To allocate memory I do like that:
uint64_t _addr = 0x00;
kern_return_t err = mach_vm_allocate(mach_task_self(), &_addr, size, VM_FLAGS_ANYWHERE);
if (err != KERN_SUCCESS) {
printf("failed to allocate %s\n", mach_error_string(err));
}
But can someone please show me how to prevent that memory from being paged to the swap area? In Windows there is VirtualLock.
It should work to use mach_vm_wire()
for this. It's not clear if you were asking about doing this from kernel code (eg a kext) or from user code. If from user space, you may need root privileges to do this.
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