diff options
| author | Will Deacon <will@kernel.org> | 2019-07-16 08:14:19 +0100 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2019-08-05 11:06:34 +0100 |
| commit | 332e5281a4e8269b96233a7babc98b03596b7e6d (patch) | |
| tree | ec5a3d83d58b8ac53540ce6fff75f08edf4ea9a9 /arch/arm64/include/asm | |
| parent | b3e089cd446b26bb1e12860e1afb9da314453fd6 (diff) | |
arm64: esr: Add ESR exception class encoding for trapped ERET
The ESR.EC encoding of 0b011010 (0x1a) describes an exception generated
by an ERET, ERETAA or ERETAB instruction as a result of a nested
virtualisation trap to EL2.
Add an encoding for this EC and a string description so that we identify
it correctly if we take one unexpectedly.
Acked-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'arch/arm64/include/asm')
| -rw-r--r-- | arch/arm64/include/asm/esr.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm64/include/asm/esr.h b/arch/arm64/include/asm/esr.h index 65ac18400979..cb29253ae86b 100644 --- a/arch/arm64/include/asm/esr.h +++ b/arch/arm64/include/asm/esr.h @@ -34,7 +34,8 @@ #define ESR_ELx_EC_SMC64 (0x17) /* EL2 and above */ #define ESR_ELx_EC_SYS64 (0x18) #define ESR_ELx_EC_SVE (0x19) -/* Unallocated EC: 0x1A - 0x1E */ +#define ESR_ELx_EC_ERET (0x1a) /* EL2 only */ +/* Unallocated EC: 0x1b - 0x1E */ #define ESR_ELx_EC_IMP_DEF (0x1f) /* EL3 only */ #define ESR_ELx_EC_IABT_LOW (0x20) #define ESR_ELx_EC_IABT_CUR (0x21) |