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Thu, 24 Apr 2025 00:20:24 -0700 (PDT) From: Deepak Gupta Date: Thu, 24 Apr 2025 00:20:16 -0700 Subject: [PATCH v13 01/28] mm: VM_SHADOW_STACK definition for riscv MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20250424-v5_user_cfi_series-v13-1-971437de586a@rivosinc.com> References: <20250424-v5_user_cfi_series-v13-0-971437de586a@rivosinc.com> In-Reply-To: <20250424-v5_user_cfi_series-v13-0-971437de586a@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-Rspam-User: X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: 9D6778000B X-Stat-Signature: wsu9kq8kyqo8yaedhiqecenbjzmbogo7 X-HE-Tag: 1745479225-564175 X-HE-Meta: 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 lOckFhqt 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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 7b1068ddcbb7..1ef231cbc8fe 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -378,6 +378,13 @@ 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