diff options
| author | bxing <bxing@6f19259b-4bc3-4df7-8a09-765794883524> | 2006-07-25 08:30:02 +0000 |
|---|---|---|
| committer | bxing <bxing@6f19259b-4bc3-4df7-8a09-765794883524> | 2006-07-25 08:30:02 +0000 |
| commit | ebca8169891c61ff3bfe9cc226a65a137e32c1ab (patch) | |
| tree | be995ace775122bf3dc0ac123354aa15b1d3a9e5 /MdePkg/Library/BaseLib/X64/Non-existing.c | |
| parent | 991d660b95e9538308b0cc83eff319d584cb1b7a (diff) | |
| download | edk2-platforms-ebca8169891c61ff3bfe9cc226a65a137e32c1ab.tar.xz | |
Added a 64-bit version of EnablePaging64() on X64. AsmEnablePaging64() is the transition code to switch the processor from 32-bit into 64-bit long mode and thus is typically linked with 32-bit images only. However, it's desired to link the transition code into a 64-bit image in some special cases. CPU driver is a good example among those.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@1092 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 | 43 |
1 files changed, 0 insertions, 43 deletions
diff --git a/MdePkg/Library/BaseLib/X64/Non-existing.c b/MdePkg/Library/BaseLib/X64/Non-existing.c index a1c4677dad..4f0c932380 100644 --- a/MdePkg/Library/BaseLib/X64/Non-existing.c +++ b/MdePkg/Library/BaseLib/X64/Non-existing.c @@ -108,46 +108,3 @@ 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);
-}
|