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[67.52.129.61]) by mx.google.com with ESMTPSA id o5sm8017713pdr.50.2014.10.30.14.29.43 for (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Thu, 30 Oct 2014 14:29:44 -0700 (PDT) From: Greg Bellows To: qemu-devel@nongnu.org, peter.maydell@linaro.org, serge.fdrv@gmail.com, edgar.iglesias@gmail.com, aggelerf@ethz.ch Date: Thu, 30 Oct 2014 16:28:56 -0500 Message-Id: <1414704538-17103-26-git-send-email-greg.bellows@linaro.org> X-Mailer: git-send-email 1.8.3.2 In-Reply-To: <1414704538-17103-1-git-send-email-greg.bellows@linaro.org> References: <1414704538-17103-1-git-send-email-greg.bellows@linaro.org> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.85.220.50 Cc: greg.bellows@linaro.org Subject: [Qemu-devel] [PATCH v8 25/27] target-arm: make c13 cp regs banked (FCSEIDR, ...) X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: , List-Help: , List-Subscribe: , Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org X-Removed-Original-Auth: Dkim didn't pass. X-Original-Sender: greg.bellows@linaro.org X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of patch+caf_=patchwork-forward=linaro.org@linaro.org designates 209.85.215.51 as permitted sender) smtp.mail=patch+caf_=patchwork-forward=linaro.org@linaro.org Mailing-list: list patchwork-forward@linaro.org; contact patchwork-forward+owners@linaro.org X-Google-Group-Id: 836684582541 From: Fabian Aggeler When EL3 is running in AArch32 (or ARMv7 with Security Extensions) FCSEIDR, CONTEXTIDR, TPIDRURW, TPIDRURO and TPIDRPRW have a secure and a non-secure instance. Signed-off-by: Fabian Aggeler Signed-off-by: Greg Bellows --- v6 -> v7 - Fix linux-user/arm/target-cpu.h to use array based tpidr_el. - Fix linux-user/main.c to use array based tpidrro_el. - Remove tab identified by checkpatch failure. - FIx linux-user/aarch64/target_cpu.h to use array based tpidr_el. v5 -> v6 - Changed _el field variants to be array based - Rework data layout for correct aliasing - Merged CONTEXTIDR and CONTEXTIDR_EL1 reginfo entries v3 -> v4 - Fix tpidrprw mapping --- linux-user/aarch64/target_cpu.h | 2 +- linux-user/arm/target_cpu.h | 2 +- linux-user/main.c | 72 ++++++++++++++++++++--------------------- target-arm/cpu.h | 35 +++++++++++++++++--- target-arm/helper.c | 37 ++++++++++++--------- target-arm/op_helper.c | 2 +- 6 files changed, 91 insertions(+), 59 deletions(-) diff --git a/linux-user/aarch64/target_cpu.h b/linux-user/aarch64/target_cpu.h index 21560ef..b5593dc 100644 --- a/linux-user/aarch64/target_cpu.h +++ b/linux-user/aarch64/target_cpu.h @@ -32,7 +32,7 @@ static inline void cpu_set_tls(CPUARMState *env, target_ulong newtls) /* Note that AArch64 Linux keeps the TLS pointer in TPIDR; this is * different from AArch32 Linux, which uses TPIDRRO. */ - env->cp15.tpidr_el0 = newtls; + env->cp15.tpidr_el[0] = newtls; } #endif diff --git a/linux-user/arm/target_cpu.h b/linux-user/arm/target_cpu.h index 