Hello,
In the file /plat/xilinx/zynqmp/aarch64/zynqmp_common.c, there is a function named plat_get_syscnt_freq2 with its definition. Simultaneously, the declaration of this function is included in include/plat/common/platform.h with the name plat_get_syscnt_freq2 and a different parameter type, leading to a violation when running the Coverity MISRA-C analysis for the Zynqmp platform. Declaration uses a different parameter type than the function Definition.
Addressing this issue by introducing a typedef for plat_get_syscnt_freq2 in platform.h and specifying its type as uint32_t resolves the violation. However, it introduces a challenge for other platforms, as this modification necessitates similar changes across various platforms, causing violations in those areas due to the adjusted typedef.
Is it possible to fix with the typedef? Please suggest.
Regards,
Nithin
Hello,
In the file /bl31/interrupt_mgmt.c and /include/drivers/arm/gicv2.h and other files getting misra_c_2012_rule_2_4_violation: Type has tag "intr_type_desc" but that tag is never used. during the Coverity MISRA-C analysis.
typedef struct intr_type_desc {
interrupt_type_handler_t handler;
u_register_t scr_el3[2];
uint32_t flags;
} intr_type_desc_t;
Resolution: Removed the intr_type_desc variable as it declared it's typedef intr_type_desc_t.
typedef struct {
interrupt_type_handler_t handler;
u_register_t scr_el3[2];
uint32_t flags;
} intr_type_desc_t;
Is It possible to remove the intr_type_desc variable since it is typedef. Please suggest?
Regards,
Nithin
Hi,
Patrick has sent 2 correction patches for PSCI stack in OSI mode there:
https://review.trustedfirmware.org/q/topic:%22fix_psci_osi%22
But when running CI+2, there are 2 platforms for which 2 PSCI OSI tests
are failing:
fvp-ext-pstate-ea-el3|fvp-default|fvp-tftf-fip.tftf-cortexa57x4a53x4-debug
fvp-ext-pstate-ea-el3|fvp-default|fvp-tftf-fip.tftf-aemv8a-debug
I'm not familiar with those test configs, but when checking lava logs,
I see those traces for failing tests:
2024-01-11T14:21:59 > Executing 'CPU suspend to powerdown at level 1 in
OSI mode'
2024-01-11T14:21:59 INFO: Booting
2024-01-11T14:21:59 INFO: Registered IRQ handler 0x8801b274 for IRQ #7
2024-01-11T14:21:59 INFO: Booting
2024-01-11T14:21:59 INFO: Registered IRQ handler 0x8801b274 for IRQ #7
2024-01-11T14:21:59 INFO: Booting
2024-01-11T14:21:59 INFO: Registered IRQ handler 0x8801b274 for IRQ #7
2024-01-11T14:21:59 INFO: Booting
2024-01-11T14:21:59 INFO: Registered IRQ handler 0x8801b274 for IRQ #7
2024-01-11T14:21:59 INFO: Booting
2024-01-11T14:21:59 INFO: Registered IRQ handler 0x8801b274 for IRQ #7
2024-01-11T14:21:59 INFO: Booting
2024-01-11T14:21:59 INFO: Registered IRQ handler 0x8801b274 for IRQ #7
2024-01-11T14:21:59 INFO: Booting
2024-01-11T14:21:59 INFO: Registered IRQ handler 0x8801b274 for IRQ #7
2024-01-11T14:21:59 INFO: Going into suspend state
2024-01-11T14:22:00 INFO: Going into suspend state
2024-01-11T14:22:00 INFO: Going into suspend state
2024-01-11T14:22:00 INFO: Going into suspend state
2024-01-11T14:22:00 INFO: Going into suspend state
2024-01-11T14:22:00 INFO: Going into suspend state
2024-01-11T14:22:00 INFO: Going into suspend state
2024-01-11T14:22:00 INFO: Resumed from suspend state
2024-01-11T14:22:03 INFO: Going into suspend state
2024-01-11T14:22:03 INFO: Resumed from suspend state
2024-01-11T14:22:03 INFO: Unregistered IRQ handler for IRQ #7
2024-01-11T14:22:03 INFO: Powering off
2024-01-11T14:22:03 INFO: Resumed from suspend state
2024-01-11T14:22:03 INFO: Unregistered IRQ handler for IRQ #7
