From: Alex Bennée <alex.bennee@linaro.org>
Date: Mon, 6 Nov 2023 18:50:55 +0000 (+0000)
Subject: target/arm: hide aliased MIDR from gdbstub
X-Git-Tag: v8.2.0-rc0~15^2~18
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=acd8e83a2f81a6ac98f0ddffd2b476d6c9d8a48a;p=thirdparty%2Fqemu.git

target/arm: hide aliased MIDR from gdbstub

This is just a constant alias register with the same value as the
"other" MIDR so it serves no purpose being presented to gdbstub.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20231106185112.2755262-6-alex.bennee@linaro.org>
---

diff --git a/target/arm/helper.c b/target/arm/helper.c
index 6acd87f5b9a..ff1970981ee 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -9000,7 +9000,7 @@ void register_cp_regs_for_features(ARMCPU *cpu)
               .type = ARM_CP_CONST, .resetvalue = cpu->revidr },
         };
         ARMCPRegInfo id_v8_midr_alias_cp_reginfo = {
-            .name = "MIDR", .type = ARM_CP_ALIAS | ARM_CP_CONST,
+            .name = "MIDR", .type = ARM_CP_ALIAS | ARM_CP_CONST | ARM_CP_NO_GDB,
             .cp = 15, .crn = 0, .crm = 0, .opc1 = 0, .opc2 = 4,
             .access = PL1_R, .resetvalue = cpu->midr
         };