mirror of
https://github.com/yuzu-emu/unicorn.git
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44d8c38138
The cortex A53 TRM specifies that bits 24 and 25 of the L2CTLR register specify the number of cores in the processor, not the total number of cores in the system. To report this correctly on machines with multiple CPU clusters (ARM's big.LITTLE or Xilinx's ZynqMP) we need to allow the machine to overwrite this value. To do this let's add an optional property. Backports commit f9a697112ee64180354f98309a5d6b691cc8699d from qemu
304 lines
10 KiB
C
304 lines
10 KiB
C
/*
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* QEMU AArch64 CPU
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*
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* Copyright (c) 2013 Linaro Ltd
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see
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* <http://www.gnu.org/licenses/gpl-2.0.html>
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*/
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#include "qemu/osdep.h"
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#include "qapi/error.h"
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#include "cpu.h"
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#include "qemu-common.h"
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#include "hw/arm/arm.h"
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#include "sysemu/sysemu.h"
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static inline void set_feature(CPUARMState *env, int feature)
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{
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env->features |= 1ULL << feature;
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}
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static inline QEMU_UNUSED_FUNC void unset_feature(CPUARMState *env, int feature)
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{
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env->features &= ~(1ULL << feature);
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}
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#ifndef CONFIG_USER_ONLY
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static uint64_t a57_a53_l2ctlr_read(CPUARMState *env, const ARMCPRegInfo *ri)
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{
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ARMCPU *cpu = arm_env_get_cpu(env);
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/* Number of cores is in [25:24]; otherwise we RAZ */
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return (cpu->core_count - 1) << 24;
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}
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#endif
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static const ARMCPRegInfo cortex_a57_a53_cp_reginfo[] = {
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#ifndef CONFIG_USER_ONLY
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{ "L2CTLR_EL1", 0,11,0, 3,1,2, ARM_CP_STATE_AA64,
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0, PL1_RW, 0, NULL, 0, 0, {0, 0},
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NULL, a57_a53_l2ctlr_read, arm_cp_write_ignore, },
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{ "L2CTLR", 15,9,0, 0,1,2, 0,
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0, PL1_RW, 0, NULL, 0, 0, {0, 0},
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NULL, a57_a53_l2ctlr_read, arm_cp_write_ignore, },
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#endif
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{ "L2ECTLR_EL1", 0,11,0, 3,1,3, ARM_CP_STATE_AA64,
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ARM_CP_CONST, PL1_RW, 0, NULL, 0, },
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{ "L2ECTLR", 15,9,0, 0,1,3, 0,
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ARM_CP_CONST, PL1_RW, 0, NULL, 0, },
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{ "L2ACTLR", 0,15,0, 3,1,0, ARM_CP_STATE_BOTH,
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ARM_CP_CONST, PL1_RW, 0, NULL, 0 },
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{ "CPUACTLR_EL1", 0,15,2, 3,1,0, ARM_CP_STATE_AA64,
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ARM_CP_CONST, PL1_RW, 0, NULL, 0 },
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{ "CPUACTLR", 15,0,15, 0,0,0, 0,
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ARM_CP_CONST | ARM_CP_64BIT, PL1_RW, 0, NULL, 0, },
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{ "CPUECTLR_EL1", 0,15,2, 3,1,1, ARM_CP_STATE_AA64,
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ARM_CP_CONST, PL1_RW, 0, NULL, 0, },
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{ "CPUECTLR", 15,0,15, 0,1,0, 0,
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ARM_CP_CONST | ARM_CP_64BIT, PL1_RW, 0, NULL, 0, },
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{ "CPUMERRSR_EL1", 0,15,2, 3,1,2, ARM_CP_STATE_AA64,
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ARM_CP_CONST, PL1_RW, 0, NULL, 0 },
