diff options
| author | Peter Maydell <peter.maydell@linaro.org> | 2015-08-25 15:45:08 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2015-08-25 15:45:08 +0100 |
| commit | e76157264da20b85698b09fa5eb8e02e515e232c (patch) | |
| tree | 52d30516838d9ec4e46a46910dc9d80b8825e598 | |
| parent | 2a47df953202e1f226aa045ea974427c4540a167 (diff) | |
target-arm: Add CP_ACCESS_TRAP_UNCATEGORIZED_EL2, 3
Some coprocessor register access functions need to be able
to report "trap to EL3 with an 'uncategorized' syndrome";
add the necessary CPAccessResult enum and handling for it.
I don't currently know of any registers that need to trap
to EL2 with the 'uncategorized' syndrome, but adding the
_EL2 enum as well is trivial and fills in what would
otherwise be an odd gap in the handling.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 1437751263-21913-4-git-send-email-peter.maydell@linaro.org
| -rw-r--r-- | target-arm/cpu.h | 3 | ||||
| -rw-r--r-- | target-arm/op_helper.c | 8 |
2 files changed, 11 insertions, 0 deletions
diff --git a/target-arm/cpu.h b/target-arm/cpu.h index 2e680da1fc..31825d34a1 100644 --- a/target-arm/cpu.h +++ b/target-arm/cpu.h @@ -1284,6 +1284,9 @@ typedef enum CPAccessResult { /* As CP_ACCESS_TRAP, but for traps directly to EL2 or EL3 */ CP_ACCESS_TRAP_EL2 = 3, CP_ACCESS_TRAP_EL3 = 4, + /* As CP_ACCESS_UNCATEGORIZED, but for traps directly to EL2 or EL3 */ + CP_ACCESS_TRAP_UNCATEGORIZED_EL2 = 5, + CP_ACCESS_TRAP_UNCATEGORIZED_EL3 = 6, } CPAccessResult; /* Access functions for coprocessor registers. These cannot fail and diff --git a/target-arm/op_helper.c b/target-arm/op_helper.c index 663c05d1d2..1425a1d4bb 100644 --- a/target-arm/op_helper.c +++ b/target-arm/op_helper.c @@ -444,6 +444,14 @@ void HELPER(access_check_cp_reg)(CPUARMState *env, void *rip, uint32_t syndrome) target_el = exception_target_el(env); syndrome = syn_uncategorized(); break; + case CP_ACCESS_TRAP_UNCATEGORIZED_EL2: + target_el = 2; + syndrome = syn_uncategorized(); + break; + case CP_ACCESS_TRAP_UNCATEGORIZED_EL3: + target_el = 3; + syndrome = syn_uncategorized(); + break; default: g_assert_not_reached(); } |