回复: [edk2-devel][PATCH v1] IntelFsp2Pkg: Improvement of supporting null UPD pointer in FSP-T

["gaoliming" <gaoliming@byosoft.com.cn>]

Chasel:
  Please see the announce mail https://edk2.groups.io/g/devel/message/96175

  Now, we are in soft feature freeze. If the patch wants to catch this
stable tag, please highlight it and get approval from Stewards.

Thanks
Liming
> -----邮件原件-----
> 发件人: Chiu, Chasel <chasel.chiu@intel.com>
> 发送时间: 2022年11月11日 8:47
> 收件人: Gao, Liming <gaoliming@byosoft.com.cn>; Kinney, Michael D
> <michael.d.kinney@intel.com>
> 抄送: Desimone, Nathaniel L <nathaniel.l.desimone@intel.com>; Zeng, Star
> <star.zeng@intel.com>; S, Ashraf Ali <ashraf.ali.s@intel.com>; Duggapu,
> Chinni B <chinni.b.duggapu@intel.com>; devel@edk2.groups.io; Kuo, Ted
> <ted.kuo@intel.com>
> 主题: RE: [edk2-devel][PATCH v1] IntelFsp2Pkg: Improvement of supporting
> null UPD pointer in FSP-T
> 
> 
> Hi Liming, Michael,
> 
> May I know why we cannot merge this PR
> https://github.com/tianocore/edk2/pull/3624 ?
> Was it due to Hard Feature Freeze? But I thought we still have time right?
> 
> Thanks,
> Chasel
> 
> 
> > -----Original Message-----
> > From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Kuo,
> > Ted
> > Sent: Wednesday, November 9, 2022 3:31 AM
> > To: devel@edk2.groups.io
> > Cc: Chiu, Chasel <chasel.chiu@intel.com>; Desimone, Nathaniel L
> > <nathaniel.l.desimone@intel.com>; Zeng, Star <star.zeng@intel.com>; S,
> > Ashraf Ali <ashraf.ali.s@intel.com>; Duggapu, Chinni B
> > <chinni.b.duggapu@intel.com>
> > Subject: [edk2-devel][PATCH v1] IntelFsp2Pkg: Improvement of supporting
> > null UPD pointer in FSP-T
> >
> > REF:https://bugzilla.tianocore.org/show_bug.cgi?id=4114
> >
> > 1.Use xmm5 slot 1 and xmm6 slot 3 to save ucode status and UPD pointer
> >   respectively in TempRamInitApi in IA32 FspSecCoreT.
> > 2.Correct inappropriate description in the return value of
> >   AsmGetFspInfoHeader.
> > 3.Replace hardcoded offset value 0x1C with
> > FSP_HEADER_IMGBASE_OFFSET in
> >   FspHeler.nasm.
