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Last change
on this file was 85718, checked in by vboxsync, 5 years ago |
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Devices/EFI: Merge edk-stable202005 and make it build, bugref:4643
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| 1 | /** @file
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| 2 | Base Reset System Library Shutdown API implementation for bhyve.
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| 3 |
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| 4 | Copyright (C) 2020, Rebecca Cran <[email protected]>
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| 5 | Copyright (C) 2020, Red Hat, Inc.
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| 6 | Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>
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| 7 |
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| 8 | SPDX-License-Identifier: BSD-2-Clause-Patent
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| 9 | **/
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| 10 |
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| 11 | #include <Base.h> // BIT13
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| 12 |
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| 13 | #include <IndustryStandard/Bhyve.h> // BHYVE_PM_REG
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| 14 | #include <Library/BaseLib.h> // CpuDeadLoop()
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| 15 | #include <Library/IoLib.h> // IoOr16()
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| 16 | #include <Library/ResetSystemLib.h> // ResetShutdown()
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| 17 |
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| 18 | /**
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| 19 | Calling this function causes the system to enter a power state equivalent
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| 20 | to the ACPI G2/S5 or G3 states.
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| 21 |
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| 22 | System shutdown should not return, if it returns, it means the system does
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| 23 | not support shut down reset.
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| 24 | **/
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| 25 | VOID
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| 26 | EFIAPI
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| 27 | ResetShutdown (
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| 28 | VOID
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| 29 | )
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| 30 | {
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| 31 | IoBitFieldWrite16 (BHYVE_PM_REG, 10, 13, 5);
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| 32 | IoOr16 (BHYVE_PM_REG, BIT13);
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| 33 | CpuDeadLoop ();
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| 34 | }
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