f159102a13
Introduce BaseResetSystemLibBhyve.inf, to support powering off bhyve guests. Signed-off-by: Rebecca Cran <rebecca@bsdio.com> Cc: Jordan Justen <jordan.l.justen@intel.com> Cc: Laszlo Ersek <lersek@redhat.com> Cc: Ard Biesheuvel <ard.biesheuvel@arm.com> Message-Id: <20200504021853.76658-1-rebecca@bsdio.com> [lersek@redhat.com: MODULE_TYPE: replace DXE_DRIVER with BASE] [lersek@redhat.com: replace <OvmfPlatforms.h> with <IndustryStandard/Bhyve.h>] [lersek@redhat.com: strip ".inf" from subject line] Reviewed-by: Laszlo Ersek <lersek@redhat.com>
35 lines
951 B
C
35 lines
951 B
C
/** @file
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Base Reset System Library Shutdown API implementation for bhyve.
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Copyright (C) 2020, Rebecca Cran <rebecca@bsdio.com>
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Copyright (C) 2020, Red Hat, Inc.
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Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include <Base.h> // BIT13
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#include <IndustryStandard/Bhyve.h> // BHYVE_PM_REG
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#include <Library/BaseLib.h> // CpuDeadLoop()
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#include <Library/IoLib.h> // IoOr16()
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#include <Library/ResetSystemLib.h> // ResetShutdown()
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/**
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Calling this function causes the system to enter a power state equivalent
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to the ACPI G2/S5 or G3 states.
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System shutdown should not return, if it returns, it means the system does
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not support shut down reset.
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**/
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VOID
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EFIAPI
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ResetShutdown (
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VOID
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)
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{
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IoBitFieldWrite16 (BHYVE_PM_REG, 10, 13, 5);
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IoOr16 (BHYVE_PM_REG, BIT13);
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CpuDeadLoop ();
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}
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