- TF-A - lists.trustedfirmware.org

Issue with adding ssh key to review server

by sparlane＠gmail.com

Hi All, Sorry if this is the wrong list, I'm trying to submit a patch for tf-a and I'm currently unable to add an ssh key or generate an https password to use for authentication. Perhaps I am doing something wrong? I'm trying to use the settings here: https://review.trustedfirmware.org/settings/#HTTPCredentials to add an ssh key and I get the error message "Error 500 (Server Error): Internal server error Endpoint: /accounts/self/sshkeys" Any help is greatly appreciated. Thanks, Scott (sparlane)

4 years, 1 month

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Updated invitation with note: TF-A Tech Forum @ Thu Sep 22, 2022 4pm - 5pm (BST) (tf-a@lists.trustedfirmware.org)

by joanna.farley＠arm.com

This event has been updated with a note: "We have a proposed subject for this TF-A Tech Forum. Joanna" Changed: description TF-A Tech Forum Thursday Sep 22, 2022 ⋅ 4pm – 5pm United Kingdom Time Proposed session for this Tech Forum will be an update to Firmware Update capabilities.More details to follow.....------------------------We run an open technical forum call 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 this invite to colleagues. Invites are via the TF-A mailing list and also published on the Trusted Firmware website. Details are here: https://www.trustedfirmware.org/meetings/tf-a-technical-forum/Tr… Firmware is inviting you to a scheduled Zoom meeting.Join Zoom Meetinghttps://zoom.us/j/9159704974Meeting ID: 915 970 4974One tap mobile+16465588656,,9159704974# US (New York)+16699009128,,9159704974# 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-freeMeeting ID: 915 970 4974Find your local number: https://zoom.us/u/ad27hc6t7h   Guests marek.bykowski(a)gmail.com okash.khawaja(a)gmail.com tf-a(a)lists.trustedfirmware.org View all guest info https://calendar.google.com/calendar/event?action=VIEW&eid=NWlub3Ewdm1tMmk1… Reply for tf-a(a)lists.trustedfirmware.org and view more details https://calendar.google.com/calendar/event?action=VIEW&eid=NWlub3Ewdm1tMmk1… Your attendance is optional. ~~//~~ Invitation from Google Calendar: https://calendar.google.com/calendar/ You are receiving this email because you are an attendee on the event. To stop receiving future updates for this event, decline this event. Forwarding this invitation could allow any recipient to send a response to the organizer, be added to the guest list, invite others regardless of their own invitation status, or modify your RSVP. Learn more https://support.google.com/calendar/answer/37135#forwarding

4 years, 1 month

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Updated invitation with note: TF-A Tech Forum @ Thu Sep 8, 2022 4pm - 5pm (BST) (tf-a@lists.trustedfirmware.org)

by joanna.farley＠arm.com

This event has been updated with a note: "Updated Agenda for 8th September session." Changed: description TF-A Tech Forum Thursday Sep 8, 2022 ⋅ 4pm – 5pm United Kingdom Time The plan is to use this Tech Forum session to discuss the LTS proposal and review comments received.See the TF-A Mailing list for details of the proposal and review comments: https://lists.trustedfirmware.org/archives/list/tf-a@lists.t… will be led by Okash Khawaja and Varun Wadekar.ThanksJoanna Farley-------------------------------We run an open technical forum call 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 this invite to colleagues. Invites are via the TF-A mailing list and also published on the Trusted Firmware website. Details are here: https://www.trustedfirmware.org/meetings/tf-a-technical-forum/Tr… Firmware is inviting you to a scheduled Zoom meeting.Join Zoom Meetinghttps://zoom.us/j/9159704974Meeting ID: 915 970 4974One tap mobile+16465588656,,9159704974# US (New York)+16699009128,,9159704974# 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-freeMeeting ID: 915 970 4974Find your local number: https://zoom.us/u/ad27hc6t7h   Guests marek.bykowski(a)gmail.com okash.khawaja(a)gmail.com tf-a(a)lists.trustedfirmware.org View all guest info https://calendar.google.com/calendar/event?action=VIEW&eid=NWlub3Ewdm1tMmk1… Reply for tf-a(a)lists.trustedfirmware.org and view more details https://calendar.google.com/calendar/event?action=VIEW&eid=NWlub3Ewdm1tMmk1… Your attendance is optional. ~~//~~ Invitation from Google Calendar: https://calendar.google.com/calendar/ You are receiving this email because you are an attendee on the event. To stop receiving future updates for this event, decline this event. Forwarding this invitation could allow any recipient to send a response to the organizer, be added to the guest list, invite others regardless of their own invitation status, or modify your RSVP. Learn more https://support.google.com/calendar/answer/37135#forwarding

4 years, 1 month

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How to trap aborts caused by TZASC?

