- TF-M - lists.trustedfirmware.org

Re: [TF-M] Move dual-cpu design document into code repo

by David Hu

Hi all, All the dual-cpu design documents are merged. Any further enhancement and simplification of the design is welcome! Best regards, Hu Ziji From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org> On Behalf Of David Hu via TF-M Sent: Thursday, January 16, 2020 10:10 AM To: tf-m(a)lists.trustedfirmware.org Cc: nd <nd(a)arm.com> Subject: [TF-M] Move dual-cpu design document into code repo Hi all, We are moving dual-cpu design documents from trustedfirmware.org wiki pages into TF-M code repo. We convert the documents to rst format, fix some typos, update them to align with latest implementation. The patches have been reviewed for several rounds in https://review.trustedfirmware.org/q/topic:%22dualcpu-docs%22+(status:open%…. The documents patches will be merged soon by this week. Please comment on the patches if there is any serious issue in the design. Any suggestion or improvement is still welcome after the patches are merged! Best regards, Hu Ziji

6 years

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Stuck in tfm_nspm_thread_entry() after "Initialize IPC SPM in handler mode"

by Andrej Butok

Hello, Just want to check if this is a known issue. During synchronization to the latest TFM, TFM applications are stuck in the exception handler tfm_nspm_thread_entry ()=>MemManage_Handler(). This issue has been caused by commits (3.1.2020): 1. Revision: 5248af2d7b86775364a0e131eb80ac0330bc81fb Message: Core: Use naked function for ns jumping 1. Revision: 490281df3736b11b62e25bc98d3e2c6e4e10478c Message: Core: Initialize IPC SPM in handler mode The previous commit is fully OK (committed 2.1.2020): Revision: 93dabfd3a35faf9ed88285e09997491e93cefa5c Message: Core: Trigger a system reset for programmer error The commits do not have any changes in the linker files and no changes in target files, only the common and ARMv8 code. It's good to know if this is something known or met before. Thank you, Andrej

6 years

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RC4 tag

by DeMars, Alan

Is there a target date for an RC4 tag on master? RC3 is getting stale. Alan

6 years

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Re: [TF-M] Last call for reviewing TIMER IRQ patches

by David Hu

Hi Alamy, In my very own opinion, it may require more time to discuss about patch 2706, since we are not clear why IRQ test was not able to run in Level 2. Other patches look fine to me. Best regards, Hu Ziji From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org> On Behalf Of Alamy Liu via TF-M Sent: Friday, January 17, 2020 5:00 PM To: tf-m(a)lists.trustedfirmware.org Subject: [TF-M] Last call for reviewing TIMER IRQ patches Dear all, This is the last call to review the following patches, or it would be merged soon. 2706<https://review.trustedfirmware.org/c/trusted-firmware-m/+/2706> Build: S-IRQ: remove restriction to build Core Positive test suite 3034<https://review.trustedfirmware.org/c/trusted-firmware-m/+/3034> Platform: PSoC64: S-IRQ: enable Core Test (CORE_TEST) 3033<https://review.trustedfirmware.org/c/trusted-firmware-m/+/3033> Platform: PSoC64: S-IRQ: enable Clocks for TCPWM0 Counters 3104<https://review.trustedfirmware.org/c/trusted-firmware-m/+/3104> Platform: PSoC64: S-IRQ: Initialize Interrupt for TFM_TIMER0_IRQ 3032<https://review.trustedfirmware.org/c/trusted-firmware-m/+/3032> Platform: PSoC64: S-IRQ: porting tfm_spm_hal_xxx_irq() 3031<https://review.trustedfirmware.org/c/trusted-firmware-m/+/3031> Platform: PSoC64: S-IRQ: timer interrupt handlers 3030<https://review.trustedfirmware.org/c/trusted-firmware-m/+/3030> Platform: PSoC64: S-IRQ: Add plat_test.c 3029<https://review.trustedfirmware.org/c/trusted-firmware-m/+/3029> Platform: PSoC64: S-IRQ: Add platform_irq.h 3028<https://review.trustedfirmware.org/c/trusted-firmware-m/+/3028> Platform: PSoC64: S-IRQ: Define CY_TCPWM0_TIMERx 3027<https://review.trustedfirmware.org/c/trusted-firmware-m/+/3027> Platform: PSoC64: S-IRQ: define TFM_PERIPHERAL_TIMER0 3026<https://review.trustedfirmware.org/c/trusted-firmware-m/+/3026> Platform: PSoC64: S-IRQ: compile TCPWM Counter driver 2687<https://review.trustedfirmware.org/c/trusted-firmware-m/+/2687> Test: IRQ: use defined name from platform Best Regards, Alamy

