Save/Restore missing volatile registers (XMM0-5) save/restore in Page Fault handler.
Signed-off-by: Jeff Fan <jeff.fan@intel.com> Reviewed-by: Jiewen Yao <jiewen.yao@intel.com> git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13974 6f19259b-4bc3-4df7-8a09-765794883524
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@@ -1,6 +1,6 @@
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;------------------------------------------------------------------------------
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;
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; Copyright (c) 2010 - 2011, Intel Corporation. All rights reserved.<BR>
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; Copyright (c) 2010 - 2012, Intel Corporation. All rights reserved.<BR>
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; This program and the accompanying materials
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; are licensed and made available under the terms and conditions of the BSD License
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; which accompanies this distribution. The full text of the license may be found at
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@@ -32,10 +32,28 @@ PageFaultHandlerHook PROC
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push r9
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push r10
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push r11
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add rsp, -10h * 6 - 8 ; reserve memory to store XMM registers and make address 16-byte alignment
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movdqa [rsp], xmm0
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movdqa [rsp + 10h], xmm1
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movdqa [rsp + 20h], xmm2
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movdqa [rsp + 30h], xmm3
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movdqa [rsp + 40h], xmm4
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movdqa [rsp + 50h], xmm5
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add rsp, -20h
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call PageFaultHandler
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add rsp, 20h
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test al, al
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movdqa xmm0, [rsp]
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movdqa xmm1, [rsp + 10h]
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movdqa xmm2, [rsp + 20h]
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movdqa xmm3, [rsp + 30h]
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movdqa xmm4, [rsp + 40h]
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movdqa xmm5, [rsp + 50h]
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add rsp, 10h * 6 + 8
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test al, al ; set ZF flag
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pop r11
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pop r10
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pop r9
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@@ -43,7 +61,7 @@ PageFaultHandlerHook PROC
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pop rdx
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pop rcx
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pop rax ; restore all volatile registers
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jnz @F
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jnz @F ; check ZF flag
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jmp mOriginalHandler
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@@:
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add rsp, 08h ; skip error code for PF
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