From 91e240698f6a82cb73893ee0ce26369aa6232f7b Mon Sep 17 00:00:00 2001 From: Peter Maydell Date: Wed, 26 Feb 2014 17:20:03 +0000 Subject: 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: Peter Maydell Reviewed-by: Peter Crosthwaite --- target-arm/helper.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'target-arm') diff --git a/target-arm/helper.c b/target-arm/helper.c index 13a55a5970..75850d6dba 100644 --- a/target-arm/helper.c +++ b/target-arm/helper.c @@ -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 }; -- cgit v1.2.1