> >
> > Cc: Chasel Chiu <chasel.chiu@intel.com>
> > Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
> > Cc: Star Zeng <star.zeng@intel.com>
> > Cc: Ashraf Ali S <ashraf.ali.s@intel.com>
> > Cc: Chinni B Duggapu <chinni.b.duggapu@intel.com>
> > Signed-off-by: Ted Kuo <ted.kuo@intel.com>
> > ---
> >  .../FspSecCore/Ia32/FspApiEntryT.nasm         | 17 +++--
> >  IntelFsp2Pkg/FspSecCore/Ia32/FspHelper.nasm   |  4 +-
> >  .../FspSecCore/Ia32/SaveRestoreSseNasm.inc    | 74
> ++++++++++---------
> >  IntelFsp2Pkg/FspSecCore/SecFsp.h              |  2 +-
> >  IntelFsp2Pkg/FspSecCore/X64/FspHelper.nasm    |  4 +-
> >  5 files changed, 55 insertions(+), 46 deletions(-)
> >
> > diff --git a/IntelFsp2Pkg/FspSecCore/Ia32/FspApiEntryT.nasm
> > b/IntelFsp2Pkg/FspSecCore/Ia32/FspApiEntryT.nasm
> > index 73821ad22a..2cff8b3643 100644
> > --- a/IntelFsp2Pkg/FspSecCore/Ia32/FspApiEntryT.nasm
> > +++ b/IntelFsp2Pkg/FspSecCore/Ia32/FspApiEntryT.nasm
> > @@ -594,37 +594,38 @@ ASM_PFX(TempRamInitApi):
> >    SAVE_EAX   SAVE_EDX +  CALL_EBP
> ASM_PFX(LoadUpdPointerToECX) ;
> > ECX for UPD param+  SAVE_ECX                               ;
> save UPD param to slot
> > 3 in xmm6+   ;   ; Sec Platform Init   ;-  CALL_EBP
> > ASM_PFX(LoadUpdPointerToECX) ; ECX for UPD param   CALL_MMX
> > ASM_PFX(SecPlatformInit)   cmp       eax, 0   jnz
> TempRamInitExit    ;
> > Load microcode   LOAD_ESP-  CALL_EBP
> ASM_PFX(LoadUpdPointerToECX) ;
> > ECX for UPD param+  LOAD_ECX   CALL_MMX
> > ASM_PFX(LoadMicrocodeDefault)-  SXMMN     xmm6, 3,
> eax            ;Save
> > microcode return status in ECX-SLOT 3 in xmm6.+
> > SAVE_UCODE_STATUS                 ; Save microcode return status in
> slot 1 in
> > xmm5.   ;@note If return value eax is not 0, microcode did not load, but
> > continue and attempt to boot.    ; Call Sec CAR Init   LOAD_ESP-
> CALL_EBP
> > ASM_PFX(LoadUpdPointerToECX) ; ECX for UPD param+  LOAD_ECX
> > CALL_MMX  ASM_PFX(SecCarInit)   cmp       eax, 0   jnz
> TempRamInitExit
> > LOAD_ESP-  CALL_EBP  ASM_PFX(LoadUpdPointerToECX) ; ECX for UPD
> > param-  mov       edi, ecx                     ; Save UPD param
> to EDI for later code
> > use+  LOAD_ECX+  mov       edi, ecx                ; Save UPD
> param to EDI for
> > later code use   CALL_MMX  ASM_PFX(EstablishStackFsp)   cmp
> eax, 0
> > jnz       TempRamInitExit -  LXMMN     xmm6, eax, 3  ;Restore
> microcode
> > status if no CAR init error from ECX-SLOT 3 in xmm6.-  SXMMN     xmm6,
> 3,
> > edi  ;Save FSP-T UPD parameter pointer in ECX-SLOT 3 in xmm6.+
> > LOAD_UCODE_STATUS                 ; Restore microcode status if no
> CAR init
> > error from slot 1 in xmm5.  TempRamInitExit:   mov       bl,
> al                  ;
> > save al data in bldiff --git
a/IntelFsp2Pkg/FspSecCore/Ia32/FspHelper.nasm
