This is an automated email from Gerrit.
Cheng-Shiun Tsai (cheng.shiun.t...@gmail.com) just uploaded a new patch set to
Gerrit, which you can find at http://openocd.zylin.com/6051
-- gerrit
commit aa45e5e60ce4ab56225b14c8740e04ef8f1e89f2
Author: Cheng-Shiun Tsai <cheng.shiun.t...@gmail.com>
Date: Sat Feb 6 23:04:14 2021 +0000
Aarch64:Switch to EL1 from EL0 before manipulate MMU
If current core is in EL0, it cannot use 'msr sctlr_el1, x0'
Change-Id: I04e60e39e4c84f9d9de7cc87a8e438f5d2737dc3
Signed-off-by:Cheng-Shiun Tsai <cheng.shiun.t...@gmail.com>
diff --git a/src/target/aarch64.c b/src/target/aarch64.c
index d111a05..a411d7a 100644
--- a/src/target/aarch64.c
+++ b/src/target/aarch64.c
@@ -184,9 +184,16 @@ static int aarch64_mmu_modify(struct target *target, int
enable)
LOG_DEBUG("unknown cpu state 0x%x", armv8->arm.core_mode);
break;
}
-
+ if (armv8->arm.core_mode == ARMV8_64_EL0T) {
+ LOG_DEBUG("Switch to EL1 to manipulate MMU");
+ armv8_dpm_modeswitch(&armv8->dpm, ARMV8_64_EL1H);
+ }
retval = armv8->dpm.instr_write_data_r0(&armv8->dpm, instr,
aarch64->system_control_reg_curr);
+ if (armv8->arm.core_mode == ARMV8_64_EL0T) {
+ LOG_DEBUG("Switch back to EL0");
+ armv8_dpm_modeswitch(&armv8->dpm, ARM_MODE_ANY);
+ }
return retval;
}
--
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