TF-A August 2024

tf-a@lists.trustedfirmware.org

7 participants
8 discussions

by Bollapalli, Maheedhar Sai

Hi, On AMD-Xilinx ZynqMP platform there is a erratum (1530924) which is mentioned as applied as shown in the log below: " INFO: BL31: cortex_a53: CPU workaround for erratum 1530924 was applied " Refer to the code comments mentioned below, there is no "erratum has no workaround in the CPU. Generic code must take care " https://gitenterprise.xilinx.com/Linux/arm-trusted-firmware/blob/master/lib… However, we found no handling in the generic code either. Can we be guided further regarding the handling of erratum 1530924 ? Regards, Maheedhar.

1 month

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. 6 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 6 of 6 defect(s) ** CID 443168: Error handling issues (CHECKED_RETURN) /plat/st/stm32mp2/bl2_plat_setup.c: 183 in bl2_el3_plat_arch_setup() ________________________________________________________________________________________________________ *** CID 443168: Error handling issues (CHECKED_RETURN) /plat/st/stm32mp2/bl2_plat_setup.c: 183 in bl2_el3_plat_arch_setup() 177 BL_CODE_END - BL_CODE_BASE, 178 MT_CODE | MT_SECURE); 179 180 configure_mmu(); 181 182 /* Prevent corruption of preloaded Device Tree */ >>> CID 443168: Error handling issues (CHECKED_RETURN) >>> Calling "mmap_add_dynamic_region" without checking return value (as is done elsewhere 25 out of 29 times). 183 mmap_add_dynamic_region(DTB_BASE, DTB_BASE, 184 DTB_LIMIT - DTB_BASE, 185 MT_RO_DATA | MT_SECURE); 186 187 if (dt_open_and_check(STM32MP_DTB_BASE) < 0) { 188 panic(); ** CID 443167: Integer handling issues (OVERFLOW_BEFORE_WIDEN) /plat/rockchip/rk3588/drivers/scmi/rk3588_clk.c: 578 in rk3588_b0pll_get_rate() ________________________________________________________________________________________________________ *** CID 443167: Integer handling issues (OVERFLOW_BEFORE_WIDEN) /plat/rockchip/rk3588/drivers/scmi/rk3588_clk.c: 578 in rk3588_b0pll_get_rate() 572 573 rate64 *= m; 574 rate64 = rate64 / p; 575 576 if (k != 0) { 577 /* fractional mode */ >>> CID 443167: Integer handling issues (OVERFLOW_BEFORE_WIDEN) >>> Potentially overflowing expression "24000000U * k" with type "unsigned int" (32 bits, unsigned) is evaluated using 32-bit arithmetic, and then used in a context that expects an expression of type "uint64_t" (64 bits, unsigned). 578 uint64_t frac_rate64 = 24000000 * k; 579 580 postdiv = p * 65535; 581 frac_rate64 = frac_rate64 / postdiv; 582 rate64 += frac_rate64; 583 } ** CID 443166: Memory - corruptions (OVERRUN) ________________________________________________________________________________________________________ *** CID 443166: Memory - corruptions (OVERRUN) /plat/intel/soc/common/socfpga_vab.c: 97 in socfpga_vab_authentication() 91 if (!IS_BYTE_ALIGNED(img_sz, sizeof(uint32_t))) { 92 ERROR("Image size (%d bytes) not aliged to 4 bytes!\n", img_sz); 93 return -EIMGERR; 94 } 95 96 /* Generate HASH384 from the image */ >>> CID 443166: Memory - corruptions (OVERRUN) >>> Overrunning array "hash384" of 12 bytes by passing it to a function which accesses it at byte offset 47. 97 sha384_start((uint8_t *)img_addr, img_sz, hash384, CHUNKSZ_PER_WD_RESET); 98 cert_hash_ptr = (uint8_t *)(img_addr + img_sz + VAB_CERT_MAGIC_OFFSET + 99 VAB_CERT_FIT_SHA384_OFFSET); 100 101 /* 102 * Compare the SHA384 found in certificate against the SHA384 ** CID 443165: Integer handling issues (OVERFLOW_BEFORE_WIDEN) /plat/rockchip/rk3588/drivers/scmi/rk3588_clk.c: 747 in rk3588_b1pll_get_rate() ________________________________________________________________________________________________________ *** CID 443165: Integer handling issues (OVERFLOW_BEFORE_WIDEN) /plat/rockchip/rk3588/drivers/scmi/rk3588_clk.c: 747 in rk3588_b1pll_get_rate() 741 742 rate64 *= m; 743 rate64 = rate64 / p; 744 745 if (k != 0) { 746 /* fractional mode */ >>> CID 443165: Integer handling issues (OVERFLOW_BEFORE_WIDEN) >>> Potentially overflowing expression "24000000U * k" with type "unsigned int" (32 bits, unsigned) is evaluated using 32-bit arithmetic, and then used in a context that expects an expression of type "uint64_t" (64 bits, unsigned). 747 uint64_t frac_rate64 = 24000000 * k; 748 749 postdiv = p * 65535; 750 frac_rate64 = frac_rate64 / postdiv; 751 rate64 += frac_rate64; 752 } ** CID 443164: Integer handling issues (OVERFLOW_BEFORE_WIDEN) /plat/rockchip/rk3588/drivers/scmi/rk3588_clk.c: 408 in rk3588_lpll_get_rate() ________________________________________________________________________________________________________ *** CID 443164: Integer handling issues (OVERFLOW_BEFORE_WIDEN) /plat/rockchip/rk3588/drivers/scmi/rk3588_clk.c: 408 in rk3588_lpll_get_rate() 402 403 rate64 *= m; 404 rate64 = rate64 / p; 405 406 if (k != 0) { 407 /* fractional mode */ >>> CID 443164: Integer handling issues (OVERFLOW_BEFORE_WIDEN) >>> Potentially overflowing expression "24000000U * k" with type "unsigned int" (32 bits, unsigned) is evaluated using 32-bit arithmetic, and then used in a context that expects an expression of type "uint64_t" (64 bits, unsigned). 408 uint64_t frac_rate64 = 24000000 * k; 409 410 postdiv = p * 65535; 411 frac_rate64 = frac_rate64 / postdiv; 412 rate64 += frac_rate64; 413 } ** CID 254051: Memory - illegal accesses (OVERRUN) /plat/intel/soc/common/lib/sha/sha.c: 206 in sha512_base_do_finalize() ________________________________________________________________________________________________________ *** CID 254051: Memory - illegal accesses (OVERRUN) /plat/intel/soc/common/lib/sha/sha.c: 206 in sha512_base_do_finalize() 200 const int bit_offset = SHA512_BLOCK_SIZE - sizeof(uint64_t[2]); 201 uint64_t *bits = (uint64_t *)(sctx->buf + bit_offset); 202 unsigned int partial = sctx->count[0] % SHA512_BLOCK_SIZE; 203 204 sctx->buf[partial++] = 0x80; 205 if (partial > bit_offset) { >>> CID 254051: Memory - illegal accesses (OVERRUN) >>> Overrunning array of 128 bytes at byte offset 128 by dereferencing pointer "sctx->buf + partial". [Note: The source code implementation of the function has been overridden by a builtin model.] 206 memset(sctx->buf + partial, 0x0, SHA512_BLOCK_SIZE - partial); 207 partial = 0; 208 209 sha512_block_fn(sctx, sctx->buf, 1); 210 } 211 ________________________________________________________________________________________________________ To view the defects in Coverity Scan visit, https://u15810271.ct.sendgrid.net/ls/click?upn=u001.AxU2LYlgjL6eX23u9ErQy-2…

