September 2024 - TF-A - lists.trustedfirmware.org

by Deng Bob

Hi all, I am trying to raise a question about SDS. As you know, SDS (Shared data storage) is used to communicate or exhcange info among different processor units like AP, SCP, RSE, etc. So, do we need to add some lock mechanisms to protect the data when one processor entity is accessing it? After I reviewed the open source Trusted Firmware and SCP firmware it looks to me that both Trusted Firmware and SCP directly access the shared memory region without any limitation. Currently, it just uses the 'valid' flag to identify if the data is ready to use, is this good enough? Looking forwared to your response! Thank you!!! Best Regards, Bob

6 days, 4 hours

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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 445089: Control flow issues (DEADCODE) /drivers/st/pmic/stpmic2.c: 251 in stpmic2_regulator_levels_mv() ________________________________________________________________________________________________________ *** CID 445089: Control flow issues (DEADCODE) /drivers/st/pmic/stpmic2.c: 251 in stpmic2_regulator_levels_mv() 245 uint8_t id, const uint16_t **levels, 246 size_t *levels_count) 247 { 248 const struct regul_struct *regul = &regul_table[id]; 249 250 if (regul == NULL) { >>> CID 445089: Control flow issues (DEADCODE) >>> Execution cannot reach this statement: "return -3;". 251 return RET_ERROR_BAD_PARAMETERS; 252 } 253 254 if (levels_count != NULL) { 255 *levels_count = regul->volt_table_size; 256 } ________________________________________________________________________________________________________ To view the defects in Coverity Scan visit, https://u15810271.ct.sendgrid.net/ls/click?upn=u001.AxU2LYlgjL6eX23u9ErQy-2…

1 week, 3 days

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TF-A EL3 SPMC upgrade to FF-A Spec v1.2

by Belsare, Akshay

Hi Marc, In TF-A, the FF-A version is currently set to v1.2, but I am unable to find the corresponding implementation for EL3 SPMC configuration. I'm particularly interested in the support for FF-A Notification Mechanism. Could you please provide the timeline for when this will be added to the TF-A EL3 SPMC configuration? Thank You! Akshay Belsare

1 week, 3 days

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PSA calls with RSE comms and MHU

by Yann Gautier

Hello, I would like to use PSA calls for an application on STM32MP2 platform. I've seen the psa_call() API that I could use, in drivers/arm/rse/rse_comms.c. The problem is that it is based on MHU mailbox, which I don't have on STM32MP2. So I was planning plan to disentangle RSE comms and MHU, having a new file in the same directory to manage MHU. This code should then be under a flag, I could re-use PLAT_MHU_VERSION. Setting it to 0, would mean no MHU. AFAICT TF-M uses that split with a dedicated file: rse_comms_hal.c: Abstracts MHU message sending and receiving. (see https://tf-m-user-guide.trustedfirmware.org/platform/arm/rse/rse_comms.html). Do you think this approach sounds right? Thanks, Yann

1 week, 5 days

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Trusted Firmware-A LTS v2.8.21 Release Announcement

by ci_notify＠trustedfirmware.org

Hello, Trusted Firmware-A LTS version 2.8.21 is now available. This release contains the following patches: 75124503f fix(cpus): workaround for Cortex-X4 erratum 2816013 [1] dedcbb78e fix(cpus): workaround for Cortex-A720 erratum 2844092 [2] 9db99a3e4 fix(cpus): workaround for Cortex-A720 erratum 2792132 [3] a0a574d70 feat(cpus): workaround for Cortex-A520(2938996) and Cortex-X4(2726228) [4] d1f63aba2 fix(spm-mm): carve out NS buffer TZC400 region [5] 4220b8313 feat(fvp): add cpu power control [6] d9daf130c docs(fvp): update FVP versions used [7] [1] https://review.trustedfirmware.org/q/I546044bde6e5eedd0abf61643d25e2dd2036d… [2] https://review.trustedfirmware.org/q/I3d8eacb26cba42774f1f31c3aae2a0e6fecec… [3] https://review.trustedfirmware.org/q/I8d11fe65a2ab5f79244cc3395d0645f772563… [4] https://review.trustedfirmware.org/q/I8f886a1c21698f546a0996c719cc27dc0a236… [5] https://review.trustedfirmware.org/q/Idc3370803ad204ac29efeded77305e52e17cc… [6] https://review.trustedfirmware.org/q/Iba6c3c8db60dbeb177cead7ebc65df8265860… [7] https://review.trustedfirmware.org/q/Ie478b81b0f09d8664966cc1fac71a775a1a95… Alternatively, Change Log is available in the documentation section: https://trustedfirmware-a.readthedocs.io/en/lts-v2.8.21/change-log.html Thanks, TF-A LTS team

