> Subject: Re: [PATCH v4 09/15] Drivers: hv: Introduce hv_output_arg_exists in > hv_common.c > > On 10/2/2023 12:29 PM, Alex Ionescu wrote: > > Hi Nuno, > > > > Is it possible to simply change to always allocating the output page? > > For example, the output page could be needed in scenarios where Linux > > is not running as the root partition, since certain hypercalls that a > > guest can make will still require one (I realize that's not the case > > _today_, but I don't believe this optimization buys much). > > I agree - it would indeed simplify the code, and guests will probably make use of it > sooner or later. > > Happy to make that change if Hyper-V guest maintainers agree. > Long, Dexuan, Michael, what do you think? There is no use case as of today for guest VMs. And it allocates extra memory that are never used when running as guest VMs. I suggest keep this code unchanged as is. Thanks, Long
