diff --git a/src/target/armv8.c b/src/target/armv8.c index e8c189c1c..a537d610c 100644 --- a/src/target/armv8.c +++ b/src/target/armv8.c @@ -319,6 +319,11 @@ static int armv8_read_reg(struct armv8_common *armv8, int regnum, uint64_t *regv ARMV8_MRS(SYSTEM_ELR_EL1, 0), &value_64); break; case ARMV8_ELR_EL2: + if (curel < SYSTEM_CUREL_EL2) { + LOG_DEBUG("ELR_EL2 not accessible in EL%u", curel); + retval = ERROR_FAIL; + break; + } retval = dpm->instr_read_data_r0_64(dpm, ARMV8_MRS(SYSTEM_ELR_EL2, 0), &value_64); break; @@ -454,6 +459,11 @@ static int armv8_write_reg(struct armv8_common *armv8, int regnum, uint64_t valu ARMV8_MSR_GP(SYSTEM_ELR_EL1, 0), value_64); break; case ARMV8_ELR_EL2: + if (curel < SYSTEM_CUREL_EL2) { + LOG_DEBUG("ELR_EL2 not accessible in EL%u", curel); + retval = ERROR_FAIL; + break; + } retval = dpm->instr_write_data_r0_64(dpm, ARMV8_MSR_GP(SYSTEM_ELR_EL2, 0), value_64); break;