6 years

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Last call for reviewing TIMER IRQ patches

by Alamy Liu

Dear all, This is the last call to review the following patches, or it would be merged soon. 2706 <https://review.trustedfirmware.org/c/trusted-firmware-m/+/2706> Build: S-IRQ: remove restriction to build Core Positive test suite 3034 <https://review.trustedfirmware.org/c/trusted-firmware-m/+/3034> Platform: PSoC64: S-IRQ: enable Core Test (CORE_TEST) 3033 <https://review.trustedfirmware.org/c/trusted-firmware-m/+/3033> Platform: PSoC64: S-IRQ: enable Clocks for TCPWM0 Counters 3104 <https://review.trustedfirmware.org/c/trusted-firmware-m/+/3104> Platform: PSoC64: S-IRQ: Initialize Interrupt for TFM_TIMER0_IRQ 3032 <https://review.trustedfirmware.org/c/trusted-firmware-m/+/3032> Platform: PSoC64: S-IRQ: porting tfm_spm_hal_xxx_irq() 3031 <https://review.trustedfirmware.org/c/trusted-firmware-m/+/3031> Platform: PSoC64: S-IRQ: timer interrupt handlers 3030 <https://review.trustedfirmware.org/c/trusted-firmware-m/+/3030> Platform: PSoC64: S-IRQ: Add plat_test.c 3029 <https://review.trustedfirmware.org/c/trusted-firmware-m/+/3029> Platform: PSoC64: S-IRQ: Add platform_irq.h 3028 <https://review.trustedfirmware.org/c/trusted-firmware-m/+/3028> Platform: PSoC64: S-IRQ: Define CY_TCPWM0_TIMERx 3027 <https://review.trustedfirmware.org/c/trusted-firmware-m/+/3027> Platform: PSoC64: S-IRQ: define TFM_PERIPHERAL_TIMER0 3026 <https://review.trustedfirmware.org/c/trusted-firmware-m/+/3026> Platform: PSoC64: S-IRQ: compile TCPWM Counter driver 2687 <https://review.trustedfirmware.org/c/trusted-firmware-m/+/2687> Test: IRQ: use defined name from platform Best Regards, Alamy

6 years

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Re: [TF-M] [EXTERNAL] Re: out of tree build

