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Add AsmEnableCache() and AsmDisableCache() as the IA32 & x64 specific BaseLib API.

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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6807 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
qhuang8
2008-12-03 02:19:49 +00:00
parent f90eb36c15
commit be5f161485
3 changed files with 34 additions and 6 deletions
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6
MdePkg/Library/BaseLib/Ia32/DisableCache.c
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@@ -13,10 +13,10 @@
**/
/**
Disables caches.
Set CD bit and clear NW bit of CR0 followed by a WBINVD.
Set the CD bit of CR0 to 1, clear the NW bit of CR0 to 0, and flush all caches with a
WBINVD instruction.
Disables the caches by setting the CD bit of CR0 to 1, clearing the NW bit of CR0 to 0,
and executing a WBINVD instruction. This function is only available on IA-32 and x64.
**/
VOID