On Mon, Dec 13, 2021 at 4:17 PM Vincenzo Frascino
[off-list ref] wrote:

Hi Andrey,

On 12/6/21 9:44 PM, andrey.konovalov@linux.dev wrote:

quoted

From: Andrey Konovalov <redacted>

HW_TAGS KASAN relies on ARM Memory Tagging Extension (MTE). With MTE,
a memory region must be mapped as MT_NORMAL_TAGGED to allow setting
memory tags via MTE-specific instructions.

This change adds proper protection bits to vmalloc() allocations.

Please avoid "this patch/this change" in patch description and use imperative
mode as if you are giving a command to the code base ([1] paragraph 2).

Hi Vincenzo,

Done in v3.

quoted

These allocations are always backed by page_alloc pages, so the tags
will actually be getting set on the corresponding physical memory.

Signed-off-by: Andrey Konovalov <redacted>
Co-developed-by: Vincenzo Frascino <vincenzo.frascino@arm.com>

With the change to the commit message:

Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>

Thanks!

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