From: Deepak Gupta <debug@rivosinc.com>
To: Mark Brown <broonie@kernel.org>
Cc: Vlastimil Babka <vbabka@suse.cz>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
Andrew Morton <akpm@linux-foundation.org>,
"Liam R. Howlett" <Liam.Howlett@oracle.com>,
Lorenzo Stoakes <lorenzo.stoakes@oracle.com>,
Paul Walmsley <paul.walmsley@sifive.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Conor Dooley <conor@kernel.org>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Arnd Bergmann <arnd@arndb.de>,
Christian Brauner <brauner@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Oleg Nesterov <oleg@redhat.com>,
Eric Biederman <ebiederm@xmission.com>,
Kees Cook <kees@kernel.org>, Jonathan Corbet <corbet@lwn.net>,
Shuah Khan <shuah@kernel.org>, Jann Horn <jannh@google.com>,
Conor Dooley <conor+dt@kernel.org>,
linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-mm@kvack.org, linux-riscv@lists.infradead.org,
devicetree@vger.kernel.org, linux-arch@vger.kernel.org,
linux-doc@vger.kernel.org, linux-kselftest@vger.kernel.org,
alistair.francis@wdc.com, richard.henderson@linaro.org,
jim.shu@sifive.com, andybnac@gmail.com, kito.cheng@sifive.com,
charlie@rivosinc.com, atishp@rivosinc.com, evan@rivosinc.com,
cleger@rivosinc.com, alexghiti@rivosinc.com,
samitolvanen@google.com, rick.p.edgecombe@intel.com
Subject: Re: [PATCH v9 01/26] mm: helper `is_shadow_stack_vma` to check shadow stack vma
Date: Fri, 7 Feb 2025 14:44:48 -0800 [thread overview]
Message-ID: <Z6aM4NZyJSGLwIPr@debug.ba.rivosinc.com> (raw)
In-Reply-To: <5708c19d-240a-466a-b17a-d51b26ab95e6@sirena.org.uk>
On Fri, Feb 07, 2025 at 08:06:59PM +0000, Mark Brown wrote:
>On Fri, Feb 07, 2025 at 10:27:10AM +0100, Vlastimil Babka wrote:
>> On 2/5/25 02:21, Deepak Gupta wrote:
>> > VM_SHADOW_STACK (alias to VM_HIGH_ARCH_5) is used to encode shadow stack
>
>> I see that arm GCS uses VM_HIGH_ARCH_6.
>
>That'll be bitrot in the changelog, it was originally VM_HIGH_ARCH_5 on
>arm64 as well but we had to renumber due to the addition of
>VM_MTE_ALLOWED while the GCS series was on the list. The changelog just
>shouldn't mention VM_HIGH_ARCH_x, it's not particularly relevant here.
Yeah noted. Thanks.
WARNING: multiple messages have this Message-ID (diff)
From: Deepak Gupta <debug@rivosinc.com>
To: Mark Brown <broonie@kernel.org>
Cc: Vlastimil Babka <vbabka@suse.cz>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
Andrew Morton <akpm@linux-foundation.org>,
"Liam R. Howlett" <Liam.Howlett@oracle.com>,
Lorenzo Stoakes <lorenzo.stoakes@oracle.com>,
Paul Walmsley <paul.walmsley@sifive.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Conor Dooley <conor@kernel.org>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Arnd Bergmann <arnd@arndb.de>,
Christian Brauner <brauner@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Oleg Nesterov <oleg@redhat.com>,
Eric Biederman <ebiederm@xmission.com>,
Kees Cook <kees@kernel.org>, Jonathan Corbet <corbet@lwn.net>,
Shuah Khan <shuah@kernel.org>, Jann Horn <jannh@google.com>,
Conor Dooley <conor+dt@kernel.org>,
linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-mm@kvack.org, linux-riscv@lists.infradead.org,
devicetree@vger.kernel.org, linux-arch@vger.kernel.org,
linux-doc@vger.kernel.org, linux-kselftest@vger.kernel.org,
alistair.francis@wdc.com, richard.henderson@linaro.org,
jim.shu@sifive.com, andybnac@gmail.com, kito.cheng@sifive.com,
charlie@rivosinc.com, atishp@rivosinc.com, evan@rivosinc.com,
cleger@rivosinc.com, alexghiti@rivosinc.com,
samitolvanen@google.com, rick.p.edgecombe@intel.com
Subject: Re: [PATCH v9 01/26] mm: helper `is_shadow_stack_vma` to check shadow stack vma
Date: Fri, 7 Feb 2025 14:44:48 -0800 [thread overview]
Message-ID: <Z6aM4NZyJSGLwIPr@debug.ba.rivosinc.com> (raw)
In-Reply-To: <5708c19d-240a-466a-b17a-d51b26ab95e6@sirena.org.uk>
On Fri, Feb 07, 2025 at 08:06:59PM +0000, Mark Brown wrote:
>On Fri, Feb 07, 2025 at 10:27:10AM +0100, Vlastimil Babka wrote:
>> On 2/5/25 02:21, Deepak Gupta wrote:
>> > VM_SHADOW_STACK (alias to VM_HIGH_ARCH_5) is used to encode shadow stack
>
>> I see that arm GCS uses VM_HIGH_ARCH_6.