by Chenxu Wang

Hi all, I want to test how to trap the aborts caused by TZASC. For example, when I use NS-EL1 (e.g., OS) to access a Secure region (configured in TZASC), it will generate an abort. But I am not sure how to trap it. I think it is an external abort, so I enable the SCR_EL3.EA=1 and write a handler. However I cannot trap it. Also, my other handlers in EL3 still do not report the abort. Thus, how can I trap a TZASC abort? If I want to route it into EL3 to handle, how can I do it? Sincerely, WANG Chenxu

4 years, 1 month

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New Defects reported by Coverity Scan for ARM-software/arm-trusted-firmware

by scan-admin＠coverity.com

Hi, Please find the latest report on new defect(s) introduced to ARM-software/arm-trusted-firmware found with Coverity Scan. 3 new defect(s) introduced to ARM-software/arm-trusted-firmware found with Coverity Scan. 1 defect(s), reported by Coverity Scan earlier, were marked fixed in the recent build analyzed by Coverity Scan. New defect(s) Reported-by: Coverity Scan Showing 3 of 3 defect(s) ** CID 380536: Control flow issues (NO_EFFECT) /bl32/tsp/tsp_ffa_main.c: 220 in test_memory_send() ________________________________________________________________________________________________________ *** CID 380536: Control flow issues (NO_EFFECT) /bl32/tsp/tsp_ffa_main.c: 220 in test_memory_send() 214 ERROR("Failed [%u] mmap_add_dynamic_region %u (%lx) (%lx) (%x)!\n", 215 i, ret, 216 (uint64_t)composite->address_range_array[i].address, 217 size, mem_attrs); 218 219 /* Remove mappings created in this transaction. */ >>> CID 380536: Control flow issues (NO_EFFECT) >>> This greater-than-or-equal-to-zero comparison of an unsigned value is always true. "i >= 0U". 220 for (i--; i >= 0U; i--) { 221 ret = mmap_remove_dynamic_region( 222 (uint64_t)ptr, 223 composite->address_range_array[i].page_count * PAGE_SIZE); 224 225 if (ret != 0) { ** CID 380535: Null pointer dereferences (REVERSE_INULL) /bl32/tsp/ffa_helpers.c: 154 in memory_retrieve() ________________________________________________________________________________________________________ *** CID 380535: Null pointer dereferences (REVERSE_INULL) /bl32/tsp/ffa_helpers.c: 154 in memory_retrieve() 148 uint32_t *total_length) 149 { 150 smc_args_t ret; 151 uint32_t descriptor_size; 152 struct ffa_mtd *memory_region = (struct ffa_mtd *)mb->tx_buffer; 153 >>> CID 380535: Null pointer dereferences (REVERSE_INULL) >>> Null-checking "mb" suggests that it may be null, but it has already been dereferenced on all paths leading to the check. 154 if (retrieved == NULL || mb == NULL) { 155 ERROR("Invalid parameters!\n"); 156 return false; 157 } 158 159 /* Clear TX buffer. */ ** CID 380534: API usage errors (SWAPPED_ARGUMENTS) ________________________________________________________________________________________________________ *** CID 380534: API usage errors (SWAPPED_ARGUMENTS) /bl32/tsp/tsp_ffa_main.c: 476 in handle_partition_message() 470 471 default: 472 INFO("TSP Tests: Unknown request ID %d--\n", (int) arg3); 473 } 474 475 /* Swap the sender and receiver in the response. */ >>> CID 380534: API usage errors (SWAPPED_ARGUMENTS) >>> The positions of arguments in the call to "ffa_msg_send_direct_resp" do not match the ordering of the parameters: * "receiver" is passed to "sender". * "sender" is passed to "receiver". 476 return ffa_msg_send_direct_resp(receiver, sender, status, 0, 0, 0, 0); 477 } 478 479 /******************************************************************************* 480 * This function implements the event loop for handling FF-A ABI invocations. 481 ******************************************************************************/ ________________________________________________________________________________________________________ To view the defects in Coverity Scan visit, https://u15810271.ct.sendgrid.net/ls/click?upn=HRESupC-2F2Czv4BOaCWWCy7my0P…

