On Thu, Jan 21, 2021 at 04:39:41PM +, Vincenzo Frascino wrote:
> MTE provides a mode that asynchronously updates the TFSR_EL1 register
> when a tag check exception is detected.
>
> To take advantage of this mode the kernel has to verify the status of
> the register at:
> 1. Context
On 1/21/21 5:38 PM, Andrey Konovalov wrote:
>> + if (unlikely(tfsr_el1 & SYS_TFSR_EL1_TF1)) {
>> + /*
>> +* Note: isb() is not required after this direct write
>> +* because there is no indirect read subsequent to it
>> +* (per
On Thu, Jan 21, 2021 at 5:40 PM Vincenzo Frascino
wrote:
>
> MTE provides a mode that asynchronously updates the TFSR_EL1 register
> when a tag check exception is detected.
>
> To take advantage of this mode the kernel has to verify the status of
> the register at:
> 1. Context switching
> 2.
MTE provides a mode that asynchronously updates the TFSR_EL1 register
when a tag check exception is detected.
To take advantage of this mode the kernel has to verify the status of
the register at:
1. Context switching
2. Return to user/EL0 (Not required in entry from EL0 since the kernel
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