This library provides interfaces related to restart and shutdown.
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4054
Cc: Bibo Mao <maobibo@loongson.cn>
Cc: Chao Li <lichao@loongson.cn>
Cc: Leif Lindholm <quic_llindhol@quicinc.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Signed-off-by: xianglai li <lixianglai@loongson.cn>
---
.../BaseResetSystemAcpiGed.c | 146 ++++++++++
.../BaseResetSystemAcpiGedLib.inf | 37 +++
.../DxeResetSystemAcpiGed.c | 257 ++++++++++++++++++
.../DxeResetSystemAcpiGedLib.inf | 41 +++
.../ResetSystemAcpiLib/ResetSystemAcpiGed.c | 128 +++++++++
.../ResetSystemAcpiLib/ResetSystemAcpiGed.h | 23 ++
6 files changed, 632 insertions(+)
create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/BaseResetSystemAcpiGed.c
create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/BaseResetSystemAcpiGedLib.inf
create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/DxeResetSystemAcpiGed.c
create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/DxeResetSystemAcpiGedLib.inf
create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/ResetSystemAcpiGed.c
create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/ResetSystemAcpiGed.h
diff --git a/Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/BaseResetSystemAcpiGed.c b/Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/BaseResetSystemAcpiGed.c
new file mode 100644
index 0000000000..0df629ffcd
--- /dev/null
+++ b/Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/BaseResetSystemAcpiGed.c
@@ -0,0 +1,146 @@
+/** @file
+ Base ResetSystem library implementation.
+
+ Copyright (c) 2022 Loongson Technology Corporation Limited. All rights reserved.<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <Base.h>
+#include <Library/DebugLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include "ResetSystemAcpiGed.h"
+#include <Library/QemuFwCfgLib.h>
+
+/**
+ Get configuration item data by the firmware configuration file name.
+
+ @param[in] Name - Name of file to look up.
+
+ @return VOID* The Pointer of Value of Firmware Configuration item read.
+**/
+VOID *
+GetFwCfgData(
+CONST CHAR8 *Name
+)
+{
+ FIRMWARE_CONFIG_ITEM FwCfgItem;
+ EFI_STATUS Status;
+ UINTN FwCfgSize;
+ VOID *Data;
+
+ Status = QemuFwCfgFindFile (Name, &FwCfgItem, &FwCfgSize);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_ERROR, "%a %d read %s error Status %d \n", __func__, __LINE__, Name, Status));
+ return NULL;
+ }
+
+ Data = AllocatePool (FwCfgSize);
+ if (Data == NULL) {
+ return NULL;
+ }
+
+ QemuFwCfgSelectItem (FwCfgItem);
+ QemuFwCfgReadBytes (FwCfgSize, Data);
+
+ return Data;
+}
+
+/**
+ Find the power manager related info from ACPI table
+
+ @retval RETURN_SUCCESS Successfully find out all the required information.
+ @retval RETURN_NOT_FOUND Failed to find the required info.
+**/
+STATIC EFI_STATUS
+GetPowerManagerByParseAcpiInfo (VOID)
+{
+ EFI_ACPI_5_0_FIXED_ACPI_DESCRIPTION_TABLE *Fadt = NULL;
+ EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER *Rsdp = NULL;
+ EFI_ACPI_DESCRIPTION_HEADER *Xsdt = NULL;
+ EFI_ACPI_DESCRIPTION_HEADER *Rsdt = NULL;
+ VOID *AcpiTables = NULL;
+ UINT32 *Entry32 = NULL;
+ UINTN Entry32Num;
+ UINT32 *Signature = NULL;
+ UINTN Idx;
+
+ Rsdp = GetFwCfgData ("etc/acpi/rsdp");
+ if (Rsdp == NULL) {
+ DEBUG ((DEBUG_ERROR, "%a %d read etc/acpi/rsdp error \n", __func__, __LINE__));
+ return RETURN_NOT_FOUND;
+ }
+
+ AcpiTables = GetFwCfgData ("etc/acpi/tables");
+ if (AcpiTables == NULL) {
+ DEBUG ((DEBUG_ERROR, "%a %d read etc/acpi/tables error \n", __func__, __LINE__));
+ FreePool (Rsdp);
+ return RETURN_NOT_FOUND;
+ }
+
+ Rsdt = (EFI_ACPI_DESCRIPTION_HEADER *)((UINTN)AcpiTables + Rsdp->RsdtAddress);
+ Entry32 = (UINT32 *)(Rsdt + 1);
+ Entry32Num = (Rsdt->Length - sizeof (EFI_ACPI_DESCRIPTION_HEADER)) >> 2;
+ for (Idx = 0; Idx < Entry32Num; Idx++) {
+ Signature = (UINT32 *)((UINTN)Entry32[Idx] + (UINTN)AcpiTables);
+ if (*Signature == EFI_ACPI_5_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE) {
+ Fadt = (EFI_ACPI_5_0_FIXED_ACPI_DESCRIPTION_TABLE *)Signature;
+ DEBUG ((DEBUG_INFO, "Found Fadt in Rsdt\n"));
+ goto Done;
+ }
+ }
+
+ Xsdt = (EFI_ACPI_DESCRIPTION_HEADER *)((UINTN)AcpiTables + Rsdp->XsdtAddress);
+ Entry32 = (UINT32 *)(Xsdt + 1);
+ Entry32Num = (Xsdt->Length - sizeof (EFI_ACPI_DESCRIPTION_HEADER)) >> 2;
+ for (Idx = 0; Idx < Entry32Num; Idx++) {
+ Signature = (UINT32 *)((UINTN)Entry32[Idx] + (UINTN)AcpiTables);
+ if (*Signature == EFI_ACPI_5_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE) {
+ Fadt = (EFI_ACPI_5_0_FIXED_ACPI_DESCRIPTION_TABLE *)Signature;
+ DEBUG ((DEBUG_INFO, "Found Fadt in Xsdt\n"));
+ goto Done;
+ }
+ }
+
+ FreePool (Rsdp);
+ FreePool (AcpiTables);
+ DEBUG ((DEBUG_ERROR, " Fadt Not Found\n"));
+ return RETURN_NOT_FOUND;
+
+Done:
+ mPowerManager.ResetRegAddr = Fadt->ResetReg.Address;
+ mPowerManager.ResetValue = Fadt->ResetValue;
+ mPowerManager.SleepControlRegAddr = Fadt->SleepControlReg.Address;
+ mPowerManager.SleepStatusRegAddr = Fadt->SleepStatusReg.Address;
+
+ FreePool (Rsdp);
+ FreePool (AcpiTables);
+ return RETURN_SUCCESS;
+}
+
+/**
+ The constructor function to initialize mPowerManager.