4 years, 1 month

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Canceled event with note: TF-A Tech Forum @ Thu Aug 25, 2022 4pm - 5pm (BST) (tf-a@lists.trustedfirmware.org)

by joanna.farley＠arm.com

This event has been canceled with a note: "Apologies for the short notice. We have no topic this week and some key folks are out on vacations. I'm hoping the Techforum on the 8th September can be a followup LTS discussion on the proposal submitted to the Mailing list. I'll formally organise that for the 8th next week." TF-A Tech Forum Thursday Aug 25, 2022 ⋅ 4pm – 5pm United Kingdom Time We run an open technical forum call 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 this invite to colleagues. Invites are via the TF-A mailing list and also published on the Trusted Firmware website. Details are here: https://www.trustedfirmware.org/meetings/tf-a-technical-forum/Tr… Firmware is inviting you to a scheduled Zoom meeting.Join Zoom Meetinghttps://zoom.us/j/9159704974Meeting ID: 915 970 4974One tap mobile+16465588656,,9159704974# US (New York)+16699009128,,9159704974# 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-freeMeeting ID: 915 970 4974Find your local number: https://zoom.us/u/ad27hc6t7h   Guests marek.bykowski(a)gmail.com okash.khawaja(a)gmail.com tf-a(a)lists.trustedfirmware.org ~~//~~ Invitation from Google Calendar: https://calendar.google.com/calendar/ You are receiving this email because you are an attendee on the event. To stop receiving future updates for this event, decline this event. Forwarding this invitation could allow any recipient to send a response to the organizer, be added to the guest list, invite others regardless of their own invitation status, or modify your RSVP. Learn more https://support.google.com/calendar/answer/37135#forwarding

4 years, 1 month

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Does FVP and current TF-A support the SVE/SVE2 programming?

by Chenxu Wang

Hi all, I want to perform some encryption/decryption in TF-A. I find that Arm provides some hardware-assisted instructions for encryption and integrity verification (e.g., AESE, SHA1...). But it seems that FVP does not support them. I recently read Armv9 and know that Arm purposes SVE/SVE2 to accelerate the matrix computation. It seems that it can be another approach to accelerate the encryption. Since I am a novice in Armv9 (and in FVP), thus, I want to ask: (1) Do FVP and TF-A support the SVE? If yes, how to configure it? (2) Do FVP and TF-A support the SVE2? If yes, how to configure it? Looking forward to your reply! Sincerely, WANG Chenxu

4 years, 1 month

2
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New Defects reported by Coverity Scan for ARM-software/arm-trusted-firmware

by scan-admin＠coverity.com

Hi, Please find the latest report on new defect(s) introduced to ARM-software/arm-trusted-firmware found with Coverity Scan. 3 new defect(s) introduced to ARM-software/arm-trusted-firmware found with Coverity Scan. 1 defect(s), reported by Coverity Scan earlier, were marked fixed in the recent build analyzed by Coverity Scan. New defect(s) Reported-by: Coverity Scan Showing 3 of 3 defect(s) ** CID 380533: Null pointer dereferences (NULL_RETURNS) /services/std_svc/spm/el3_spmc/spmc_shared_mem.c: 283 in spmc_shmem_obj_validate_id() ________________________________________________________________________________________________________ *** CID 380533: Null pointer dereferences (NULL_RETURNS) /services/std_svc/spm/el3_spmc/spmc_shared_mem.c: 283 in spmc_shmem_obj_validate_id() 277 size_t emad_size; 278 struct ffa_emad_v1_0 *emad; 279 280 emad = spmc_shmem_obj_get_emad(desc, i, 281 MAKE_FFA_VERSION(1, 1), 282 &emad_size); >>> CID 380533: Null pointer dereferences (NULL_RETURNS) >>> Dereferencing "emad", which is known to be "NULL". 283 if (sp_id == emad->mapd.endpoint_id) { 284 found = true; 285 break; 286 } 287 } 288 return found; ** CID 380532: Insecure data handling (TAINTED_SCALAR) ________________________________________________________________________________________________________ *** CID 380532: Insecure data handling (TAINTED_SCALAR) /services/std_svc/spm/el3_spmc/spmc_shared_mem.c: 1754 in spmc_ffa_mem_relinquish() 1748 req->endpoint_array[0], sp_ctx->sp_id); 1749 ret = FFA_ERROR_INVALID_PARAMETER; 1750 goto err_unlock_all; 1751 } 1752 1753 /* Validate the caller is a valid participant. */ >>> CID 380532: Insecure data handling (TAINTED_SCALAR) >>> Passing tainted expression "obj->desc.emad_count" to "spmc_shmem_obj_validate_id", which uses it as a loop boundary. 1754 if (!spmc_shmem_obj_validate_id(&obj->desc, sp_ctx->sp_id)) { 1755 WARN("%s: Invalid endpoint ID (0x%x).\n", 1756 __func__, req->endpoint_array[0]); 1757 ret = FFA_ERROR_INVALID_PARAMETER; 1758 goto err_unlock_all; 1759 } ** CID 380531: Integer handling issues (SIGN_EXTENSION) /bl32/tsp/tsp_ffa_main.c: 34 in send_ffa_pm_success() ________________________________________________________________________________________________________ *** CID 380531: Integer handling issues (SIGN_EXTENSION) /bl32/tsp/tsp_ffa_main.c: 34 in send_ffa_pm_success() 28 29 static ffa_endpoint_id16_t tsp_id, spmc_id; 30 31 static smc_args_t *send_ffa_pm_success(void) 32 { 33 return set_smc_args(FFA_MSG_SEND_DIRECT_RESP_SMC32, >>> CID 380531: Integer handling issues (SIGN_EXTENSION) >>> Suspicious implicit sign extension: "tsp_id" with type "ffa_endpoint_id16_t" (16 bits, unsigned) is promoted in "(tsp_id << 16U) | spmc_id" to type "int" (32 bits, signed), then sign-extended to type "unsigned long" (64 bits, unsigned). If "(tsp_id << 16U) | spmc_id" is greater than 0x7FFFFFFF, the upper bits of the result will all be 1. 34 tsp_id << FFA_DIRECT_MSG_SOURCE_SHIFT | 35 spmc_id, 36 FFA_FWK_MSG_BIT | 37 (FFA_PM_MSG_PM_RESP & FFA_FWK_MSG_MASK), 38 0, 0, 0, 0, 0); 39 } ________________________________________________________________________________________________________ To view the defects in Coverity Scan visit, https://u15810271.ct.sendgrid.net/ls/click?upn=HRESupC-2F2Czv4BOaCWWCy7my0P…

