/** @file | |
Base Reset System Library Shutdown API implementation for bhyve. | |
Copyright (C) 2020, Rebecca Cran <rebecca@bsdio.com> | |
Copyright (C) 2020, Red Hat, Inc. | |
Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR> | |
SPDX-License-Identifier: BSD-2-Clause-Patent | |
**/ | |
#include <Base.h> // BIT13 | |
#include <IndustryStandard/Bhyve.h> // BHYVE_PM_REG | |
#include <Library/BaseLib.h> // CpuDeadLoop() | |
#include <Library/IoLib.h> // IoOr16() | |
#include <Library/ResetSystemLib.h> // ResetShutdown() | |
/** | |
Calling this function causes the system to enter a power state equivalent | |
to the ACPI G2/S5 or G3 states. | |
System shutdown should not return, if it returns, it means the system does | |
not support shut down reset. | |
**/ | |
VOID | |
EFIAPI | |
ResetShutdown ( | |
VOID | |
) | |
{ | |
IoBitFieldWrite16 (BHYVE_PM_REG, 10, 13, 5); | |
IoOr16 (BHYVE_PM_REG, BIT13); | |
CpuDeadLoop (); | |
} |