summaryrefslogtreecommitdiff
path: root/ArmPlatformPkg/Sec/Sec.c
diff options
context:
space:
mode:
Diffstat (limited to 'ArmPlatformPkg/Sec/Sec.c')
-rw-r--r--ArmPlatformPkg/Sec/Sec.c390
1 files changed, 195 insertions, 195 deletions
diff --git a/ArmPlatformPkg/Sec/Sec.c b/ArmPlatformPkg/Sec/Sec.c
index 55807ec9d9..be165442bf 100644
--- a/ArmPlatformPkg/Sec/Sec.c
+++ b/ArmPlatformPkg/Sec/Sec.c
@@ -1,195 +1,195 @@
-/** @file
-* Main file supporting the SEC Phase on ARM Platforms
-*
-* Copyright (c) 2011-2012, ARM Limited. All rights reserved.
-*
-* This program and the accompanying materials
-* are licensed and made available under the terms and conditions of the BSD License
-* which accompanies this distribution. The full text of the license may be found at
-* http://opensource.org/licenses/bsd-license.php
-*
-* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-*
-**/
-
-#include <Library/ArmTrustedMonitorLib.h>
-#include <Library/DebugAgentLib.h>
-#include <Library/PrintLib.h>
-#include <Library/BaseMemoryLib.h>
-#include <Library/SerialPortLib.h>
-#include <Library/ArmGicLib.h>
-
-#include "SecInternal.h"
-
-#define SerialPrint(txt) SerialPortWrite ((UINT8*)txt, AsciiStrLen(txt)+1);
-
-VOID
-CEntryPoint (
- IN UINTN MpId,
- IN UINTN SecBootMode
- )
-{
- CHAR8 Buffer[100];
- UINTN CharCount;
- UINTN JumpAddress;
-
- // Invalidate the data cache. Doesn't have to do the Data cache clean.
- ArmInvalidateDataCache();
-
- // Invalidate Instruction Cache
- ArmInvalidateInstructionCache();
-
- // Invalidate I & D TLBs
- ArmInvalidateInstructionAndDataTlb();
-
- // CPU specific settings
- ArmCpuSetup (MpId);
-
- // Enable Floating Point Coprocessor if supported by the platform
- if (FixedPcdGet32 (PcdVFPEnabled)) {
- ArmEnableVFP();
- }
-
- // Initialize peripherals that must be done at the early stage
- // Example: Some L2 controller, interconnect, clock, DMC, etc
- ArmPlatformSecInitialize (MpId);
-
- // Primary CPU clears out the SCU tag RAMs, secondaries wait
- if (IS_PRIMARY_CORE(MpId) && (SecBootMode == ARM_SEC_COLD_BOOT)) {
- if (ArmIsMpCore()) {
- // Signal for the initial memory is configured (event: BOOT_MEM_INIT)
- ArmCallSEV ();
- }
-
- // SEC phase needs to run library constructors by hand. This assumes we are linked against the SerialLib
- // In non SEC modules the init call is in autogenerated code.
- SerialPortInitialize ();
-
- // Start talking
- if (FixedPcdGetBool (PcdTrustzoneSupport)) {
- CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"Secure firmware (version %s built at %a on %a)\n\r",
- (CHAR16*)PcdGetPtr(PcdFirmwareVersionString), __TIME__, __DATE__);
- } else {
- CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"Boot firmware (version %s built at %a on %a)\n\r",
- (CHAR16*)PcdGetPtr(PcdFirmwareVersionString), __TIME__, __DATE__);
- }
- SerialPortWrite ((UINT8 *) Buffer, CharCount);
-
- // Initialize the Debug Agent for Source Level Debugging
- InitializeDebugAgent (DEBUG_AGENT_INIT_PREMEM_SEC, NULL, NULL);
- SaveAndSetDebugTimerInterrupt (TRUE);
-
- // Enable the GIC distributor and CPU Interface
- // - no other Interrupts are enabled, doesn't have to worry about the priority.