by Kevin Peng

Hi, I'm planning to settle down the first three patches for tools change of this topic, before Christmas. Because personally think they are very mature and close to merge. (And I've still working on the reset patches). So if there are no more new review comments, I'll go with the current reviews and try to merge it. Best Regards, Kevin -----Original Message----- From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org> On Behalf Of Kevin Peng (Arm Technology China) via TF-M Sent: Friday, December 6, 2019 2:41 PM To: DeMars, Alan <ademars(a)ti.com>; 'tf-m(a)lists.trustedfirmware.org' <tf-m(a)lists.trustedfirmware.org> Cc: nd <nd(a)arm.com> Subject: Re: [TF-M] [EXTERNAL] Re: out of tree build I've created some patches for supporting this out of tree build: https://review.trustedfirmware.org/q/topic:%22out_of_tree_build%22+(status:… I firstly modified the tools/tfm_parse_manifest_list.py so that it can take customized secure partition manifest and list of files to generate and output the files to a specified directory. You can even "append" your manifests or files to generate to the default lists under tools. The format of the yamls are the same. The tfm_parse_manifest_list.py script will also create a CMakeLists.inc which contains all the paths of generated header. And the paths are added to include search path. Other CMake projects can include this file to find generated headers. And then the generated files are moved to a dedicated folder to solve the issue mentioned below (generated headers cannot be included). Finally, the build system is able to call the parse tool to generate files in build time(can be disabled) and use the new generated files to build. You can set the optional arguments for the parse tool by setting CMake arguments: cmake -DTFM_MANIFEST(_APPEND)=some_manifest -DTFM_GEN_LIST(_APPEND)=some_generated_file -DTFM_GEN_DIR=... -G'Unix Makefiles' -DTARGET_PLATFORM=AN521 -D COMPILER=ARMCLANG -DPROJ_CONFIG=`readlink -f ConfigXXX.cmake` TFM_ROOT cmake –build Or you can pre-generate the files, disable build time generation and tell cmake the output directory only. Comments and discussions are welcome. Best Regards, Kevin -----Original Message----- From: DeMars, Alan <ademars(a)ti.com> Sent: Saturday, November 23, 2019 12:33 AM To: Kevin Peng (Arm Technology China) <Kevin.Peng(a)arm.com> Cc: 'tf-m(a)lists.trustedfirmware.org' <tf-m(a)lists.trustedfirmware.org> Subject: RE: [TF-M] [EXTERNAL] Re: out of tree build In our use case, we added complete paths to the build area's corresponding directory to the embedded include paths and removed the default generated content from our git repo. Consequently only the newly generated content is found, wherever it happens to be placed. Alan -----Original Message----- From: TF-M [mailto:tf-m-bounces@lists.trustedfirmware.org] On Behalf Of Kevin Peng (Arm Technology China) via TF-M Sent: Friday, November 22, 2019 2:15 AM To: tf-m(a)lists.trustedfirmware.org Cc: nd Subject: Re: [TF-M] [EXTERNAL] Re: out of tree build Hi all, I'm having issues on supporting the out of tree build. So I'd like to propose some additional changes. What does the out of tree build currently support is that: The user uses the tfm_parse_manifest_list.py with the custom manifests to generate the customized files to a directory out of TF-M. And the TF-M build system uses the customized files rather than the pre-generated ones in the TF-M for building. The problem is that some of the source files include the generated headers using the relative path to where the source itself is. And the directory of the source file is always searched first. This makes it impossible to use the generated files outside TF-M even the custom output directory is added to searching list. So I suggest to put the generated files to a dedicated directory in TF-M. Then for the default build, add the directory and its subdirectories to the search list for headers. For out of tree build, use the specified directory and its subdirectories instead. Then there would only one header file with the same name in all the directories for searching headers. Any concerns, thoughts or suggestions? Best Regards, Kevin -----Original Message----- From: Kevin Peng (Arm Technology China) Sent: Friday, November 22, 2019 3:45 PM To: DeMars, Alan <ademars(a)ti.com>; tf-m(a)lists.trustedfirmware.org Cc: nd <nd(a)arm.com> Subject: RE: [EXTERNAL] Re: [TF-M] out of tree build Hi Alan, I've created a patch for the tfm_parse_manifest_list.py as the first step for the out of tree build support: https://review.trustedfirmware.org/c/trusted-firmware-m/+/2606 The changes for build system is ongoing. The functionality changes for the tfm_parse_manifest_list.py is the same as your version. Please have a review and help verify it if possible. Comments from anyone else are also welcome. Best Regards, Kevin -----Original Message----- From: Kevin Peng (Arm Technology China) Sent: Thursday, November 14, 2019 3:31 PM To: DeMars, Alan <ademars(a)ti.com> Cc: tf-m(a)lists.trustedfirmware.org; nd <nd(a)arm.com> Subject: RE: [EXTERNAL] Re: [TF-M] out of tree build OK. It's much clearer for me now. Thanks. Best Regards, Kevin -----Original Message----- From: DeMars, Alan <ademars(a)ti.com> Sent: Thursday, November 14, 2019 10:34 AM To: Kevin Peng (Arm Technology China) <Kevin.Peng(a)arm.com> Cc: tf-m(a)lists.trustedfirmware.org; nd <nd(a)arm.com> Subject: Re: [EXTERNAL] Re: [TF-M] out of tree build 1) I verified the tfm_parse_manifest.py script changes using the master branch’s version of the tfm_manifest_list.yaml and tfm_generated_file_list.yaml files. 2) Yes, I’m building using the unmodified master branch’s cmake build system. 