Re: [PATCH Part2 RFC v4 31/40] KVM: X86: update page-fault trace to log the 64-bit error code

[Sean Christopherson]

On Wed, Jul 07, 2021, Brijesh Singh wrote:
> The page-fault error code is a 64-bit value, but the trace prints only

It's worth clarifying that #NPT has a 64-bit error code, and so KVM also passes
around a 64-bit PFEC.  E.g. the above statement is wrong for legacy #PF.

> the lower 32-bits. Some of the SEV-SNP RMP fault error codes are
> available in the upper 32-bits.

Can you send this separately with Cc: stable@?  And I guess tweak the changelog
to replace "SEV-SNP RMP" with a reference to e.g. PFERR_GUEST_FINAL_MASK.  KVM
already has error codes that can set the upper bits.