39d65b6..d8a534d 100644 --- a/linux-user/arm/target_cpu.h +++ b/linux-user/arm/target_cpu.h @@ -29,7 +29,7 @@ static inline void cpu_clone_regs(CPUARMState *env, target_ulong newsp) static inline void cpu_set_tls(CPUARMState *env, target_ulong newtls) { - env->cp15.tpidrro_el0 = newtls; + env->cp15.tpidrro_el[0] = newtls; } #endif diff --git a/linux-user/main.c b/linux-user/main.c index 483eb3f..4f2bae2 100644 --- a/linux-user/main.c +++ b/linux-user/main.c @@ -564,7 +564,7 @@ do_kernel_trap(CPUARMState *env) end_exclusive(); break; case 0xffff0fe0: /* __kernel_get_tls */ - env->regs[0] = env->cp15.tpidrro_el0; + env->regs[0] = env->cp15.tpidrro_el[0]; break; case 0xffff0f60: /* __kernel_cmpxchg64 */ arm_kernel_cmpxchg64_helper(env); @@ -2804,7 +2804,7 @@ void cpu_loop(CPUCRISState *env) CPUState *cs = CPU(cris_env_get_cpu(env)); int trapnr, ret; target_siginfo_t info; - + while (1) { trapnr = cpu_cris_exec (env); switch (trapnr) { @@ -2822,13 +2822,13 @@ void cpu_loop(CPUCRISState *env) /* just indicate that signals should be handled asap */ break; case EXCP_BREAK: - ret = do_syscall(env, - env->regs[9], - env->regs[10], - env->regs[11], - env->regs[12], - env->regs[13], - env->pregs[7], + ret = do_syscall(env, + env->regs[9], + env->regs[10], + env->regs[11], + env->regs[12], + env->regs[13], + env->pregs[7], env->pregs[11], 0, 0); env->regs[10] = ret; @@ -2863,7 +2863,7 @@ void cpu_loop(CPUMBState *env) CPUState *cs = CPU(mb_env_get_cpu(env)); int trapnr, ret; target_siginfo_t info; - + while (1) { trapnr = cpu_mb_exec (env); switch (trapnr) { @@ -2884,13 +2884,13 @@ void cpu_loop(CPUMBState *env) /* Return address is 4 bytes after the call. */ env->regs[14] += 4; env->sregs[SR_PC] = env->regs[14]; - ret = do_syscall(env, - env->regs[12], - env->regs[5], - env->regs[6], - env->regs[7], - env->regs[8], - env->regs[9], + ret = do_syscall(env, + env->regs[12], + env->regs[5], + env->regs[6], + env->regs[7], + env->regs[8], + env->regs[9], env->regs[10], 0, 0); env->regs[3] = ret; @@ -3424,7 +3424,7 @@ void stop_all_tasks(void) void init_task_state(TaskState *ts) { int i; - + ts->used = 1; ts->first_free = ts->sigqueue_table; for (i = 0; i < MAX_SIGQUEUE_SIZE - 1; i++) { @@ -4271,23 +4271,23 @@ int main(int argc, char **argv, char **envp) env->regs[12] = regs->r12; env->regs[13] = regs->r13; env->regs[14] = regs->r14; - env->regs[15] = regs->r15; - env->regs[16] = regs->r16; - env->regs[17] = regs->r17; - env->regs[18] = regs->r18; - env->regs[19] = regs->r19; - env->regs[20] = regs->r20; - env->regs[21] = regs->r21; - env->regs[22] = regs->r22; - env->regs[23] = regs->r23; - env->regs[24] = regs->r24; - env->regs[25] = regs->r25; - env->regs[26] = regs->r26; - env->regs[27] = regs->r27; - env->regs[28] = regs->r28; - env->regs[29] = regs->r29; - env->regs[30] = regs->r30; - env->regs[31] = regs->r31; + env->regs[15] = regs->r15; + env->regs[16] = regs->r16; + env->regs[17] = regs->r17; + env->regs[18] = regs->r18; + env->regs[19] = regs->r19; + env->regs[20] = regs->r20; + env->regs[21] = regs->r21; + env->regs[22] = regs->r22; + env->regs[23] = regs->r23; + env->regs[24] = regs->r24; + env->regs[25] = regs->r25; + env->regs[26] = regs->r26; + env->regs[27] = regs->r27; + env->regs[28] = regs->r28; + env->regs[29] = regs->r29; + env->regs[30] = regs->r30; + env->regs[31] = regs->r31; env->sregs[SR_PC] = regs->pc; } #elif