On Tue, Aug 02, 2022 at 03:47:24PM +0800, Xiaoyao Li wrote: > Invoke KVM_TDX_INIT in kvm_arch_pre_create_vcpu() that KVM_TDX_INIT > configures global TD state, e.g. the canonical CPUID config, and must > be executed prior to creating vCPUs. > > Use kvm_x86_arch_cpuid() to setup the CPUID settings for TDX VM and > tie x86cpu->enable_pmu with TD's attributes. > > Note, this doesn't address the fact that QEMU may change the CPUID > configuration when creating vCPUs, i.e. punts on refactoring QEMU to > provide a stable CPUID config prior to kvm_arch_init(). Acked-by: Gerd Hoffmann <kraxel@xxxxxxxxxx>