From: Isaku Yamahata <isaku.yamahata@xxxxxxxxx> In this patch series, TDX supports only TDP MMU and doesn't support legacy MMU. Forcibly use TDP MMU for TDX irrelevant of kernel parameter to disable TDP MMU. Signed-off-by: Isaku Yamahata <isaku.yamahata@xxxxxxxxx> --- arch/x86/kvm/mmu/tdp_mmu.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/arch/x86/kvm/mmu/tdp_mmu.c b/arch/x86/kvm/mmu/tdp_mmu.c index f8c1824d85a5..b8850a0ceb15 100644 --- a/arch/x86/kvm/mmu/tdp_mmu.c +++ b/arch/x86/kvm/mmu/tdp_mmu.c @@ -18,8 +18,13 @@ int kvm_mmu_init_tdp_mmu(struct kvm *kvm) { struct workqueue_struct *wq; - if (!tdp_enabled || !READ_ONCE(tdp_mmu_enabled)) - return 0; + /* + * Because TDX supports only TDP MMU, forcibly use TDP MMU in the case + * of TDX. + */ + if (kvm->arch.vm_type != KVM_X86_TDX_VM && + (!tdp_enabled || !READ_ONCE(tdp_mmu_enabled))) + return false; wq = alloc_workqueue("kvm", WQ_UNBOUND|WQ_MEM_RECLAIM|WQ_CPU_INTENSIVE, 0); if (!wq) -- 2.25.1