>
>That'll be bitrot in the changelog, it was originally VM_HIGH_ARCH_5 on
>arm64 as well but we had to renumber due to the addition of
>VM_MTE_ALLOWED while the GCS series was on the list. The changelog just
>shouldn't mention VM_HIGH_ARCH_x, it's not particularly relevant here.
Yeah noted. Thanks.
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next prev parent reply other threads:[~2025-02-07 22:44 UTC|newest]
Thread overview: 78+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-05 1:21 [PATCH v9 00/26] riscv control-flow integrity for usermode Deepak Gupta
2025-02-05 1:21 ` Deepak Gupta
2025-02-05 1:21 ` [PATCH v9 01/26] mm: helper `is_shadow_stack_vma` to check shadow stack vma Deepak Gupta
2025-02-05 1:21 ` Deepak Gupta
2025-02-07 9:27 ` Vlastimil Babka
2025-02-07 9:27 ` Vlastimil Babka
2025-02-07 20:06 ` Mark Brown
2025-02-07 20:06 ` Mark Brown
2025-02-07 22:44 ` Deepak Gupta [this message]
2025-02-07 22:44 ` Deepak Gupta
2025-02-07 22:44 ` Deepak Gupta
2025-02-07 22:44 ` Deepak Gupta
2025-02-07 23:44 ` Deepak Gupta
2025-02-07 23:44 ` Deepak Gupta
2025-02-07 23:52 ` Deepak Gupta
2025-02-07 23:52 ` Deepak Gupta
2025-02-05 1:21 ` [PATCH v9 02/26] dt-bindings: riscv: zicfilp and zicfiss in dt-bindings (extensions.yaml) Deepak Gupta
2025-02-05 1:21 ` Deepak Gupta
2026-01-15 3:11 ` Paul Walmsley
2026-01-15 3:11 ` Paul Walmsley
2025-02-05 1:21 ` [PATCH v9 03/26] riscv: zicfiss / zicfilp enumeration Deepak Gupta
2025-02-05 1:21 ` Deepak Gupta
2025-02-06 13:50 ` Clément Léger
2025-02-06 13:50 ` Clément Léger
2025-02-07 23:25 ` Deepak Gupta
2025-02-07 23:25 ` Deepak Gupta
2025-02-05 1:21 ` [PATCH v9 04/26] riscv: zicfiss / zicfilp extension csr and bit definitions Deepak Gupta
2025-02-05 1:21 ` Deepak Gupta
2025-02-05 1:21 ` [PATCH v9 05/26] riscv: usercfi state for task and save/restore of CSR_SSP on trap entry/exit Deepak Gupta
2025-02-05 1:21 ` Deepak Gupta
2025-02-05 1:21 ` [PATCH v9 06/26] riscv/mm : ensure PROT_WRITE leads to VM_READ | VM_WRITE Deepak Gupta
2025-02-05 1:21 ` Deepak Gupta
2025-02-05 1:21 ` [PATCH v9 07/26] riscv mm: manufacture shadow stack pte Deepak Gupta
2025-02-05 1:21 ` Deepak Gupta
2025-02-05 1:21 ` [PATCH v9 08/26] riscv mmu: teach pte_mkwrite to manufacture shadow stack PTEs Deepak Gupta
2025-02-05 1:21 ` Deepak Gupta
2025-02-05 1:21 ` [PATCH v9 09/26] riscv mmu: write protect and shadow stack Deepak Gupta
2025-02-05 1:21 ` Deepak Gupta
2025-02-05 1:21 ` [PATCH v9 10/26] riscv/mm: Implement map_shadow_stack() syscall Deepak Gupta
