: cpu_insecure

We've renamed it to meltdown already and added spectre_v1/v2 bits for the
rest of the mess.