4 years, 1 month

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TF-A RME support

by Shameerali Kolothum Thodi

Hi, I am trying to setup and run the RME support in TF-A, using the steps described here, https://trustedfirmware-a.readthedocs.io/en/latest/components/realm-managem… Build goes smoothly and when I launch FVP to run the RME tests using the command line mentioned in the link, the FVP terminal_0 seems to be get stuck at the below line, Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. NOTICE: Booting Trusted Firmware NOTICE: BL1: v2.7(debug):v2.7.0-235-g1631f9c75 NOTICE: BL1: Built : 11:44:37, Aug 22 2022 INFO: BL1: RAM 0x4035000 - 0x403c000 INFO: Loading image id=31 at address 0x4001010 INFO: Image id=31 loaded: 0x4001010 - 0x4001258 INFO: FCONF: Config file with image ID:31 loaded at address = 0x4001010 INFO: Loading image id=24 at address 0x4001300 INFO: Image id=24 loaded: 0x4001300 - 0x40015e4 INFO: FCONF: Config file with image ID:24 loaded at address = 0x4001300 INFO: BL1: Loading BL2 INFO: Loading image id=1 at address 0x4022000 INFO: Image id=1 loaded: 0x4022000 - 0x402cca1 NOTICE: BL1: Booting BL2 INFO: Entry point address = 0x4022000 INFO: SPSR = 0x3cd INFO: Configuring TrustZone Controller INFO: Total 6 regions set. Both the tf-a-tests.git and trusted-firmware-a.git are master branch and I am using the FVP_Base_RevC-2xAEMvA v11.18.16. I am totally new to this setup and maybe I am missing something here. Appreciate any help to get this resolved or tips to debug further. Thanks, Shameer

4 years, 1 month

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TF-A CI often fail due to missing rebase

by Julius Werner

Hi Glen, Don, and others, I've seen that a couple of TF-A patches I've been CCed on recently often seem to fail the CI run (Allow-CI+1) due to some strange build-time errors that don't seem to have anything to do with the patch at hand, and then one of the maintainers usually suggests that the patch needs a rebase, and the next CI run succeeds after that. Here are two recent examples: https://review.trustedfirmware.org/c/TF-A/trusted-firmware-a/+/16160 https://review.trustedfirmware.org/c/TF-A/trusted-firmware-a/+/14666 I was wondering if this is a known problem and if the CI can do anything here to mitigate it and save developers from this extra layer of friction? I'm not really sure why a rebase was necessary in either of these examples or why the CI run failed before it (unless the whole repository was in a bad state that didn't build, but since all submissions are guarded by the CI that shouldn't have been possible?). But I also don't really understand why the rebase would make a difference for the CI anyway. Generally, when a patch is submitted in Gerrit, that means it is cherry-picked onto the current master (regardless of what parent commit it was uploaded with). Since the CI is supposed to be a test run for submission, I would expect that the CI should also test a patch by cherry-picking it onto the current master, not just by building the patch on top of whatever parent commit it was uploaded with. But since rebasing a patch evidently seems to make a difference to the CI, that suggests that it's currently doing the latter strategy? Should that maybe be changed to the former to avoid these kinds of issues? If this isn't a known problem yet maybe it would be worth adding it to the JIRA? Thanks, Julius

