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48 lines
1.4 KiB
C
48 lines
1.4 KiB
C
/*
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* PROJECT: ReactOS kernel-mode tests
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* LICENSE: GPL-2.0-or-later (https://spdx.org/licenses/GPL-2.0-or-later)
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* PURPOSE: Kernel mode tests for Save/Restore FPU state API kernel support
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* COPYRIGHT: Copyright 2022 George Bișoc <george.bisoc@reactos.org>
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*/
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#include <kmt_test.h>
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START_TEST(KeFloatPointState)
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{
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NTSTATUS Status;
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KFLOATING_SAVE FloatSave;
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KIRQL Irql;
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/* Save the state under normal conditions */
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Status = KeSaveFloatingPointState(&FloatSave);
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ok_irql(PASSIVE_LEVEL);
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ok_eq_hex(Status, STATUS_SUCCESS);
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/* Restore the FPU state back */
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KeRestoreFloatingPointState(&FloatSave);
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/* Try to raise the IRQL to APC and do some operations again */
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KeRaiseIrql(APC_LEVEL, &Irql);
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/* Save the state under APC_LEVEL interrupt */
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Status = KeSaveFloatingPointState(&FloatSave);
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ok_irql(APC_LEVEL);
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ok_eq_hex(Status, STATUS_SUCCESS);
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/* Restore the FPU state back */
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KeRestoreFloatingPointState(&FloatSave);
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/* Try to raise the IRQL to dispatch this time */
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KeLowerIrql(Irql);
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KeRaiseIrql(DISPATCH_LEVEL, &Irql);
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/* Save the state under DISPATCH_LEVEL interrupt */
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Status = KeSaveFloatingPointState(&FloatSave);
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ok_irql(DISPATCH_LEVEL);
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ok_eq_hex(Status, STATUS_SUCCESS);
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/* We're done */
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KeRestoreFloatingPointState(&FloatSave);
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KeLowerIrql(Irql);
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}
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