3) Just as all other build artifacts are placed in the user’s build directory and NOT in the source tree, the generated files should also. Otherwise, the user is required to update the source tree’s tfm_manifest_list.yaml and tfm_generated_file_list.yaml files to build a custom SPE, with the generated files also ending up in the source tree. The files necessary to create a custom SPE should not be kept in the source tree. Nor should the generated content be inserted in the source tree. This creates headaches for maintaining the original source tree. Alan > On Nov 13, 2019, at 1:57 AM, Kevin Peng (Arm Technology China) via TF-M <tf-m(a)lists.trustedfirmware.org> wrote: > > Hi Alan, > > I checked your modified tfm_parse_manifest_list.py. > It basically uses the input tfm_manifest_list.yaml and tfm_generated_file_list.yaml to generate the TF-M auto generated files to the third input. > > I'm sorry I was not in the workshop. So I have some questions. > 1. Do you have your own tfm_manifest_list.yaml and tfm_generated_file_list.yaml that is not upstreamed in TF-M? > 2. Are you using the TF-M provided CMake build system? > 3. Do you only need the files generated by tfm_parse_manifest_list.py to be out of the TF-M source directory? > > Could you provide some details about your requirements. Thanks. > > Best Regards, > Kevin > > -----Original Message----- > From: Kevin Peng (Arm Technology China) > Sent: Wednesday, November 13, 2019 10:27 AM > To: tf-m(a)lists.trustedfirmware.org > Cc: nd <nd(a)arm.com> > Subject: RE: out of tree build > > Hi Alan, > > I'm following on this and will get you updated on any progress. > > Best Regards, > Kevin > > -----Original Message----- > From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org> On Behalf Of DeMars, Alan via TF-M > Sent: Thursday, November 7, 2019 12:42 PM > To: Abhishek Pandit <Abhishek.Pandit(a)arm.com> > Cc: 'tf-m(a)lists.trustedfirmware.org' <tf-m(a)lists.trustedfirmware.org> > Subject: Re: [TF-M] out of tree build > > Trying again after renaming tfm_parse_manifest_list.py to tfm_parse_manifest_list.txt so it wouldn't get deleted. > --- > > With the attached modified secure_fw/CMakeLists.txt and tools/tfm_parse_manifest_list.py files, I am able to redirect the generated files using the following command line: > > python3 <full_path_to_your>/tfm_parse_manifest_list.py <full_path_to_your>/tfm_manifest_list.yaml <full_path_to_your>/tfm_generated_file_list.yaml <full_path_to_your>/<build_dir> > > And then build the ConfigCoreIPC artifacts within <your_build_dir> using the following cmake line: > > cmake -G"Unix Makefiles" -DPROJ_CONFIG=`readlink -f ../configs/ConfigCoreIPC.cmake` -DREMOTE_GEN_DIR=<full_path_to_your><build_dir> -DTARGET_PLATFORM=AN521 -DCOMPILER=GNUARM ../ > > The changes to tfm_parse_manifest_list.py are backward compatible with the standard usage. > > Alan > > > -----Original Message----- > From: TF-M [mailto:tf-m-bounces@lists.trustedfirmware.org] On Behalf Of DeMars, Alan via TF-M > Sent: Monday, November 4, 2019 4:36 PM > To: Abhishek Pandit; tf-m(a)lists.trustedfirmware.org > Subject: [EXTERNAL] Re: [TF-M] out of tree build > > Abishek, > > Yes, we have modified tfm_gen.py and tfm_parse_manifest_list.py to support redirecting the destination of the generated template files into a command line provided destination build directory. > A corresponding change to our platform's platform/ext/xyz.cmake file was also required to add the path to the root of the build directory to the embedded_include_directories() list as well as the paths to the generated linker command files. > > I was not planning to provide these changes as a patch for review as I am very unsure of the applicability of this to other platforms. Also, I was fairly certain that given my very poor understanding of the CMake build system, my approach to the problem was not utilizing features present in CMake that would make the job simpler and more extensible. > > Since the topic came up at the conference and you already seemed willing to address the out-of-tree build problem that the templates lead to, I assumed you folks would find a simple and elegant solution that would save me the embarrassment of exposing my lack of CMake expertise. > > Alan > > -----Original Message----- > From: Abhishek Pandit [mailto:Abhishek.Pandit@arm.com] > Sent: Monday, November 4, 2019 3:08 PM > To: DeMars, Alan; tf-m(a)lists.trustedfirmware.org > Subject: [EXTERNAL] RE: out of tree build > > Hi Alan, > Not sure if I remember the exact detail from the workshop last week, but did you mention that you have a prototype for this? If so, are you planning to push a patch for review? > Thanks, > Abhishek > > -----Original Message----- > From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org> On Behalf Of DeMars, Alan via TF-M > Sent: 01 November 2019 16:29 > To: 'tf-m(a)lists.trustedfirmware.org' <tf-m(a)lists.trustedfirmware.org> > Subject: [TF-M] out of tree build > > Please modify the template generators to support out of tree build, and modify the CMake files to add the necessary include paths so that the files that include the template-generated files can find them. > > Alan > -- > TF-M mailing list > TF-M(a)lists.trustedfirmware.org > https://lists.trustedfirmware.org/mailman/listinfo/tf-m > IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you. > -- > TF-M mailing list > TF-M(a)lists.trustedfirmware.org > https://lists.trustedfirmware.org/mailman/listinfo/tf-m > -- > TF-M mailing list > TF-M(a)lists.trustedfirmware.org > https://lists.trustedfirmware.org/mailman/listinfo/tf-m -- TF-M mailing list TF-M(a)lists.trustedfirmware.org https://lists.trustedfirmware.org/mailman/listinfo/tf-m -- TF-M mailing list TF-M(a)lists.trustedfirmware.org https://lists.trustedfirmware.org/mailman/listinfo/tf-m