2 weeks, 2 days

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Trusted Firmware-A LTS v2.10.6 Release Announcement

by ci_notify＠trustedfirmware.org

Hello, Trusted Firmware-A LTS version 2.10.6 is now available. This release contains the following patches: 582b950ed fix(cpus): workaround for Cortex-X4 erratum 2816013 [1] 9d3934323 fix(cpus): workaround for Cortex-A720 erratum 2844092 [2] a93c69bbb fix(cpus): workaround for Cortex-A720 erratum 2792132 [3] 74fc9576d fix(spm-mm): carve out NS buffer TZC400 region [4] 9ca6bf389 feat(fvp): add cpu power control [5] e941b0e0f fix(arm_fpga): halve number of PEs per core [6] 47010ae9d feat(cpus): workaround for Cortex-A520(2938996) and Cortex-X4(2726228) [7] c1b976727 docs(fvp): update FVP versions used [8] [1] https://review.trustedfirmware.org/q/I546044bde6e5eedd0abf61643d25e2dd2036d… [2] https://review.trustedfirmware.org/q/I3d8eacb26cba42774f1f31c3aae2a0e6fecec… [3] https://review.trustedfirmware.org/q/I8d11fe65a2ab5f79244cc3395d0645f772563… [4] https://review.trustedfirmware.org/q/Idc3370803ad204ac29efeded77305e52e17cc… [5] https://review.trustedfirmware.org/q/Iba6c3c8db60dbeb177cead7ebc65df8265860… [6] https://review.trustedfirmware.org/q/Ieb37ccc9f362b10ff0ce038f72efca21512a7… [7] https://review.trustedfirmware.org/q/I8f886a1c21698f546a0996c719cc27dc0a236… [8] https://review.trustedfirmware.org/q/Ie478b81b0f09d8664966cc1fac71a775a1a95… Alternatively, Change Log is available in the documentation section: https://trustedfirmware-a.readthedocs.io/en/lts-v2.10.6/change-log.html Thanks, TF-A LTS team

2 weeks, 2 days

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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 445015: Control flow issues (UNREACHABLE) /mbedtls/library/psa_crypto_cipher.c: 250 in mbedtls_cipher_values_from_psa() ________________________________________________________________________________________________________ *** CID 445015: Control flow issues (UNREACHABLE) /mbedtls/library/psa_crypto_cipher.c: 250 in mbedtls_cipher_values_from_psa() 244 cipher_id_tmp = MBEDTLS_CIPHER_ID_CHACHA20; 245 break; 246 #endif 247 default: 248 return PSA_ERROR_NOT_SUPPORTED; 249 } >>> CID 445015: Control flow issues (UNREACHABLE) >>> This code cannot be reached: "if (cipher_id != NULL) { ...". 250 if (cipher_id != NULL) { 251 *cipher_id = cipher_id_tmp; 252 } 253 254 return mbedtls_cipher_validate_values(alg, key_type); 255 } ________________________________________________________________________________________________________ To view the defects in Coverity Scan visit, https://u15810271.ct.sendgrid.net/ls/click?upn=u001.AxU2LYlgjL6eX23u9ErQy-2…