+
+ @retval EFI_SUCCESS initialize mPowerManager success.
+ @retval RETURN_NOT_FOUND Failed to initialize mPowerManager.
+**/
+EFI_STATUS
+ResetSystemLibConstructor (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_STATUS Status;
+
+ Status = GetPowerManagerByParseAcpiInfo ();
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_INFO, "%a:%d\n", __FUNCTION__, __LINE__));
+ }
+
+ ASSERT (mPowerManager.SleepControlRegAddr);
+ ASSERT (mPowerManager.SleepStatusRegAddr);
+ ASSERT (mPowerManager.ResetRegAddr);
+ return Status;
+}
diff --git a/Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/BaseResetSystemAcpiGedLib.inf b/Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/BaseResetSystemAcpiGedLib.inf
new file mode 100644
index 0000000000..120dd7dcff
--- /dev/null
+++ b/Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/BaseResetSystemAcpiGedLib.inf
@@ -0,0 +1,37 @@
+## @file
+# Base library instance for ResetSystem library class for loongarhch
+#
+# Copyright (c) 2022 Loongson Technology Corporation Limited. All rights reserved.<BR>
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+ INF_VERSION = 1.29
+ BASE_NAME = ResetSystemLib
+ FILE_GUID = 3d6faf60-804a-4ca9-a36a-1a92416919d0
+ MODULE_TYPE = BASE
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = ResetSystemLib|SEC PEI_CORE PEIM DXE_CORE
+ CONSTRUCTOR = ResetSystemLibConstructor
+
+#
+# VALID_ARCHITECTURES = LOONGARCH64
+#
+
+[Sources]
+ BaseResetSystemAcpiGed.c
+ ResetSystemAcpiGed.c
+
+[Packages]
+ MdeModulePkg/MdeModulePkg.dec
+ MdePkg/MdePkg.dec
+ OvmfPkg/OvmfPkg.dec
+
+[LibraryClasses]
+ BaseLib
+ DebugLib
+ QemuFwCfgLib
+ MemoryAllocationLib
+ IoLib
diff --git a/Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/DxeResetSystemAcpiGed.c b/Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/DxeResetSystemAcpiGed.c
new file mode 100644
index 0000000000..ef48946ae4
--- /dev/null
+++ b/Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/DxeResetSystemAcpiGed.c
@@ -0,0 +1,257 @@
+/** @file
+ Dxe ResetSystem library implementation.
+
+ Copyright (c) 2022 Loongson Technology Corporation Limited. All rights reserved.<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <Base.h>
+#include <Library/DebugLib.h>
+#include <Library/UefiRuntimeLib.h> // EfiConvertPointer()
+#include <Library/DxeServicesTableLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include "ResetSystemAcpiGed.h"
+#include <Library/UefiLib.h>
+
+/**
+ Modifies the attributes to Runtime type for a page size memory region.
+
+ @param BaseAddress Specified start address
+
+ @retval EFI_SUCCESS The attributes were set for the memory region.
+ @retval EFI_INVALID_PARAMETER Length is zero.
+ @retval EFI_UNSUPPORTED The processor does not support one or more bytes of the memory
+ resource range specified by BaseAddress and Length.
+ @retval EFI_UNSUPPORTED The bit mask of attributes is not support for the memory resource
+ range specified by BaseAddress and Length.
+ @retval EFI_ACCESS_DEFINED The attributes for the memory resource range specified by
+ BaseAddress and Length cannot be modified.
+ @retval EFI_OUT_OF_RESOURCES There are not enough system resources to modify the attributes of
+ the memory resource range.
+ @retval EFI_NOT_AVAILABLE_YET The attributes cannot be set because CPU architectural protocol is
+ not available yet.
+**/
+EFI_STATUS
+SetMemoryAttributesRunTime (
+ UINTN Address
+ )
+{
+ EFI_STATUS Status;
+ EFI_GCD_MEMORY_SPACE_DESCRIPTOR Descriptor;
+
+ Address &= ~EFI_PAGE_MASK;
+
+ Status = gDS->GetMemorySpaceDescriptor (Address, &Descriptor);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_INFO, "%a: GetMemorySpaceDescriptor failed\n", __FUNCTION__));
+ return Status;
+ }
+
+ if (Descriptor.GcdMemoryType == EfiGcdMemoryTypeNonExistent) {
+ Status = gDS->AddMemorySpace (
+ EfiGcdMemoryTypeMemoryMappedIo,
+ Address,
+ EFI_PAGE_SIZE,
+ EFI_MEMORY_UC | EFI_MEMORY_RUNTIME
+ );
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_INFO, "%a: AddMemorySpace failed\n", __FUNCTION__));
+ return Status;
+ }
+
+ Status = gDS->SetMemorySpaceAttributes (
+ Address,
+ EFI_PAGE_SIZE,
+ EFI_MEMORY_RUNTIME
+ );
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_INFO, "%a:%d SetMemorySpaceAttributes failed\n", __FUNCTION__, __LINE__));
+ return Status;
+ }
+ } else if (!(Descriptor.Attributes & EFI_MEMORY_RUNTIME)) {
+ Status = gDS->SetMemorySpaceAttributes (
+ Address,
+ EFI_PAGE_SIZE,
+ Descriptor.Attributes | EFI_MEMORY_RUNTIME
+ );
+
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_INFO, "%a:%d SetMemorySpaceAttributes failed\n", __FUNCTION__, __LINE__));
+ return Status;
+ }
+ }
+ return EFI_SUCCESS;
+}
+
+/**
+ Find the power manager related info from ACPI table
+
+ @retval RETURN_SUCCESS Successfully find out all the required information.
+ @retval RETURN_NOT_FOUND Failed to find the required info.
