/*
* Copyright (c) 2024 Apple Computer, Inc. All rights reserved.
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*
* 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
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* may not be used to create, or enable the creation or redistribution of,
* unlawful or unlicensed copies of an Apple operating system, or to
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* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
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* The Original Code and all software distributed under the License are
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#include <darwintest.h>
#include <pthread.h>
#include <machine/cpu_capabilities.h>
#include <sys/commpage.h>
#include <sys/sysctl.h>
#include <mach/vm_param.h>
#include <stdint.h>
T_GLOBAL_META(
T_META_NAMESPACE("xnu.arm"),
T_META_RADAR_COMPONENT_NAME("xnu"),
T_META_RADAR_COMPONENT_VERSION("arm"),
T_META_OWNER("jeffrey_crowell"),
T_META_RUN_CONCURRENTLY(true));
T_DECL(asb_comm_page_sanity,
"Test that asb comm page values are sane.")
{
int rv;
uint64_t max_userspace_address = MACH_VM_MAX_ADDRESS;
uint64_t target_address = COMM_PAGE_READ(uint64_t, ASB_TARGET_ADDRESS);
uint64_t sysctl_min_kernel_address = 0;
size_t min_kernel_address_size = sizeof(sysctl_min_kernel_address);
rv = sysctlbyname("vm.vm_min_kernel_address", &sysctl_min_kernel_address, &min_kernel_address_size, NULL, 0);
uint64_t kern_target_address = COMM_PAGE_READ(uint64_t, ASB_TARGET_KERN_ADDRESS);
T_QUIET; T_ASSERT_GT(target_address, max_userspace_address, "check that asb target addresses are as expected");
T_QUIET; T_ASSERT_LT(kern_target_address, sysctl_min_kernel_address, "check that asb target kernel addresses are as expected");
}