2 weeks, 2 days

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Re: Canceled event: TF-A Tech Forum @ Thu Sep 19, 2024 5pm - 6pm (GMT+2) (tf-a@lists.trustedfirmware.org)

by Olivier Deprez

Hi, Cancelling today's Sep 19th instance as no topic proposed. Regards, Olivier. ________________________________ From: Trusted Firmware Public Meetings Sent: 24 July 2024 17:36 To: Trusted Firmware Public Meetings <linaro.org_havjv2figrh5egaiurb229pd8c(a)group.calendar.google.com>; tf-a(a)lists.trustedfirmware.org <tf-a(a)lists.trustedfirmware.org> Subject: [TF-A] Canceled event: TF-A Tech Forum @ Thu Sep 19, 2024 5pm - 6pm (GMT+2) (tf-a(a)lists.trustedfirmware.org) When: 19 September 2024 17:00-18:00. Where: This event has been canceled. 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/<https://www.google.com/url?q=https%3A%2F%2Fwww.trustedfirmware.org%2Fmeetin…> Trusted Firmware is inviting you to a scheduled Zoom meeting. Join Zoom Meeting https://linaro-org.zoom.us/my/trustedfirmware?pwd=VktXcm5MNUUyVVM4R0k3ZUtvd…<https://www.google.com/url?q=https%3A%2F%2Flinaro-org.zoom.us%2Fmy%2Ftruste…> One 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-free Meeting ID: 915 970 4974 Find your local number: https://zoom.us/u/ad27hc6t7h<https://www.google.com/url?q=https%3A%2F%2Fzoom.us%2Fu%2Fad27hc6t7h&sa=D&us…> When Thursday Sep 19, 2024 ⋅ 5pm – 6pm (Central European Time - Paris) Guests tf-a(a)lists.trustedfirmware.org<mailto:tf-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>

2 weeks, 3 days

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Canceled event: TF-A Tech Forum @ Thu Sep 19, 2024 5pm - 6pm (GMT+2) (tf-a@lists.trustedfirmware.org)

by Olivier Deprez

This event has been canceled. TF-A Tech Forum Thursday Sep 19, 2024 ⋅ 5pm – 6pm Central European Time - Paris 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/Trusted Firmware is inviting you to a scheduled Zoom meeting.Join Zoom Meetinghttps://linaro-org.zoom.us/my/trustedfirmware?pwd=VktXcm5MNUUyVVM4R0k3ZUtvdU84QT09 One 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 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

2 weeks, 3 days

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How to map a physical address using `mmap_add_dynamic_region_alloc_va`?

by 钱非凡

Hi experts, I tried to allocate a physical memory address in Linux Kernel, and pass the memory address to tf-a using smc call. As I asked in previous mails (https://lists.trustedfirmware.org/archives/list/tf-a@lists.trustedfirmware.…), tf-a can not access the physical memory address directly, so I try to use the `mmap_add_dynamic_region_alloc_va` function in `xlat_table_v2` Library, and map the physical memory in tf-a. After calling the function, It does return a new virtual memory address, but I still failed to access the address, is there any details I have missed? Here is the code: ``` NOTICE("phys_addr: 0x%lx, virt_addr: 0x%lx\n", phys_addr, virt_addr); int rc = mmap_add_dynamic_region_alloc_va(phys_addr, ptr_virt_addr, size, MT_NS | MT_RW_DATA); if (rc) { WARN("Failed to map memory at 0x%lx: %d\n", phys_addr, rc); return; } NOTICE("virt_addr_el3: 0x%lx\n", virt_addr_el3); NOTICE("virt_addr_el3[0] = 0x%x\n", *((uint32_t *)virt_addr_el3)); ``` Here is the output: ``` NOTICE: phys_addr: 0x40f0000, virt_addr: 0xffff0000040f0000 NOTICE: mm.base_va: 0 NOTICE: mm.base_va: 100000000 NOTICE: virt_addr_el3: 0x100000000 [ 38.540464] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 38.546584] rcu: 4-...0: (1 ticks this GP) idle=4224/1/0x4000000000000000 softirq=125/125 fqs=2625 [ 38.555651] (detected by 0, t=5252 jiffies, g=-779, q=16 ncpus=8) [ 38.561843] Task dump for CPU 4: [ 38.565075] task:main state:R running task stack:0 pid:195 ppid:181 flags:0x00000002 [ 38.575015] Call trace: [ 38.577464] __switch_to+0xe4/0x160 [ 38.580975] 0x42 ``` I would be grateful for any advice or suggestions you may have. Sincerely, Feifan

2 weeks, 3 days

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