[edk2-devel] [PATCH 1/1] OvmfPkg: Add BaseResetSystemLibBhyve.inf
Rebecca Cran
rebecca at bsdio.com
Mon May 4 02:18:53 UTC 2020
Introduce BaseResetSystemLibBhyve.inf, to support powering off
bhyve guests.
Signed-off-by: Rebecca Cran <rebecca at bsdio.com>
Cc: Jordan Justen <jordan.l.justen at intel.com>
Cc: Laszlo Ersek <lersek at redhat.com>
Cc: Ard Biesheuvel <ard.biesheuvel at arm.com>
---
Laszlo: I couldn't find your email specifying specific changes to
make, so I hope I've caught all of them.
OvmfPkg/Include/IndustryStandard/Bhyve.h | 2 +
.../ResetSystemLib/BaseResetShutdownBhyve.c | 34 ++++++++++++++++
.../BaseResetSystemLibBhyve.inf | 40 +++++++++++++++++++
3 files changed, 76 insertions(+)
create mode 100644 OvmfPkg/Library/ResetSystemLib/BaseResetShutdownBhyve.c
create mode 100644 OvmfPkg/Library/ResetSystemLib/BaseResetSystemLibBhyve.inf
diff --git a/OvmfPkg/Include/IndustryStandard/Bhyve.h b/OvmfPkg/Include/IndustryStandard/Bhyve.h
index 02ce5587ee0f..ab8f2b0729b4 100644
--- a/OvmfPkg/Include/IndustryStandard/Bhyve.h
+++ b/OvmfPkg/Include/IndustryStandard/Bhyve.h
@@ -13,4 +13,6 @@
#define BHYVE_ACPI_TIMER_IO_ADDR 0x408
+#define BHYVE_PM_REG 0x404
+
#endif // __BHYVE_H__
diff --git a/OvmfPkg/Library/ResetSystemLib/BaseResetShutdownBhyve.c b/OvmfPkg/Library/ResetSystemLib/BaseResetShutdownBhyve.c
new file mode 100644
index 000000000000..156e5ad0d797
--- /dev/null
+++ b/OvmfPkg/Library/ResetSystemLib/BaseResetShutdownBhyve.c
@@ -0,0 +1,34 @@
+/** @file
+ Base Reset System Library Shutdown API implementation for bhyve.
+
+ Copyright (C) 2020, Rebecca Cran <rebecca at 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 <Library/BaseLib.h> // CpuDeadLoop()
+#include <Library/IoLib.h> // IoOr16()
+#include <Library/ResetSystemLib.h> // ResetShutdown()
+#include <OvmfPlatforms.h> // BHYVE_PM_REG
+
+/**
+ 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 ();
+}
diff --git a/OvmfPkg/Library/ResetSystemLib/BaseResetSystemLibBhyve.inf b/OvmfPkg/Library/ResetSystemLib/BaseResetSystemLibBhyve.inf
new file mode 100644
index 000000000000..33e4e2689e57
--- /dev/null
+++ b/OvmfPkg/Library/ResetSystemLib/BaseResetSystemLibBhyve.inf
@@ -0,0 +1,40 @@
+## @file
+# Base library instance for ResetSystem library class for bhyve
+#
+# Copyright (C) 2020, Rebecca Cran <rebecca at 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 = DXE_DRIVER
+ 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
+
--
2.25.1
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