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ArmPlatformPkg/ArmVExpressPkg: The virtual memory must have the Secure attribute when the platform does not make the transition in Normal World. 

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12480 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
oliviermartin 2011-09-29 20:48:36 +00:00
parent 66f530edfa
commit fa16d12dcc
2 changed files with 14 additions and 6 deletions
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1
ArmPlatformPkg/ArmVExpressPkg/Library/ArmVExpressLibCTA9x4/ArmVExpressLib.inf
View File

@ -45,6 +45,7 @@
gArmPlatformTokenSpaceGuid.PcdNorFlashRemapping
[FixedPcd]
gArmTokenSpaceGuid.PcdTrustzoneSupport
gArmTokenSpaceGuid.PcdSystemMemoryBase
gArmTokenSpaceGuid.PcdSystemMemorySize

19
ArmPlatformPkg/ArmVExpressPkg/Library/ArmVExpressLibCTA9x4/CTA9x4Mem.c
View File

@ -26,6 +26,8 @@
// DDR attributes
#define DDR_ATTRIBUTES_CACHED ARM_MEMORY_REGION_ATTRIBUTE_WRITE_BACK
#define DDR_ATTRIBUTES_UNCACHED ARM_MEMORY_REGION_ATTRIBUTE_UNCACHED_UNBUFFERED
#define DDR_ATTRIBUTES_SECURE_CACHED ARM_MEMORY_REGION_ATTRIBUTE_SECURE_WRITE_BACK
#define DDR_ATTRIBUTES_SECURE_UNCACHED ARM_MEMORY_REGION_ATTRIBUTE_SECURE_UNCACHED_UNBUFFERED
/**
Return the Virtual Memory Map of your platform
@ -43,6 +45,7 @@ ArmPlatformGetVirtualMemoryMap (
)
{
ARM_MEMORY_REGION_ATTRIBUTES CacheAttributes;
BOOLEAN TrustzoneSupport;
UINTN Index = 0;
ARM_MEMORY_REGION_DESCRIPTOR *VirtualMemoryTable;
@ -53,10 +56,14 @@ ArmPlatformGetVirtualMemoryMap (
return;
}
// Check if SMC TZASC is enabled. If Trustzone not enabled then all the entries remain in Secure World.
// As this value can be changed in the Board Configuration file, the UEFI firmware needs to work for both case
TrustzoneSupport = PcdGetBool (PcdTrustzoneSupport);
if (FeaturePcdGet(PcdCacheEnable) == TRUE) {
CacheAttributes = DDR_ATTRIBUTES_CACHED;
CacheAttributes = (TrustzoneSupport ? DDR_ATTRIBUTES_CACHED : DDR_ATTRIBUTES_SECURE_CACHED);
} else {
CacheAttributes = DDR_ATTRIBUTES_UNCACHED;
CacheAttributes = (TrustzoneSupport ? DDR_ATTRIBUTES_UNCACHED : DDR_ATTRIBUTES_SECURE_UNCACHED);
}
if (FeaturePcdGet(PcdNorFlashRemapping) == FALSE) {
@ -77,13 +84,13 @@ ArmPlatformGetVirtualMemoryMap (
VirtualMemoryTable[++Index].PhysicalBase = ARM_VE_SMB_MB_ON_CHIP_PERIPH_BASE;
VirtualMemoryTable[Index].VirtualBase = ARM_VE_SMB_MB_ON_CHIP_PERIPH_BASE;
VirtualMemoryTable[Index].Length = ARM_VE_SMB_MB_ON_CHIP_PERIPH_SZ;
VirtualMemoryTable[Index].Attributes = ARM_MEMORY_REGION_ATTRIBUTE_DEVICE;
VirtualMemoryTable[Index].Attributes = (TrustzoneSupport ? ARM_MEMORY_REGION_ATTRIBUTE_DEVICE : ARM_MEMORY_REGION_ATTRIBUTE_SECURE_DEVICE);
// SMB CS0-CS1 - NOR Flash 1 & 2
VirtualMemoryTable[++Index].PhysicalBase = ARM_VE_SMB_NOR0_BASE;
VirtualMemoryTable[Index].VirtualBase = ARM_VE_SMB_NOR0_BASE;
VirtualMemoryTable[Index].Length = ARM_VE_SMB_NOR0_SZ + ARM_VE_SMB_NOR1_SZ;
VirtualMemoryTable[Index].Attributes = ARM_MEMORY_REGION_ATTRIBUTE_DEVICE;
VirtualMemoryTable[Index].Attributes = (TrustzoneSupport ? ARM_MEMORY_REGION_ATTRIBUTE_DEVICE : ARM_MEMORY_REGION_ATTRIBUTE_SECURE_DEVICE);
// SMB CS2 - SRAM
VirtualMemoryTable[++Index].PhysicalBase = ARM_VE_SMB_SRAM_BASE;
@ -95,14 +102,14 @@ ArmPlatformGetVirtualMemoryMap (
VirtualMemoryTable[++Index].PhysicalBase = ARM_VE_SMB_PERIPH_BASE;
VirtualMemoryTable[Index].VirtualBase = ARM_VE_SMB_PERIPH_BASE;
VirtualMemoryTable[Index].Length = ARM_VE_SMB_PERIPH_SZ;
VirtualMemoryTable[Index].Attributes = ARM_MEMORY_REGION_ATTRIBUTE_DEVICE;
VirtualMemoryTable[Index].Attributes = (TrustzoneSupport ? ARM_MEMORY_REGION_ATTRIBUTE_DEVICE : ARM_MEMORY_REGION_ATTRIBUTE_SECURE_DEVICE);
// If a Logic Tile is connected to The ARM Versatile Express Motherboard
if (MmioRead32(ARM_VE_SYS_PROCID1_REG) != 0) {
VirtualMemoryTable[++Index].PhysicalBase = ARM_VE_EXT_AXI_BASE;
VirtualMemoryTable[Index].VirtualBase = ARM_VE_EXT_AXI_BASE;
VirtualMemoryTable[Index].Length = ARM_VE_EXT_AXI_SZ;
VirtualMemoryTable[Index].Attributes = ARM_MEMORY_REGION_ATTRIBUTE_DEVICE;
VirtualMemoryTable[Index].Attributes = (TrustzoneSupport ? ARM_MEMORY_REGION_ATTRIBUTE_DEVICE : ARM_MEMORY_REGION_ATTRIBUTE_SECURE_DEVICE);
ASSERT((Index + 1) == (MAX_VIRTUAL_MEMORY_MAP_DESCRIPTORS + 1));
} else {