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From: Catalin Marinas <catalin.marinas@arm.com>
To: Deepak Gupta <debug@rivosinc.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	David Hildenbrand <david@kernel.org>,
	Mark Brown <broonie@kernel.org>,
	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>,
	Kito Cheng <kito.cheng@sifive.com>,
	Jesse Huang <jesse.huang@sifive.com>,
	valentin.haudiquet@canonical.com,
	heinrich.schuchardt@canonical.com,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org,
	linux-mm@kvack.org
Subject: Re: [PATCH 0/5] mm: arch/shstk: Common shadow stack mapping helper and VM_NOHUGEPAGE
Date: Wed, 25 Feb 2026 08:08:41 +0000	[thread overview]
Message-ID: <aZ6uCceePh73wcMP@arm.com> (raw)
In-Reply-To: <aZ489QDHxEZfLydn@debug.ba.rivosinc.com>

Hi Deepak,

On Tue, Feb 24, 2026 at 04:06:13PM -0800, Deepak Gupta wrote:
> On Tue, Feb 24, 2026 at 05:57:52PM +0000, Catalin Marinas wrote:
> > arm64, riscv and x86 all implement shadow stack support and use a
> > similar pattern for mapping the user shadow stack (originally cloned
> > from x86). Extract this common pattern into a shared helper -
> > vm_mmap_shadow_stack().
[...]
> FWIW, I applied your patches on v7.0-rc1 and risc-v cfi kselftest passes
[...]
> So you can tag tested by for risc-v.

That's great, thanks!

-- 
Catalin


WARNING: multiple messages have this Message-ID (diff)
From: Catalin Marinas <catalin.marinas@arm.com>
To: Deepak Gupta <debug@rivosinc.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	David Hildenbrand <david@kernel.org>,
	Mark Brown <broonie@kernel.org>,
	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>,
	Kito Cheng <kito.cheng@sifive.com>,
	Jesse Huang <jesse.huang@sifive.com>,
	valentin.haudiquet@canonical.com,
	heinrich.schuchardt@canonical.com,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org,
	linux-mm@kvack.org
Subject: Re: [PATCH 0/5] mm: arch/shstk: Common shadow stack mapping helper and VM_NOHUGEPAGE
Date: Wed, 25 Feb 2026 08:08:41 +0000	[thread overview]
Message-ID: <aZ6uCceePh73wcMP@arm.com> (raw)
In-Reply-To: <aZ489QDHxEZfLydn@debug.ba.rivosinc.com>

Hi Deepak,

On Tue, Feb 24, 2026 at 04:06:13PM -0800, Deepak Gupta wrote:
> On Tue, Feb 24, 2026 at 05:57:52PM +0000, Catalin Marinas wrote:
> > arm64, riscv and x86 all implement shadow stack support and use a
> > similar pattern for mapping the user shadow stack (originally cloned
> > from x86). Extract this common pattern into a shared helper -
> > vm_mmap_shadow_stack().
[...]
> FWIW, I applied your patches on v7.0-rc1 and risc-v cfi kselftest passes
[...]
> So you can tag tested by for risc-v.

That's great, thanks!

-- 
Catalin

_______________________________________________
linux-riscv mailing list
linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv

  reply	other threads:[~2026-02-25  8:09 UTC|newest]

Thread overview: 42+ 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 ` 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 17:57   ` Catalin Marinas
2026-02-24 19:47   ` Edgecombe, Rick P
2026-02-24 19:47     ` Edgecombe, Rick P
2026-02-25 12:25   ` Mark Brown
2026-02-25 12:25     ` Mark Brown
2026-02-25 13:32   ` David Hildenbrand (Arm)
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
2026-02-24 17:57   ` Catalin Marinas
2026-02-25 13:32   ` David Hildenbrand (Arm)
2026-02-25 13:32     ` David Hildenbrand (Arm)
2026-02-25 13:41   ` Mark Brown
2026-02-25 13:41     ` Mark Brown
2026-02-24 17:57 ` [PATCH 3/5] riscv: shstk: " Catalin Marinas
2026-02-24 17:57   ` Catalin Marinas
2026-02-25 13:33   ` David Hildenbrand (Arm)
2026-02-25 13:33     ` David Hildenbrand (Arm)
2026-02-24 17:57 ` [PATCH 4/5] x86: " Catalin Marinas
2026-02-24 17:57   ` Catalin Marinas
2026-02-24 19:47   ` Edgecombe, Rick P
2026-02-24 19:47     ` Edgecombe, Rick P
2026-02-25  8:12     ` Catalin Marinas
2026-02-25  8:12       ` Catalin Marinas
2026-02-25 13:33   ` David Hildenbrand (Arm)
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
2026-02-24 17:57   ` Catalin Marinas
2026-02-25 13:02   ` Mark Brown
2026-02-25 13:02     ` Mark Brown
2026-02-25 15:51     ` Catalin Marinas
2026-02-25 15:51       ` Catalin Marinas
2026-02-25 16:10       ` Mark Brown
2026-02-25 16:10         ` Mark Brown
2026-02-25 13:34   ` David Hildenbrand (Arm)
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  0:06   ` Deepak Gupta
2026-02-25  8:08   ` Catalin Marinas [this message]
2026-02-25  8:08     ` Catalin Marinas

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