6 years

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Move dual-cpu design document into code repo

by David Hu

Hi all, We are moving dual-cpu design documents from trustedfirmware.org wiki pages into TF-M code repo. We convert the documents to rst format, fix some typos, update them to align with latest implementation. The patches have been reviewed for several rounds in https://review.trustedfirmware.org/q/topic:%22dualcpu-docs%22+(status:open%…. The documents patches will be merged soon by this week. Please comment on the patches if there is any serious issue in the design. Any suggestion or improvement is still welcome after the patches are merged! Best regards, Hu Ziji

6 years

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Re: [TF-M] [Call for cygwin volunteers] Remove the mbed-crypto building workaround

by Ken Liu

From the feedbacks till now, no fault case is reported, let merge this patch. If someone met problem while building please reply in the mailing list. /Ken From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org> On Behalf Of Ken Liu via TF-M Sent: Thursday, January 9, 2020 9:32 AM To: tf-m(a)lists.trustedfirmware.org Cc: nd <nd(a)arm.com> Subject: Re: [TF-M] [Call for cygwin volunteers] Remove the mbed-crypto building workaround Got 3 feedbacks till now all reports no problem. I am going to merge this one before end of today. /Ken From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org<mailto:tf-m-bounces@lists.trustedfirmware.org>> On Behalf Of Ken Liu via TF-M Sent: Monday, January 6, 2020 1:56 PM To: tf-m(a)lists.trustedfirmware.org<mailto:tf-m@lists.trustedfirmware.org> Cc: nd <nd(a)arm.com<mailto:nd@arm.com>> Subject: Re: [TF-M] [Call for cygwin volunteers] Remove the mbed-crypto building workaround Thanks for the feedback, let me take a note. /Ken From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org<mailto:tf-m-bounces@lists.trustedfirmware.org>> On Behalf Of Qixiang Xu via TF-M Sent: Monday, January 6, 2020 1:49 PM To: tf-m(a)lists.trustedfirmware.org<mailto:tf-m@lists.trustedfirmware.org> Subject: Re: [TF-M] [Call for cygwin volunteers] Remove the mbed-crypto building workaround Ken, I have cherry picked the patch and tested it on Cygwin: $ cmake --version cmake version 3.11.1 CMake suite maintained and supported by Kitware (kitware.com/cmake). The patch works and no issue found. Best Regards, Qixiang Xu From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org<mailto:tf-m-bounces@lists.trustedfirmware.org>> On Behalf Of Ken Liu via TF-M Sent: Monday, January 6, 2020 11:00 AM To: tf-m(a)lists.trustedfirmware.org<mailto:tf-m@lists.trustedfirmware.org> Cc: nd <nd(a)arm.com<mailto:nd@arm.com>> Subject: [TF-M] [Call for cygwin volunteers] Remove the mbed-crypto building workaround Hi, I create a patch for removing the workaround for mbed-crypto building: https://review.trustedfirmware.org/c/trusted-firmware-m/+/3022 We tried on cmake 3.7 and 3.10 with cygwin and it works; can some Cygwin/mingw user pick this patch and test if it could work in your side? Thanks for your contribution 😊 /Ken IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you.

