mirror of https://github.com/acidanthera/audk.git
ArmPkg/CpuDxe: Moved memory mapping functions that are not architecture specific to 'CpuMmuCommon.c'
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Olivier Martin <olivier.martin@arm.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14482 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Olivier Martin
oliviermartin
parent
04a3cfa78a
commit
591fb3781a
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@ -150,133 +150,6 @@ PageToGcdAttributes (
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return EFI_SUCCESS;
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}
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/**
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Searches memory descriptors covered by given memory range.
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This function searches into the Gcd Memory Space for descriptors
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(from StartIndex to EndIndex) that contains the memory range
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specified by BaseAddress and Length.
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@param MemorySpaceMap Gcd Memory Space Map as array.
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@param NumberOfDescriptors Number of descriptors in map.
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@param BaseAddress BaseAddress for the requested range.
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@param Length Length for the requested range.
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@param StartIndex Start index into the Gcd Memory Space Map.
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@param EndIndex End index into the Gcd Memory Space Map.
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@retval EFI_SUCCESS Search successfully.
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@retval EFI_NOT_FOUND The requested descriptors does not exist.
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**/
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EFI_STATUS
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SearchGcdMemorySpaces (
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IN EFI_GCD_MEMORY_SPACE_DESCRIPTOR *MemorySpaceMap,
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IN UINTN NumberOfDescriptors,
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IN EFI_PHYSICAL_ADDRESS BaseAddress,
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IN UINT64 Length,
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OUT UINTN *StartIndex,
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OUT UINTN *EndIndex
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)
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{
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UINTN Index;
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*StartIndex = 0;
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*EndIndex = 0;
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for (Index = 0; Index < NumberOfDescriptors; Index++) {
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if (BaseAddress >= MemorySpaceMap[Index].BaseAddress &&
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BaseAddress < MemorySpaceMap[Index].BaseAddress + MemorySpaceMap[Index].Length) {
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*StartIndex = Index;
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}
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if (BaseAddress + Length - 1 >= MemorySpaceMap[Index].BaseAddress &&
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BaseAddress + Length - 1 < MemorySpaceMap[Index].BaseAddress + MemorySpaceMap[Index].Length) {
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*EndIndex = Index;
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return EFI_SUCCESS;
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}
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}
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return EFI_NOT_FOUND;
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}
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/**
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Sets the attributes for a specified range in Gcd Memory Space Map.
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This function sets the attributes for a specified range in
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Gcd Memory Space Map.
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@param MemorySpaceMap Gcd Memory Space Map as array
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@param NumberOfDescriptors Number of descriptors in map
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@param BaseAddress BaseAddress for the range
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@param Length Length for the range
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@param Attributes Attributes to set
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@retval EFI_SUCCESS Memory attributes set successfully
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@retval EFI_NOT_FOUND The specified range does not exist in Gcd Memory Space
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**/
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EFI_STATUS
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SetGcdMemorySpaceAttributes (
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IN EFI_GCD_MEMORY_SPACE_DESCRIPTOR *MemorySpaceMap,
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IN UINTN NumberOfDescriptors,
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IN EFI_PHYSICAL_ADDRESS BaseAddress,
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IN UINT64 Length,
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IN UINT64 Attributes
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)
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{
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EFI_STATUS Status;
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UINTN Index;
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UINTN StartIndex;
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UINTN EndIndex;
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EFI_PHYSICAL_ADDRESS RegionStart;
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UINT64 RegionLength;
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//
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// Get all memory descriptors covered by the memory range
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//
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Status = SearchGcdMemorySpaces (
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MemorySpaceMap,
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NumberOfDescriptors,
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BaseAddress,
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Length,
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&StartIndex,
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&EndIndex
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);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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//
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// Go through all related descriptors and set attributes accordingly
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//
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for (Index = StartIndex; Index <= EndIndex; Index++) {
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if (MemorySpaceMap[Index].GcdMemoryType == EfiGcdMemoryTypeNonExistent) {
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continue;
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}
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//
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// Calculate the start and end address of the overlapping range
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//
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if (BaseAddress >= MemorySpaceMap[Index].BaseAddress) {
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RegionStart = BaseAddress;
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} else {
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RegionStart = MemorySpaceMap[Index].BaseAddress;
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}
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if (BaseAddress + Length - 1 < MemorySpaceMap[Index].BaseAddress + MemorySpaceMap[Index].Length) {
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RegionLength = BaseAddress + Length - RegionStart;
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} else {
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RegionLength = MemorySpaceMap[Index].BaseAddress + MemorySpaceMap[Index].Length - RegionStart;
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}
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//
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// Set memory attributes according to MTRR attribute and the original attribute of descriptor
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//
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gDS->SetMemorySpaceAttributes (
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RegionStart,
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RegionLength,
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(MemorySpaceMap[Index].Attributes & ~EFI_MEMORY_CACHETYPE_MASK) | (MemorySpaceMap[Index].Capabilities & Attributes)
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);
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}
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return EFI_SUCCESS;
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}
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EFI_STATUS
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SyncCacheConfigPage (
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IN UINT32 SectionIndex,
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@ -824,121 +697,3 @@ SetMemoryAttributes (
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return Status;
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}
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/**
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This function modifies the attributes for the memory region specified by BaseAddress and
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Length from their current attributes to the attributes specified by Attributes.
