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authorShiqi Liu <shiqiliu@hust.edu.cn>2024-04-21 09:33:28 +0300
committerWill Deacon <will@kernel.org>2024-04-28 10:28:27 +0300
commit12d712dc8e4f1a30b18f8c3789adfbc07f5eb050 (patch)
tree5536cda0155aa7d8322bcc6e01abc59178afaf60
parentf4d9d9dcc70b96b5e5d7801bd5fbf8491b07b13d (diff)
downloadlinux-12d712dc8e4f1a30b18f8c3789adfbc07f5eb050.tar.xz
arm64/sysreg: Update PIE permission encodings
Fix left shift overflow issue when the parameter idx is greater than or equal to 8 in the calculation of perm in PIRx_ELx_PERM macro. Fix this by modifying the encoding to use a long integer type. Signed-off-by: Shiqi Liu <shiqiliu@hust.edu.cn> Acked-by: Marc Zyngier <maz@kernel.org> Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Link: https://lore.kernel.org/r/20240421063328.29710-1-shiqiliu@hust.edu.cn Signed-off-by: Will Deacon <will@kernel.org>
-rw-r--r--arch/arm64/include/asm/sysreg.h24
-rw-r--r--tools/arch/arm64/include/asm/sysreg.h24
2 files changed, 24 insertions, 24 deletions
diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index 9e8999592f3a..af3b206fa423 100644
--- a/arch/arm64/include/asm/sysreg.h
+++ b/arch/arm64/include/asm/sysreg.h
@@ -1036,18 +1036,18 @@
* Permission Indirection Extension (PIE) permission encodings.
* Encodings with the _O suffix, have overlays applied (Permission Overlay Extension).
*/
-#define PIE_NONE_O 0x0
-#define PIE_R_O 0x1
-#define PIE_X_O 0x2
-#define PIE_RX_O 0x3
-#define PIE_RW_O 0x5
-#define PIE_RWnX_O 0x6
-#define PIE_RWX_O 0x7
-#define PIE_R 0x8
-#define PIE_GCS 0x9
-#define PIE_RX 0xa
-#define PIE_RW 0xc
-#define PIE_RWX 0xe
+#define PIE_NONE_O UL(0x0)
+#define PIE_R_O UL(0x1)
+#define PIE_X_O UL(0x2)
+#define PIE_RX_O UL(0x3)
+#define PIE_RW_O UL(0x5)
+#define PIE_RWnX_O UL(0x6)
+#define PIE_RWX_O UL(0x7)
+#define PIE_R UL(0x8)
+#define PIE_GCS UL(0x9)
+#define PIE_RX UL(0xa)
+#define PIE_RW UL(0xc)
+#define PIE_RWX UL(0xe)
#define PIRx_ELx_PERM(idx, perm) ((perm) << ((idx) * 4))
diff --git a/tools/arch/arm64/include/asm/sysreg.h b/tools/arch/arm64/include/asm/sysreg.h
index ccc13e991376..cd8420e8c3ad 100644
--- a/tools/arch/arm64/include/asm/sysreg.h
+++ b/tools/arch/arm64/include/asm/sysreg.h
@@ -701,18 +701,18 @@
* Permission Indirection Extension (PIE) permission encodings.
* Encodings with the _O suffix, have overlays applied (Permission Overlay Extension).
*/
-#define PIE_NONE_O 0x0
-#define PIE_R_O 0x1
-#define PIE_X_O 0x2
-#define PIE_RX_O 0x3
-#define PIE_RW_O 0x5
-#define PIE_RWnX_O 0x6
-#define PIE_RWX_O 0x7
-#define PIE_R 0x8
-#define PIE_GCS 0x9
-#define PIE_RX 0xa
-#define PIE_RW 0xc
-#define PIE_RWX 0xe
+#define PIE_NONE_O UL(0x0)
+#define PIE_R_O UL(0x1)
+#define PIE_X_O UL(0x2)
+#define PIE_RX_O UL(0x3)
+#define PIE_RW_O UL(0x5)
+#define PIE_RWnX_O UL(0x6)
+#define PIE_RWX_O UL(0x7)
+#define PIE_R UL(0x8)
+#define PIE_GCS UL(0x9)
+#define PIE_RX UL(0xa)
+#define PIE_RW UL(0xc)
+#define PIE_RWX UL(0xe)
#define PIRx_ELx_PERM(idx, perm) ((perm) << ((idx) * 4))