+**/
+STATIC EFI_STATUS
+GetPowerManagerByParseAcpiInfo (
+ VOID
+)
+{
+ EFI_ACPI_5_0_FIXED_ACPI_DESCRIPTION_TABLE *Fadt = NULL;
+ EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER *Rsdp = NULL;
+ EFI_ACPI_DESCRIPTION_HEADER *Xsdt = NULL;
+ EFI_ACPI_DESCRIPTION_HEADER *Rsdt = NULL;
+ UINT32 *Entry32 = NULL;
+ UINTN Entry32Num;
+ UINT32 *Signature = NULL;
+ UINTN Idx;
+ EFI_STATUS Status;
+
+ Status = EfiGetSystemConfigurationTable (&gEfiAcpiTableGuid, (VOID **)&Rsdp);
+ if (EFI_ERROR (Status)) {
+ Status = EfiGetSystemConfigurationTable (&gEfiAcpi10TableGuid, (VOID **)&Rsdp);
+ }
+
+ if (EFI_ERROR (Status) || (Rsdp == NULL)) {
+ DEBUG ((DEBUG_ERROR, "EFI_ERROR or Rsdp == NULL\n"));
+ return RETURN_NOT_FOUND;
+ }
+
+ Rsdt = (EFI_ACPI_DESCRIPTION_HEADER *)(UINTN)Rsdp->RsdtAddress;
+ Entry32 = (UINT32 *)(UINTN)(Rsdt + 1);
+ Entry32Num = (Rsdt->Length - sizeof (EFI_ACPI_DESCRIPTION_HEADER)) >> 2;
+ for (Idx = 0; Idx < Entry32Num; Idx++) {
+ Signature = (UINT32 *)(UINTN)Entry32[Idx];
+ if (*Signature == EFI_ACPI_5_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE) {
+ Fadt = (EFI_ACPI_5_0_FIXED_ACPI_DESCRIPTION_TABLE *)Signature;
+ DEBUG ((DEBUG_INFO, "Found Fadt in Rsdt\n"));
+ goto Done;
+ }
+ }
+
+ Xsdt = (EFI_ACPI_DESCRIPTION_HEADER *)Rsdp->XsdtAddress;
+ Entry32 = (UINT32 *)(Xsdt + 1);
+ Entry32Num = (Xsdt->Length - sizeof (EFI_ACPI_DESCRIPTION_HEADER)) >> 2;
+ for (Idx = 0; Idx < Entry32Num; Idx++) {
+ Signature = (UINT32 *)(UINTN)Entry32[Idx];
+ if (*Signature == EFI_ACPI_5_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE) {
+ Fadt = (EFI_ACPI_5_0_FIXED_ACPI_DESCRIPTION_TABLE *)Signature;
+ DEBUG ((DEBUG_INFO, "Found Fadt in Xsdt\n"));
+ goto Done;
+ }
+ }
+
+ DEBUG ((DEBUG_ERROR, " Fadt Not Found\n"));
+ return RETURN_NOT_FOUND;
+
+Done:
+ mPowerManager.ResetRegAddr = Fadt->ResetReg.Address;
+ mPowerManager.ResetValue = Fadt->ResetValue;
+ mPowerManager.SleepControlRegAddr = Fadt->SleepControlReg.Address;
+ mPowerManager.SleepStatusRegAddr = Fadt->SleepStatusReg.Address;
+ return RETURN_SUCCESS;
+}
+
+/**
+ This is a notification function registered on EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE
+ event. It converts a pointer to a new virtual address.
+
+ @param[in] Event Event whose notification function is being invoked.
+ @param[in] Context Pointer to the notification function's context
+**/
+VOID
+EFIAPI
+ResetSystemLibAddressChangeEvent (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ )
+{
+ EfiConvertPointer (0, (VOID **)&mPowerManager.SleepControlRegAddr);
+ EfiConvertPointer (0, (VOID **)&mPowerManager.SleepStatusRegAddr);
+ EfiConvertPointer (0, (VOID **)&mPowerManager.ResetRegAddr);
+}
+
+/**
+ Notification function of ACPI Table change.
+
+ This is a notification function registered on ACPI Table change event.
+ It saves the Century address stored in ACPI FADT table.
+
+ @param Event Event whose notification function is being invoked.
+ @param Context Pointer to the notification function's context.
+**/
+STATIC VOID
+AcpiNotificationEvent (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ )
+{
+ EFI_STATUS Status;
+
+ Status = GetPowerManagerByParseAcpiInfo ();
+ if (EFI_ERROR (Status)) {
+ return ;
+ }
+
+ DEBUG ((DEBUG_INFO, "%a: sleepControl %llx\n", __FUNCTION__, mPowerManager.SleepControlRegAddr));
+ ASSERT (mPowerManager.SleepControlRegAddr);
+ Status = SetMemoryAttributesRunTime (mPowerManager.SleepControlRegAddr);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_INFO, "%a:%d\n", __FUNCTION__, __LINE__));
+ return ;
+ }
+
+ DEBUG ((DEBUG_INFO, "%a: sleepStatus %llx\n", __FUNCTION__, mPowerManager.SleepStatusRegAddr));
+ ASSERT (mPowerManager.SleepStatusRegAddr);
+ Status = SetMemoryAttributesRunTime (mPowerManager.SleepStatusRegAddr);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_INFO, "%a:%d\n", __FUNCTION__, __LINE__));
+ return ;
+ }
+
+ DEBUG ((DEBUG_INFO, "%a: ResetReg %llx\n", __FUNCTION__, mPowerManager.ResetRegAddr));
+ ASSERT (mPowerManager.ResetRegAddr);
+ Status = SetMemoryAttributesRunTime (mPowerManager.ResetRegAddr);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_INFO, "%a:%d\n", __FUNCTION__, __LINE__));
+ }
+ return ;
+}
+
+/**
+ The constructor function to Register ACPI Table change event and Address Change Event.
+
+ @retval EFI_SUCCESS The constructor always returns RETURN_SUCCESS.
+**/
+EFI_STATUS
+EFIAPI
+ResetSystemLibConstructor (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_STATUS Status;
+ EFI_EVENT Event;
+ EFI_EVENT ResetSystemVirtualNotifyEvent;
+
+ Status = gBS->CreateEventEx (
+ EVT_NOTIFY_SIGNAL,
+ TPL_CALLBACK,
+ AcpiNotificationEvent,
+ NULL,
+ &gEfiAcpiTableGuid,
+ &Event
+ );
+
+ //
+ // Register SetVirtualAddressMap () notify function
+ //
+ Status = gBS->CreateEvent (
+ EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE,
+ TPL_NOTIFY,
+ ResetSystemLibAddressChangeEvent,
+ NULL,
+ &ResetSystemVirtualNotifyEvent
+ );
+ ASSERT_EFI_ERROR (Status);
+ return Status;
+}
diff --git a/Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/DxeResetSystemAcpiGedLib.inf b/Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/DxeResetSystemAcpiGedLib.inf
new file mode 100644
index 0000000000..48c7ea2dc3
--- /dev/null
+++ b/Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/DxeResetSystemAcpiGedLib.inf
@@ -0,0 +1,41 @@
+## @file
+# DXE library instance for ResetSystem library class for loongarch.