> > b/IntelFsp2Pkg/FspSecCore/Ia32/FspHelper.nasm
> > index e3e1945473..3c63f6eea5 100644
> > --- a/IntelFsp2Pkg/FspSecCore/Ia32/FspHelper.nasm
> > +++ b/IntelFsp2Pkg/FspSecCore/Ia32/FspHelper.nasm
> > @@ -7,6 +7,8 @@
> >       SECTION .text +FSP_HEADER_IMGBASE_OFFSET    EQU   1Ch+
> global
> > ASM_PFX(FspInfoHeaderRelativeOff) ASM_PFX(FspInfoHeaderRelativeOff):
> > DD    0x12345678               ; This value must be patched by the
> build
> > script@@ -14,7 +16,7 @@ ASM_PFX(FspInfoHeaderRelativeOff):
> >  global ASM_PFX(AsmGetFspBaseAddress)
> > ASM_PFX(AsmGetFspBaseAddress):    call
> > ASM_PFX(AsmGetFspInfoHeader)-   add   eax, 0x1C+   add   eax,
> > FSP_HEADER_IMGBASE_OFFSET    mov   eax, dword [eax]    ret diff
> --git
> > a/IntelFsp2Pkg/FspSecCore/Ia32/SaveRestoreSseNasm.inc
> > b/IntelFsp2Pkg/FspSecCore/Ia32/SaveRestoreSseNasm.inc
> > index 4c321cbece..a222f2e376 100644
> > --- a/IntelFsp2Pkg/FspSecCore/Ia32/SaveRestoreSseNasm.inc
> > +++ b/IntelFsp2Pkg/FspSecCore/Ia32/SaveRestoreSseNasm.inc
> > @@ -1,6 +1,6 @@
> >
;---------------------------------------------------------------------------
--- ;-;
> Copyright (c)
> > 2015 - 2019, Intel Corporation. All rights reserved.<BR>+; Copyright (c)
> > 2015 - 2022, Intel Corporation. All rights reserved.<BR> ; SPDX-License-
> > Identifier: BSD-2-Clause-Patent ; ; Abstract:@@ -16,21 +16,21 @@
> >  ; ; Define SSE macros using SSE 4.1 instructions ; args 1:XMM, 2:IDX,
> > 3:REG-%macro SXMMN           3+%macro SXMMN    3
> pinsrd  %1, %3,
> > (%2 & 3)              %endmacro  ; ;args 1:XMM, 2:REG,
> 3:IDX ;-%macro
> > LXMMN           3+%macro LXMMN    3
> pextrd  %2, %1, (%3 & 3)
> > %endmacro %else ; ; Define SSE macros using SSE 2 instructions ; args
> > 1:XMM, 2:IDX, 3:REG-%macro SXMMN       3+%macro SXMMN    3
> > pinsrw  %1, %3, (%2 & 3) * 2              ror     %3, 16
> pinsrw  %1, %3,
> > (%2 & 3) * 2 + 1@@ -38,19 +38,19 @@
> >               %endmacro  ;-;args 1:XMM, 2:REG,  3:IDX+;args
> 1:XMM, 2:REG,
> > 3:IDX ; %macro LXMMN    3-             pshufd  %1, %1,
> ((0E4E4E4h >> (%3 * 2))
> > & 0FFh)+             pshufd  %1, %1, ((0E4E4E4h >> (%3 * 2))  &
> 0FFh)
> > movd    %2, %1-             pshufd  %1, %1,  ((0E4E4E4h >> (%3 *
> 2 + (%3 & 1) *
> > 4)) & 0FFh)+             pshufd  %1, %1, ((0E4E4E4h >> (%3 * 2 + (%3
> & 1) * 4))
> > & 0FFh)              %endmacro %endif  ;-; XMM7 to save/restore
> EBP, EBX, ESI,
> > EDI+; XMM7 to save/restore EBP - slot 0, EBX - slot 1, ESI - slot 2, EDI
- slot
> > 3 ;-%macro SAVE_REGS   0+%macro SAVE_REGS    0   SXMMN
> xmm7, 0,
> > ebp   SXMMN      xmm7, 1, ebx   SXMMN      xmm7, 2, esi@@
> -67,63 +67,67
> > @@
> >               %endmacro  ;-; XMM6 to save/restore EAX, EDX, ECX,
> ESP+; XMM6
> > to save/restore ESP - slot 0, EAX - slot 1, EDX - slot 2, ECX - slot 3
;-%macro
