Commit 91e24069 authored by Peter Maydell's avatar Peter Maydell
Browse files

target-arm: Implement AArch64 dummy MDSCR_EL1 



We don't support letting the guest do debug, but Linux prods the
monitor debug system control register anyway, so implement a dummy
RAZ/WI version.

Signed-off-by: default avatarPeter Maydell <peter.maydell@linaro.org>
Reviewed-by: default avatarPeter Crosthwaite <peter.crosthwaite@xilinx.com>
parent 168aa23b

target-arm/helper.c

+6 −0
Original line number Diff line number Diff line
@@ -1656,6 +1656,12 @@ static const ARMCPRegInfo v8_cp_reginfo[] = { 
      .opc0 = 1, .opc2 = 0, .crn = 8, .crm = 7, .opc2 = 7,

      .access = PL1_W, .type = ARM_CP_NO_MIGRATE,

      .writefn = tlbi_aa64_vaa_write },

    /* Dummy implementation of monitor debug system control register:

     * we don't support debug.

     */

    { .name = "MDSCR_EL1", .state = ARM_CP_STATE_AA64,

      .opc0 = 2, .opc1 = 0, .crn = 0, .crm = 2, .opc2 = 2,

      .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },

    REGINFO_SENTINEL

};