- // - all the cores are in secure state, use secure SGI's
- ArmGicEnableDistributor (PcdGet32(PcdGicDistributorBase));
- ArmGicEnableInterruptInterface (PcdGet32(PcdGicInterruptInterfaceBase));
- } else {
- // Enable the GIC CPU Interface
- ArmGicEnableInterruptInterface (PcdGet32(PcdGicInterruptInterfaceBase));
- }
-
- // Enable Full Access to CoProcessors
- ArmWriteCpacr (CPACR_CP_FULL_ACCESS);
-
- // Test if Trustzone is supported on this platform
- if (FixedPcdGetBool (PcdTrustzoneSupport)) {
- if (ArmIsMpCore()) {
- // Setup SMP in Non Secure world
- ArmCpuSetupSmpNonSecure (GET_CORE_ID(MpId));
- }
-
- // Either we use the Secure Stacks for Secure Monitor (in this case (Base == 0) && (Size == 0))
- // Or we use separate Secure Monitor stacks (but (Base != 0) && (Size != 0))
- ASSERT (((PcdGet32(PcdCPUCoresSecMonStackBase) == 0) && (PcdGet32(PcdCPUCoreSecMonStackSize) == 0)) ||
- ((PcdGet32(PcdCPUCoresSecMonStackBase) != 0) && (PcdGet32(PcdCPUCoreSecMonStackSize) != 0)));
-
- // Enter Monitor Mode
- enter_monitor_mode ((UINTN)TrustedWorldInitialization, MpId, SecBootMode, (VOID*)(PcdGet32(PcdCPUCoresSecMonStackBase) + (PcdGet32(PcdCPUCoreSecMonStackSize) * (GET_CORE_POS(MpId) + 1))));
- } else {
- if (IS_PRIMARY_CORE(MpId)) {
- SerialPrint ("Trust Zone Configuration is disabled\n\r");
- }
-
- // With Trustzone support the transition from Sec to Normal world is done by return_from_exception().
- // If we want to keep this function call we need to ensure the SVC's SPSR point to the same Program
- // Status Register as the the current one (CPSR).
- copy_cpsr_into_spsr ();
-
- // Call the Platform specific function to execute additional actions if required
- JumpAddress = PcdGet32 (PcdFvBaseAddress);
- ArmPlatformSecExtraAction (MpId, &JumpAddress);
-
- NonTrustedWorldTransition (MpId, JumpAddress);
- }
- ASSERT (0); // We must never return from the above function
-}
-
-VOID
-TrustedWorldInitialization (
- IN UINTN MpId,
- IN UINTN SecBootMode
- )
-{
- UINTN JumpAddress;
-
- //-------------------- Monitor Mode ---------------------
-
- // Set up Monitor World (Vector Table, etc)
- ArmSecureMonitorWorldInitialize ();
-
- // Transfer the interrupt to Non-secure World
- ArmGicSetupNonSecure (MpId, PcdGet32(PcdGicDistributorBase), PcdGet32(PcdGicInterruptInterfaceBase));
-
- // Initialize platform specific security policy
- ArmPlatformSecTrustzoneInit (MpId);
-
- // Setup the Trustzone Chipsets
- if (SecBootMode == ARM_SEC_COLD_BOOT) {
- if (IS_PRIMARY_CORE(MpId)) {
- if (ArmIsMpCore()) {
- // Signal the secondary core the Security settings is done (event: EVENT_SECURE_INIT)
- ArmCallSEV ();
- }
- } else {
- // The secondary cores need to wait until the Trustzone chipsets configuration is done
- // before switching to Non Secure World
-
- // Wait for the Primary Core to finish the initialization of the Secure World (event: EVENT_SECURE_INIT)
- ArmCallWFE ();
- }
- }
-
- // Call the Platform specific function to execute additional actions if required
- JumpAddress = PcdGet32 (PcdFvBaseAddress);
- ArmPlatformSecExtraAction (MpId, &JumpAddress);
-
- // Write to CP15 Non-secure Access Control Register
- ArmWriteNsacr (PcdGet32 (PcdArmNsacr));
-
- // CP15 Secure Configuration Register
- ArmWriteScr (PcdGet32 (PcdArmScr));
-
- NonTrustedWorldTransition (MpId, JumpAddress);
-}
-
-VOID
-NonTrustedWorldTransition (
- IN UINTN MpId,
- IN UINTN JumpAddress
- )
-{
- // If PcdArmNonSecModeTransition is defined then set this specific mode to CPSR before the transition
- // By not set, the mode for Non Secure World is SVC
- if (PcdGet32 (PcdArmNonSecModeTransition) != 0) {
- set_non_secure_mode ((ARM_PROCESSOR_MODE)PcdGet32 (PcdArmNonSecModeTransition));
- }
-
- return_from_exception (JumpAddress);
- //-------------------- Non Secure Mode ---------------------
-
- // PEI Core should always load and never return
- ASSERT (FALSE);
-}
-
+/** @file
+* Main file supporting the SEC Phase on ARM Platforms
+*
+* Copyright (c) 2011-2012, ARM Limited. All rights reserved.
