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arm64/sysreg: Update PIE permission encodings

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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>
This commit is contained in:
Shiqi Liu 2024-04-21 14:33:28 +08:00 committed by Will Deacon
parent f4d9d9dcc7
commit 12d712dc8e
2 changed files with 24 additions and 24 deletions
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24
arch/arm64/include/asm/sysreg.h
View file

@ -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))

24
tools/arch/arm64/include/asm/sysreg.h
View file

@ -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))