2024-01-11T14:22:03 INFO: Powering off
2024-01-11T14:22:03 INFO: Resumed from suspend state
2024-01-11T14:22:03 INFO: Unregistered IRQ handler for IRQ #7
2024-01-11T14:22:03 INFO: Powering off
2024-01-11T14:22:03 INFO: Resumed from suspend state
2024-01-11T14:22:03 INFO: Unregistered IRQ handler for IRQ #7
2024-01-11T14:22:03 INFO: Powering off
2024-01-11T14:22:03 INFO: Resumed from suspend state
2024-01-11T14:22:03 INFO: Unregistered IRQ handler for IRQ #7
2024-01-11T14:22:03 INFO: Powering off
2024-01-11T14:22:03 INFO: Resumed from suspend state
2024-01-11T14:22:03 INFO: Unregistered IRQ handler for IRQ #7
2024-01-11T14:22:03 INFO: Powering off
2024-01-11T14:22:03 INFO: Unregistered IRQ handler for IRQ #7
2024-01-11T14:22:03 INFO: Powering off
2024-01-11T14:22:03 INFO: Resumed from suspend state
2024-01-11T14:22:03 TEST COMPLETE Failed
2024-01-11T14:22:03 Wrong value: expected 0, got -3
2024-01-11T14:22:03 > Executing 'CPU suspend to powerdown at level 2 in
OSI mode'
2024-01-11T14:22:03 INFO: Booting
2024-01-11T14:22:03 INFO: Registered IRQ handler 0x8801b274 for IRQ #7
2024-01-11T14:22:03 INFO: Booting
2024-01-11T14:22:03 INFO: Registered IRQ handler 0x8801b274 for IRQ #7
2024-01-11T14:22:03 INFO: Booting
2024-01-11T14:22:03 INFO: Registered IRQ handler 0x8801b274 for IRQ #7
2024-01-11T14:22:03 INFO: Booting
2024-01-11T14:22:03 INFO: Registered IRQ handler 0x8801b274 for IRQ #7
2024-01-11T14:22:03 INFO: Booting
2024-01-11T14:22:03 INFO: Registered IRQ handler 0x8801b274 for IRQ #7
2024-01-11T14:22:03 INFO: Booting
2024-01-11T14:22:03 INFO: Registered IRQ handler 0x8801b274 for IRQ #7
2024-01-11T14:22:03 INFO: Booting
2024-01-11T14:22:03 INFO: Registered IRQ handler 0x8801b274 for IRQ #7
2024-01-11T14:22:03 INFO: Going into suspend state
2024-01-11T14:22:03 INFO: Going into suspend state
2024-01-11T14:22:03 INFO: Going into suspend state
2024-01-11T14:22:03 INFO: Going into suspend state
2024-01-11T14:22:03 INFO: Going into suspend state
2024-01-11T14:22:03 INFO: Going into suspend state
2024-01-11T14:22:03 INFO: Going into suspend state
2024-01-11T14:22:03 INFO: Resumed from suspend state
2024-01-11T14:22:03 INFO: Going into suspend state
2024-01-11T14:22:03 INFO: Saving system context
2024-01-11T14:22:03 INFO: Resumed from suspend state
2024-01-11T14:22:03 INFO: Unregistered IRQ handler for IRQ #7
2024-01-11T14:22:03 INFO: Powering off
2024-01-11T14:22:03 INFO: Resumed from suspend state
2024-01-11T14:22:03 INFO: Unregistered IRQ handler for IRQ #7
2024-01-11T14:22:03 INFO: Powering off
2024-01-11T14:22:03 INFO: Resumed from suspend state
2024-01-11T14:22:03 INFO: Unregistered IRQ handler for IRQ #7
2024-01-11T14:22:03 INFO: Powering off
2024-01-11T14:22:03 INFO: Resumed from suspend state
2024-01-11T14:22:03 INFO: Unregistered IRQ handler for IRQ #7
2024-01-11T14:22:03 INFO: Powering off
2024-01-11T14:22:03 INFO: Resumed from suspend state
2024-01-11T14:22:03 INFO: Unregistered IRQ handler for IRQ #7
2024-01-11T14:22:03 INFO: Powering off
2024-01-11T14:22:03 INFO: Resumed from suspend state
2024-01-11T14:22:03 INFO: Unregistered IRQ handler for IRQ #7
2024-01-11T14:22:03 INFO: Powering off
2024-01-11T14:22:03 INFO: Unregistered IRQ handler for IRQ #7
2024-01-11T14:22:03 INFO: Powering off
2024-01-11T14:22:03 INFO: Restoring system context
2024-01-11T14:22:03 INFO: Resumed from suspend state
2024-01-11T14:22:03 TEST COMPLETE Failed
2024-01-11T14:22:03 Wrong value: expected 0, got -3
The "Resumed from suspend state" message interleaved with "Going into
suspend state" seem strange, but I cannot say what could be wrong there.