6 years

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Invitation: TF-M Tech Forum @ Thu 23 Jan 2020 17:00 - 18:00 (GMT) (tf-m@lists.trustedfirmware.org)

by Bill Fletcher

You have been invited to the following event. Title: TF-M Tech Forum This is an open forum for anyone to participate and it is not restricted to Trusted Firmware project members. It will operate under the guidance of the TF TSC. Feel free to forward it to colleagues. ────────── Bill Fletcher is inviting you to a scheduled Zoom meeting. Join Zoom Meeting https://zoom.us/j/5810428000 Meeting ID: 581 042 8000 One tap mobile +16465588656,,5810428000# US (New York) +16699009128,,5810428000# US (San Jose) Dial by your location +1 646 558 8656 US (New York) +1 669 900 9128 US (San Jose) 877 853 5247 US Toll-free 888 788 0099 US Toll-free Meeting ID: 581 042 8000 Find your local number: https://zoom.us/u/aerUYXPhSL ────────── When: Thu 23 Jan 2020 17:00 – 18:00 United Kingdom Time Where: https://zoom.us/j/5810428000 Calendar: tf-m(a)lists.trustedfirmware.org Who: (Guest list has been hidden at organiser's request) Event details: https://www.google.com/calendar/event?action=VIEW&eid=MzB0czdyMXVlMXBpaGY5M… Invitation from Google Calendar: https://www.google.com/calendar/ You are receiving this courtesy email at the account tf-m(a)lists.trustedfirmware.org because you are an attendee of this event. To stop receiving future updates for this event, decline this event. Alternatively, you can sign up for a Google Account at https://www.google.com/calendar/ and control your notification settings for your entire calendar. Forwarding this invitation could allow any recipient to send a response to the organiser and be added to the guest list, invite others regardless of their own invitation status or to modify your RSVP. Learn more at https://support.google.com/calendar/answer/37135#forwarding

6 years

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Re: [TF-M] T398: Update to IAR support

by Karl Zhang

Hi Thomas Thanks for the update, I go through your new patches initially and give some first review comments. Besides, I am trying to have a build by IAR myself, and do a more detail review later. Please be aware, the concept for review now is to make sure the new compiler can work on specified platform and won't block the current TFM process. Since the new year holiday coming soon in China, my response may slow before 1st Feb. Sorry about that. Thanks Karl From: TF-M <tf-m-bounces(a)lists.trustedfirmware.org> On Behalf Of Thomas T?rnblom via TF-M Sent: Tuesday, January 14, 2020 16:38 To: tf-m(a)lists.trustedfirmware.org Subject: [TF-M] T398: Update to IAR support I have just pushed the latest commits for the source cleanup and IAR integration. https://review.trustedfirmware.org/c/trusted-firmware-m/+/3127/1 Please review. Thanks, Thomas -- Thomas Tï¿½rnblom, Product Engineer IAR Systems AB Box 23051, Strandbodgatan 1 SE-750 23 Uppsala, SWEDEN Mobile: +46 76 180 17 80 Fax: +46 18 16 78 01 E-mail: thomas.tornblom(a)iar.com<mailto:thomas.tornblom@iar.com> Website: www.iar.com<http://www.iar.com> Twitter: www.twitter.com/iarsystems<http://www.twitter.com/iarsystems>

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