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Fri, 02 May 2025 16:30:43 -0700 (PDT) From: Deepak Gupta Date: Fri, 02 May 2025 16:30:32 -0700 Subject: [PATCH v15 01/27] mm: VM_SHADOW_STACK definition for riscv MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20250502-v5_user_cfi_series-v15-1-914966471885@rivosinc.com> References: <20250502-v5_user_cfi_series-v15-0-914966471885@rivosinc.com> In-Reply-To: <20250502-v5_user_cfi_series-v15-0-914966471885@rivosinc.com> To: Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. 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Howlett" , Vlastimil Babka , Lorenzo Stoakes , Paul Walmsley , Palmer Dabbelt , Albert Ou , Conor Dooley , Rob Herring , Krzysztof Kozlowski , Arnd Bergmann , Christian Brauner , Peter Zijlstra , Oleg Nesterov , Eric Biederman , Kees Cook , Jonathan Corbet , Shuah Khan , Jann Horn , Conor Dooley , Miguel Ojeda , Alex Gaynor , Boqun Feng , Gary Guo , =?utf-8?q?Bj=C3=B6rn_Roy_Baron?= , Benno Lossin , Andreas Hindborg , Alice Ryhl , Trevor Gross Cc: 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, broonie@kernel.org, rick.p.edgecombe@intel.com, rust-for-linux@vger.kernel.org, Zong Li , Deepak Gupta X-Mailer: b4 0.13.0 X-Stat-Signature: 9y14fgka5g7u163i9uo94m5urr8yzear X-Rspamd-Queue-Id: 20A97A0009 X-Rspam-User: X-Rspamd-Server: rspam05 X-HE-Tag: 1746228644-99377 X-HE-Meta: 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 M/cyqXLs 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: VM_HIGH_ARCH_5 is used for riscv Reviewed-by: Zong Li Reviewed-by: Alexandre Ghiti Signed-off-by: Deepak Gupta --- include/linux/mm.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/include/linux/mm.h b/include/linux/mm.h index b7f13f087954..3487f28fa0bf 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -352,6 +352,13 @@ extern unsigned int kobjsize(const void *objp); # define VM_SHADOW_STACK VM_HIGH_ARCH_6 #endif +#if defined(CONFIG_RISCV_USER_CFI) +/* + * Following x86 and picking up the same bitpos. + */ +# define VM_SHADOW_STACK VM_HIGH_ARCH_5 +#endif + #ifndef VM_SHADOW_STACK # define VM_SHADOW_STACK VM_NONE #endif -- 2.43.0