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From: Sami Tolvanen <samitolvanen@google.com>
Date: Wed, 17 Jan 2024 12:29:12 -0800
Message-ID: <CABCJKudpbeJ+Orie3oMiWrYS0qsh+ZxXbz9tTJcHKvJjiOX+=Q@mail.gmail.com>
Subject: Re: [PATCH 0/2] riscv: Increase mmap_rnd_bits_max on Sv48/57
To: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>, aou@eecs.berkeley.edu, 
	akpm@linux-foundation.org, keescook@chromium.org, linux-mm@kvack.org, 
	linux-riscv@lists.infradead.org, llvm@lists.linux.dev, 
	linux-kernel@vger.kernel.org
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Hi Palmer,

On Wed, Dec 6, 2023 at 5:14=E2=80=AFAM Palmer Dabbelt <palmer@dabbelt.com> =
wrote:
>
> On Fri, 29 Sep 2023 14:11:56 PDT (-0700), samitolvanen@google.com wrote:
> > Hi all,
> >
> > We noticed that 64-bit RISC-V kernels limit mmap_rnd_bits to 24
> > even if the hardware supports a larger virtual address space size
> > [1]. These two patches allow mmap_rnd_bits_max to be changed during
> > init, and bumps up the maximum randomness if we end up setting up
> > 4/5-level paging at boot.
>
> Sorry for missing this, I'm just poking through old stuff in patchwork.
> As far as I can tell this is still relevant, the discussions are just on
> the mmap() bits (but we'd already screwed that one up and have since
> fixed it).
>
> So
>
> Reviewed-by: Palmer Dabbelt <palmer@rivosinc.com>
> Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
>
> in case someone else wants to take it, but I'm OK taking that MM patch
> with Kees' review.

Is this still on your radar for v6.8 or would you prefer me to resend
the patches?

Sami