+#
+# Copyright (c) 2022 Loongson Technology Corporation Limited. All rights reserved.<BR>
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+ INF_VERSION = 1.29
+ BASE_NAME = ResetSystemLib
+ 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 = ResetSystemLibConstructor
+
+#
+# VALID_ARCHITECTURES = LOONGARCH64
+#
+
+[Sources]
+ DxeResetSystemAcpiGed.c
+ ResetSystemAcpiGed.c
+
+[Packages]
+ MdeModulePkg/MdeModulePkg.dec
+ MdePkg/MdePkg.dec
+ OvmfPkg/OvmfPkg.dec
+
+[LibraryClasses]
+ BaseLib
+ DebugLib
+ DxeServicesTableLib
+ IoLib
+ UefiLib
+
+[Guids]
+ gEfiAcpi10TableGuid ## PRODUCES ## SystemTable
+ gEfiAcpiTableGuid ## PRODUCES ## SystemTable
diff --git a/Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/ResetSystemAcpiGed.c b/Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/ResetSystemAcpiGed.c
new file mode 100644
index 0000000000..d15cc70b4b
--- /dev/null
+++ b/Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/ResetSystemAcpiGed.c
@@ -0,0 +1,128 @@
+/** @file
+ ResetSystem library implementation.
+
+ Copyright (c) 2022 Loongson Technology Corporation Limited. All rights reserved.<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <Base.h>
+#include <Uefi.h>
+#include <PiPei.h>
+#include <Library/BaseLib.h> // CpuDeadLoop()
+#include <Library/DebugLib.h>
+#include <Library/ResetSystemLib.h> // ResetCold()
+#include <Library/IoLib.h>
+#include "ResetSystemAcpiGed.h"
+
+POWER_MANAGER mPowerManager;
+
+/**
+ Calling this function causes a system-wide reset. This sets
+ all circuitry within the system to its initial state. This type of reset
+ is asynchronous to system operation and operates without regard to
+ cycle boundaries.
+
+ System reset should not return, if it returns, it means the system does
+ not support cold reset.
+**/
+STATIC VOID
+AcpiGedReset (
+ VOID
+ )
+{
+ MmioWrite8 (
+ (UINTN)mPowerManager.ResetRegAddr,
+ mPowerManager.ResetValue
+ );
+
+ CpuDeadLoop ();
+}
+
+/**
+ This function causes the system to enter a power state equivalent
+ to the ACPI S5 states.
+
+ * */
+STATIC VOID
+AcpiGedShutdown (
+ VOID
+ )
+{
+ MmioWrite8 (
+ (UINTN)mPowerManager.SleepControlRegAddr,
+ (1 << 5) /* enable bit */ |
+ (5 << 2) /* typ == S5 */
+ );
+
+ CpuDeadLoop ();
+}
+
+/**
+ This function causes a system-wide reset (cold reset), in which
+ all circuitry within the system returns to its initial state. This type of
+ reset is asynchronous to system operation and operates without regard to
+ cycle boundaries.
+
+ If this function returns, it means that the system does not support cold
+ reset.
+**/
+VOID EFIAPI
+ResetCold (
+ VOID
+ )
+{
+ AcpiGedReset ();
+}
+
+/**
+ This function causes a system-wide initialization (warm reset), in which all
+ processors are set to their initial state. Pending cycles are not corrupted.
+
+ If this function returns, it means that the system does not support warm
+ reset.
+**/
+VOID EFIAPI
+ResetWarm (
+ VOID
+ )
+{
+ AcpiGedReset ();
+}
+
+/**
+ This function causes a systemwide reset. The exact type of the reset is
+ defined by the EFI_GUID that follows the Null-terminated Unicode string passed
+ into ResetData. If the platform does not recognize the EFI_GUID in ResetData
+ the platform must pick a supported reset type to perform.The platform may
+ optionally log the parameters from any non-normal reset that occurs.
+
+ @param[in] DataSize The size, in bytes, of ResetData.
+ @param[in] ResetData The data buffer starts with a Null-terminated string,
+ followed by the EFI_GUID.
+**/
+VOID
+EFIAPI
+ResetPlatformSpecific (
+ IN UINTN DataSize,
+ IN VOID *ResetData
+ )
+{
+ AcpiGedReset ();
+}
+
+/**
+ This function causes the system to enter a power state equivalent
+ to the ACPI G2/S5 or G3 states.
+
+ If this function returns, it means that the system does not support shut down
+ reset.
+**/
+VOID EFIAPI
+ResetShutdown (
+ VOID
+ )
+{
+ AcpiGedShutdown ();
+}
diff --git a/Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/ResetSystemAcpiGed.h b/Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/ResetSystemAcpiGed.h
new file mode 100644
index 0000000000..e504e870f9
--- /dev/null
+++ b/Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/ResetSystemAcpiGed.h
@@ -0,0 +1,23 @@
+/** @file
+ ResetSystem lib head file.
