On Wed, Feb 12, 2025, Binbin Wu wrote: > On 2/12/2025 8:18 AM, Sean Christopherson wrote: > > On Tue, Feb 11, 2025, Binbin Wu wrote: > > the information is quite useless because userspace doesn't have reg_mask > > and so can't know what's in data[4], data[5], etc... And I won't be the > > least bit surprised if guests deviate from the GHCI. > > But it also confuses userspace if guests uses special protocol to pass > information other than ASCII byte stream. Yes, but only if userspace and the guest aren't in cahoots. There are use cases where the VMM and the VM are managed/owned by the same entity.