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@param This The EFI_CPU_ARCH_PROTOCOL instance.
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@param BaseAddress The physical address that is the start address of a memory region.
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@param Length The size in bytes of the memory region.
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@param Attributes The bit mask of attributes to set for the memory region.
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@retval EFI_SUCCESS The attributes were set for the memory region.
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@retval EFI_ACCESS_DENIED The attributes for the memory resource range specified by
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BaseAddress and Length cannot be modified.
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@retval EFI_INVALID_PARAMETER Length is zero.
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@retval EFI_OUT_OF_RESOURCES There are not enough system resources to modify the attributes of
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the memory resource range.
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@retval EFI_UNSUPPORTED The processor does not support one or more bytes of the memory
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resource range specified by BaseAddress and Length.
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The bit mask of attributes is not support for the memory resource
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range specified by BaseAddress and Length.
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**/
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EFI_STATUS
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EFIAPI
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CpuSetMemoryAttributes (
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IN EFI_CPU_ARCH_PROTOCOL *This,
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IN EFI_PHYSICAL_ADDRESS BaseAddress,
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IN UINT64 Length,
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IN UINT64 Attributes
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)
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{
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DEBUG ((EFI_D_PAGE, "SetMemoryAttributes(%lx, %lx, %lx)\n", BaseAddress, Length, Attributes));
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if ( ((BaseAddress & ~TT_DESCRIPTOR_PAGE_BASE_ADDRESS_MASK) != 0) || ((Length & ~TT_DESCRIPTOR_PAGE_BASE_ADDRESS_MASK) != 0)){
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// minimum granularity is SIZE_4KB (4KB on ARM)
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DEBUG ((EFI_D_PAGE, "SetMemoryAttributes(%lx, %lx, %lx): minimum ganularity is SIZE_4KB\n", BaseAddress, Length, Attributes));
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return EFI_UNSUPPORTED;
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}
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return SetMemoryAttributes (BaseAddress, Length, Attributes, 0);
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}
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//
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// Add a new protocol to support
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//
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EFI_STATUS
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EFIAPI
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CpuConvertPagesToUncachedVirtualAddress (
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IN VIRTUAL_UNCACHED_PAGES_PROTOCOL *This,
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IN EFI_PHYSICAL_ADDRESS Address,
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IN UINTN Length,
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IN EFI_PHYSICAL_ADDRESS VirtualMask,
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OUT UINT64 *Attributes OPTIONAL
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)
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{
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EFI_STATUS Status;
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EFI_GCD_MEMORY_SPACE_DESCRIPTOR GcdDescriptor;
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if (Attributes != NULL) {
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Status = gDS->GetMemorySpaceDescriptor (Address, &GcdDescriptor);
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if (!EFI_ERROR (Status)) {
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*Attributes = GcdDescriptor.Attributes;
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}
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}
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//
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// Make this address range page fault if accessed. If it is a DMA buffer than this would
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// be the PCI address. Code should always use the CPU address, and we will or in VirtualMask
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// to that address.
