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path: root/UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuDxeSmm.c
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Diffstat (limited to 'UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuDxeSmm.c')
-rw-r--r--UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuDxeSmm.c37
1 files changed, 35 insertions, 2 deletions
diff --git a/UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuDxeSmm.c b/UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuDxeSmm.c
index 670a5cf663..fb4655128f 100644
--- a/UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuDxeSmm.c
+++ b/UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuDxeSmm.c
@@ -970,9 +970,9 @@ PiCpuSmmEntry (
//
BufferPages = EFI_SIZE_TO_PAGES (SIZE_32KB + TileSize * (mMaxNumberOfCpus - 1));
if ((FamilyId == 4) || (FamilyId == 5)) {
- Buffer = AllocateAlignedCodePages (BufferPages, SIZE_32KB);
+ Buffer = AllocateAlignedPages (BufferPages, SIZE_32KB);
} else {
- Buffer = AllocateAlignedCodePages (BufferPages, SIZE_4KB);
+ Buffer = AllocateAlignedPages (BufferPages, SIZE_4KB);
}
ASSERT (Buffer != NULL);
DEBUG ((EFI_D_INFO, "SMRAM SaveState Buffer (0x%08x, 0x%08x)\n", Buffer, EFI_PAGES_TO_SIZE(BufferPages)));
@@ -1416,6 +1416,35 @@ ConfigSmmCodeAccessCheck (
}
/**
+ This API provides a way to allocate memory for page table.
+
+ This API can be called more once to allocate memory for page tables.
+
+ Allocates the number of 4KB pages of type EfiRuntimeServicesData and returns a pointer to the
+ allocated buffer. The buffer returned is aligned on a 4KB boundary. If Pages is 0, then NULL
+ is returned. If there is not enough memory remaining to satisfy the request, then NULL is
+ returned.
+
+ @param Pages The number of 4 KB pages to allocate.
+
+ @return A pointer to the allocated buffer or NULL if allocation fails.
+
+**/
+VOID *
+AllocatePageTableMemory (
+ IN UINTN Pages
+ )
+{
+ VOID *Buffer;
+
+ Buffer = SmmCpuFeaturesAllocatePageTableMemory (Pages);
+ if (Buffer != NULL) {
+ return Buffer;
+ }
+ return AllocatePages (Pages);
+}
+
+/**
Perform the remaining tasks.
**/
@@ -1440,6 +1469,8 @@ PerformRemainingTasks (
//
ConfigSmmCodeAccessCheck ();
+ SmmCpuFeaturesCompleteSmmReadyToLock ();
+
//
// Clean SMM ready to lock flag
//
@@ -1465,6 +1496,8 @@ PerformPreTasks (
//
ConfigSmmCodeAccessCheck ();
+ SmmCpuFeaturesCompleteSmmReadyToLock ();
+
mRestoreSmmConfigurationInS3 = FALSE;
}
}