defined(TARGET_MIPS) @@ -4349,7 +4349,7 @@ int main(int argc, char **argv, char **envp) env->regs[12] = regs->r12; env->regs[13] = regs->r13; env->regs[14] = info->start_stack; - env->regs[15] = regs->acr; + env->regs[15] = regs->acr; env->pc = regs->erp; } #elif defined(TARGET_S390X) diff --git a/target-arm/cpu.h b/target-arm/cpu.h index e0954c7..348ce73 100644 --- a/target-arm/cpu.h +++ b/target-arm/cpu.h @@ -316,11 +316,36 @@ typedef struct CPUARMState { uint64_t vbar_el[4]; }; uint32_t mvbar; /* (monitor) vector base address register */ - uint32_t c13_fcse; /* FCSE PID. */ - uint64_t contextidr_el1; /* Context ID. */ - uint64_t tpidr_el0; /* User RW Thread register. */ - uint64_t tpidrro_el0; /* User RO Thread register. */ - uint64_t tpidr_el1; /* Privileged Thread register. */ + struct { /* FCSE PID. */ + uint32_t fcseidr_ns; + uint32_t fcseidr_s; + }; + union { /* Context ID. */ + struct { + uint64_t _unused_contextidr; + uint64_t contextidr_ns; + uint64_t contextidr_s; + }; + uint64_t contextidr_el[2]; + }; + union { /* User RW Thread register. */ + struct { + uint64_t tpidrurw_ns; + uint64_t tpidrprw_ns; + uint64_t htpidr; + uint64_t _tpidr_el3; + }; + uint64_t tpidr_el[4]; + }; + /* The secure banks of these registers don't map anywhere */ + uint64_t tpidrurw_s; + uint64_t tpidrprw_s; + uint64_t tpidruro_s; + + union { /* User RO Thread register. */ + uint64_t tpidruro_ns; + uint64_t tpidrro_el[1]; + }; uint64_t c14_cntfrq; /* Counter Frequency register */ uint64_t c14_cntkctl; /* Timer Control register */ ARMGenericTimer c14_timer[NUM_GTIMERS]; diff --git a/target-arm/helper.c b/target-arm/helper.c index fb040d4..d782897 100644 --- a/target-arm/helper.c +++ b/target-arm/helper.c @@ -420,12 +420,15 @@ static void tlbimvaa_is_write(CPUARMState *env, const ARMCPRegInfo *ri, static const ARMCPRegInfo cp_reginfo[] = { { .name = "FCSEIDR", .cp = 15, .crn = 13, .crm = 0, .opc1 = 0, .opc2 = 0, - .access = PL1_RW, .fieldoffset = offsetof(CPUARMState, cp15.c13_fcse), + .access = PL1_RW, + .bank_fieldoffsets = { offsetof(CPUARMState, cp15.fcseidr_s), + offsetof(CPUARMState, cp15.fcseidr_ns) }, .resetvalue = 0, .writefn = fcse_write, .raw_writefn = raw_write, }, { .name = "CONTEXTIDR", .state = ARM_CP_STATE_BOTH, - .opc0 = 3, .opc1 = 0, .crn = 13, .crm = 0, .opc2 = 1, + .cp = 15, .opc1 = 0, .crn = 13, .crm = 0, .opc2 = 1, .access = PL1_RW, - .fieldoffset = offsetof(CPUARMState, cp15.contextidr_el1), + .bank_fieldoffsets = { offsetof(CPUARMState, cp15.contextidr_s), + offsetof(CPUARMState, cp15.contextidr_ns) }, .resetvalue = 0, .writefn = contextidr_write, .raw_writefn = raw_write, }, REGINFO_SENTINEL }; @@ -1025,23 +1028,27 @@ static const ARMCPRegInfo v6k_cp_reginfo[] = { { .name = "TPIDR_EL0", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 3, .opc2 = 2, .crn = 13, .crm = 0, .access = PL0_RW, - .fieldoffset = offsetof(CPUARMState, cp15.tpidr_el0), .resetvalue = 0 }, + .fieldoffset = offsetof(CPUARMState, cp15.tpidr_el[0]), .resetvalue = 0 }, { .name = "TPIDRURW", .cp = 15, .crn = 13, .crm = 0, .opc1 = 0, .opc2 = 2, - .access = PL0_RW, - .fieldoffset = offsetoflow32(CPUARMState, cp15.tpidr_el0), - .resetfn = arm_cp_reset_ignore }, + .access = PL0_RW, .resetvalue = 0, + .bank_fieldoffsets = { offsetoflow32(CPUARMState, cp15.tpidrurw_s), + offsetoflow32(CPUARMState, cp15.tpidrurw_ns) } }, { .name = "TPIDRRO_EL0", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 3, .opc2 = 3, .crn = 13, .crm = 0, - .access = PL0_R|PL1_W, - .fieldoffset = offsetof(CPUARMState, cp15.tpidrro_el0), .resetvalue = 0 }, + .access = PL0_R|PL1_W, .resetvalue = 0, + .fieldoffset = offsetof(CPUARMState, cp15.tpidrro_el[0]) }, { .name = "TPIDRURO", .cp = 15, .crn = 13, .crm = 0, .opc1 = 0, .opc2 = 3, - .access = PL0_R|PL1_W, - .fieldoffset = offsetoflow32(CPUARMState, cp15.tpidrro_el0), - .resetfn = arm_cp_reset_ignore }, - { .name = "TPIDR_EL1", .state = ARM_CP_STATE_BOTH, + .access = PL0_R|PL1_W, .resetvalue = 0, + .bank_fieldoffsets = { offsetoflow32(CPUARMState, cp15.tpidruro_s), + offsetoflow32(CPUARMState, cp15.tpidruro_ns) } }, + { .name = "TPIDR_EL1", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 0, .opc2 = 4, .crn = 13, .crm = 0, .access = PL1_RW, - .fieldoffset = offsetof(CPUARMState, cp15.tpidr_el1), .resetvalue = 0 }, + .fieldoffset = offsetof(CPUARMState, cp15.tpidr_el[1]), .resetvalue = 0 }, + { .name = "TPIDRPRW", .cp = 15, .crn = 13, .crm = 0, .opc1 = 0, .opc2 = 4, + .access = PL1_RW, .resetvalue = 0, + .bank_fieldoffsets = { offsetoflow32(CPUARMState, cp15.tpidrprw_s), + offsetoflow32(CPUARMState, cp15.tpidrprw_ns) } }, REGINFO_SENTINEL }; @@ -5045,7 +5052,7 @@ static inline int get_phys_addr(CPUARMState *env, target_ulong address, /* Fast Context Switch Extension. */ if (address < 0x02000000) - address += env->cp15.c13_fcse; + address += A32_BANKED_CURRENT_REG_GET(env, fcseidr); if ((sctlr & SCTLR_M) == 0) { /* MMU/MPU disabled. */ diff --git a/target-arm/op_helper.c b/target-arm/op_helper.c index a8dea5a..2bed914 100644 --- a/target-arm/op_helper.c +++ b/target-arm/op_helper.c @@ -575,7 +575,7 @@ static bool linked_bp_matches(ARMCPU *cpu, int lbn) * short descriptor format (in which case it holds both PROCID and ASID), * since we don't implement the optional v7 context ID masking. */ - contextidr = extract64(env->cp15.contextidr_el1, 0, 32); + contextidr = extract64(env->cp15.contextidr_el[1], 0, 32); switch (bt) { case 3: /* linked context ID match */