core: hle: kernel: KThread: X18 should be a cryptographically random number.
- This was added with firmware 11.0.0 (https://switchbrew.org/wiki/11.0.0). - X18 is OR'd by kernel with 1, to make sure it is odd.
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@ -26,6 +26,7 @@
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#include "core/hle/kernel/k_resource_limit.h"
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#include "core/hle/kernel/k_scheduler.h"
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#include "core/hle/kernel/k_scoped_scheduler_lock_and_sleep.h"
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#include "core/hle/kernel/k_system_control.h"
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#include "core/hle/kernel/k_thread.h"
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#include "core/hle/kernel/k_thread_queue.h"
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#include "core/hle/kernel/kernel.h"
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@ -50,6 +51,7 @@ static void ResetThreadContext64(Core::ARM_Interface::ThreadContext64& context,
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VAddr entry_point, u64 arg) {
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context = {};
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context.cpu_registers[0] = arg;
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context.cpu_registers[18] = Kernel::KSystemControl::GenerateRandomU64() | 1;
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context.pc = entry_point;
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context.sp = stack_top;
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// TODO(merry): Perform a hardware test to determine the below value.
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