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{ "CPUMERRSR", 15,0,15, 0,2,0, 0,
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ARM_CP_CONST | ARM_CP_64BIT, PL1_RW, 0, NULL, 0 },
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{ "L2MERRSR_EL1", 0,15,2, 3,1,3, ARM_CP_STATE_AA64,
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ARM_CP_CONST, PL1_RW, 0, NULL, 0 },
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{ "L2MERRSR", 15,0,15, 0,3,0, 0,
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ARM_CP_CONST | ARM_CP_64BIT, PL1_RW, 0, NULL, 0 },
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REGINFO_SENTINEL
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};
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static void aarch64_a57_initfn(struct uc_struct *uc, Object *obj, void *opaque)
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{
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ARMCPU *cpu = ARM_CPU(uc, obj);
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set_feature(&cpu->env, ARM_FEATURE_V8);
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set_feature(&cpu->env, ARM_FEATURE_VFP4);
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set_feature(&cpu->env, ARM_FEATURE_NEON);
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set_feature(&cpu->env, ARM_FEATURE_GENERIC_TIMER);
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set_feature(&cpu->env, ARM_FEATURE_AARCH64);
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set_feature(&cpu->env, ARM_FEATURE_CBAR_RO);
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set_feature(&cpu->env, ARM_FEATURE_V8_AES);
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set_feature(&cpu->env, ARM_FEATURE_V8_SHA1);
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set_feature(&cpu->env, ARM_FEATURE_V8_SHA256);
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set_feature(&cpu->env, ARM_FEATURE_V8_PMULL);
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set_feature(&cpu->env, ARM_FEATURE_CRC);
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set_feature(&cpu->env, ARM_FEATURE_EL2);
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set_feature(&cpu->env, ARM_FEATURE_EL3);
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set_feature(&cpu->env, ARM_FEATURE_PMU);
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cpu->kvm_target = QEMU_KVM_ARM_TARGET_CORTEX_A57;
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cpu->midr = 0x411fd070;
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cpu->revidr = 0x00000000;
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cpu->reset_fpsid = 0x41034070;
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cpu->mvfr0 = 0x10110222;
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cpu->mvfr1 = 0x12111111;
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cpu->mvfr2 = 0x00000043;
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cpu->ctr = 0x8444c004;
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cpu->reset_sctlr = 0x00c50838;
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cpu->id_pfr0 = 0x00000131;
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cpu->id_pfr1 = 0x00011011;
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cpu->id_dfr0 = 0x03010066;
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cpu->id_afr0 = 0x00000000;
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cpu->id_mmfr0 = 0x10101105;
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cpu->id_mmfr1 = 0x40000000;
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cpu->id_mmfr2 = 0x01260000;
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cpu->id_mmfr3 = 0x02102211;
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cpu->id_isar0 = 0x02101110;
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cpu->id_isar1 = 0x13112111;
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cpu->id_isar2 = 0x21232042;
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cpu->id_isar3 = 0x01112131;
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cpu->id_isar4 = 0x00011142;
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cpu->id_isar5 = 0x00011121;
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cpu->id_aa64pfr0 = 0x00002222;
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cpu->id_aa64dfr0 = 0x10305106;
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cpu->pmceid0 = 0x00000000;
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cpu->pmceid1 = 0x00000000;
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cpu->id_aa64isar0 = 0x00011120;
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cpu->id_aa64mmfr0 = 0x00001124;
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cpu->dbgdidr = 0x3516d000;
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cpu->clidr = 0x0a200023;
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cpu->ccsidr[0] = 0x701fe00a; /* 32KB L1 dcache */
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cpu->ccsidr[1] = 0x201fe012; /* 48KB L1 icache */
