Thread (40 messages) 40 messages, 10 authors, 2024-10-16

Re: [PATCH v5 7/8] execmem: add support for cache of large ROX pages

From: Mike Rapoport <rppt@kernel.org>
Date: 2024-10-14 13:11:32
Also in: bpf, linux-alpha, linux-arch, linux-m68k, linux-mips, linux-mm, linux-modules, linux-riscv, linux-sh, linux-trace-kernel, linux-um, lkml, loongarch, sparclinux

On Sun, Oct 13, 2024 at 10:55:25PM -0700, Christoph Hellwig wrote:
On Sun, Oct 13, 2024 at 11:43:41AM +0300, Mike Rapoport wrote:
quoted
quoted
But why?  That's pretty different from our normal style of arch hooks,
and introduces an indirect call in a security sensitive area.
Will change to __weak hook. 
Isn't the callback required when using the large ROX page?  I.e.
shouldn't it be an unconditional callback and not a weak override?
I'll add a Kconfig option to ensure that an architecture that wants to use
large ROX pages has explicit callback for that.

-- 
Sincerely yours,
Mike.
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