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Need use 32-bit register to hold 32-bit stack address. 

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8481 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
klu2 2009-06-05 13:36:09 +00:00
parent 5a76206190
commit 0d654ba433
1 changed files with 3 additions and 3 deletions
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6
MdePkg/Library/BaseLib/X64/DisablePaging64.S
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@ -39,9 +39,9 @@ ASM_GLOBAL ASM_PFX(InternalX86DisablePaging64)
ASM_PFX(InternalX86DisablePaging64):
cli
lea L1(%rip), %rsi # rsi <- The start address of transition code
mov 0x28(%rsp), %rdi # rdi <- New stack
sub $64, %rdi # rdi <- use 64 byte in stack to hold transition code
mov %rdi, %r10 # r10 <- The start address of transicition code below 4G
mov 0x28(%rsp), %edi # rdi <- New stack
sub $64, %edi # rdi <- use 64 byte in stack to hold transition code
mov %edi, %r10d # r10 <- The start address of transicition code below 4G
lea _mTransitionEnd(%rip), %rax # rax <- end of transition code
sub %rsi, %rax # rax <- The size of transition piece code
push %rcx # save rcx to stack