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//
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Status = SetMemoryAttributes (Address, Length, EFI_MEMORY_WP, 0);
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if (!EFI_ERROR (Status)) {
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Status = SetMemoryAttributes (Address | VirtualMask, Length, EFI_MEMORY_UC, VirtualMask);
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}
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DEBUG ((DEBUG_INFO | DEBUG_LOAD, "ConvertPagesToUncachedVirtualAddress()\n Unmapped 0x%08lx Mapped 0x%08lx 0x%x bytes\n", Address, Address | VirtualMask, Length));
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return Status;
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}
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EFI_STATUS
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EFIAPI
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CpuReconvertPages (
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IN VIRTUAL_UNCACHED_PAGES_PROTOCOL *This,
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IN EFI_PHYSICAL_ADDRESS Address,
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IN UINTN Length,
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IN EFI_PHYSICAL_ADDRESS VirtualMask,
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IN UINT64 Attributes
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)
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{
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EFI_STATUS Status;
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DEBUG ((DEBUG_INFO | DEBUG_LOAD, "CpuReconvertPages(%lx, %x, %lx, %lx)\n", Address, Length, VirtualMask, Attributes));
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//
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// Unmap the alaised Address
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//
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Status = SetMemoryAttributes (Address | VirtualMask, Length, EFI_MEMORY_WP, 0);
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if (!EFI_ERROR (Status)) {
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//
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// Restore atttributes
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//
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Status = SetMemoryAttributes (Address, Length, Attributes, 0);
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}
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return Status;
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}
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VIRTUAL_UNCACHED_PAGES_PROTOCOL gVirtualUncachedPages = {
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CpuConvertPagesToUncachedVirtualAddress,
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CpuReconvertPages
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};
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@ -1,6 +1,7 @@
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/** @file
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Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
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Copyright (c) 2011 - 2013, ARM Ltd. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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@ -139,6 +140,23 @@ PublishArmProcessorTable(
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VOID
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);
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EFI_STATUS
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SetMemoryAttributes (
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IN EFI_PHYSICAL_ADDRESS BaseAddress,
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IN UINT64 Length,
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IN UINT64 Attributes,
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IN EFI_PHYSICAL_ADDRESS VirtualMask
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);
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EFI_STATUS
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SetGcdMemorySpaceAttributes (
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IN EFI_GCD_MEMORY_SPACE_DESCRIPTOR *MemorySpaceMap,
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IN UINTN NumberOfDescriptors,
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IN EFI_PHYSICAL_ADDRESS BaseAddress,
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IN UINT64 Length,
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IN UINT64 Attributes
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);
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extern VIRTUAL_UNCACHED_PAGES_PROTOCOL gVirtualUncachedPages;
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#endif // __CPU_DXE_ARM_EXCEPTION_H__
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@ -3,7 +3,7 @@
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# DXE CPU driver
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#
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# Copyright (c) 2009, Apple Inc. All rights reserved.<BR>
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# Copyright (c) 2011-2012, ARM Limited. All rights reserved.
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# Copyright (c) 2011-2013, ARM Limited. All rights reserved.
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#
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# This program and the accompanying materials
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# are licensed and made available under the terms and conditions of the BSD License
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@ -28,6 +28,7 @@
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CpuDxe.c
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CpuDxe.h
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CpuMpCore.c
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CpuMmuCommon.c
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#
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# Prior to ARMv6 we have multiple stacks, one per mode
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@ -0,0 +1,256 @@
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/** @file
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*
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* Copyright (c) 2013, ARM Limited. All rights reserved.
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*
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* This program and the accompanying materials
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* are licensed and made available under the terms and conditions of the BSD License
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* which accompanies this distribution. The full text of the license may be found at
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* http://opensource.org/licenses/bsd-license.php
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*
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* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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*
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**/
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#include "CpuDxe.h"
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/**
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Searches memory descriptors covered by given memory range.
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This function searches into the Gcd Memory Space for descriptors
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(from StartIndex to EndIndex) that contains the memory range
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specified by BaseAddress and Length.
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@param MemorySpaceMap Gcd Memory Space Map as array.
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@param NumberOfDescriptors Number of descriptors in map.
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@param BaseAddress BaseAddress for the requested range.
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@param Length Length for the requested range.
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@param StartIndex Start index into the Gcd Memory Space Map.
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@param EndIndex End index into the Gcd Memory Space Map.
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@retval EFI_SUCCESS Search successfully.
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@retval EFI_NOT_FOUND The requested descriptors does not exist.
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**/
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EFI_STATUS
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SearchGcdMemorySpaces (
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IN EFI_GCD_MEMORY_SPACE_DESCRIPTOR *MemorySpaceMap,
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IN UINTN NumberOfDescriptors,
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IN EFI_PHYSICAL_ADDRESS BaseAddress,
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IN UINT64 Length,
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OUT UINTN *StartIndex,
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OUT UINTN *EndIndex
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)
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{
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UINTN Index;
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*StartIndex = 0;
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*EndIndex = 0;
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for (Index = 0; Index < NumberOfDescriptors; Index++) {
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if ((BaseAddress >= MemorySpaceMap[Index].BaseAddress) &&
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(BaseAddress < (MemorySpaceMap[Index].BaseAddress + MemorySpaceMap[Index].Length))) {
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*StartIndex = Index;
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}
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if (((BaseAddress + Length - 1) >= MemorySpaceMap[Index].BaseAddress) &&
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((BaseAddress + Length - 1) < (MemorySpaceMap[Index].BaseAddress + MemorySpaceMap[Index].Length))) {
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*EndIndex = Index;
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return EFI_SUCCESS;
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}
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}
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return EFI_NOT_FOUND;
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}
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/**
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Sets the attributes for a specified range in Gcd Memory Space Map.
