Hi Mike, Liming, The latest NASM version is version 2.15.05. The CET instructions is supported since NASM version 2.15.01, it is released at 2020-06-27. Do you think we need to request everyone to update the NASM tool now? Or could I still use macros with DB for CET instructions in my patch ? BR Sheng Wei
> -----Original Message----- > From: gaoliming <gaolim...@byosoft.com.cn> > Sent: 2021年2月2日 10:44 > To: Kinney, Michael D <michael.d.kin...@intel.com>; Sheng, W > <w.sh...@intel.com>; devel@edk2.groups.io > Cc: Liu, Zhiguang <zhiguang....@intel.com>; Yao, Jiewen > <jiewen....@intel.com>; 'Andrew Fish' <af...@apple.com>; 'Laszlo Ersek' > <ler...@redhat.com> > Subject: 回复: [PATCH] MdePkg/Include: Add CET instructions to Nasm.inc > > Mike and Sheng: > Linux or Mac OS includes the pre-built nasm. Their nasm version may be old. > Can you evaluate the impact to update nasm version? > > Thanks > Liming > > -----邮件原件----- > > 发件人: Kinney, Michael D <michael.d.kin...@intel.com> > > 发送时间: 2021年1月30日 1:23 > > 收件人: Sheng, W <w.sh...@intel.com>; devel@edk2.groups.io; Kinney, > > Michael D <michael.d.kin...@intel.com> > > 抄送: Liming Gao <gaolim...@byosoft.com.cn>; Liu, Zhiguang > > <zhiguang....@intel.com>; Yao, Jiewen <jiewen....@intel.com> > > 主题: RE: [PATCH] MdePkg/Include: Add CET instructions to Nasm.inc > > > > Sheng, > > > > The following version of the NASM documentation shows support for > > these instructions. > > > > https://nasm.us/doc/nasmdocb.html > > > > Do we need to increase the min NASM version requirements for EDK II to > > avoid adding macros with DB? > > > > Thanks, > > > > Mike > > > > > -----Original Message----- > > > From: Sheng, W <w.sh...@intel.com> > > > Sent: Thursday, January 28, 2021 6:35 PM > > > To: devel@edk2.groups.io > > > Cc: Kinney, Michael D <michael.d.kin...@intel.com>; Liming Gao > > <gaolim...@byosoft.com.cn>; Liu, Zhiguang > > > <zhiguang....@intel.com>; Yao, Jiewen <jiewen....@intel.com> > > > Subject: [PATCH] MdePkg/Include: Add CET instructions to Nasm.inc > > > > > > This is to add instruction SAVEPREVSSP, CLRSSBSY and RSTORSSP_RAX in > > Nasm, > > > because these instructions are not supported yet. > > > > > > REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3192 > > > > > > Signed-off-by: Sheng Wei <w.sh...@intel.com> > > > Cc: Michael D Kinney <michael.d.kin...@intel.com> > > > Cc: Liming Gao <gaolim...@byosoft.com.cn> > > > Cc: Zhiguang Liu <zhiguang....@intel.com> > > > Cc: Jiewen Yao <jiewen....@intel.com> > > > --- > > > MdePkg/Include/Ia32/Nasm.inc | 14 +++++++++++++- > > > MdePkg/Include/X64/Nasm.inc | 14 +++++++++++++- > > > 2 files changed, 26 insertions(+), 2 deletions(-) > > > > > > diff --git a/MdePkg/Include/Ia32/Nasm.inc > > b/MdePkg/Include/Ia32/Nasm.inc > > > index 31ce861f1e..9c1b7796ea 100644 > > > --- a/MdePkg/Include/Ia32/Nasm.inc > > > +++ b/MdePkg/Include/Ia32/Nasm.inc > > > @@ -1,6 +1,6 @@ > > > > > > ;------------------------------------------------------------------- > > > ----------- > > > ; > > > -; Copyright (c) 2019, Intel Corporation. All rights reserved.<BR> > > > +; Copyright (c) 2019 - 2021, Intel Corporation. All rights > > > +reserved.<BR> > > > ; SPDX-License-Identifier: BSD-2-Clause-Patent ; ; Abstract: > > > @@ -20,3 +20,15 @@ > > > %macro INCSSP_EAX 0 > > > DB 0xF3, 0x0F, 0xAE, 0xE8 > > > %endmacro > > > + > > > +%macro SAVEPREVSSP 0 > > > + DB 0xF3, 0x0F, 0x01, 0xEA > > > +%endmacro > > > + > > > +%macro CLRSSBSY_EAX 0 > > > + DB 0x67, 0xF3, 0x0F, 0xAE, 0x30 %endmacro > > > + > > > +%macro RSTORSSP_EAX 0 > > > + DB 0x67, 0xF3, 0x0F, 0x01, 0x28 %endmacro > > > diff --git a/MdePkg/Include/X64/Nasm.inc > > b/MdePkg/Include/X64/Nasm.inc > > > index 42412735ea..c5189982bb 100644 > > > --- a/MdePkg/Include/X64/Nasm.inc > > > +++ b/MdePkg/Include/X64/Nasm.inc > > > @@ -1,6 +1,6 @@ > > > > > > ;------------------------------------------------------------------- > > > ----------- > > > ; > > > -; Copyright (c) 2019, Intel Corporation. All rights reserved.<BR> > > > +; Copyright (c) 2019 - 2021, Intel Corporation. All rights > > > +reserved.<BR> > > > ; SPDX-License-Identifier: BSD-2-Clause-Patent ; ; Abstract: > > > @@ -20,3 +20,15 @@ > > > %macro INCSSP_RAX 0 > > > DB 0xF3, 0x48, 0x0F, 0xAE, 0xE8 %endmacro > > > + > > > +%macro SAVEPREVSSP 0 > > > + DB 0xF3, 0x0F, 0x01, 0xEA > > > +%endmacro > > > + > > > +%macro CLRSSBSY_RAX 0 > > > + DB 0xF3, 0x0F, 0xAE, 0x30 > > > +%endmacro > > > + > > > +%macro RSTORSSP_RAX 0 > > > + DB 0xF3, 0x0F, 0x01, 0x28 > > > +%endmacro > > > -- > > > 2.16.2.windows.1 > > -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#71045): https://edk2.groups.io/g/devel/message/71045 Mute This Topic: https://groups.io/mt/80306735/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