+
+ Copyright (c) 2022 Loongson Technology Corporation Limited. All rights reserved.<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef RESET_SYSTEM_ACPI_GED_H_
+#define RESET_SYSTEM_ACPI_GED_H_
+
+#include <Base.h>
+
+typedef struct {
+ UINT64 SleepControlRegAddr;
+ UINT64 SleepStatusRegAddr;
+ UINT64 ResetRegAddr;
+ UINT8 ResetValue;
+} POWER_MANAGER;
+
+extern POWER_MANAGER mPowerManager;
+#endif // RESET_SYSTEM_ACPI_GED_H_
--
2.31.1
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Reviewed-by: Chao Li <lichao@loongson.cn> Thanks, Chao -------- On 11月 11 2022, at 5:12 下午, xianglai li <lixianglai@loongson.cn> wrote: > This library provides interfaces related to restart and shutdown. > > > > REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4054 > > > Cc: Bibo Mao <maobibo@loongson.cn> > Cc: Chao Li <lichao@loongson.cn> > Cc: Leif Lindholm <quic_llindhol@quicinc.com> > Cc: Liming Gao <gaoliming@byosoft.com.cn> > Cc: Michael D Kinney <michael.d.kinney@intel.com> > Signed-off-by: xianglai li <lixianglai@loongson.cn> > --- > .../BaseResetSystemAcpiGed.c | 146 ++++++++++ > .../BaseResetSystemAcpiGedLib.inf | 37 +++ > .../DxeResetSystemAcpiGed.c | 257 ++++++++++++++++++ > .../DxeResetSystemAcpiGedLib.inf | 41 +++ > .../ResetSystemAcpiLib/ResetSystemAcpiGed.c | 128 +++++++++ > .../ResetSystemAcpiLib/ResetSystemAcpiGed.h | 23 ++ > 6 files changed, 632 insertions(+) > create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/BaseResetSystemAcpiGed.c > create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/BaseResetSystemAcpiGedLib.inf > create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/DxeResetSystemAcpiGed.c > create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/DxeResetSystemAcpiGedLib.inf > create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/ResetSystemAcpiGed.c > create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/ResetSystemAcpiGed.h > > > diff --git a/Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/BaseResetSystemAcpiGed.c b/Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/BaseResetSystemAcpiGed.c > new file mode 100644 > index 0000000000..0df629ffcd > --- /dev/null > +++ b/Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/BaseResetSystemAcpiGed.c > @@ -0,0 +1,146 @@ > +/** @file > + Base ResetSystem library implementation. > + > + Copyright (c) 2022 Loongson Technology Corporation Limited. All rights reserved.<BR> > + > + SPDX-License-Identifier: BSD-2-Clause-Patent > + > +**/ > + > +#include <Base.h> > +#include <Library/DebugLib.h> > +#include <Library/BaseMemoryLib.h> > +#include <Library/MemoryAllocationLib.h> > +#include "ResetSystemAcpiGed.h" > +#include <Library/QemuFwCfgLib.h> > + > +/** > + Get configuration item data by the firmware configuration file name. > + > + @param[in] Name - Name of file to look up. > + > + @return VOID* The Pointer of Value of Firmware Configuration item read. > +**/ > +VOID * > +GetFwCfgData( > +CONST CHAR8 *Name > +) > +{ > + FIRMWARE_CONFIG_ITEM FwCfgItem; > + EFI_STATUS Status; > + UINTN FwCfgSize; > + VOID *Data; > + > + Status = QemuFwCfgFindFile (Name, &FwCfgItem, &FwCfgSize); > + if (EFI_ERROR (Status)) { > + DEBUG ((DEBUG_ERROR, "%a %d read %s error Status %d \n", __func__, __LINE__, Name, Status)); > + return NULL; > + } > + > + Data = AllocatePool (FwCfgSize); > + if (Data == NULL) { > + return NULL; > + } > + > + QemuFwCfgSelectItem (FwCfgItem); > + QemuFwCfgReadBytes (FwCfgSize, Data); > + > + return Data; > +} > + > +/** > + Find the power manager related info from ACPI table > + > + @retval RETURN_SUCCESS Successfully find out all the required information. > + @retval RETURN_NOT_FOUND Failed to find the required info. > +**/ > +STATIC EFI_STATUS > +GetPowerManagerByParseAcpiInfo (VOID) > +{ > + EFI_ACPI_5_0_FIXED_ACPI_DESCRIPTION_TABLE *Fadt = NULL; > + EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER *Rsdp = NULL; > + EFI_ACPI_DESCRIPTION_HEADER *Xsdt = NULL; > + EFI_ACPI_DESCRIPTION_HEADER *Rsdt = NULL; > + VOID *AcpiTables = NULL; > + UINT32 *Entry32 = NULL; > + UINTN Entry32Num; > + UINT32 *Signature = NULL; > + UINTN Idx; > + > + Rsdp = GetFwCfgData ("etc/acpi/rsdp"); > + if (Rsdp == NULL) { > + DEBUG ((DEBUG_ERROR, "%a %d read etc/acpi/rsdp error \n", __func__, __LINE__)); > + return RETURN_NOT_FOUND; > + } > + > + AcpiTables = GetFwCfgData ("etc/acpi/tables"); > + if (AcpiTables == NULL) { > + DEBUG ((DEBUG_ERROR, "%a %d read etc/acpi/tables error \n", __func__, __LINE__)); > + FreePool (Rsdp); > + return RETURN_NOT_FOUND; > + } > + > + Rsdt = (EFI_ACPI_DESCRIPTION_HEADER *)((UINTN)AcpiTables + Rsdp->RsdtAddress); > + Entry32 = (UINT32 *)(Rsdt + 1); > + Entry32Num = (Rsdt->Length - sizeof (EFI_ACPI_DESCRIPTION_HEADER)) >> 2; > + for (Idx = 0; Idx < Entry32Num; Idx++) { > + Signature = (UINT32 *)((UINTN)Entry32[Idx] + (UINTN)AcpiTables); > + if (*Signature == EFI_ACPI_5_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE) { > + Fadt = (EFI_ACPI_5_0_FIXED_ACPI_DESCRIPTION_TABLE *)Signature; > + DEBUG ((DEBUG_INFO, "Found Fadt in Rsdt\n")); > + goto Done; > + } > + } > + > + Xsdt = (EFI_ACPI_DESCRIPTION_HEADER *)((UINTN)AcpiTables + Rsdp->XsdtAddress); > + Entry32 = (UINT32 *)(Xsdt + 1); > + Entry32Num = (Xsdt->Length - sizeof (EFI_ACPI_DESCRIPTION_HEADER)) >> 2; > + for (Idx = 0; Idx < Entry32Num; Idx++) { > + Signature = (UINT32 *)((UINTN)Entry32[Idx] + (UINTN)AcpiTables); > + if (*Signature == EFI_ACPI_5_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE) { > + Fadt = (EFI_ACPI_5_0_FIXED_ACPI_DESCRIPTION_TABLE *)Signature; > + DEBUG ((DEBUG_INFO, "Found Fadt in Xsdt\n")); > + goto Done; > + } > + } > + > + FreePool (Rsdp); > + FreePool (AcpiTables); > + DEBUG ((DEBUG_ERROR, " Fadt Not Found\n")); > + return RETURN_NOT_FOUND; > + > +Done: > + mPowerManager.ResetRegAddr = Fadt->ResetReg.Address; > + mPowerManager.ResetValue = Fadt->ResetValue; > + mPowerManager.SleepControlRegAddr = Fadt->SleepControlReg.Address; > + mPowerManager.SleepStatusRegAddr = Fadt->SleepStatusReg.Address; > + > + FreePool (Rsdp); > + FreePool (AcpiTables); > + return RETURN_SUCCESS; > +} > + > +/** > + The constructor function to initialize mPowerManager. > + > + @retval EFI_SUCCESS initialize mPowerManager success. > + @retval RETURN_NOT_FOUND Failed to initialize mPowerManager. > +**/ > +EFI_STATUS > +ResetSystemLibConstructor ( > + IN EFI_HANDLE ImageHandle, > + IN EFI_SYSTEM_TABLE *SystemTable > + ) > +{ > + EFI_STATUS Status; > + > + Status = GetPowerManagerByParseAcpiInfo (); > + if (EFI_ERROR (Status)) { > + DEBUG ((DEBUG_INFO, "%a:%d\n", __FUNCTION__, __LINE__)); > + } > + > + ASSERT (mPowerManager.SleepControlRegAddr); > + ASSERT (mPowerManager.SleepStatusRegAddr); > + ASSERT (mPowerManager.ResetRegAddr); > + return Status; > +} > diff --git a/Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/BaseResetSystemAcpiGedLib.inf b/Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/BaseResetSystemAcpiGedLib.inf > new file mode 100644 > index 0000000000..120dd7dcff > --- /dev/null > +++ b/Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/BaseResetSystemAcpiGedLib.inf > @@ -0,0 +1,37 @@ > +## @file > +# Base library instance for ResetSystem library class for loongarhch > +# > +# Copyright (c) 2022 Loongson Technology Corporation Limited. All rights reserved.<BR> > +# > +# SPDX-License-Identifier: BSD-2-Clause-Patent > +# > +## > + > +[Defines] > + INF_VERSION = 1.29 > + BASE_NAME = ResetSystemLib > + FILE_GUID = 3d6faf60-804a-4ca9-a36a-1a92416919d0 > + MODULE_TYPE = BASE > + VERSION_STRING = 1.0 > + LIBRARY_CLASS = ResetSystemLib|SEC PEI_CORE PEIM DXE_CORE > + CONSTRUCTOR = ResetSystemLibConstructor > + > +# > +# VALID_ARCHITECTURES = LOONGARCH64 > +# > + > +[Sources] > + BaseResetSystemAcpiGed.c > + ResetSystemAcpiGed.c > + > +[Packages] > + MdeModulePkg/MdeModulePkg.dec > + MdePkg/MdePkg.dec > + OvmfPkg/OvmfPkg.dec > + > +[LibraryClasses] > + BaseLib > + DebugLib > + QemuFwCfgLib > + MemoryAllocationLib > + IoLib > diff --git a/Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/DxeResetSystemAcpiGed.c b/Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/DxeResetSystemAcpiGed.c > new file mode 100644 > index 0000000000..ef48946ae4 > --- /dev/null > +++ b/Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/DxeResetSystemAcpiGed.c > @@ -0,0 +1,257 @@ > +/** @file > + Dxe ResetSystem library implementation. > + > + Copyright (c) 2022 Loongson Technology Corporation Limited. All rights reserved.<BR> > + > + SPDX-License-Identifier: BSD-2-Clause-Patent > + > +**/ > + > +#include <Base.h> > +#include <Library/DebugLib.h> > +#include <Library/UefiRuntimeLib.h> // EfiConvertPointer() > +#include <Library/DxeServicesTableLib.h> > +#include <Library/UefiBootServicesTableLib.h> > +#include "ResetSystemAcpiGed.h" > +#include <Library/UefiLib.h> > + > +/** > + Modifies the attributes to Runtime type for a page size memory region. > + > + @param BaseAddress Specified start address > + > + @retval EFI_SUCCESS The attributes were set for the memory region. > + @retval EFI_INVALID_PARAMETER Length is zero. > + @retval EFI_UNSUPPORTED The processor does not support one or more bytes of the memory > + resource range specified by BaseAddress and Length. > + @retval EFI_UNSUPPORTED The bit mask of attributes is not support for the memory resource > + range specified by BaseAddress and Length. > + @retval EFI_ACCESS_DEFINED The attributes for the memory resource range specified by > + BaseAddress and Length cannot be modified. > + @retval EFI_OUT_OF_RESOURCES There are not enough system resources to modify the attributes of > + the memory resource range. > + @retval EFI_NOT_AVAILABLE_YET The attributes cannot be set because CPU architectural protocol is > + not available yet. > +**/ > +EFI_STATUS > +SetMemoryAttributesRunTime ( > + UINTN Address > + ) > +{ > + EFI_STATUS Status; > + EFI_GCD_MEMORY_SPACE_DESCRIPTOR Descriptor; > + > + Address &= ~EFI_PAGE_MASK; > + > + Status = gDS->GetMemorySpaceDescriptor (Address, &Descriptor); > + if (EFI_ERROR (Status)) { > + DEBUG ((DEBUG_INFO, "%a: GetMemorySpaceDescriptor failed\n", __FUNCTION__)); > + return Status; > + } > + > + if (Descriptor.GcdMemoryType == EfiGcdMemoryTypeNonExistent) { > + Status = gDS->AddMemorySpace ( > + EfiGcdMemoryTypeMemoryMappedIo, > + Address, > + EFI_PAGE_SIZE, > + EFI_MEMORY_UC | EFI_MEMORY_RUNTIME > + ); > + if (EFI_ERROR (Status)) { > + DEBUG ((DEBUG_INFO, "%a: AddMemorySpace failed\n", __FUNCTION__)); > + return Status; > + } > + > + Status = gDS->SetMemorySpaceAttributes ( > + Address, > + EFI_PAGE_SIZE, > + EFI_MEMORY_RUNTIME > + ); > + if (EFI_ERROR (Status)) { > + DEBUG ((DEBUG_INFO, "%a:%d SetMemorySpaceAttributes failed\n", __FUNCTION__, __LINE__)); > + return Status; > + } > + } else if (!