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This function sets the attributes for a specified range in
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Gcd Memory Space Map.
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@param MemorySpaceMap Gcd Memory Space Map as array
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@param NumberOfDescriptors Number of descriptors in map
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@param BaseAddress BaseAddress for the range
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@param Length Length for the range
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@param Attributes Attributes to set
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@retval EFI_SUCCESS Memory attributes set successfully
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@retval EFI_NOT_FOUND The specified range does not exist in Gcd Memory Space
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**/
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EFI_STATUS
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SetGcdMemorySpaceAttributes (
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IN EFI_GCD_MEMORY_SPACE_DESCRIPTOR *MemorySpaceMap,
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IN UINTN NumberOfDescriptors,
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IN EFI_PHYSICAL_ADDRESS BaseAddress,
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IN UINT64 Length,
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IN UINT64 Attributes
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)
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{
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EFI_STATUS Status;
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UINTN Index;
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UINTN StartIndex;
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UINTN EndIndex;
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EFI_PHYSICAL_ADDRESS RegionStart;
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UINT64 RegionLength;
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DEBUG ((DEBUG_GCD, "SetGcdMemorySpaceAttributes[0x%lX; 0x%lX] = 0x%lX\n",
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BaseAddress, BaseAddress + Length, Attributes));
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//
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// Get all memory descriptors covered by the memory range
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//
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Status = SearchGcdMemorySpaces (
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MemorySpaceMap,
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NumberOfDescriptors,
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BaseAddress,
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Length,
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&StartIndex,
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&EndIndex
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);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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//
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// Go through all related descriptors and set attributes accordingly
|
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//
|
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for (Index = StartIndex; Index <= EndIndex; Index++) {
|
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if (MemorySpaceMap[Index].GcdMemoryType == EfiGcdMemoryTypeNonExistent) {
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continue;
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}
|
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//
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// Calculate the start and end address of the overlapping range
|
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//
|
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if (BaseAddress >= MemorySpaceMap[Index].BaseAddress) {
|
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RegionStart = BaseAddress;
|
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} else {
|
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RegionStart = MemorySpaceMap[Index].BaseAddress;
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}
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if ((BaseAddress + Length - 1) < (MemorySpaceMap[Index].BaseAddress + MemorySpaceMap[Index].Length)) {
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RegionLength = BaseAddress + Length - RegionStart;
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} else {
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RegionLength = MemorySpaceMap[Index].BaseAddress + MemorySpaceMap[Index].Length - RegionStart;
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}
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//
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// Set memory attributes according to MTRR attribute and the original attribute of descriptor
|
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//
|
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gDS->SetMemorySpaceAttributes (
|
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RegionStart,
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RegionLength,
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(MemorySpaceMap[Index].Attributes & ~EFI_MEMORY_CACHETYPE_MASK) | (MemorySpaceMap[Index].Capabilities & Attributes)
|
||||
);
|
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}
|
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|
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return EFI_SUCCESS;
|
||||
}
|
||||
|
||||
/**
|
||||
This function modifies the attributes for the memory region specified by BaseAddress and
|
||||
Length from their current attributes to the attributes specified by Attributes.
|
||||
|
||||
@param This The EFI_CPU_ARCH_PROTOCOL instance.
|
||||
@param BaseAddress The physical address that is the start address of a memory region.
|
||||
@param Length The size in bytes of the memory region.
|
||||
@param Attributes The bit mask of attributes to set for the memory region.
|
||||
|
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@retval EFI_SUCCESS The attributes were set for the memory region.
|
||||
@retval EFI_ACCESS_DENIED The attributes for the memory resource range specified by
|
||||
BaseAddress and Length cannot be modified.
|
||||
@retval EFI_INVALID_PARAMETER Length is zero.
|
||||
@retval EFI_OUT_OF_RESOURCES There are not enough system resources to modify the attributes of
|
||||
the memory resource range.
|
||||
@retval EFI_UNSUPPORTED The processor does not support one or more bytes of the memory
|
||||
resource range specified by BaseAddress and Length.
|
||||
The bit mask of attributes is not support for the memory resource
|
||||
range specified by BaseAddress and Length.
