Merge branch 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...

[linux-2.6-block.git] / arch / x86 / platform / efi / efi_stub_64.S

diff --git a/arch/x86/platform/efi/efi_stub_64.S b/arch/x86/platform/efi/efi_stub_64.S
index 0df2dcc18404315661ef68517d5b3ca78cbd06bf..92723aeae0f96d2d5def8aac111765d9683f4d7f 100644 (file)
--- a/arch/x86/platform/efi/efi_stub_64.S
+++ b/arch/x86/platform/efi/efi_stub_64.S
@@ -39,41 +39,6 @@
        mov %rsi, %cr0;                 \
        mov (%rsp), %rsp
 
-       /* stolen from gcc */
-       .macro FLUSH_TLB_ALL
-       movq %r15, efi_scratch(%rip)
-       movq %r14, efi_scratch+8(%rip)
-       movq %cr4, %r15
-       movq %r15, %r14
-       andb $0x7f, %r14b
-       movq %r14, %cr4
-       movq %r15, %cr4
-       movq efi_scratch+8(%rip), %r14
-       movq efi_scratch(%rip), %r15
-       .endm
-
-       .macro SWITCH_PGT
-       cmpb $0, efi_scratch+24(%rip)
-       je 1f
-       movq %r15, efi_scratch(%rip)            # r15
-       # save previous CR3
-       movq %cr3, %r15
-       movq %r15, efi_scratch+8(%rip)          # prev_cr3
-       movq efi_scratch+16(%rip), %r15         # EFI pgt
-       movq %r15, %cr3
-       1:
-       .endm
-
-       .macro RESTORE_PGT
-       cmpb $0, efi_scratch+24(%rip)
-       je 2f
-       movq efi_scratch+8(%rip), %r15
-       movq %r15, %cr3
-       movq efi_scratch(%rip), %r15
-       FLUSH_TLB_ALL
-       2:
-       .endm
-
 ENTRY(efi_call)
        FRAME_BEGIN
        SAVE_XMM
@@ -85,17 +50,9 @@ ENTRY(efi_call)
        mov %r8, %r9
        mov %rcx, %r8
        mov %rsi, %rcx
-       SWITCH_PGT
        call *%rdi
-       RESTORE_PGT
        addq $48, %rsp
        RESTORE_XMM
        FRAME_END
        ret
 ENDPROC(efi_call)
-
-       .data
-ENTRY(efi_scratch)
-       .fill 3,8,0
-       .byte 0
-       .quad 0