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OvmfPkg: Add BaseResetSystemLibBhyve 

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>
This commit is contained in:
Rebecca Cran 2020-05-03 20:18:53 -06:00 committed by mergify[bot]
parent 245bdd2cb9
commit f159102a13
3 changed files with 76 additions and 0 deletions
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2
OvmfPkg/Include/IndustryStandard/Bhyve.h
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@ -13,4 +13,6 @@
#define BHYVE_ACPI_TIMER_IO_ADDR 0x408
#define BHYVE_PM_REG 0x404
#endif // __BHYVE_H__

34
OvmfPkg/Library/ResetSystemLib/BaseResetShutdownBhyve.c Normal file
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@ -0,0 +1,34 @@
/** @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 ();
}

40
OvmfPkg/Library/ResetSystemLib/BaseResetSystemLibBhyve.inf Normal file
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@ -0,0 +1,40 @@
## @file
# Base library instance for ResetSystem library class for bhyve
#
# Copyright (C) 2020, Rebecca Cran <rebecca@bsdio.com>
# Copyright (C) 2020, Red Hat, Inc.
# Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
#
# SPDX-License-Identifier: BSD-2-Clause-Patent
#
##
[Defines]
INF_VERSION = 1.29
BASE_NAME = BaseResetSystemLibBhyve
FILE_GUID = 5c71b08f-0ade-4607-8b9d-946c2757fee8
MODULE_TYPE = BASE
VERSION_STRING = 1.0
LIBRARY_CLASS = ResetSystemLib
#
# The following information is for reference only and not required by the build
# tools.
#
# VALID_ARCHITECTURES = IA32 X64
#
[Sources]
BaseResetShutdownBhyve.c
ResetSystemLib.c
[Packages]
MdeModulePkg/MdeModulePkg.dec
MdePkg/MdePkg.dec
OvmfPkg/OvmfPkg.dec
[LibraryClasses]
BaseLib
IoLib
TimerLib