[PATCH v9 30/44] arm64: kasan: Allow enabling in-kernel MTE

[Vincenzo Frascino]

On 11/13/20 12:00 PM, Catalin Marinas wrote:
> On Fri, Nov 13, 2020 at 11:17:15AM +0000, Vincenzo Frascino wrote:
>> On 11/12/20 9:43 AM, Catalin Marinas wrote:
>>> On Tue, Nov 10, 2020 at 11:10:27PM +0100, Andrey Konovalov wrote:
>>>> From: Vincenzo Frascino <vincenzo.frascino at arm.com>
>>>>
>>>> Hardware tag-based KASAN relies on Memory Tagging Extension (MTE)
>>>> feature and requires it to be enabled. MTE supports
>>>>
>>>> This patch adds a new mte_init_tags() helper, that enables MTE in
>>>> Synchronous mode in EL1 and is intended to be called from KASAN runtime
>>>> during initialization.
>>>
>>> There's no mte_init_tags() in this function.
>>
>> During the rework, I realized that the description of mte_init_tags() in this
>> patch refers to mte_enable_kernel(). In fact the only thing that mte_init_tags()
>> does is to configure the GCR_EL1 register, hence my preference would be to keep
>> all the code that deals with such a register in one patch.
> 
> Fine by me as long as the commit text is consistent with the diff.
> 

Done already, it will be in the next series. Thank you for the quick turnaround.

-- 
Regards,
Vincenzo