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[PATCH 04/29] target/arm: hide all versions of DBGD[RS]AR from gdbstub


From: Alex Bennée
Subject: [PATCH 04/29] target/arm: hide all versions of DBGD[RS]AR from gdbstub
Date: Fri, 3 Nov 2023 19:59:31 +0000

This avoids two duplicates being presented to gdbstub. As the
registers are RAZ anyway it is unlikely their value would be of use to
someone using gdbstub anyway.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
---
 target/arm/debug_helper.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/target/arm/debug_helper.c b/target/arm/debug_helper.c
index 79a3659c0c..dc783adba5 100644
--- a/target/arm/debug_helper.c
+++ b/target/arm/debug_helper.c
@@ -937,14 +937,14 @@ static const ARMCPRegInfo debug_cp_reginfo[] = {
      */
     { .name = "DBGDRAR", .cp = 14, .crn = 1, .crm = 0, .opc1 = 0, .opc2 = 0,
       .access = PL0_R, .accessfn = access_tdra,
-      .type = ARM_CP_CONST, .resetvalue = 0 },
+      .type = ARM_CP_CONST | ARM_CP_NO_GDB, .resetvalue = 0 },
     { .name = "MDRAR_EL1", .state = ARM_CP_STATE_AA64,
       .opc0 = 2, .opc1 = 0, .crn = 1, .crm = 0, .opc2 = 0,
       .access = PL1_R, .accessfn = access_tdra,
       .type = ARM_CP_CONST, .resetvalue = 0 },
     { .name = "DBGDSAR", .cp = 14, .crn = 2, .crm = 0, .opc1 = 0, .opc2 = 0,
       .access = PL0_R, .accessfn = access_tdra,
-      .type = ARM_CP_CONST, .resetvalue = 0 },
+      .type = ARM_CP_CONST | ARM_CP_NO_GDB, .resetvalue = 0 },
     /* Monitor debug system control register; the 32-bit alias is DBGDSCRext. 
*/
     { .name = "MDSCR_EL1", .state = ARM_CP_STATE_BOTH,
       .cp = 14, .opc0 = 2, .opc1 = 0, .crn = 0, .crm = 2, .opc2 = 2,
@@ -1065,9 +1065,9 @@ static const ARMCPRegInfo debug_cp_reginfo[] = {
 static const ARMCPRegInfo debug_lpae_cp_reginfo[] = {
     /* 64 bit access versions of the (dummy) debug registers */
     { .name = "DBGDRAR", .cp = 14, .crm = 1, .opc1 = 0,
-      .access = PL0_R, .type = ARM_CP_CONST | ARM_CP_64BIT, .resetvalue = 0 },
+      .access = PL0_R, .type = ARM_CP_CONST | ARM_CP_64BIT | ARM_CP_NO_GDB, 
.resetvalue = 0 },
     { .name = "DBGDSAR", .cp = 14, .crm = 2, .opc1 = 0,
-      .access = PL0_R, .type = ARM_CP_CONST | ARM_CP_64BIT, .resetvalue = 0 },
+      .access = PL0_R, .type = ARM_CP_CONST | ARM_CP_64BIT | ARM_CP_NO_GDB, 
.resetvalue = 0 },
 };
 
 static void dbgwvr_write(CPUARMState *env, const ARMCPRegInfo *ri,
-- 
2.39.2




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