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59 lines
700 B
C
59 lines
700 B
C
/** @file
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Copyright (c) 2024, Mikhail Krichanov. All rights reserved.
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SPDX-License-Identifier: BSD-3-Clause
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**/
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#include <Library/ArmLib.h>
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#include "DxeMain.h"
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VOID
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EFIAPI
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ArmSetPan (
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VOID
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);
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VOID
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EFIAPI
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ArmClearPan (
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VOID
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);
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VOID
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EFIAPI
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InitializeMsr (
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IN OUT EFI_CONFIGURATION_TABLE *Table,
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IN UINTN NumberOfEntries
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)
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{
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if (ArmHasPan ()) {
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//
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// Enable Privileged Access Never feature.
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//
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ArmSetPan ();
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} else {
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DEBUG ((DEBUG_ERROR, "Core: Failed to initialize MSRs for Ring3.\n"));
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ASSERT (FALSE);
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}
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}
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VOID
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EFIAPI
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DisableSMAP (
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VOID
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)
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{
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ArmClearPan ();
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}
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VOID
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EFIAPI
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EnableSMAP (
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VOID
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)
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{
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ArmSetPan ();
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}
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