diff options
Diffstat (limited to 'UefiCpuPkg')
| -rw-r--r-- | UefiCpuPkg/CpuDxe/CpuDxe.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/UefiCpuPkg/CpuDxe/CpuDxe.c b/UefiCpuPkg/CpuDxe/CpuDxe.c index bd0aedc7fb..c5be1ff124 100644 --- a/UefiCpuPkg/CpuDxe/CpuDxe.c +++ b/UefiCpuPkg/CpuDxe/CpuDxe.c @@ -1038,6 +1038,36 @@ FreeMemorySpaceMap: }
/**
+ Add and allocate CPU local APIC memory mapped space.
+
+ @param[in]ImageHandle Image handle this driver.
+
+**/
+VOID
+AddLocalApicMemorySpace (
+ IN EFI_HANDLE ImageHandle
+ )
+{
+ EFI_STATUS Status;
+ EFI_PHYSICAL_ADDRESS BaseAddress;
+
+ BaseAddress = (EFI_PHYSICAL_ADDRESS) GetLocalApicBaseAddress();
+ Status = AddMemoryMappedIoSpace (BaseAddress, SIZE_4KB, EFI_MEMORY_UC);
+ ASSERT_EFI_ERROR (Status);
+
+ Status = gDS->AllocateMemorySpace (
+ EfiGcdAllocateAddress,
+ EfiGcdMemoryTypeMemoryMappedIo,
+ 0,
+ SIZE_4KB,
+ &BaseAddress,
+ ImageHandle,
+ NULL
+ );
+ ASSERT_EFI_ERROR (Status);
+}
+
+/**
Initialize the state information for the CPU Architectural Protocol.
@param ImageHandle Image handle this driver.
@@ -1098,6 +1128,11 @@ InitializeCpu ( RefreshGcdMemoryAttributes ();
//
+ // Add and allocate local APIC memory mapped space
+ //
+ AddLocalApicMemorySpace (ImageHandle);
+
+ //
// Setup a callback for idle events
//
Status = gBS->CreateEventEx (
|