mov gs, eax\r
mov ax, [rbx + DSC_SS]\r
mov ss, eax\r
- mov rax, strict qword 0 ; mov rax, _SmiHandler\r
-_SmiHandlerAbsAddr:\r
- jmp rax\r
\r
_SmiHandler:\r
mov rbx, [rsp + 0x8] ; rcx <- CpuIndex\r
add rsp, -0x20\r
\r
mov rcx, rbx\r
- call ASM_PFX(CpuSmmDebugEntry)\r
+ mov rax, strict qword 0 ; call ASM_PFX(CpuSmmDebugEntry)\r
+CpuSmmDebugEntryAbsAddr:\r
+ call rax\r
\r
mov rcx, rbx\r
- call ASM_PFX(SmiRendezvous)\r
+ mov rax, strict qword 0 ; call ASM_PFX(SmiRendezvous)\r
+SmiRendezvousAbsAddr:\r
+ call rax\r
\r
mov rcx, rbx\r
- call ASM_PFX(CpuSmmDebugExit)\r
+ mov rax, strict qword 0 ; call ASM_PFX(CpuSmmDebugExit)\r
+CpuSmmDebugExitAbsAddr:\r
+ call rax\r
\r
add rsp, 0x20\r
\r
\r
add rsp, 0x200\r
\r
- lea rax, [ASM_PFX(mXdSupported)]\r
+ mov rax, strict qword 0 ; lea rax, [ASM_PFX(mXdSupported)]\r
+mXdSupportedAbsAddr:\r
mov al, [rax]\r
cmp al, 0\r
jz .1\r
\r
ASM_PFX(gcSmiHandlerSize) DW $ - _SmiEntryPoint\r
\r
+;\r
+; Retrieve the address and fill it into mov opcode.\r
+;\r
+; It is called in the driver entry point first.\r
+; It is used to fix up the real address in mov opcode.\r
+; Then, after the code logic is copied to the different location,\r
+; the code can also run.\r
+;\r
global ASM_PFX(PiSmmCpuSmiEntryFixupAddress)\r
ASM_PFX(PiSmmCpuSmiEntryFixupAddress):\r
lea rax, [ASM_PFX(gSmiHandlerIdtr)]\r
lea rcx, [SmiHandlerIdtrAbsAddr]\r
mov qword [rcx - 8], rax\r
\r
- lea rax, [_SmiHandler]\r
- lea rcx, [_SmiHandlerAbsAddr]\r
+ lea rax, [ASM_PFX(CpuSmmDebugEntry)]\r
+ lea rcx, [CpuSmmDebugEntryAbsAddr]\r
+ mov qword [rcx - 8], rax\r
+\r
+ lea rax, [ASM_PFX(SmiRendezvous)]\r
+ lea rcx, [SmiRendezvousAbsAddr]\r
+ mov qword [rcx - 8], rax\r
+\r
+ lea rax, [ASM_PFX(CpuSmmDebugExit)]\r
+ lea rcx, [CpuSmmDebugExitAbsAddr]\r
+ mov qword [rcx - 8], rax\r
+\r
+ lea rax, [ASM_PFX(mXdSupported)]\r
+ lea rcx, [mXdSupportedAbsAddr]\r
mov qword [rcx - 8], rax\r
ret\r