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authorPeter Maydell <peter.maydell@linaro.org>2024-04-18 16:20:03 +0100
committerPeter Maydell <peter.maydell@linaro.org>2024-04-30 15:01:07 +0100
commitf7ddd7b6a1f90cae677303e96b91e866a1570f6a (patch)
tree305a47052871f43ba3d8cc19cd4fd60699a78fc9 /target/arm/helper.c
parent74360f3544be380f3a6f7a0f1cd8082ddd4a75ad (diff)
downloadfocaccia-qemu-f7ddd7b6a1f90cae677303e96b91e866a1570f6a.tar.gz
focaccia-qemu-f7ddd7b6a1f90cae677303e96b91e866a1570f6a.zip
target/arm: Implement ID_AA64MMFR3_EL1
Newer versions of the Arm ARM (e.g.  rev K.a) now define fields for
ID_AA64MMFR3_EL1.  Implement this register, so that we can set the
fields if we need to.  There's no behaviour change here since we
don't currently set the register value to non-zero.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20240418152004.2106516-5-peter.maydell@linaro.org
Diffstat (limited to 'target/arm/helper.c')
-rw-r--r--target/arm/helper.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/target/arm/helper.c b/target/arm/helper.c
index 6b224826fb..bb0e1baf62 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -9004,11 +9004,11 @@ void register_cp_regs_for_features(ARMCPU *cpu)
               .access = PL1_R, .type = ARM_CP_CONST,
               .accessfn = access_aa64_tid3,
               .resetvalue = cpu->isar.id_aa64mmfr2 },
-            { .name = "ID_AA64MMFR3_EL1_RESERVED", .state = ARM_CP_STATE_AA64,
+            { .name = "ID_AA64MMFR3_EL1", .state = ARM_CP_STATE_AA64,
               .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 7, .opc2 = 3,
               .access = PL1_R, .type = ARM_CP_CONST,
               .accessfn = access_aa64_tid3,
-              .resetvalue = 0 },
+              .resetvalue = cpu->isar.id_aa64mmfr3 },
             { .name = "ID_AA64MMFR4_EL1_RESERVED", .state = ARM_CP_STATE_AA64,
               .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 7, .opc2 = 4,
               .access = PL1_R, .type = ARM_CP_CONST,
@@ -9165,6 +9165,8 @@ void register_cp_regs_for_features(ARMCPU *cpu)
               .exported_bits = R_ID_AA64MMFR1_AFP_MASK },
             { .name = "ID_AA64MMFR2_EL1",
               .exported_bits = R_ID_AA64MMFR2_AT_MASK },
+            { .name = "ID_AA64MMFR3_EL1",
+              .exported_bits = 0 },
             { .name = "ID_AA64MMFR*_EL1_RESERVED",
               .is_glob = true },
             { .name = "ID_AA64DFR0_EL1",