+*
+* This program and the accompanying materials
+* are licensed and made available under the terms and conditions of the BSD License
+* which accompanies this distribution. The full text of the license may be found at
+* http://opensource.org/licenses/bsd-license.php
+*
+* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+*
+**/
+
+#include <Library/ArmTrustedMonitorLib.h>
+#include <Library/DebugAgentLib.h>
+#include <Library/PrintLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/SerialPortLib.h>
+#include <Library/ArmGicLib.h>
+
+#include "SecInternal.h"
+
+#define SerialPrint(txt) SerialPortWrite ((UINT8*)txt, AsciiStrLen(txt)+1);
+
+VOID
+CEntryPoint (
+ IN UINTN MpId,
+ IN UINTN SecBootMode
+ )
+{
+ CHAR8 Buffer[100];
+ UINTN CharCount;
+ UINTN JumpAddress;
+
+ // Invalidate the data cache. Doesn't have to do the Data cache clean.
+ ArmInvalidateDataCache();
+
+ // Invalidate Instruction Cache
+ ArmInvalidateInstructionCache();
+
+ // Invalidate I & D TLBs
+ ArmInvalidateInstructionAndDataTlb();
+
+ // CPU specific settings
+ ArmCpuSetup (MpId);
+
+ // Enable Floating Point Coprocessor if supported by the platform
+ if (FixedPcdGet32 (PcdVFPEnabled)) {
+ ArmEnableVFP();
+ }
+
+ // Initialize peripherals that must be done at the early stage
+ // Example: Some L2 controller, interconnect, clock, DMC, etc
+ ArmPlatformSecInitialize (MpId);
+
+ // Primary CPU clears out the SCU tag RAMs, secondaries wait
+ if (IS_PRIMARY_CORE(MpId) && (SecBootMode == ARM_SEC_COLD_BOOT)) {
+ if (ArmIsMpCore()) {
+ // Signal for the initial memory is configured (event: BOOT_MEM_INIT)
+ ArmCallSEV ();
+ }
+
+ // SEC phase needs to run library constructors by hand. This assumes we are linked against the SerialLib
+ // In non SEC modules the init call is in autogenerated code.
+ SerialPortInitialize ();
+
+ // Start talking
+ if (FixedPcdGetBool (PcdTrustzoneSupport)) {
+ CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"Secure firmware (version %s built at %a on %a)\n\r",
+ (CHAR16*)PcdGetPtr(PcdFirmwareVersionString), __TIME__, __DATE__);
+ } else {
+ CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"Boot firmware (version %s built at %a on %a)\n\r",
+ (CHAR16*)PcdGetPtr(PcdFirmwareVersionString), __TIME__, __DATE__);
+ }
+ SerialPortWrite ((UINT8 *) Buffer, CharCount);
+
+ // Initialize the Debug Agent for Source Level Debugging
+ InitializeDebugAgent (DEBUG_AGENT_INIT_PREMEM_SEC, NULL, NULL);
+ SaveAndSetDebugTimerInterrupt (TRUE);
+
+ // Enable the GIC distributor and CPU Interface
+ // - no other Interrupts are enabled, doesn't have to worry about the priority.
