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/* * Copyright (c) 2025 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@ */ #include <kern/ecc.h> #include <libkern/libkern.h> #include <machine/machine_routines.h> #include <pexpert/pexpert.h> #include <sys/sysctl.h> #include <vm/vm_protos.h> #ifdef HAS_MTE #include <arm64/mte_xnu.h> #include <sys/ubc.h> /* for kr to bsd error conversion */ #endif #if DEBUG || DEVELOPMENT /* * Sysctl to check if the platform is supposed to support error injection. */ static int dram_ecc_error_injection_capable SYSCTL_HANDLER_ARGS { #pragma unused(arg1, arg2, req) int capable = 0; /* T6041 does not support error injection. */ return SYSCTL_OUT(req, &capable, sizeof(capable)); } SYSCTL_PROC(_vm, OID_AUTO, dram_ecc_error_injection_capable, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED, 0, 0, &dram_ecc_error_injection_capable, "I", ""); #endif /* DEBUG || DEVELOPMENT */ |