From: Deepak Gupta <debug@rivosinc.com>
To: "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>,
"Vlastimil Babka" <vbabka@suse.cz>,
"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>,
"Miguel Ojeda" <ojeda@kernel.org>,
"Alex Gaynor" <alex.gaynor@gmail.com>,
"Boqun Feng" <boqun.feng@gmail.com>,
"Gary Guo" <gary@garyguo.net>,
"Björn Roy Baron" <bjorn3_gh@protonmail.com>,
"Andreas Hindborg" <a.hindborg@kernel.org>,
"Alice Ryhl" <aliceryhl@google.com>,
"Trevor Gross" <tmgross@umich.edu>,
"Benno Lossin" <lossin@kernel.org>
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 <zong.li@sifive.com>,
David Hildenbrand <david@redhat.com>,
Deepak Gupta <debug@rivosinc.com>
Subject: [PATCH v22 01/28] mm: VM_SHADOW_STACK definition for riscv
Date: Mon, 20 Oct 2025 13:22:30 -0700 [thread overview]
Message-ID: <20251020-v5_user_cfi_series-v22-1-66732256ad8f@rivosinc.com> (raw)
In-Reply-To: <20251020-v5_user_cfi_series-v22-0-66732256ad8f@rivosinc.com>
VM_HIGH_ARCH_5 is used for riscv
Reviewed-by: Zong Li <zong.li@sifive.com>
Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Acked-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Deepak Gupta <debug@rivosinc.com>
---
include/linux/mm.h | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/include/linux/mm.h b/include/linux/mm.h
index d16b33bacc32..2032d3f195f1 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -380,6 +380,13 @@ 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
--
2.45.0
next prev parent reply other threads:[~2025-10-20 20:22 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-20 20:22 [PATCH v22 00/28] riscv control-flow integrity for usermode Deepak Gupta
2025-10-20 20:22 ` Deepak Gupta [this message]
2025-10-20 20:22 ` [PATCH v22 02/28] dt-bindings: riscv: zicfilp and zicfiss in dt-bindings (extensions.yaml) Deepak Gupta
2025-10-20 20:22 ` [PATCH v22 03/28] riscv: zicfiss / zicfilp enumeration Deepak Gupta
2025-10-20 20:22 ` [PATCH v22 04/28] riscv: zicfiss / zicfilp extension csr and bit definitions Deepak Gupta
2025-10-20 20:22 ` [PATCH v22 05/28] riscv: usercfi state for task and save/restore of CSR_SSP on trap entry/exit Deepak Gupta
2025-10-20 20:22 ` [PATCH v22 06/28] riscv/mm : ensure PROT_WRITE leads to VM_READ | VM_WRITE Deepak Gupta
2025-10-20 20:22 ` [PATCH v22 07/28] riscv/mm: manufacture shadow stack pte Deepak Gupta
2025-10-20 20:22 ` [PATCH v22 08/28] riscv/mm: teach pte_mkwrite to manufacture shadow stack PTEs Deepak Gupta
2025-10-20 20:22 ` [PATCH v22 09/28] riscv/mm: write protect and shadow stack Deepak Gupta
2025-10-20 20:22 ` [PATCH v22 10/28] riscv/mm: Implement map_shadow_stack() syscall Deepak Gupta
2025-10-20 20:22 ` [PATCH v22 11/28] riscv/shstk: If needed allocate a new shadow stack on clone Deepak Gupta
2025-10-20 20:22 ` [PATCH v22 12/28] riscv: Implements arch agnostic shadow stack prctls Deepak Gupta
2025-10-20 20:22 ` [PATCH v22 13/28] prctl: arch-agnostic prctl for indirect branch tracking Deepak Gupta
2025-10-20 20:22 ` [PATCH v22 14/28] riscv: Implements arch agnostic indirect branch tracking prctls Deepak Gupta
2025-10-20 20:53 ` [PATCH v22 00/28] riscv control-flow integrity for usermode Deepak Gupta
2025-10-20 21:13 ` Darrick J. Wong
2025-10-20 20:53 Deepak Gupta
2025-10-20 20:53 ` [PATCH v22 01/28] mm: VM_SHADOW_STACK definition for riscv Deepak Gupta
2025-10-22 23:29 [PATCH v22 00/28] riscv control-flow integrity for usermode Deepak Gupta
2025-10-22 23:29 ` [PATCH v22 01/28] mm: VM_SHADOW_STACK definition for riscv Deepak Gupta
2025-10-23 13:25 [PATCH v22 00/28] riscv control-flow integrity for usermode Deepak Gupta
2025-10-23 13:25 ` [PATCH v22 01/28] mm: VM_SHADOW_STACK definition for riscv Deepak Gupta
2025-10-23 16:51 [PATCH v22 00/28] riscv control-flow integrity for usermode Deepak Gupta via B4 Relay
2025-10-23 16:51 ` [PATCH v22 01/28] mm: VM_SHADOW_STACK definition for riscv Deepak Gupta via B4 Relay
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