+ // - all the cores are in secure state, use secure SGI's
+ ArmGicEnableDistributor (PcdGet32(PcdGicDistributorBase));
+ ArmGicEnableInterruptInterface (PcdGet32(PcdGicInterruptInterfaceBase));
+ } else {
+ // Enable the GIC CPU Interface
+ ArmGicEnableInterruptInterface (PcdGet32(PcdGicInterruptInterfaceBase));
+ }
+
+ // Enable Full Access to CoProcessors
+ ArmWriteCpacr (CPACR_CP_FULL_ACCESS);
+
+ // Test if Trustzone is supported on this platform
+ if (FixedPcdGetBool (PcdTrustzoneSupport)) {
+ if (ArmIsMpCore()) {
+ // Setup SMP in Non Secure world
+ ArmCpuSetupSmpNonSecure (GET_CORE_ID(MpId));
+ }
+
+ // Either we use the Secure Stacks for Secure Monitor (in this case (Base == 0) && (Size == 0))
+ // Or we use separate Secure Monitor stacks (but (Base != 0) && (Size != 0))
+ ASSERT (((PcdGet32(PcdCPUCoresSecMonStackBase) == 0) && (PcdGet32(PcdCPUCoreSecMonStackSize) == 0)) ||
+ ((PcdGet32(PcdCPUCoresSecMonStackBase) != 0) && (PcdGet32(PcdCPUCoreSecMonStackSize) != 0)));
+
+ // Enter Monitor Mode
+ enter_monitor_mode ((UINTN)TrustedWorldInitialization, MpId, SecBootMode, (VOID*)(PcdGet32(PcdCPUCoresSecMonStackBase) + (PcdGet32(PcdCPUCoreSecMonStackSize) * (GET_CORE_POS(MpId) + 1))));
+ } else {
+ if (IS_PRIMARY_CORE(MpId)) {
+ SerialPrint ("Trust Zone Configuration is disabled\n\r");
+ }
+
+ // With Trustzone support the transition from Sec to Normal world is done by return_from_exception().
+ // If we want to keep this function call we need to ensure the SVC's SPSR point to the same Program
+ // Status Register as the the current one (CPSR).
+ copy_cpsr_into_spsr ();
+
+ // Call the Platform specific function to execute additional actions if required
+ JumpAddress = PcdGet32 (PcdFvBaseAddress);
+ ArmPlatformSecExtraAction (MpId, &JumpAddress);
+
+ NonTrustedWorldTransition (MpId, JumpAddress);
+ }
+ ASSERT (0); // We must never return from the above function
+}
+
+VOID
+TrustedWorldInitialization (
+ IN UINTN MpId,
+ IN UINTN SecBootMode
+ )
+{
+ UINTN JumpAddress;
+
+ //-------------------- Monitor Mode ---------------------
+
+ // Set up Monitor World (Vector Table, etc)
+ ArmSecureMonitorWorldInitialize ();
+
+ // Transfer the interrupt to Non-secure World
+ ArmGicSetupNonSecure (MpId, PcdGet32(PcdGicDistributorBase), PcdGet32(PcdGicInterruptInterfaceBase));
+
+ // Initialize platform specific security policy
+ ArmPlatformSecTrustzoneInit (MpId);
+
+ // Setup the Trustzone Chipsets
+ if (SecBootMode == ARM_SEC_COLD_BOOT) {
+ if (IS_PRIMARY_CORE(MpId)) {
+ if (ArmIsMpCore()) {
+ // Signal the secondary core the Security settings is done (event: EVENT_SECURE_INIT)
+ ArmCallSEV ();
+ }
+ } else {
+ // The secondary cores need to wait until the Trustzone chipsets configuration is done
+ // before switching to Non Secure World
+
+ // Wait for the Primary Core to finish the initialization of the Secure World (event: EVENT_SECURE_INIT)
+ ArmCallWFE ();
+ }
+ }
+
+ // Call the Platform specific function to execute additional actions if required
+ JumpAddress = PcdGet32 (PcdFvBaseAddress);
+ ArmPlatformSecExtraAction (MpId, &JumpAddress);
+
+ // Write to CP15 Non-secure Access Control Register
+ ArmWriteNsacr (PcdGet32 (PcdArmNsacr));
+
+ // CP15 Secure Configuration Register
+ ArmWriteScr (PcdGet32 (PcdArmScr));
+
+ NonTrustedWorldTransition (MpId, JumpAddress);
+}
+
+VOID
+NonTrustedWorldTransition (
+ IN UINTN MpId,
+ IN UINTN JumpAddress
+ )
+{
+ // If PcdArmNonSecModeTransition is defined then set this specific mode to CPSR before the transition
+ // By not set, the mode for Non Secure World is SVC
+ if (PcdGet32 (PcdArmNonSecModeTransition) != 0) {
+ set_non_secure_mode ((ARM_PROCESSOR_MODE)PcdGet32 (PcdArmNonSecModeTransition));
+ }
+
+ return_from_exception (JumpAddress);
+ //-------------------- Non Secure Mode ---------------------
+
+ // PEI Core should always load and never return
+ ASSERT (FALSE);
+}
+