4 years, 1 month

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A problem about TZASC in Armv9

by Chenxu Wang

Greetings, Armv9 introduces the RME and GPT technology. The GPT will separates the memory into unlimited regions with specific attributes. However, when I read the Armv9 manual and source code of TF-A, I still have some problems: 1. It seems that GPT is a feature on CPU, but not on a specific device (e.g.,TZC-400). Thus, will GPT conflict with TZC-400? I mean, when performing VA->PA on RAM, what is the detailed process if I enable both GPT and TZC-400? 2. I use the Arm FVP with Armv9 and RME extension enabled, and TF-A is "arm_cca" branch (with TF-A v2.5). Thus, in this version, what is the configuration for TZC-400 and GPT? Will it disable TZC-400 (I mean, GPT only) when booting Normal World? 3. Does GPT handle peripheral access (e.g., from DMA, GPU, Sensors... etc.)? I know TZC-400 will do it with NSAID. 4. Will GPT configures Read/Write/Execute features? All comments are valuable! SIncerely, WANG Chenxu

4 years, 1 month

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Canceled event with note: TF-A Tech Forum @ Thu Aug 11, 2022 4pm - 5pm (BST) (tf-a@lists.trustedfirmware.org)

by joanna.farley＠arm.com

This event has been canceled with a note: "Cancelling this week. I have no topics ready for presenting also many folks are out on summer holidays. " TF-A Tech Forum Thursday Aug 11, 2022 ⋅ 4pm – 5pm United Kingdom Time We run an open technical forum call 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 this invite to colleagues. Invites are via the TF-A mailing list and also published on the Trusted Firmware website. Details are here: https://www.trustedfirmware.org/meetings/tf-a-technical-forum/Tr… Firmware is inviting you to a scheduled Zoom meeting.Join Zoom Meetinghttps://zoom.us/j/9159704974Meeting ID: 915 970 4974One tap mobile+16465588656,,9159704974# US (New York)+16699009128,,9159704974# 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-freeMeeting ID: 915 970 4974Find your local number: https://zoom.us/u/ad27hc6t7h   Guests marek.bykowski(a)gmail.com okash.khawaja(a)gmail.com tf-a(a)lists.trustedfirmware.org ~~//~~ Invitation from Google Calendar: https://calendar.google.com/calendar/ You are receiving this email because you are an attendee on the event. To stop receiving future updates for this event, decline this event. Forwarding this invitation could allow any recipient to send a response to the organizer, be added to the guest list, invite others regardless of their own invitation status, or modify your RSVP. Learn more https://support.google.com/calendar/answer/37135#forwarding

4 years, 2 months

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TF-A TechForum 19th May Cancelled

by Bipin Ravi

All, This is to inform you all that the TF-A Techforum for Thursday, 19th May 2022 is cancelled as we didn't receive any topic for this week. The next meeting will now be Thursday, 2nd June 2022 at 16:00 - 17:00 BST. Thanks, Bipin Ravi

4 years, 2 months

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Re: Question about disable MMU in BL1

by 邬金平

Hi, I have tried this before, there is a problem. on Armv8, when MMU disabled, the default attribute of memory is device, and device memory access has alignment requirements. For example, accessing address (0x1) will result in fault. Ben via TF-A <tf-a(a)lists.trustedfirmware.org> 于2022年7月19日周二 17:02写道： > Hello, > > To decrease feature in BL1, I plan to disable MMU in BL1 stage. > Are there any potential issues besides performance issues? > > BRs > > ------------------------------ > Ben(a)tsingmicro.com > -- > TF-A mailing list -- tf-a(a)lists.trustedfirmware.org > To unsubscribe send an email to tf-a-leave(a)lists.trustedfirmware.org >

4 years, 2 months

1
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New Defects reported by Coverity Scan for ARM-software/arm-trusted-firmware

by scan-admin＠coverity.com

Hi, Please find the latest report on new defect(s) introduced to ARM-software/arm-trusted-firmware found with Coverity Scan. 1 new defect(s) introduced to ARM-software/arm-trusted-firmware found with Coverity Scan. New defect(s) Reported-by: Coverity Scan Showing 1 of 1 defect(s) ** CID 379362: Memory - illegal accesses (OVERRUN) /lib/psci/psci_common.c: 1046 in psci_is_last_on_cpu_safe() ________________________________________________________________________________________________________ *** CID 379362: Memory - illegal accesses (OVERRUN) /lib/psci/psci_common.c: 1046 in psci_is_last_on_cpu_safe() 1040 unsigned int i = 0; 1041 1042 /* 1043 * Traverse the forest of PSCI nodes, nodes with no parents 1044 * (invalid-nodes) are the root nodes. 1045 */ >>> CID 379362: Memory - illegal accesses (OVERRUN) >>> Overrunning array "psci_non_cpu_pd_nodes" of 5 16-byte elements at element index 5 (byte offset 95) using index "i" (which evaluates to 5). 1046 while ((psci_non_cpu_pd_nodes[i].parent_node == 1047 PSCI_PARENT_NODE_INVALID) && 1048 (i < PSCI_NUM_NON_CPU_PWR_DOMAINS)) { 1049 psci_get_parent_pwr_domain_nodes( 1050 psci_non_cpu_pd_nodes[i].cpu_start_idx, 1051 PLAT_MAX_PWR_LVL, parent_nodes); ________________________________________________________________________________________________________ To view the defects in Coverity Scan visit, https://u15810271.ct.sendgrid.net/ls/click?upn=HRESupC-2F2Czv4BOaCWWCy7my0P…

