From 13b72b2b9aa7ab7ee129e38e9587acd6a1b9a932 Mon Sep 17 00:00:00 2001 From: Sergey Fedorov Date: Mon, 15 Jun 2015 18:06:08 +0100 Subject: target-arm: Fix REVIDR reset value According to ARM Cortex-A53/A57 TRM, REVIDR reset value should be zero. So let REVIDR reset value be specified by CPU model and correct it for Cortex-A53/A57. Signed-off-by: Sergey Fedorov Message-id: 1433321048-23793-2-git-send-email-serge.fdrv@gmail.com Reviewed-by: Peter Maydell Signed-off-by: Peter Maydell --- target-arm/cpu-qom.h | 1 + target-arm/cpu64.c | 2 ++ target-arm/helper.c | 5 ++--- 3 files changed, 5 insertions(+), 3 deletions(-) (limited to 'target-arm') diff --git a/target-arm/cpu-qom.h b/target-arm/cpu-qom.h index ed5a644..c80381d 100644 --- a/target-arm/cpu-qom.h +++ b/target-arm/cpu-qom.h @@ -127,6 +127,7 @@ typedef struct ARMCPU { * prefix means a constant register. */ uint32_t midr; + uint32_t revidr; uint32_t reset_fpsid; uint32_t mvfr0; uint32_t mvfr1; diff --git a/target-arm/cpu64.c b/target-arm/cpu64.c index dd6f9d8..63c8b1c 100644 --- a/target-arm/cpu64.c +++ b/target-arm/cpu64.c @@ -110,6 +110,7 @@ static void aarch64_a57_initfn(Object *obj) set_feature(&cpu->env, ARM_FEATURE_CRC); cpu->kvm_target = QEMU_KVM_ARM_TARGET_CORTEX_A57; cpu->midr = 0x411fd070; + cpu->revidr = 0x00000000; cpu->reset_fpsid = 0x41034070; cpu->mvfr0 = 0x10110222; cpu->mvfr1 = 0x12111111; @@ -161,6 +162,7 @@ static void aarch64_a53_initfn(Object *obj) set_feature(&cpu->env, ARM_FEATURE_CRC); cpu->kvm_target = QEMU_KVM_ARM_TARGET_CORTEX_A53; cpu->midr = 0x410fd034; + cpu->revidr = 0x00000000; cpu->reset_fpsid = 0x41034070; cpu->mvfr0 = 0x10110222; cpu->mvfr1 = 0x12111111; diff --git a/target-arm/helper.c b/target-arm/helper.c index 611b0e7..8053ad5 100644 --- a/target-arm/helper.c +++ b/target-arm/helper.c @@ -3424,15 +3424,14 @@ void register_cp_regs_for_features(ARMCPU *cpu) }; ARMCPRegInfo id_v8_midr_cp_reginfo[] = { /* v8 MIDR -- the wildcard isn't necessary, and nor is the - * variable-MIDR TI925 behaviour. Instead we have a single - * (strictly speaking IMPDEF) alias of the MIDR, REVIDR. + * variable-MIDR TI925 behaviour. */ { .name = "MIDR_EL1", .state = ARM_CP_STATE_BOTH, .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 0, .opc2 = 0, .access = PL1_R, .type = ARM_CP_CONST, .resetvalue = cpu->midr }, { .name = "REVIDR_EL1", .state = ARM_CP_STATE_BOTH, .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 0, .opc2 = 6, - .access = PL1_R, .type = ARM_CP_CONST, .resetvalue = cpu->midr }, + .access = PL1_R, .type = ARM_CP_CONST, .resetvalue = cpu->revidr }, REGINFO_SENTINEL }; ARMCPRegInfo id_cp_reginfo[] = { -- cgit v1.1