(Descriptor.Attributes & EFI_MEMORY_RUNTIME)) { > + Status = gDS->SetMemorySpaceAttributes ( > + Address, > + EFI_PAGE_SIZE, > + Descriptor.Attributes | EFI_MEMORY_RUNTIME > + ); > + > + if (EFI_ERROR (Status)) { > + DEBUG ((DEBUG_INFO, "%a:%d SetMemorySpaceAttributes failed\n", __FUNCTION__, __LINE__)); > + return Status; > + } > + } > + return EFI_SUCCESS; > +} > + > +/** > + Find the power manager related info from ACPI table > + > + @retval RETURN_SUCCESS Successfully find out all the required information. > + @retval RETURN_NOT_FOUND Failed to find the required info. > +**/ > +STATIC EFI_STATUS > +GetPowerManagerByParseAcpiInfo ( > + VOID > +) > +{ > + EFI_ACPI_5_0_FIXED_ACPI_DESCRIPTION_TABLE *Fadt = NULL; > + EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER *Rsdp = NULL; > + EFI_ACPI_DESCRIPTION_HEADER *Xsdt = NULL; > + EFI_ACPI_DESCRIPTION_HEADER *Rsdt = NULL; > + UINT32 *Entry32 = NULL; > + UINTN Entry32Num; > + UINT32 *Signature = NULL; > + UINTN Idx; > + EFI_STATUS Status; > + > + Status = EfiGetSystemConfigurationTable (&gEfiAcpiTableGuid, (VOID **)&Rsdp); > + if (EFI_ERROR (Status)) { > + Status = EfiGetSystemConfigurationTable (&gEfiAcpi10TableGuid, (VOID **)&Rsdp); > + } > + > + if (EFI_ERROR (Status) || (Rsdp == NULL)) { > + DEBUG ((DEBUG_ERROR, "EFI_ERROR or Rsdp == NULL\n")); > + return RETURN_NOT_FOUND; > + } > + > + Rsdt = (EFI_ACPI_DESCRIPTION_HEADER *)(UINTN)Rsdp->RsdtAddress; > + Entry32 = (UINT32 *)(UINTN)(Rsdt + 1); > + Entry32Num = (Rsdt->Length - sizeof (EFI_ACPI_DESCRIPTION_HEADER)) >> 2; > + for (Idx = 0; Idx < Entry32Num; Idx++) { > + Signature = (UINT32 *)(UINTN)Entry32[Idx]; > + if (*Signature == EFI_ACPI_5_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE) { > + Fadt = (EFI_ACPI_5_0_FIXED_ACPI_DESCRIPTION_TABLE *)Signature; > + DEBUG ((DEBUG_INFO, "Found Fadt in Rsdt\n")); > + goto Done; > + } > + } > + > + Xsdt = (EFI_ACPI_DESCRIPTION_HEADER *)Rsdp->XsdtAddress; > + Entry32 = (UINT32 *)(Xsdt + 1); > + Entry32Num = (Xsdt->Length - sizeof (EFI_ACPI_DESCRIPTION_HEADER)) >> 2; > + for (Idx = 0; Idx < Entry32Num; Idx++) { > + Signature = (UINT32 *)(UINTN)Entry32[Idx]; > + if (*Signature == EFI_ACPI_5_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE) { > + Fadt = (EFI_ACPI_5_0_FIXED_ACPI_DESCRIPTION_TABLE *)Signature; > + DEBUG ((DEBUG_INFO, "Found Fadt in Xsdt\n")); > + goto Done; > + } > + } > + > + DEBUG ((DEBUG_ERROR, " Fadt Not Found\n")); > + return RETURN_NOT_FOUND; > + > +Done: > + mPowerManager.ResetRegAddr = Fadt->ResetReg.Address; > + mPowerManager.ResetValue = Fadt->ResetValue; > + mPowerManager.SleepControlRegAddr = Fadt->SleepControlReg.Address; > + mPowerManager.SleepStatusRegAddr = Fadt->SleepStatusReg.Address; > + return RETURN_SUCCESS; > +} > + > +/** > + This is a notification function registered on EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE > + event. It converts a pointer to a new virtual address. > + > + @param[in] Event Event whose notification function is being invoked. > + @param[in] Context Pointer to the notification function's context > +**/ > +VOID > +EFIAPI > +ResetSystemLibAddressChangeEvent ( > + IN EFI_EVENT Event, > + IN VOID *Context > + ) > +{ > + EfiConvertPointer (0, (VOID **)&mPowerManager.SleepControlRegAddr); > + EfiConvertPointer (0, (VOID **)&mPowerManager.SleepStatusRegAddr); > + EfiConvertPointer (0, (VOID **)&mPowerManager.ResetRegAddr); > +} > + > +/** > + Notification function of ACPI Table change. > + > + This is a notification function registered on ACPI Table change event. > + It saves the Century address stored in ACPI FADT table. > + > + @param Event Event whose notification function is being invoked. > + @param Context Pointer to the notification function's context. > +**/ > +STATIC VOID > +AcpiNotificationEvent ( > + IN EFI_EVENT Event, > + IN VOID *Context > + ) > +{ > + EFI_STATUS Status; > + > + Status = GetPowerManagerByParseAcpiInfo (); > + if (EFI_ERROR (Status)) { > + return ; > + } > + > + DEBUG ((DEBUG_INFO, "%a: sleepControl %llx\n", __FUNCTION__, mPowerManager.SleepControlRegAddr)); > + ASSERT (mPowerManager.SleepControlRegAddr); > + Status = SetMemoryAttributesRunTime (mPowerManager.SleepControlRegAddr); > + if (EFI_ERROR (Status)) { > + DEBUG ((DEBUG_INFO, "%a:%d\n", __FUNCTION__, __LINE__)); > + return ; > + } > + > + DEBUG ((DEBUG_INFO, "%a: sleepStatus %llx\n", __FUNCTION__, mPowerManager.SleepStatusRegAddr)); > + ASSERT (mPowerManager.SleepStatusRegAddr); > + Status = SetMemoryAttributesRunTime (mPowerManager.SleepStatusRegAddr); > + if (EFI_ERROR (Status)) { > + DEBUG ((DEBUG_INFO, "%a:%d\n", __FUNCTION__, __LINE__)); > + return ; > + } > + > + DEBUG ((DEBUG_INFO, "%a: ResetReg %llx\n", __FUNCTION__, mPowerManager.ResetRegAddr)); > + ASSERT (mPowerManager.ResetRegAddr); > + Status = SetMemoryAttributesRunTime (mPowerManager.ResetRegAddr); > + if (EFI_ERROR (Status)) { > + DEBUG ((DEBUG_INFO, "%a:%d\n", __FUNCTION__, __LINE__)); > + } > + return ; > +} > + > +/** > + The constructor function to Register ACPI Table change event and Address Change Event. > + > + @retval EFI_SUCCESS The constructor always returns RETURN_SUCCESS. > +**/ > +EFI_STATUS > +EFIAPI > +ResetSystemLibConstructor ( > + IN EFI_HANDLE ImageHandle, > + IN EFI_SYSTEM_TABLE *SystemTable > + ) > +{ > + EFI_STATUS Status; > + EFI_EVENT Event; > + EFI_EVENT ResetSystemVirtualNotifyEvent; > + > + Status = gBS->CreateEventEx ( > + EVT_NOTIFY_SIGNAL, > + TPL_CALLBACK, > + AcpiNotificationEvent, > + NULL, > + &gEfiAcpiTableGuid, > + &Event > + ); > + > + // > + // Register SetVirtualAddressMap () notify function > + // > + Status = gBS->CreateEvent ( > + EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE, > + TPL_NOTIFY, > + ResetSystemLibAddressChangeEvent, > + NULL, > + &ResetSystemVirtualNotifyEvent > + ); > + ASSERT_EFI_ERROR (Status); > + return Status; > +} > diff --git a/Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/DxeResetSystemAcpiGedLib.inf b/Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/DxeResetSystemAcpiGedLib.inf > new file mode 100644 > index 0000000000..48c7ea2dc3 > --- /dev/null > +++ b/Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/DxeResetSystemAcpiGedLib.inf > @@ -0,0 +1,41 @@ > +## @file > +# DXE library instance for ResetSystem library class for loongarch. > +# > +# Copyright (c) 2022 Loongson Technology Corporation Limited. All rights reserved.