Re: [PATCH v2 02/17] linux-user: Introduce PAGE_ANON

[Peter Maydell]

On Fri, 5 Jun 2020 at 05:17, Richard Henderson
<richard.henderson@linaro.org> wrote:
>
> Record whether the backing page is anonymous, or if it has file
> backing.  This will allow us to get close to the Linux AArch64
> ABI for MTE, which allows tag memory only on ram-backed VMAs.
>
> The real ABI allows tag memory on files, when those files are
> on ram-backed filesystems, such as tmpfs.  We will not be able
> to implement that in QEMU linux-user.
>
> Thankfully, anonymous memory for malloc arenas is the primary
> consumer of this feature, so this restricted version should
> still be of use.
>
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>

thanks
-- PMM