Re: [PATCH 1/2] x86/tdx: Extract GET_INFO call from get_cc_mask()

[Andi Kleen]

sted-by's would be appreciated.
> One thing that I must bring up is that it seems that there's no way to get
> the panic message to user. I tried to convinced myself that it is qemu
> misconfiguration on my part or some race, but no: it is just too early for
> earlyprintk.
>
> We only get earlyprintk working after parse_early_options() which happens
> well after tdx_early_init().
>
> Moving panic() after earlyprintk working is not good idea as it exposes
> kernel more: by the time we already have full #VE handler.


It should be fine to move since there is no user land at this point (the 
attack requires user land)


> We can move it earlier into decompresser which has different earlyprintk
> implementation. Not sure if it worth this. What do you think?

That would make uncompressed kernels unsafe.

-Andi