diff options
Diffstat (limited to 'OvmfPkg/PlatformPei')
| -rw-r--r-- | OvmfPkg/PlatformPei/MemDetect.c | 36 | ||||
| -rw-r--r-- | OvmfPkg/PlatformPei/Platform.h | 5 |
2 files changed, 40 insertions, 1 deletions
diff --git a/OvmfPkg/PlatformPei/MemDetect.c b/OvmfPkg/PlatformPei/MemDetect.c index 9f6ca1942e..9145ebb89d 100644 --- a/OvmfPkg/PlatformPei/MemDetect.c +++ b/OvmfPkg/PlatformPei/MemDetect.c @@ -83,11 +83,45 @@ GetSystemMemorySizeAbove4gb ( return LShiftU64 (Size, 16);
}
+/**
+ Publish PEI core memory
+
+ @return EFI_SUCCESS The PEIM initialized successfully.
+
+**/
+EFI_STATUS
+PublishPeiMemory (
+ VOID
+ )
+{
+ EFI_STATUS Status;
+ EFI_PHYSICAL_ADDRESS MemoryBase;
+ UINT64 MemorySize;
+ UINT64 LowerMemorySize;
+
+ LowerMemorySize = GetSystemMemorySizeBelow4gb ();
+
+ MemoryBase = PcdGet32 (PcdOvmfMemFvBase) + PcdGet32 (PcdOvmfMemFvSize);
+ MemorySize = LowerMemorySize - MemoryBase;
+ if (MemorySize > SIZE_64MB) {
+ MemoryBase = LowerMemorySize - SIZE_64MB;
+ MemorySize = SIZE_64MB;
+ }
+
+ //
+ // Publish this memory to the PEI Core
+ //
+ Status = PublishSystemMemory(MemoryBase, MemorySize);
+ ASSERT_EFI_ERROR (Status);
+
+ return Status;
+}
+
/**
Peform Memory Detection
- @return EFI_SUCCESS The PEIM initialized successfully.
+ @return Top of memory
**/
EFI_PHYSICAL_ADDRESS
diff --git a/OvmfPkg/PlatformPei/Platform.h b/OvmfPkg/PlatformPei/Platform.h index d63d124064..7344c610bb 100644 --- a/OvmfPkg/PlatformPei/Platform.h +++ b/OvmfPkg/PlatformPei/Platform.h @@ -57,6 +57,11 @@ AddUntestedMemoryRangeHob ( EFI_PHYSICAL_ADDRESS MemoryLimit
);
+EFI_STATUS
+PublishPeiMemory (
+ VOID
+ );
+
EFI_PHYSICAL_ADDRESS
MemDetect (
VOID
|