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| author | Gerd Hoffmann <kraxel@redhat.com> | 2021-09-08 11:01:14 +0200 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2021-10-05 10:55:39 +0000 |
| commit | 1d3e89f3490f05a20df0470a21767d063587a596 (patch) | |
| tree | 8e62f886b89cde28791e276e2200bdcaa5d5dbac /OvmfPkg/Library/ResetSystemLib | |
| parent | bf02d73e74ec2825551126c780df726cc543cfb0 (diff) | |
| download | edk2-1d3e89f3490f05a20df0470a21767d063587a596.tar.gz edk2-1d3e89f3490f05a20df0470a21767d063587a596.tar.bz2 edk2-1d3e89f3490f05a20df0470a21767d063587a596.zip | |
OvmfPkg/ResetSystemLib: add driver for microvm
Uses the generic event device to reset and poweroff.
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=3599
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Jiewen Yao <Jiewen.yao@intel.com>
Diffstat (limited to 'OvmfPkg/Library/ResetSystemLib')
4 files changed, 215 insertions, 0 deletions
diff --git a/OvmfPkg/Library/ResetSystemLib/BaseResetSystemLibMicrovm.inf b/OvmfPkg/Library/ResetSystemLib/BaseResetSystemLibMicrovm.inf new file mode 100644 index 0000000000..564b1d3022 --- /dev/null +++ b/OvmfPkg/Library/ResetSystemLib/BaseResetSystemLibMicrovm.inf @@ -0,0 +1,37 @@ +## @file
+# DXE library instance for ResetSystem library class for OVMF
+#
+# 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 = ResetSystemLibMicrovm
+ FILE_GUID = 7cd630bb-f581-4d1a-97ca-9dbc900e26a4
+ MODULE_TYPE = BASE
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = ResetSystemLib|SEC PEI_CORE PEIM DXE_CORE
+
+#
+# The following information is for reference only and not required by the build
+# tools.
+#
+# VALID_ARCHITECTURES = IA32 X64
+#
+
+[Sources]
+ ResetSystemLibMicrovm.c
+
+[Packages]
+ MdeModulePkg/MdeModulePkg.dec
+ MdePkg/MdePkg.dec
+ OvmfPkg/OvmfPkg.dec
+
+[LibraryClasses]
+ BaseLib
+ DebugLib
+ IoLib
+ TimerLib
diff --git a/OvmfPkg/Library/ResetSystemLib/DxeResetSystemLibMicrovm.c b/OvmfPkg/Library/ResetSystemLib/DxeResetSystemLibMicrovm.c new file mode 100644 index 0000000000..0de8b39f54 --- /dev/null +++ b/OvmfPkg/Library/ResetSystemLib/DxeResetSystemLibMicrovm.c @@ -0,0 +1,49 @@ +/** @file
+ Reset System Library functions for OVMF
+
+ Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <Base.h> // BIT1
+#include <PiDxe.h>
+
+#include <Library/BaseLib.h> // CpuDeadLoop()
+#include <Library/DebugLib.h> // ASSERT()
+#include <Library/DxeServicesTableLib.h>
+#include <Library/IoLib.h> // IoWrite8()
+#include <Library/ResetSystemLib.h> // ResetCold()
+#include <Library/TimerLib.h> // MicroSecondDelay()
+#include <Library/UefiRuntimeLib.h> // EfiGoneVirtual()
+#include <OvmfPlatforms.h> // PIIX4_PMBA_VALUE
+
+EFI_STATUS
+EFIAPI
+DxeResetSystemLibMicrovmConstructor (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ UINTN Address = MICROVM_GED_MMIO_BASE;
+ EFI_STATUS Status;
+ EFI_GCD_MEMORY_SPACE_DESCRIPTOR Descriptor;
+
+ DEBUG ((DEBUG_INFO, "%a: start\n", __FUNCTION__));
+
+ Status = gDS->GetMemorySpaceDescriptor (Address, &Descriptor);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_INFO, "%a: GetMemorySpaceDescriptor failed\n", __FUNCTION__));
+ return RETURN_UNSUPPORTED;
+ }
+
+ Status = gDS->SetMemorySpaceAttributes (Address, SIZE_4KB,
+ Descriptor.Attributes | EFI_MEMORY_RUNTIME);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_INFO, "%a: SetMemorySpaceAttributes failed\n", __FUNCTION__));
+ return RETURN_UNSUPPORTED;
+ }
+
+ DEBUG ((DEBUG_INFO, "%a: done\n", __FUNCTION__));
+ return EFI_SUCCESS;
+}
diff --git a/OvmfPkg/Library/ResetSystemLib/DxeResetSystemLibMicrovm.inf b/OvmfPkg/Library/ResetSystemLib/DxeResetSystemLibMicrovm.inf new file mode 100644 index 0000000000..ac9c259964 --- /dev/null +++ b/OvmfPkg/Library/ResetSystemLib/DxeResetSystemLibMicrovm.inf @@ -0,0 +1,40 @@ +## @file
+# DXE library instance for ResetSystem library class for OVMF
+#
+# 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 = ResetSystemLibMicrovm
+ FILE_GUID = 3d6faf60-804a-4ca9-a36a-1a92416919d0
+ MODULE_TYPE = DXE_RUNTIME_DRIVER
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = ResetSystemLib|DXE_DRIVER DXE_RUNTIME_DRIVER SMM_CORE DXE_SMM_DRIVER UEFI_DRIVER UEFI_APPLICATION
+ CONSTRUCTOR = DxeResetSystemLibMicrovmConstructor
+
+#
+# The following information is for reference only and not required by the build
+# tools.
