diff options
| -rw-r--r-- | arch/x86/kvm/vmx/tdx.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/x86/kvm/vmx/tdx.c b/arch/x86/kvm/vmx/tdx.c index 78a2796eb0ff..ed3a6e2d6a11 100644 --- a/arch/x86/kvm/vmx/tdx.c +++ b/arch/x86/kvm/vmx/tdx.c @@ -978,6 +978,23 @@ fastpath_t tdx_vcpu_run(struct kvm_vcpu *vcpu, bool force_immediate_exit) return tdx_exit_handlers_fastpath(vcpu); } +static int complete_hypercall_exit(struct kvm_vcpu *vcpu) +{ + tdvmcall_set_return_code(vcpu, vcpu->run->hypercall.ret); + return 1; +} + +static int tdx_emulate_vmcall(struct kvm_vcpu *vcpu) +{ + kvm_rax_write(vcpu, to_tdx(vcpu)->vp_enter_args.r10); + kvm_rbx_write(vcpu, to_tdx(vcpu)->vp_enter_args.r11); + kvm_rcx_write(vcpu, to_tdx(vcpu)->vp_enter_args.r12); + kvm_rdx_write(vcpu, to_tdx(vcpu)->vp_enter_args.r13); + kvm_rsi_write(vcpu, to_tdx(vcpu)->vp_enter_args.r14); + + return __kvm_emulate_hypercall(vcpu, 0, complete_hypercall_exit); +} + static int handle_tdvmcall(struct kvm_vcpu *vcpu) { switch (tdvmcall_leaf(vcpu)) { @@ -1349,6 +1366,8 @@ int tdx_handle_exit(struct kvm_vcpu *vcpu, fastpath_t fastpath) return 0; case EXIT_REASON_TDCALL: return handle_tdvmcall(vcpu); + case EXIT_REASON_VMCALL: + return tdx_emulate_vmcall(vcpu); default: break; } |