> > LOAD_EAX     0+%macro LOAD_ESP    0+  movd       esp,
> xmm6+
> > %endmacro++%macro SAVE_ESP    0+  SXMMN      xmm6, 0, esp+
> > %endmacro++%macro LOAD_EAX    0   LXMMN      xmm6, eax, 1
> > %endmacro -%macro SAVE_EAX     0+%macro SAVE_EAX    0
> SXMMN
> > xmm6, 1, eax              %endmacro -%macro LOAD_EDX
> 0+%macro
> > LOAD_EDX    0   LXMMN      xmm6, edx,
> 2              %endmacro -%macro
> > SAVE_EDX     0+%macro SAVE_EDX    0   SXMMN      xmm6, 2,
> edx
> > %endmacro -%macro SAVE_ECX     0-  SXMMN      xmm6, 3, ecx-
> > %endmacro--%macro LOAD_ECX     0+%macro LOAD_ECX    0
> LXMMN
> > xmm6, ecx, 3              %endmacro -%macro SAVE_ESP     0-
> SXMMN
> > xmm6, 0, esp+%macro SAVE_ECX    0+  SXMMN      xmm6, 3, ecx
> > %endmacro -%macro LOAD_ESP     0-  movd       esp,  xmm6-
> > %endmacro ;-; XMM5 for calling stack+; XMM5 slot 0 for calling stack ;
arg
> > 1:Entry %macro CALL_XMM       1              mov
> esi, %%ReturnAddress-
> > pslldq  xmm5, 4-%ifdef USE_SSE41_FLAG-             pinsrd  xmm5,
> esi, 0-
> > %else-             pinsrw  xmm5, esi, 0-             ror     esi,
> 16-             pinsrw
> > xmm5, esi, 1-%endif+             SXMMN   xmm5, 0, esi
> mov     esi,  %1
> > jmp     esi %%ReturnAddress:              %endmacro  %macro
> RET_XMM       0-
> > movd    esi, xmm5-             psrldq  xmm5, 4+
> LXMMN   xmm5, esi, 0
> > jmp     esi              %endmacro +;+; XMM5 slot 1 for uCode
> status+;+%macro
> > LOAD_UCODE_STATUS    0+  LXMMN      xmm5, eax, 1+
> > %endmacro++%macro SAVE_UCODE_STATUS    0+  SXMMN
> xmm5, 1,
> > eax+             %endmacro+ %macro ENABLE_SSE
> 0             ;             ; Initialize
> > floating point unitsdiff --git a/IntelFsp2Pkg/FspSecCore/SecFsp.h
> > b/IntelFsp2Pkg/FspSecCore/SecFsp.h
> > index d7a5976c12..693af29f20 100644
> > --- a/IntelFsp2Pkg/FspSecCore/SecFsp.h
> > +++ b/IntelFsp2Pkg/FspSecCore/SecFsp.h
> > @@ -79,7 +79,7 @@ AsmGetFspBaseAddress (
> >  /**   This interface gets FspInfoHeader pointer -  @return   FSP
> binary base
> > address.+  @return   FSP info header.  **/ UINTNdiff --git
> > a/IntelFsp2Pkg/FspSecCore/X64/FspHelper.nasm
> > b/IntelFsp2Pkg/FspSecCore/X64/FspHelper.nasm
> > index 122fa1d174..71624a3aad 100644
> > --- a/IntelFsp2Pkg/FspSecCore/X64/FspHelper.nasm
> > +++ b/IntelFsp2Pkg/FspSecCore/X64/FspHelper.nasm
> > @@ -7,10 +7,12 @@
> >      DEFAULT  REL     SECTION .text
> +FSP_HEADER_IMGBASE_OFFSET    EQU
> > 1Ch+ global ASM_PFX(AsmGetFspBaseAddress)
> > ASM_PFX(AsmGetFspBaseAddress):    call
> > ASM_PFX(AsmGetFspInfoHeader)-   add   rax, 0x1C+   add   rax,
> > FSP_HEADER_IMGBASE_OFFSET    mov   eax, [rax]    ret --
> > 2.35.3.windows.1
> >
> >
> >
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> [chasel.chiu@intel.com]
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> >