diff options
| author | qhuang8 <qhuang8@6f19259b-4bc3-4df7-8a09-765794883524> | 2009-04-30 07:17:52 +0000 |
|---|---|---|
| committer | qhuang8 <qhuang8@6f19259b-4bc3-4df7-8a09-765794883524> | 2009-04-30 07:17:52 +0000 |
| commit | 744e71a3bf96a450329f5b7788202f5fabe19c9d (patch) | |
| tree | af184f1bbca42fc444c9f88800de22ea8c423d96 /MdePkg/Library/BaseLib/X64/Non-existing.c | |
| parent | 8cf6dad8ab1673069318299e6baa1373b514b1dc (diff) | |
| download | edk2-platforms-744e71a3bf96a450329f5b7788202f5fabe19c9d.tar.xz | |
Fix the bug that EnablePaging64() should assert() for x64 platform.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8223 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdePkg/Library/BaseLib/X64/Non-existing.c')
| -rw-r--r-- | MdePkg/Library/BaseLib/X64/Non-existing.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseLib/X64/Non-existing.c b/MdePkg/Library/BaseLib/X64/Non-existing.c index 9814cba9c9..5e48c963bc 100644 --- a/MdePkg/Library/BaseLib/X64/Non-existing.c +++ b/MdePkg/Library/BaseLib/X64/Non-existing.c @@ -107,3 +107,47 @@ InternalX86DisablePaging32 ( //
ASSERT (FALSE);
}
+
+
+/**
+ Enables the 64-bit paging mode on the CPU.
+
+ Enables the 64-bit paging mode on the CPU. CR0, CR3, CR4, and the page tables
+ must be properly initialized prior to calling this service. This function
+ assumes the current execution mode is 32-bit protected mode with flat
+ descriptors. This function is only available on IA-32. After the 64-bit
+ paging mode is enabled, control is transferred to the function specified by
+ EntryPoint using the new stack specified by NewStack and passing in the
+ parameters specified by Context1 and Context2. Context1 and Context2 are
+ optional and may be 0. The function EntryPoint must never return.
+
+ @param Cs The 16-bit selector to load in the CS before EntryPoint
+ is called. The descriptor in the GDT that this selector
+ references must be setup for long mode.
+ @param EntryPoint The 64-bit virtual address of the function to call with
+ the new stack after paging is enabled.
+ @param Context1 The 64-bit virtual address of the context to pass into
+ the EntryPoint function as the first parameter after
+ paging is enabled.
+ @param Context2 The 64-bit virtual address of the context to pass into
+ the EntryPoint function as the second parameter after
+ paging is enabled.
+ @param NewStack The 64-bit virtual address of the new stack to use for
+ the EntryPoint function after paging is enabled.
+
+**/
+VOID
+EFIAPI
+InternalX86EnablePaging64 (
+ IN UINT16 Cs,
+ IN UINT64 EntryPoint,
+ IN UINT64 Context1, OPTIONAL
+ IN UINT64 Context2, OPTIONAL
+ IN UINT64 NewStack
+ )
+{
+ //
+ // This function cannot work on x64 platform.
+ //
+ ASSERT (FALSE);
+}
|