From: Mark Brown <broonie@kernel.org>
To: Catalin Marinas <catalin.marinas@arm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
David Hildenbrand <david@kernel.org>,
Deepak Gupta <debug@rivosinc.com>,
Rick Edgecombe <rick.p.edgecombe@intel.com>,
Will Deacon <will@kernel.org>, Paul Walmsley <pjw@kernel.org>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Alexandre Ghiti <alex@ghiti.fr>,
Thomas Gleixner <tglx@kernel.org>, Ingo Molnar <mingo@redhat.com>,
Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
"H. Peter Anvin" <hpa@zytor.com>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org,
linux-mm@kvack.org
Subject: Re: [PATCH 1/5] mm: Introduce vm_mmap_shadow_stack() as a helper for VM_SHADOW_STACK mappings
Date: Wed, 25 Feb 2026 12:25:59 +0000 [thread overview]
Message-ID: <ba0e7ac0-d8b0-4ef9-904a-4ffa848ece7e@sirena.org.uk> (raw)
In-Reply-To: <20260224175800.2500729-2-catalin.marinas@arm.com>
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On Tue, Feb 24, 2026 at 05:57:53PM +0000, Catalin Marinas wrote:
> arm64, riscv and x86 use a similar pattern for mapping the user shadow
> stack (cloned from x86). Extract this into a helper to facilitate code
> reuse.
Thanks for following up on factoring this out. This looks good to me,
with or without the removal of the ifdefs that Rick suggested:
Reviewed-by: Mark Brown <broonie@kernel.org>
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next prev parent reply other threads:[~2026-02-25 12:26 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-24 17:57 [PATCH 0/5] mm: arch/shstk: Common shadow stack mapping helper and VM_NOHUGEPAGE Catalin Marinas
2026-02-24 17:57 ` [PATCH 1/5] mm: Introduce vm_mmap_shadow_stack() as a helper for VM_SHADOW_STACK mappings Catalin Marinas
2026-02-24 19:47 ` Edgecombe, Rick P
2026-02-25 12:25 ` Mark Brown [this message]
2026-02-25 13:32 ` David Hildenbrand (Arm)
2026-02-24 17:57 ` [PATCH 2/5] arm64: gcs: Use the new common vm_mmap_shadow_stack() helper Catalin Marinas
2026-02-25 13:32 ` David Hildenbrand (Arm)
2026-02-25 13:41 ` Mark Brown
2026-02-24 17:57 ` [PATCH 3/5] riscv: shstk: " Catalin Marinas
2026-02-25 13:33 ` David Hildenbrand (Arm)
2026-02-24 17:57 ` [PATCH 4/5] x86: " Catalin Marinas
2026-02-24 19:47 ` Edgecombe, Rick P
2026-02-25 8:12 ` Catalin Marinas
2026-02-25 13:33 ` David Hildenbrand (Arm)
2026-02-24 17:57 ` [PATCH 5/5] mm: Do not map the shadow stack as THP Catalin Marinas
2026-02-25 13:02 ` Mark Brown
2026-02-25 13:34 ` David Hildenbrand (Arm)
2026-02-25 0:06 ` [PATCH 0/5] mm: arch/shstk: Common shadow stack mapping helper and VM_NOHUGEPAGE Deepak Gupta
2026-02-25 8:08 ` Catalin Marinas
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