5 months

Canceled event with note: TF-A Tech Forum @ Thu Aug 22, 2024 5pm - 6pm (GMT+2) (tf-a@lists.trustedfirmware.org)

by Olivier Deprez

This event has been canceled with a note: "Hi, Cancelling today as no topic. Regards, Olivier." TF-A Tech Forum Thursday Aug 22, 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

5 months, 1 week

Re: TF-A Tech Forum

by Olivier Deprez

Hi, cancelling today as no topic. 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>; marek.bykowski(a)gmail.com <marek.bykowski(a)gmail.com>; okash.khawaja(a)gmail.com <okash.khawaja(a)gmail.com>; tf-a(a)lists.trustedfirmware.org <tf-a(a)lists.trustedfirmware.org> Subject: TF-A Tech Forum When: 22 August 2024 17:00-18:00. Where: TF-A Tech Forum 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 This event has been updated 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 Every 2 weeks from 8am to 9am on Thursday (Mountain Standard Time - Phoenix) Guests marek.bykowski(a)gmail.com<mailto:marek.bykowski@gmail.com> okash.khawaja(a)gmail.com<mailto:okash.khawaja@gmail.com> tf-a(a)lists.trustedfirmware.org<mailto:tf-a@lists.trustedfirmware.org> View all guest info<https://calendar.google.com/calendar/event?action=VIEW&eid=NWlub3Ewdm1tMmk1…> RSVP for tf-a(a)lists.trustedfirmware.org<mailto:tf-a@lists.trustedfirmware.org> for all events in this series <https://calendar.google.com/calendar/event?action=RESPOND&eid=NWlub3Ewdm1tM…> Yes <https://calendar.google.com/calendar/event?action=RESPOND&eid=NWlub3Ewdm1tM…> No <https://calendar.google.com/calendar/event?action=RESPOND&eid=NWlub3Ewdm1tM…> Maybe <https://calendar.google.com/calendar/event?action=VIEW&eid=NWlub3Ewdm1tMmk1…> More options 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>

5 months, 1 week

Query regarding the test coverage thru tf-a-tests

by Thangaraj, Senthil Nathan

Dear TF-A team, I have a query regarding the TF-A test. Specifically, I would like to know if there is a method to find out the code coverage for a specific test or for all the tests in current run? Your direction in this regard will be really appreciated. Thank you, Senthil