Maybe there is something wrong with the TF-A patches?
Or the platforms tests or configs need to be updated?
If you have any clue that would be very helpful!
Thanks,
Yann
Hi,
I was looking at imx_hab_handler, which forwards calls into the BootROM on i.MX SoCs
in response to secure monitor calls. The BootROM call (and thus the SiP call) accepts
two pointers as arguments, where it writes data.
The plat/imx/imx8m/imx8m*/imx8m*_bl31_setup.c files map the RAM as MT_MEMORY | MT_RW,
which would mean that not only is it writable from TF-A side, but it's also mapped
cacheable.
I see no explicit cache maintenance in the i.MX SiP code for these two pointer
arguments and haven't been successful to find where in TF-A core code if at all,
complete D-Cache is flushed on SMC exit. Therefore I ask:
- Don't shared non-secure memory buffers between EL3 and lower EL require
explicit cache maintenance?
- Did I miss the place where this cache maintenance is done?
- How did it work so far? barebox does explicit flushing before HAB SiP,
invalidation after. U-Boot doesn't do cache maintenance.
Both apparently work...
Thanks,
Ahmad
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1. misra_c_2012_rule_15_1_violation: Using "goto" statement.
In the file common/bl_common.c and other related files, getting misra_c_2012_rule_15_1_violation: Using "goto" statement. during the Coverity MISRA-C analysis.
if (...) {
goto exit;
}
exit:
some operation
Resolution: goto statement is replaced with exit_func() and new variable is introduced to store the return value of exit_func().
exit_func()
some operation
int ret;
if (...) {
ret = return value of exit func()
}
return ret;
Is it possible to fix MISRA 15.1 like this in open source? Please suggest.
2. misra_c_2012_rule_15_5_violation: This return statement is not the final statement in the compound statement that forms the body of the function.
In the file common/bl_common.c, lib/xlat_tables/aarch64/xlat_tables.c and other related files, getting misra_c_2012_rule_15_5_violation: This return statement is not the final statement in the compound statement that forms the body of the function. during the Coverity MISRA-C analysis.
if (...) {
return <something>
}
if (...) {
return <something>
}
return;
Resolution: Taken new variable and assign the return result to new variable and calling only one return statement in end of the function.
int result;
if (...) {
result = <something>
} else {
if (...) {
result = <something>
}
}
return result;
Is it possible to fix MISRA 15.5 like this in open source? Please suggest.
Thanks & Regards,
Nithin G
Hello,
Trusted Firmware-A LTS version 2.8.14 is now available. This release introduces errata workarounds for Cortex-A520, Cortex-A710, and Neoverse X2 CPUs.
The complete list of changes can be found here<https://trustedfirmware-a.readthedocs.io/en/lts-v2.8.14/change-log.html>.
Thanks.
Hello TF-A and TF-M communities,
I've done 2 minor updates to the generic tf.org project maintenance
process, which TF-A and TF-M both use. Please see the pull request here:
https://github.com/TrustedFirmware/tf_docs/pull/1
Please provide your feedback on the pull request, if any.
Happy end-of-year celebrations to all!
Best regards,
Sandrine