4 years, 2 months

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Question about disable MMU in BL1

by Ben

Hello, To decrease feature in BL1, I plan to disable MMU in BL1 stage. Are there any potential issues besides performance issues? BRs Ben(a)tsingmicro.com

4 years, 2 months

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Question about maximum TF-A BL31 memory usage

by Peng Fan

Hi All, Is there any public BL31 memory usage data, such as static image size and runtime memory usage, with different feature enabled? For example, typical PSCI feature would require image size XXKB, runtime memory XXKB. enabling FFA would enlarge image size by XXKB, runtime memory enlarge XXKB. we are evaluating how much On-Chip RAM could be assigned for BL31, if there are any public data available, that would be great. Thanks, Peng.

4 years, 2 months

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Rebooting LTS discussion

by Okash Khawaja

Hi, There have been discussions about having long term support releases for TF-A, e.g. the email thread [1] and a tech forum [2]. For partners releasing TF-A in their production devices, LTS is very much needed. From the previous discussions, it seems like there is an agreement that LTS is a good idea but we need to build consensus on how to support it. Any thoughts on this? Thanks, Okash [1] https://lists.trustedfirmware.org/archives/search?mlist=tf-a%40lists.truste… [2] https://www.trustedfirmware.org/docs/TF-A-LTS.pdf

4 years, 2 months

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Question about FVP's dts

by Chenxu Wang

Hi all, I am using FVP base RevC. Recently I heard that this FVP supports a Mali G76 GPU, and I want to test it. To configure it, initially I add a node in linux/arch/arm64/boot/dts/arm/fvp-base-aemv8a-aemv8a.dtsi, but it doesn't work. Finally, I find that I should configure trusted-firmware-a/fdts/fvp-base-gicv3-psci-1t.dts, and I can see a mali GPU node in /proc/device-tree. One of my booting command (sorry, the entire booting command is TOO long) is "--data cluster0.cpu0=arm-reference-platform/output/fvp/fvp-oe/uboot/fvp-base-aemv8a-aemv8a.dtb@0x82000000". And I use the following shell command to compile the TF-A: make PLAT=fvp all CROSS_COMPILE=aarch64-none-elf- ENABLE_RME=1 DEBUG=1 ARCH=aarch64 fip BL33=arm-reference-platform/output/fvp/components/fvp/uboot.bin FVP_HW_CONFIG_DTS=fdts/fvp-base-gicv3-psci-1t.dts ARM_DISABLE_TRUSTED_WDOG=1. So, I wonder, why the real DTS is in TF-A, instead of Linux? BTW, I wanna ask another question (although it is not proper to ask here, I cannot find FVP's mailing list): Can someone provide a proper dts configurations for FVP's Mali G76 GPU? Sincerely, WANG Chenxu

4 years, 3 months

2
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New Defects reported by Coverity Scan for ARM-software/arm-trusted-firmware