+#
+# VALID_ARCHITECTURES = IA32 X64
+#
+
+[Sources]
+ ResetSystemLibMicrovm.c
+ DxeResetSystemLibMicrovm.c
+
+[Packages]
+ MdeModulePkg/MdeModulePkg.dec
+ MdePkg/MdePkg.dec
+ OvmfPkg/OvmfPkg.dec
+
+[LibraryClasses]
+ BaseLib
+ DebugLib
+ DxeServicesTableLib
+ IoLib
+ TimerLib
diff --git a/OvmfPkg/Library/ResetSystemLib/ResetSystemLibMicrovm.c b/OvmfPkg/Library/ResetSystemLib/ResetSystemLibMicrovm.c new file mode 100644 index 0000000000..5c714cf06a --- /dev/null +++ b/OvmfPkg/Library/ResetSystemLib/ResetSystemLibMicrovm.c @@ -0,0 +1,89 @@ +/** @file
+ Reset System Library functions for OVMF
+
+ Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <Base.h> // BIT1
+
+#include <Library/BaseLib.h> // CpuDeadLoop()
+#include <Library/DebugLib.h> // ASSERT()
+#include <Library/IoLib.h> // IoWrite8()
+#include <Library/ResetSystemLib.h> // ResetCold()
+#include <Library/TimerLib.h> // MicroSecondDelay()
+#include <Library/UefiRuntimeLib.h> // EfiGoneVirtual()
+#include <OvmfPlatforms.h> // PIIX4_PMBA_VALUE
+
+static UINTN MicrovmGedBase (VOID)
+{
+ VOID *Address = (VOID*) MICROVM_GED_MMIO_BASE_REGS;
+
+ if (EfiGoneVirtual ()) {
+ EfiConvertPointer (0, &Address);
+ DEBUG ((DEBUG_INFO, "%a: virtual -> 0x%x\n", __FUNCTION__, Address));
+ } else {
+ DEBUG ((DEBUG_INFO, "%a: physical -> 0x%x\n", __FUNCTION__, Address));
+ }
+
+ return (UINTN) Address;
+}
+
+static VOID MicrovmReset (VOID)
+{
+ UINTN Address = MicrovmGedBase();
+
+ DEBUG ((DEBUG_INFO, "%a: microvm reset via ged\n", __FUNCTION__));
+ MmioWrite8 (Address + MICROVM_ACPI_GED_REG_RESET,
+ MICROVM_ACPI_GED_RESET_VALUE);
+ CpuDeadLoop ();
+}
+
+static VOID MicrovmShutdown (VOID)
+{
+ UINTN Address = MicrovmGedBase();
+
+ DEBUG ((DEBUG_INFO, "%a: microvm poweroff via ged\n", __FUNCTION__));
+ MmioWrite8 (Address + MICROVM_ACPI_GED_REG_SLEEP_CTL,
+ (1 << 5) /* enable bit */ |
+ (5 << 2) /* typ == S5 */);
+ CpuDeadLoop ();
+}
+
+VOID EFIAPI ResetCold (VOID)
+{
+ MicrovmReset();
+}
+
+VOID EFIAPI ResetWarm (VOID)
+{
+ MicrovmReset();
+}
+
+VOID
+EFIAPI
+ResetPlatformSpecific (
+ IN UINTN DataSize,
+ IN VOID *ResetData
+ )
+{
+ MicrovmReset();
+}
+
+VOID
+EFIAPI
+ResetSystem (
+ IN EFI_RESET_TYPE ResetType,
+ IN EFI_STATUS ResetStatus,
+ IN UINTN DataSize,
+ IN VOID *ResetData OPTIONAL
+ )
+{
+ MicrovmReset();
+}
+
+VOID EFIAPI ResetShutdown (VOID)
+{
+ MicrovmShutdown();
+}
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