<BR> > +# > +# SPDX-License-Identifier: BSD-2-Clause-Patent > +# > +## > + > +[Defines] > + INF_VERSION = 1.29 > + BASE_NAME = ResetSystemLib > + 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 = ResetSystemLibConstructor > + > +# > +# VALID_ARCHITECTURES = LOONGARCH64 > +# > + > +[Sources] > + DxeResetSystemAcpiGed.c > + ResetSystemAcpiGed.c > + > +[Packages] > + MdeModulePkg/MdeModulePkg.dec > + MdePkg/MdePkg.dec > + OvmfPkg/OvmfPkg.dec > + > +[LibraryClasses] > + BaseLib > + DebugLib > + DxeServicesTableLib > + IoLib > + UefiLib > + > +[Guids] > + gEfiAcpi10TableGuid ## PRODUCES ## SystemTable > + gEfiAcpiTableGuid ## PRODUCES ## SystemTable > diff --git a/Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/ResetSystemAcpiGed.c b/Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/ResetSystemAcpiGed.c > new file mode 100644 > index 0000000000..d15cc70b4b > --- /dev/null > +++ b/Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/ResetSystemAcpiGed.c > @@ -0,0 +1,128 @@ > +/** @file > + ResetSystem library implementation. > + > + Copyright (c) 2022 Loongson Technology Corporation Limited. All rights reserved.<BR> > + > + SPDX-License-Identifier: BSD-2-Clause-Patent > + > +**/ > + > +#include <Base.h> > +#include <Uefi.h> > +#include <PiPei.h> > +#include <Library/BaseLib.h> // CpuDeadLoop() > +#include <Library/DebugLib.h> > +#include <Library/ResetSystemLib.h> // ResetCold() > +#include <Library/IoLib.h> > +#include "ResetSystemAcpiGed.h" > + > +POWER_MANAGER mPowerManager; > + > +/** > + Calling this function causes a system-wide reset. This sets > + all circuitry within the system to its initial state. This type of reset > + is asynchronous to system operation and operates without regard to > + cycle boundaries. > + > + System reset should not return, if it returns, it means the system does > + not support cold reset. > +**/ > +STATIC VOID > +AcpiGedReset ( > + VOID > + ) > +{ > + MmioWrite8 ( > + (UINTN)mPowerManager.ResetRegAddr, > + mPowerManager.ResetValue > + ); > + > + CpuDeadLoop (); > +} > + > +/** > + This function causes the system to enter a power state equivalent > + to the ACPI S5 states. > + > + * */ > +STATIC VOID > +AcpiGedShutdown ( > + VOID > + ) > +{ > + MmioWrite8 ( > + (UINTN)mPowerManager.SleepControlRegAddr, > + (1 << 5) /* enable bit */ | > + (5 << 2) /* typ == S5 */ > + ); > + > + CpuDeadLoop (); > +} > + > +/** > + This function causes a system-wide reset (cold reset), in which > + all circuitry within the system returns to its initial state. This type of > + reset is asynchronous to system operation and operates without regard to > + cycle boundaries. > + > + If this function returns, it means that the system does not support cold > + reset. > +**/ > +VOID EFIAPI > +ResetCold ( > + VOID > + ) > +{ > + AcpiGedReset (); > +} > + > +/** > + This function causes a system-wide initialization (warm reset), in which all > + processors are set to their initial state. Pending cycles are not corrupted. > + > + If this function returns, it means that the system does not support warm > + reset. > +**/ > +VOID EFIAPI > +ResetWarm ( > + VOID > + ) > +{ > + AcpiGedReset (); > +} > + > +/** > + This function causes a systemwide reset. The exact type of the reset is > + defined by the EFI_GUID that follows the Null-terminated Unicode string passed > + into ResetData. If the platform does not recognize the EFI_GUID in ResetData > + the platform must pick a supported reset type to perform.The platform may > + optionally log the parameters from any non-normal reset that occurs. > + > + @param[in] DataSize The size, in bytes, of ResetData. > + @param[in] ResetData The data buffer starts with a Null-terminated string, > + followed by the EFI_GUID. > +**/ > +VOID > +EFIAPI > +ResetPlatformSpecific ( > + IN UINTN DataSize, > + IN VOID *ResetData > + ) > +{ > + AcpiGedReset (); > +} > + > +/** > + This function causes the system to enter a power state equivalent > + to the ACPI G2/S5 or G3 states. > + > + If this function returns, it means that the system does not support shut down > + reset. > +**/ > +VOID EFIAPI > +ResetShutdown ( > + VOID > + ) > +{ > + AcpiGedShutdown (); > +} > diff --git a/Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/ResetSystemAcpiGed.h b/Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/ResetSystemAcpiGed.h > new file mode 100644 > index 0000000000..e504e870f9 > --- /dev/null > +++ b/Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/ResetSystemAcpiGed.h > @@ -0,0 +1,23 @@ > +/** @file > + ResetSystem lib head file. > + > + Copyright (c) 2022 Loongson Technology Corporation Limited. All rights reserved.<BR> > + > + SPDX-License-Identifier: BSD-2-Clause-Patent > + > +**/ > + > +#ifndef RESET_SYSTEM_ACPI_GED_H_ > +#define RESET_SYSTEM_ACPI_GED_H_ > + > +#include <Base.h> > + > +typedef struct { > + UINT64 SleepControlRegAddr; > + UINT64 SleepStatusRegAddr; > + UINT64 ResetRegAddr; > + UINT8 ResetValue; > +} POWER_MANAGER; > + > +extern POWER_MANAGER mPowerManager; > +#endif // RESET_SYSTEM_ACPI_GED_H_ > -- > 2.31.1 -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#96299): https://edk2.groups.io/g/devel/message/96299 Mute This Topic: https://groups.io/mt/94955180/1787277 Group Owner: devel+owner@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [importer@patchew.org] -=-=-=-=-=-=-=-=-=-=-=-
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