by scan-admin＠coverity.com

Hi, Please find the latest report on new defect(s) introduced to ARM-software/arm-trusted-firmware found with Coverity Scan. 4 new defect(s) introduced to ARM-software/arm-trusted-firmware found with Coverity Scan. New defect(s) Reported-by: Coverity Scan Showing 4 of 4 defect(s) ** CID 379252: Concurrent data access violations (MISSING_LOCK) /plat/imx/imx8m/ddr/dram.c: 254 in dram_dvfs_handler() ________________________________________________________________________________________________________ *** CID 379252: Concurrent data access violations (MISSING_LOCK) /plat/imx/imx8m/ddr/dram.c: 254 in dram_dvfs_handler() 248 } else if (dram_info.dram_type == DDRC_DDR4) { 249 ddr4_swffc(&dram_info, fsp_index); 250 } 251 252 dram_info.current_fsp = fsp_index; 253 wait_ddrc_hwffc_done = false; >>> CID 379252: Concurrent data access violations (MISSING_LOCK) >>> Accessing "wfe_done" without holding lock "dfs_lock". Elsewhere, "wfe_done" is accessed with "dfs_lock" held 1 out of 2 times (1 of these accesses strongly imply that it is necessary). 254 wfe_done = 0; 255 dsb(); 256 sev(); 257 isb(); 258 } 259 260 SMC_RET1(handle, 0); ** CID 379251: Memory - corruptions (OVERRUN) ________________________________________________________________________________________________________ *** CID 379251: Memory - corruptions (OVERRUN) /plat/imx/imx8m/ddr/dram.c: 246 in dram_dvfs_handler() 240 } 241 242 /* flush the L1/L2 cache */ 243 dcsw_op_all(DCCSW); 244 245 if (dram_info.dram_type == DDRC_LPDDR4) { >>> CID 379251: Memory - corruptions (OVERRUN) >>> Overrunning callee's array of size 3 by passing argument "fsp_index" (which evaluates to 3) in call to "lpddr4_swffc". 246 lpddr4_swffc(&dram_info, dev_fsp, fsp_index); 247 dev_fsp = (~dev_fsp) & 0x1; 248 } else if (dram_info.dram_type == DDRC_DDR4) { 249 ddr4_swffc(&dram_info, fsp_index); 250 } 251 ** CID 379250: (COPY_PASTE_ERROR) /plat/imx/imx8m/imx8mm/gpc.c: 182 in imx_gpc_pm_domain_enable() /plat/imx/imx8m/imx8mn/gpc.c: 81 in imx_gpc_pm_domain_enable() ________________________________________________________________________________________________________ *** CID 379250: (COPY_PASTE_ERROR) /plat/imx/imx8m/imx8mm/gpc.c: 182 in imx_gpc_pm_domain_enable() 176 /* HSIOMIX has no PU bit, so skip for it */ 177 if (domain_id != HSIOMIX) { 178 /* clear the PGC bit */ 179 mmio_clrbits_32(IMX_GPC_BASE + pwr_domain->pgc_offset, 0x1); 180 181 /* power up the domain */ >>> CID 379250: (COPY_PASTE_ERROR) >>> "mmio_setbits_32" in "mmio_setbits_32(809107704UL, pwr_domain->pwr_req)" looks like a copy-paste error. 182 mmio_setbits_32(IMX_GPC_BASE + PU_PGC_UP_TRG, pwr_domain->pwr_req); 183 184 /* wait for power request done */ 185 while (mmio_read_32(IMX_GPC_BASE + PU_PGC_UP_TRG) & pwr_domain->pwr_req) { 186 ; 187 } /plat/imx/imx8m/imx8mn/gpc.c: 81 in imx_gpc_pm_domain_enable() 75 /* HSIOMIX has no PU bit, so skip for it */ 76 if (domain_id != HSIOMIX) { 77 /* clear the PGC bit */ 78 mmio_clrbits_32(IMX_GPC_BASE + pwr_domain->pgc_offset, 0x1); 79 80 /* power up the domain */ >>> CID 379250: (COPY_PASTE_ERROR) >>> "mmio_setbits_32" in "mmio_setbits_32(809107704UL, pwr_domain->pwr_req)" looks like a copy-paste error. 81 mmio_setbits_32(IMX_GPC_BASE + PU_PGC_UP_TRG, pwr_domain->pwr_req); 82 83 /* wait for power request done */ 84 while (mmio_read_32(IMX_GPC_BASE + PU_PGC_UP_TRG) & pwr_domain->pwr_req) { 85 ; 86 } ** CID 379249: Memory - illegal accesses (OVERRUN) /plat/imx/imx8m/ddr/dram.c: 151 in dram_info_init() ________________________________________________________________________________________________________ *** CID 379249: Memory - illegal accesses (OVERRUN) /plat/imx/imx8m/ddr/dram.c: 151 in dram_info_init() 145 break; 146 } 147 } 148 dram_info.num_fsp = i; 149 150 /* check if has bypass mode support */ >>> CID 379249: Memory - illegal accesses (OVERRUN) >>> Overrunning array "dram_info.timing_info->fsp_table" of 4 4-byte elements at element index 4294967295 (byte offset 17179869183) using index "i - 1U" (which evaluates to 4294967295). 151 if (dram_info.timing_info->fsp_table[i-1] < 666) { 152 dram_info.bypass_mode = true; 153 } else { 154 dram_info.bypass_mode = false; 155 } 156 ________________________________________________________________________________________________________ To view the defects in Coverity Scan visit, https://u15810271.ct.sendgrid.net/ls/click?upn=HRESupC-2F2Czv4BOaCWWCy7my0P…