2025-02-05 1:21 ` Deepak Gupta
2025-02-05 1:21 ` [PATCH v9 11/26] riscv/shstk: If needed allocate a new shadow stack on clone Deepak Gupta
2025-02-05 1:21 ` Deepak Gupta
2025-02-05 1:21 ` [PATCH v9 12/26] riscv: Implements arch agnostic shadow stack prctls Deepak Gupta
2025-02-05 1:21 ` Deepak Gupta
2025-02-05 1:22 ` [PATCH v9 13/26] prctl: arch-agnostic prctl for indirect branch tracking Deepak Gupta
2025-02-05 1:22 ` Deepak Gupta
2025-02-05 1:22 ` [PATCH v9 14/26] riscv/traps: Introduce software check exception Deepak Gupta
2025-02-05 1:22 ` Deepak Gupta
2025-02-06 13:49 ` Clément Léger
2025-02-06 13:49 ` Clément Léger
2025-02-07 21:26 ` Deepak Gupta
2025-02-07 21:26 ` Deepak Gupta
2025-02-10 7:42 ` Clément Léger
2025-02-10 7:42 ` Clément Léger
2025-02-05 1:22 ` [PATCH v9 15/26] riscv: signal: abstract header saving for setup_sigcontext Deepak Gupta
2025-02-05 1:22 ` Deepak Gupta
2025-02-05 1:22 ` [PATCH v9 16/26] riscv/signal: save and restore of shadow stack for signal Deepak Gupta
2025-02-05 1:22 ` Deepak Gupta
2025-02-05 1:22 ` [PATCH v9 17/26] riscv/kernel: update __show_regs to print shadow stack register Deepak Gupta
2025-02-05 1:22 ` Deepak Gupta
2025-02-05 1:22 ` [PATCH v9 18/26] riscv/ptrace: riscv cfi status and state via ptrace and in core files Deepak Gupta
2025-02-05 1:22 ` Deepak Gupta
2025-02-05 1:22 ` [PATCH v9 19/26] riscv/hwprobe: zicfilp / zicfiss enumeration in hwprobe Deepak Gupta
2025-02-05 1:22 ` Deepak Gupta
2025-02-05 1:22 ` [PATCH v9 20/26] riscv: Add Firmware Feature SBI extensions definitions Deepak Gupta
2025-02-05 1:22 ` Deepak Gupta
2025-02-05 1:22 ` [PATCH v9 21/26] riscv: enable kernel access to shadow stack memory via FWFT sbi call Deepak Gupta
2025-02-05 1:22 ` Deepak Gupta
2025-02-05 1:22 ` [PATCH v9 22/26] riscv: kernel command line option to opt out of user cfi Deepak Gupta
2025-02-05 1:22 ` Deepak Gupta
2025-02-05 1:22 ` [PATCH v9 23/26] riscv: create a config for shadow stack and landing pad instr support Deepak Gupta
2025-02-05 1:22 ` Deepak Gupta
2025-02-05 1:22 ` [PATCH v9 24/26] riscv: Documentation for landing pad / indirect branch tracking Deepak Gupta
2025-02-05 1:22 ` Deepak Gupta
2025-02-05 1:22 ` [PATCH v9 25/26] riscv: Documentation for shadow stack on riscv Deepak Gupta
2025-02-05 1:22 ` Deepak Gupta
2025-02-05 1:22 ` [PATCH v9 26/26] kselftest/riscv: kselftest for user mode cfi Deepak Gupta
2025-02-05 1:22 ` Deepak Gupta
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