5 months, 2 weeks

Arm TF-A can not access linux kernel's virtual/physical address?

by 钱非凡

In my opinion, Arm TF-A (EL3) has higher privileges than Linux Kernel (EL1), and Secure World should be able to access all memory address in Normal World. To verify this feature, I added a new SMC call in Arm TF-A and wrote a kernel module to test it (on a Hikey960 Development Board). But the program does not run as expected that Arm TF-A stucked while accessing the memory address passed by Linux Kernel. Here is my kernel module, which uses `alloc_pages` to acquire a physical address, and uses `page_address` converting it to a virtual address. And the module passes the physical address and the virtual address to Arm TF-A using `smc #0`: ```cpp static int __init smc_testing_init(void) { uintptr_t phys_addr, virt_addr; pr_info("Mmodule loaded\n"); phys_addr = (uintptr_t) alloc_pages(GFP_KERNEL, 2); virt_addr = (uintptr_t) page_address((struct page *) phys_addr); memset((void *) virt_addr, 'A', PAGE_SIZE << 2); printk("phys_addr: 0x%llx, virt_addr: 0x%llx\n", (uint64_t) phys_addr, (uint64_t) virt_addr); asm volatile( "ldr x0, =0xC8000003\n" "mov x1, %0\n" "mov x2, %1\n" "smc #0\n" : : "r" (phys_addr), "r" (virt_addr) : "x0", "x1", "x2" ); __free_pages((struct page *) phys_addr, 2); return 0; } static void __exit smc_testing_exit(void) { pr_info("Module unloaded\n"); } ``` And here is the handler's code in Arm TF-A, which prints the addresses of physical address and virtual address, and access the first element of the memory address: ```cpp if (0xC8000003 == smc_fid) { uintptr_t virt_addr = x3; NOTICE("phys_addr: 0x%lx, virt_addr: 0x%lx\n", phys_addr, virt_addr); NOTICE("virt_addr[0] = 0x%x\n", *((uint32_t *)virt_addr)); NOTICE("phys_addr[0] = 0x%x\n", *((uint32_t *)phys_addr)); SMC_RET0(handle); } ``` Here is the output, Arm TF-A handles the request successfully, but failed to access the memory address passed by Linux Kernel: ```bash # insmod ./smc_testing.ko [ 75.259590] smc_testing: loading out-of-tree module taints kernel. [ 75.266682] Mmodule loaded [ 75.269404] phys_addr: 0xfffffc0002dc5e00, virt_addr: 0xffff0000b7178000 NOTICE: phys_addr: 0xfffffc0002dc5e00, virt_addr: 0xffff0000b7178000 [ 96.276605] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 96.282741] rcu: 4-...0: (1 ticks this GP) idle=72ec/1/0x4000000000000000 softirq=204/204 fqs=2592 [ 96.291835] (detected by 0, t=5253 jiffies, g=-643, q=16 ncpus=8) [ 96.298044] Task dump for CPU 4: [ 96.301287] task:insmod state:R running task stack:0 pid:201 ppid:185 flags:0x00000006 [ 96.311254] Call trace: [ 96.313713] __switch_to+0xe4/0x160 [ 96.317241] printk_rb_static+0x30/0x58 ```

5 months, 2 weeks

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 441243: Memory - corruptions (OVERRUN) ________________________________________________________________________________________________________ *** CID 441243: Memory - corruptions (OVERRUN) /plat/xilinx/common/pm_service/pm_svc_main.c: 516 in eemi_api_handler() 510 module_id = (api_id & MODULE_ID_MASK) >> 8U; 511 512 PM_PACK_PAYLOAD7(payload, module_id, security_flag, api_id, 513 pm_arg[0], pm_arg[1], pm_arg[2], pm_arg[3], 514 pm_arg[4], pm_arg[5]); 515 >>> CID 441243: Memory - corruptions (OVERRUN) >>> Overrunning callee's array of size 7 by passing argument "7UL" in call to "pm_ipi_send_sync". 516 ret = pm_ipi_send_sync(primary_proc, payload, (uint32_t *)buf, 517 PAYLOAD_ARG_CNT); 518 519 SMC_RET4(handle, (uint64_t)ret | ((uint64_t)buf[0] << 32U), 520 (uint64_t)buf[1] | ((uint64_t)buf[2] << 32U), 521 (uint64_t)buf[3] | ((uint64_t)buf[4] << 32U), ________________________________________________________________________________________________________ To view the defects in Coverity Scan visit, https://u15810271.ct.sendgrid.net/ls/click?upn=u001.AxU2LYlgjL6eX23u9ErQy-2…

5 months, 3 weeks

Canceled event with note: TF-A Tech Forum @ Thu Aug 8, 2024 4pm - 5pm (BST) (tf-a@lists.trustedfirmware.org)

by Joanna Farley

This event has been canceled with a note: "No topics scheduled this week so cancelling. Also a lot of people seem to be away on vacations." TF-A Tech Forum Thursday Aug 8, 2024 ⋅ 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/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

5 months, 4 weeks

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TF-A August 2024