4 years, 3 months

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Updated invitation with note: TF-A Tech Forum @ Thu Jul 14, 2022 4pm - 5pm (BST) (tf-a@lists.trustedfirmware.org)

by joanna.farley＠arm.com

This event has been updated with a note: "Updated Agenda for 14th July TF-A TechForum session next week." Changed: description TF-A Tech Forum Thursday Jul 14, 2022 ⋅ 4pm – 5pm United Kingdom Time AgendaLTS (Long Term Support) Releases DiscussionLed by Okash Khawaja (Google) and Varun Wadekar (NVIDIA)An initial discussion on some of the requirements and open questions of providing TF-A LTS releases. This initial session will concentrate on the technical aspects of LTS releases with suggestions and examples. Latter sessions can be expected to bring into the discussion resourcing and funding considerations.The hope is to establish and exchange views of the project community interest on this topic.==============================================================================We run an open technical forum call 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 this invite to colleagues. Invites are via the TF-A mailing list and also published on the Trusted Firmware website. Details are here: https://www.trustedfirmware.org/meetings/tf-a-technical-forum/Tr… Firmware is inviting you to a scheduled Zoom meeting.Join Zoom Meetinghttps://zoom.us/j/9159704974Meeting ID: 915 970 4974One tap mobile+16465588656,,9159704974# US (New York)+16699009128,,9159704974# 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-freeMeeting ID: 915 970 4974Find your local number: https://zoom.us/u/ad27hc6t7h   Guests marek.bykowski(a)gmail.com okash.khawaja(a)gmail.com tf-a(a)lists.trustedfirmware.org thordur(a)google.com View all guest info https://calendar.google.com/calendar/event?action=VIEW&eid=NWlub3Ewdm1tMmk1… Reply for tf-a(a)lists.trustedfirmware.org and view more details https://calendar.google.com/calendar/event?action=VIEW&eid=NWlub3Ewdm1tMmk1… Your attendance is optional. ~~//~~ Invitation from Google Calendar: https://calendar.google.com/calendar/ You are receiving this email because you are an attendee on the event. To stop receiving future updates for this event, decline this event. Forwarding this invitation could allow any recipient to send a response to the organizer, be added to the guest list, invite others regardless of their own invitation status, or modify your RSVP. Learn more https://support.google.com/calendar/answer/37135#forwarding

4 years, 3 months

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Re: Cannot successfully jump to the UEFI Boot Loader in the normal world with the RME enabled FVP_Base_RevC_2xAEMvA

by Erhu Feng

Hi, Thanks for the detailed documentation about how to enable RME in tf-a. I try to replace the tftf.bin with the normal boot firmware (edk2) to load the Linux in the normal world, but it fails. The log message from terminal_0 is shown below: INFO: RMM init start. INFO: RMM init end. INFO: BL31: Preparing for EL3 exit to normal world INFO: Entry point address = 0x88000000 INFO: SPSR = 0x3c9 I found a possible solution from the archives: [https://lists.trustedfirmware.org/archives/list/tf-a@lists.trustedfirmware.…]. I try to modify the dts file under edk2-platform/Platform/ARM/VExpressPkg/DeviceTree/ to change the DDR memory range, which is similar to the modification for RME in [https://github.com/ARM-software/arm-trusted-firmware/blob/master/fdts/fvp-b…], but it does not solve the problem. So, how can I boot Linux in the normal world with RME enabled? Thanks,

4 years, 3 months

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Manish Badarkhe added to maintainer list

by Manish Pandey2

Hi, I would like to introduce "Manish Badarkhe" <Manish.Badarkhe(a)arm.com> who has been added to the list of maintainers. This is based on his contribution to the project recently. Congratulations Manish B! Thanks Manish Pandey

4 years, 3 months

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Addition of write() capability to IO MTD layer

by brian.neely＠analog.com

Hello, A project I’m working on requires write capability for a NOR flash device in BL2 (to update a small boot mux partition). I am considering adding this capability to the IO MTD layer (https://github.com/ARM-software/arm-trusted-firmware/blob/master/drivers/io…), but before doing so wanted to confirm this is in line with the architecture of this subsystem. Can someone confirm if this is an acceptable change? Regards, Brian

4 years, 3 months

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Version 1.2.12 of zlib was released

by mikemcternan＠google.com

Hi! It looks like TF-A contains zlib 1.2.11 e.g. https://git.trustedfirmware.org/TF-A/trusted-firmware-a.git/tree/lib/zlib/z… zlib.net gives their last release as 1.2.12 (March 27, 2022) with the following changelog: "Fix a deflate bug when using the Z_FIXED strategy that can result in out-of-bound accesses. Fix a deflate bug when the window is full in deflate_stored(). Speed up CRC-32 computations by a factor of 1.5 to 3. Use the hardware CRC-32 instruction on ARMv8 processors. Speed up crc32_combine() with powers of x tables. Add crc32_combine_gen() and crc32_combine_op() for fast combines. Due to the bug fixes, any installations of 1.2.11 should be replaced with 1.2.12." I'm not sure if this is significant as I couldn't find usages of deflate, but thought I would mention it in case others are relying on this functionality and wish to update. Kind regards, Mike

4 years, 3 months

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