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cpu->ccsidr[2] = 0x70ffe07a; /* 2048KB L2 cache */
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cpu->dcz_blocksize = 4; /* 64 bytes */
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define_arm_cp_regs(cpu, cortex_a57_a53_cp_reginfo);
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}
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static void aarch64_a53_initfn(struct uc_struct *uc, Object *obj, void *opaque)
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{
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ARMCPU *cpu = ARM_CPU(uc, obj);
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cpu->dtb_compatible = "arm,cortex-a53";
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set_feature(&cpu->env, ARM_FEATURE_V8);
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set_feature(&cpu->env, ARM_FEATURE_VFP4);
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set_feature(&cpu->env, ARM_FEATURE_NEON);
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set_feature(&cpu->env, ARM_FEATURE_GENERIC_TIMER);
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set_feature(&cpu->env, ARM_FEATURE_AARCH64);
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set_feature(&cpu->env, ARM_FEATURE_CBAR_RO);
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set_feature(&cpu->env, ARM_FEATURE_V8_AES);
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set_feature(&cpu->env, ARM_FEATURE_V8_SHA1);
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set_feature(&cpu->env, ARM_FEATURE_V8_SHA256);
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set_feature(&cpu->env, ARM_FEATURE_V8_PMULL);
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set_feature(&cpu->env, ARM_FEATURE_CRC);
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set_feature(&cpu->env, ARM_FEATURE_EL2);
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set_feature(&cpu->env, ARM_FEATURE_EL3);
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set_feature(&cpu->env, ARM_FEATURE_PMU);
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cpu->kvm_target = QEMU_KVM_ARM_TARGET_CORTEX_A53;
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cpu->midr = 0x410fd034;
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cpu->revidr = 0x00000000;
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cpu->reset_fpsid = 0x41034070;
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cpu->mvfr0 = 0x10110222;
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cpu->mvfr1 = 0x12111111;
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cpu->mvfr2 = 0x00000043;
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cpu->ctr = 0x84448004; /* L1Ip = VIPT */
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cpu->reset_sctlr = 0x00c50838;
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cpu->id_pfr0 = 0x00000131;
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cpu->id_pfr1 = 0x00011011;
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cpu->id_dfr0 = 0x03010066;
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cpu->id_afr0 = 0x00000000;
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cpu->id_mmfr0 = 0x10101105;
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cpu->id_mmfr1 = 0x40000000;
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cpu->id_mmfr2 = 0x01260000;
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cpu->id_mmfr3 = 0x02102211;
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cpu->id_isar0 = 0x02101110;
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cpu->id_isar1 = 0x13112111;
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cpu->id_isar2 = 0x21232042;
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cpu->id_isar3 = 0x01112131;
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cpu->id_isar4 = 0x00011142;
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cpu->id_isar5 = 0x00011121;
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cpu->id_aa64pfr0 = 0x00002222;
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cpu->id_aa64dfr0 = 0x10305106;
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cpu->id_aa64isar0 = 0x00011120;
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cpu->id_aa64mmfr0 = 0x00001122; /* 40 bit physical addr */
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cpu->dbgdidr = 0x3516d000;
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cpu->clidr = 0x0a200023;
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cpu->ccsidr[0] = 0x700fe01a; /* 32KB L1 dcache */
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cpu->ccsidr[1] = 0x201fe00a; /* 32KB L1 icache */
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cpu->ccsidr[2] = 0x707fe07a; /* 1024KB L2 cache */
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cpu->dcz_blocksize = 4; /* 64 bytes */
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define_arm_cp_regs(cpu, cortex_a57_a53_cp_reginfo);
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}
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// Unicorn: enabled for the general use-case as well.
