diff options
Diffstat (limited to 'ArmVirtPkg/Library/ArmVirtPsciResetSystemPeiLib/ArmVirtPsciResetSystemPeiLib.c')
| -rw-r--r-- | ArmVirtPkg/Library/ArmVirtPsciResetSystemPeiLib/ArmVirtPsciResetSystemPeiLib.c | 240 |
1 files changed, 0 insertions, 240 deletions
diff --git a/ArmVirtPkg/Library/ArmVirtPsciResetSystemPeiLib/ArmVirtPsciResetSystemPeiLib.c b/ArmVirtPkg/Library/ArmVirtPsciResetSystemPeiLib/ArmVirtPsciResetSystemPeiLib.c deleted file mode 100644 index dffc1fb979..0000000000 --- a/ArmVirtPkg/Library/ArmVirtPsciResetSystemPeiLib/ArmVirtPsciResetSystemPeiLib.c +++ /dev/null @@ -1,240 +0,0 @@ -/** @file
- Reset System lib using PSCI hypervisor or secure monitor calls
-
- Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
- Copyright (c) 2013, ARM Ltd. All rights reserved.<BR>
- Copyright (c) 2014-2020, Linaro Ltd. All rights reserved.<BR>
- Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>
-
- SPDX-License-Identifier: BSD-2-Clause-Patent
-
-**/
-
-#include <PiPei.h>
-
-#include <libfdt.h>
-#include <Library/ArmHvcLib.h>
-#include <Library/ArmSmcLib.h>
-#include <Library/BaseLib.h>
-#include <Library/DebugLib.h>
-#include <Library/HobLib.h>
-#include <Library/ResetSystemLib.h>
-
-#include <IndustryStandard/ArmStdSmc.h>
-
-typedef enum {
- PsciMethodUnknown,
- PsciMethodSmc,
- PsciMethodHvc,
-} PSCI_METHOD;
-
-STATIC
-PSCI_METHOD
-DiscoverPsciMethod (
- VOID
- )
-{
- VOID *DeviceTreeBase;
- INT32 Node, Prev;
- INT32 Len;
- CONST CHAR8 *Compatible;
- CONST CHAR8 *CompatibleItem;
- CONST VOID *Prop;
-
- DeviceTreeBase = (VOID *)(UINTN)PcdGet64 (PcdDeviceTreeInitialBaseAddress);
- ASSERT (fdt_check_header (DeviceTreeBase) == 0);
-
- //
- // Enumerate all FDT nodes looking for the PSCI node and capture the method
- //
- for (Prev = 0; ; Prev = Node) {
- Node = fdt_next_node (DeviceTreeBase, Prev, NULL);
- if (Node < 0) {
- break;
- }
-
- Compatible = fdt_getprop (DeviceTreeBase, Node, "compatible", &Len);
- if (Compatible == NULL) {
- continue;
- }
-
- //
- // Iterate over the NULL-separated items in the compatible string
- //
- for (CompatibleItem = Compatible; CompatibleItem < Compatible + Len;
- CompatibleItem += 1 + AsciiStrLen (CompatibleItem))
- {
- if (AsciiStrCmp (CompatibleItem, "arm,psci-0.2") != 0) {
- continue;
- }
-
- Prop = fdt_getprop (DeviceTreeBase, Node, "method", NULL);
- if (!Prop) {
- DEBUG ((
- DEBUG_ERROR,
- "%a: Missing PSCI method property\n",
- __func__
- ));
- return PsciMethodUnknown;
- }
-
- if (AsciiStrnCmp (Prop, "hvc", 3) == 0) {
- return PsciMethodHvc;
- } else if (AsciiStrnCmp (Prop, "smc", 3) == 0) {
- return PsciMethodSmc;
- } else {
- DEBUG ((
- DEBUG_ERROR,
- "%a: Unknown PSCI method \"%a\"\n",
- __func__,
- Prop
- ));
- return PsciMethodUnknown;
- }
- }
- }
-
- return PsciMethodUnknown;
-}
-
-STATIC
-VOID
-PerformPsciAction (
- IN UINTN Arg0
- )
-{
- ARM_SMC_ARGS ArmSmcArgs;
- ARM_HVC_ARGS ArmHvcArgs;
-
- ArmSmcArgs.Arg0 = Arg0;
- ArmHvcArgs.Arg0 = Arg0;
-
- switch (DiscoverPsciMethod ()) {
- case PsciMethodHvc:
- ArmCallHvc (&ArmHvcArgs);
- break;
-
- case PsciMethodSmc:
- ArmCallSmc (&ArmSmcArgs);
- break;
-
- default:
- DEBUG ((DEBUG_ERROR, "%a: no PSCI method defined\n", __func__));
- ASSERT (FALSE);
- }
-}
-
-/**
- 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
- )
-{
- // Send a PSCI 0.2 SYSTEM_RESET command
- PerformPsciAction (ARM_SMC_ID_PSCI_SYSTEM_RESET);
-}
-
-/**
- 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
- )
-{
- // Map a warm reset into a cold reset
- ResetCold ();
-}
-
-/**
- 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 shutdown reset.
-**/
-VOID
-EFIAPI
-ResetShutdown (
- VOID
- )
-{
- // Send a PSCI 0.2 SYSTEM_OFF command
- PerformPsciAction (ARM_SMC_ID_PSCI_SYSTEM_OFF);
-}
-
-/**
- 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
- )
-{
- // Map the platform specific reset as reboot
- ResetCold ();
-}
-
-/**
- The ResetSystem function resets the entire platform.
-
- @param[in] ResetType The type of reset to perform.
- @param[in] ResetStatus The status code for the reset.
- @param[in] DataSize The size, in bytes, of ResetData.
- @param[in] ResetData For a ResetType of EfiResetCold, EfiResetWarm, or EfiResetShutdown
- the data buffer starts with a Null-terminated string, optionally
- followed by additional binary data. The string is a description
- that the caller may use to further indicate the reason for the
- system reset.
-**/
-VOID
-EFIAPI
-ResetSystem (
- IN EFI_RESET_TYPE ResetType,
- IN EFI_STATUS ResetStatus,
- IN UINTN DataSize,
- IN VOID *ResetData OPTIONAL
- )
-{
- switch (ResetType) {
- case EfiResetWarm:
- ResetWarm ();
- break;
-
- case EfiResetCold:
- ResetCold ();
- break;
-
- case EfiResetShutdown:
- ResetShutdown ();
- return;
-
- case EfiResetPlatformSpecific:
- ResetPlatformSpecific (DataSize, ResetData);
- return;
-
- default:
- return;
- }
-}
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