|
||||
|
||||
**/
|
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EFI_STATUS
|
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EFIAPI
|
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CpuSetMemoryAttributes (
|
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IN EFI_CPU_ARCH_PROTOCOL *This,
|
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IN EFI_PHYSICAL_ADDRESS BaseAddress,
|
||||
IN UINT64 Length,
|
||||
IN UINT64 Attributes
|
||||
)
|
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{
|
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DEBUG ((EFI_D_PAGE, "CpuSetMemoryAttributes(%lx, %lx, %lx)\n", BaseAddress, Length, Attributes));
|
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|
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if ((BaseAddress & (SIZE_4KB - 1)) != 0) {
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// Minimum granularity is SIZE_4KB (4KB on ARM)
|
||||
DEBUG ((EFI_D_PAGE, "CpuSetMemoryAttributes(%lx, %lx, %lx): Minimum ganularity is SIZE_4KB\n", BaseAddress, Length, Attributes));
|
||||
return EFI_UNSUPPORTED;
|
||||
}
|
||||
|
||||
return SetMemoryAttributes (BaseAddress, Length, Attributes, 0);
|
||||
}
|
||||
|
||||
EFI_STATUS
|
||||
EFIAPI
|
||||
CpuConvertPagesToUncachedVirtualAddress (
|
||||
IN VIRTUAL_UNCACHED_PAGES_PROTOCOL *This,
|
||||
IN EFI_PHYSICAL_ADDRESS Address,
|
||||
IN UINTN Length,
|
||||
IN EFI_PHYSICAL_ADDRESS VirtualMask,
|
||||
OUT UINT64 *Attributes OPTIONAL
|
||||
)
|
||||
{
|
||||
EFI_STATUS Status;
|
||||
EFI_GCD_MEMORY_SPACE_DESCRIPTOR GcdDescriptor;
|
||||
|
||||
if (Attributes != NULL) {
|
||||
Status = gDS->GetMemorySpaceDescriptor (Address, &GcdDescriptor);
|
||||
if (!EFI_ERROR (Status)) {
|
||||
*Attributes = GcdDescriptor.Attributes;
|
||||
}
|
||||
}
|
||||
|
||||
//
|
||||
// Make this address range page fault if accessed. If it is a DMA buffer than this would
|
||||
// be the PCI address. Code should always use the CPU address, and we will or in VirtualMask
|
||||
// to that address.
|
||||
//
|
||||
Status = SetMemoryAttributes (Address, Length, EFI_MEMORY_WP, 0);
|
||||
if (!EFI_ERROR (Status)) {
|
||||
Status = SetMemoryAttributes (Address | VirtualMask, Length, EFI_MEMORY_UC, VirtualMask);
|
||||
}
|
||||
|
||||
DEBUG ((DEBUG_INFO | DEBUG_LOAD, "CpuConvertPagesToUncachedVirtualAddress()\n Unmapped 0x%08lx Mapped 0x%08lx 0x%x bytes\n", Address, Address | VirtualMask, Length));
|
||||
|
||||
return Status;
|
||||
}
|
||||
|
||||
|
||||
EFI_STATUS
|
||||
EFIAPI
|
||||
CpuReconvertPages (
|
||||
IN VIRTUAL_UNCACHED_PAGES_PROTOCOL *This,
|
||||
IN EFI_PHYSICAL_ADDRESS Address,
|
||||
IN UINTN Length,
|
||||
IN EFI_PHYSICAL_ADDRESS VirtualMask,
|
||||
IN UINT64 Attributes
|
||||
)
|
||||
{
|
||||
EFI_STATUS Status;
|
||||
|
||||
DEBUG ((DEBUG_INFO | DEBUG_LOAD, "CpuReconvertPages(%lx, %x, %lx, %lx)\n", Address, Length, VirtualMask, Attributes));
|
||||
|
||||
//
|
||||
// Unmap the aliased Address
|
||||
//
|
||||
Status = SetMemoryAttributes (Address | VirtualMask, Length, EFI_MEMORY_WP, 0);
|
||||
if (!EFI_ERROR (Status)) {
|
||||
//
|
||||
// Restore atttributes
|
||||
//
|
||||
Status = SetMemoryAttributes (Address, Length, Attributes, 0);
|
||||
}
|
||||
|
||||
return Status;
|
||||
}
|
||||
|
||||
|
||||
VIRTUAL_UNCACHED_PAGES_PROTOCOL gVirtualUncachedPages = {
|
||||
CpuConvertPagesToUncachedVirtualAddress,
|
||||
CpuReconvertPages
|
||||
};
|
||||
Loading…
Reference in New Issue