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static void aarch64_any_initfn(struct uc_struct *uc, Object *obj, void *opaque)
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{
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ARMCPU *cpu = ARM_CPU(uc, obj);
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set_feature(&cpu->env, ARM_FEATURE_V8);
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set_feature(&cpu->env, ARM_FEATURE_VFP4);
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set_feature(&cpu->env, ARM_FEATURE_NEON);
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set_feature(&cpu->env, ARM_FEATURE_AARCH64);
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set_feature(&cpu->env, ARM_FEATURE_V8_AES);
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set_feature(&cpu->env, ARM_FEATURE_V8_SHA1);
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set_feature(&cpu->env, ARM_FEATURE_V8_SHA256);
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set_feature(&cpu->env, ARM_FEATURE_V8_SHA512);
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set_feature(&cpu->env, ARM_FEATURE_V8_SHA3);
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set_feature(&cpu->env, ARM_FEATURE_V8_SM3);
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set_feature(&cpu->env, ARM_FEATURE_V8_SM4);
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set_feature(&cpu->env, ARM_FEATURE_V8_PMULL);
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set_feature(&cpu->env, ARM_FEATURE_CRC);
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set_feature(&cpu->env, ARM_FEATURE_V8_RDM);
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set_feature(&cpu->env, ARM_FEATURE_V8_FP16);
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set_feature(&cpu->env, ARM_FEATURE_V8_FCMA);
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cpu->ctr = 0x80038003; /* 32 byte I and D cacheline size, VIPT icache */
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cpu->dcz_blocksize = 7; /* 512 bytes */
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}
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typedef struct ARMCPUInfo {
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const char *name;
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void (*initfn)(struct uc_struct *uc, Object *obj, void *opaque);
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void (*class_init)(struct uc_struct *uc, ObjectClass *oc, void *data);
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} ARMCPUInfo;
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static const ARMCPUInfo aarch64_cpus[] = {
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{ "cortex-a57", aarch64_a57_initfn },
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{ "cortex-a53", aarch64_a53_initfn },
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// Unicorn: enabled for the general use case as well
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{ "any", aarch64_any_initfn },
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{ NULL }
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};
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static QEMU_UNUSED_FUNC bool aarch64_cpu_get_aarch64(Object *obj, Error **errp)
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{
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ARMCPU *cpu = ARM_CPU(NULL, obj);
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return arm_feature(&cpu->env, ARM_FEATURE_AARCH64);
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}
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static void aarch64_cpu_initfn(struct uc_struct *uc, Object *obj, void *opaque)
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{
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}
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static void aarch64_cpu_finalizefn(struct uc_struct *uc, Object *obj, void *opaque)
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{
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}
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static void aarch64_cpu_set_pc(CPUState *cs, vaddr value)
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{
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ARMCPU *cpu = ARM_CPU(cs->uc, cs);
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/* It's OK to look at env for the current mode here, because it's
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* never possible for an AArch64 TB to chain to an AArch32 TB.
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* (Otherwise we would need to use synchronize_from_tb instead.)
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*/
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if (is_a64(&cpu->env)) {
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cpu->env.pc = value;
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} else {
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cpu->env.regs[15] = value;
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}
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}
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static void aarch64_cpu_class_init(struct uc_struct *uc, ObjectClass *oc, void *data)
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{
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CPUClass *cc = CPU_CLASS(uc, oc);
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cc->cpu_exec_interrupt = arm_cpu_exec_interrupt;
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cc->set_pc = aarch64_cpu_set_pc;
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}
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static void aarch64_cpu_register(struct uc_struct *uc, const ARMCPUInfo *info)
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{
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TypeInfo type_info = { 0 };
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type_info.parent = TYPE_AARCH64_CPU;
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type_info.instance_size = sizeof(ARMCPU);
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type_info.instance_init = info->initfn;
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type_info.class_size = sizeof(ARMCPUClass);
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type_info.class_init = info->class_init;
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type_info.name = g_strdup_printf("%s-" TYPE_ARM_CPU, info->name);
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type_register(uc, &type_info);
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g_free((void *)type_info.name);
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}
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void aarch64_cpu_register_types(void *opaque)
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{
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const ARMCPUInfo *info = aarch64_cpus;
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static TypeInfo aarch64_cpu_type_info = { 0 };
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aarch64_cpu_type_info.name = TYPE_AARCH64_CPU;
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aarch64_cpu_type_info.parent = TYPE_ARM_CPU;
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aarch64_cpu_type_info.instance_size = sizeof(ARMCPU);
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aarch64_cpu_type_info.instance_init = aarch64_cpu_initfn;
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aarch64_cpu_type_info.instance_finalize = aarch64_cpu_finalizefn;
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aarch64_cpu_type_info.abstract = true;
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aarch64_cpu_type_info.class_size = sizeof(AArch64CPUClass);
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aarch64_cpu_type_info.class_init = aarch64_cpu_class_init;
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type_register_static(opaque, &aarch64_cpu_type_info);
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while (info->name) {
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aarch64_cpu_register(opaque, info);
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info++;
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}
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}
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