// Copyright (c) 2023 Apple Inc. All rights reserved. // // @APPLE_OSREFERENCE_LICENSE_HEADER_START@ // // This file contains Original Code and/or Modifications of Original Code // as defined in and that are subject to the Apple Public Source License // Version 2.0 (the 'License'). You may not use this file except in // compliance with the License. The rights granted to you under the License // may not be used to create, or enable the creation or redistribution of, // unlawful or unlicensed copies of an Apple operating system, or to // circumvent, violate, or enable the circumvention or violation of, any // terms of an Apple operating system software license agreement. // // Please obtain a copy of the License at // http://www.opensource.apple.com/apsl/ and read it before using this file. // // The Original Code and all software distributed under the License are // distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER // EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, // INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. // Please see the License for the specific language governing rights and // limitations under the License. // // @APPLE_OSREFERENCE_LICENSE_HEADER_END@ #pragma once #include #include #include // Define whether CPC is operating in a secure environment, // negated to fail closed (on missing `#include`). #if DEVELOPMENT || DEBUG #define CPC_INSECURE 1 #else // DEVELOPMENT || DEBUG #define CPC_INSECURE 0 #endif // DEVELOPMENT || DEBUG __enum_decl(cpc_hw_t, unsigned int, { CPC_HW_CPMU, CPC_HW_UPMU, CPC_HW_COUNT, }); /// Return whether the event encoding `event_selector` is allowed on a given `hw`. /// /// Parameters: /// - hw: The allow list to check differs by the hardware. /// - event_selector: The event encoding to be sent to the hardware. bool cpc_event_allowed(cpc_hw_t hw, uint16_t event_selector); /// Return whether CPC is operating securely. bool cpc_is_secure(void); #if CPC_INSECURE /// Change the security enforcement of CPC. /// /// Parameters: /// - enforce_security: Whether to enforce secure usage of CPC. void cpc_change_security(bool enforce_security); #endif // CPC_INSECURE