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| author | andrewfish <andrewfish@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-02-02 22:35:30 +0000 |
|---|---|---|
| committer | andrewfish <andrewfish@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-02-02 22:35:30 +0000 |
| commit | 1bfda055dfbc52678655ab2ded721f9f7c0cd496 (patch) | |
| tree | fbfa3654ec28d060955ff37e9e9365ad37179013 /ArmPkg/Library/ArmTrustZoneLib/ArmTrustZone.c | |
| parent | 7373d15a98fb571bf56688676c8ba950e6f62b8d (diff) | |
| download | edk2-1bfda055dfbc52678655ab2ded721f9f7c0cd496.tar.gz edk2-1bfda055dfbc52678655ab2ded721f9f7c0cd496.tar.bz2 edk2-1bfda055dfbc52678655ab2ded721f9f7c0cd496.zip | |
Sync up ArmPkg with patch from mailing list. Changed name of BdsLib.h to BdsUnixLib.h and fixed a lot of issues with Xcode building.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11293 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'ArmPkg/Library/ArmTrustZoneLib/ArmTrustZone.c')
| -rw-r--r-- | ArmPkg/Library/ArmTrustZoneLib/ArmTrustZone.c | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/ArmPkg/Library/ArmTrustZoneLib/ArmTrustZone.c b/ArmPkg/Library/ArmTrustZoneLib/ArmTrustZone.c new file mode 100644 index 0000000000..ed9abe37f7 --- /dev/null +++ b/ArmPkg/Library/ArmTrustZoneLib/ArmTrustZone.c @@ -0,0 +1,79 @@ +/** @file
+*
+* Copyright (c) 2011, 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/BaseLib.h>
+#include <Library/IoLib.h>
+#include <Library/ArmTrustZoneLib.h>
+
+#define TZPC_DECPROT0_STATUS_REG 0x800
+#define TZPC_DECPROT0_SET_REG 0x804
+#define TZPC_DECPROT0_CLEAR_REG 0x808
+
+#define TZASC_CONFIGURATION_REG 0x000
+#define TZASC_REGIONS_REG 0x100
+#define TZASC_REGION0_LOW_ADDRESS_REG 0x100
+#define TZASC_REGION0_HIGH_ADDRESS_REG 0x104
+#define TZASC_REGION0_ATTRIBUTES 0x108
+
+/**
+ FIXME: Need documentation
+**/
+EFI_STATUS TZPCSetDecProtBits(UINTN TzpcBase, UINTN TzpcId, UINTN Bits) {
+ if (TzpcId > TZPC_DECPROT_MAX) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ MmioWrite32((UINTN)TzpcBase + TZPC_DECPROT0_SET_REG + (TzpcId * 0x0C), Bits);
+
+ return EFI_SUCCESS;
+}
+
+/**
+ FIXME: Need documentation
+**/
+EFI_STATUS TZPCClearDecProtBits(UINTN TzpcBase, UINTN TzpcId, UINTN Bits) {
+ if (TzpcId> TZPC_DECPROT_MAX) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ MmioWrite32((UINTN)TzpcBase + TZPC_DECPROT0_CLEAR_REG + (TzpcId * 0x0C), Bits);
+
+ return EFI_SUCCESS;
+}
+
+/**
+ FIXME: Need documentation
+**/
+UINT32 TZASCGetNumRegions(UINTN TzascBase) {
+ return (MmioRead32((UINTN)TzascBase + TZASC_CONFIGURATION_REG) & 0xF);
+}
+
+/**
+ FIXME: Need documentation
+**/
+EFI_STATUS TZASCSetRegion(UINTN TzascBase, UINTN RegionId, UINTN Enabled, UINTN LowAddress, UINTN HighAddress, UINTN Size, UINTN Security) {
+ UINT32* Region;
+
+ if (RegionId > TZASCGetNumRegions(TzascBase)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Region = (UINT32*)((UINTN)TzascBase + TZASC_REGIONS_REG + (RegionId * 0x10));
+
+ MmioWrite32((UINTN)(Region), LowAddress&0xFFFF8000);
+ MmioWrite32((UINTN)(Region+1), HighAddress);
+ MmioWrite32((UINTN)(Region+2), ((Security & 0xF) <<28) | ((Size & 0x3F) << 1) | (Enabled & 0x1));
+
+ return EFI_SUCCESS;
+}
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