Re: [PATCH v2 1/7] KVM: nVMX: Introduce nested_evmcs_is_used()

[Paolo Bonzini]

On 24/05/21 16:09, Vitaly Kuznetsov wrote:
> You mean we'll be using:
>
> "hv_evmcs_ptr == 0" meaning "no evmcs" (like now)
> "hv_evmcs_ptr == -1" meaing "evmcs not yet mapped" (and
> nested_evmcs_is_used() will check for both '0' and '-1')
> "hv_evmcs_ptr == anything else" - eVMCS mapped.

I was thinking of:

hv_evmcs_ptr == -1 meaning no evmcs

hv_evmcs == NULL meaning "evmcs not yet mapped" (I think)

hv_evmcs != NULL meaning "evmcs mapped".

As usual with my suggestions, I'm not sure if this makes sense :) but if 
it does, the code should be nicer.

Paolo