Commit c7459633 authored by Richard Henderson's avatar Richard Henderson Committed by Peter Maydell
Browse files

target/arm: Enable MTE 



We now implement all of the components of MTE, without actually
supporting any tagged memory.  All MTE instructions will work,
trivially, so we can enable support.

Reviewed-by: default avatarPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: default avatarRichard Henderson <richard.henderson@linaro.org>
Message-id: 20200626033144.790098-46-richard.henderson@linaro.org
Signed-off-by: default avatarPeter Maydell <peter.maydell@linaro.org>
parent e4d5bf4f

target/arm/cpu64.c

+5 −0
Original line number Diff line number Diff line
@@ -654,6 +654,11 @@ static void aarch64_max_initfn(Object *obj) 


        t = cpu->isar.id_aa64pfr1;

        t = FIELD_DP64(t, ID_AA64PFR1, BT, 1);

        /*

         * Begin with full support for MTE; will be downgraded to MTE=1

         * during realize if the board provides no tag memory.

         */

        t = FIELD_DP64(t, ID_AA64PFR1, MTE, 2);

        cpu->isar.id_aa64pfr1 = t;



        t = cpu->isar.id_aa64mmfr1;