X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=target%2Fs390x%2Fcpu.c;h=7f123863dc8d4fe7f1b932f5bf20723ec844835a;hb=bd2e12310b18b51aefbf834e6d54989fd175976f;hp=64455cf309af3401838e9454240163d01f2c56fc;hpb=e4f3ede95ce813d5705c65e1c0e1c80c70739ebb;p=mirror_qemu.git diff --git a/target/s390x/cpu.c b/target/s390x/cpu.c index 64455cf309..7f123863dc 100644 --- a/target/s390x/cpu.c +++ b/target/s390x/cpu.c @@ -23,31 +23,94 @@ #include "qemu/osdep.h" #include "qapi/error.h" #include "cpu.h" -#include "internal.h" -#include "kvm_s390x.h" +#include "s390x-internal.h" +#include "kvm/kvm_s390x.h" #include "sysemu/kvm.h" -#include "sysemu/reset.h" -#include "qemu/timer.h" -#include "qemu/error-report.h" #include "qemu/module.h" #include "trace.h" -#include "qapi/visitor.h" #include "qapi/qapi-types-machine.h" -#include "qapi/qapi-visit-run-state.h" #include "sysemu/hw_accel.h" #include "hw/qdev-properties.h" -#ifndef CONFIG_USER_ONLY -#include "hw/s390x/pv.h" -#include "hw/boards.h" -#include "sysemu/arch_init.h" -#include "sysemu/tcg.h" -#endif +#include "hw/qdev-properties-system.h" #include "fpu/softfloat-helpers.h" #include "disas/capstone.h" +#include "sysemu/tcg.h" +#ifndef CONFIG_USER_ONLY +#include "sysemu/reset.h" +#endif +#include "hw/s390x/cpu-topology.h" #define CR0_RESET 0xE0UL #define CR14_RESET 0xC2000000UL; +#ifndef CONFIG_USER_ONLY +static bool is_early_exception_psw(uint64_t mask, uint64_t addr) +{ + if (mask & PSW_MASK_RESERVED) { + return true; + } + + switch (mask & (PSW_MASK_32 | PSW_MASK_64)) { + case 0: + return addr & ~0xffffffULL; + case PSW_MASK_32: + return addr & ~0x7fffffffULL; + case PSW_MASK_32 | PSW_MASK_64: + return false; + default: /* PSW_MASK_64 */ + return true; + } +} +#endif + +void s390_cpu_set_psw(CPUS390XState *env, uint64_t mask, uint64_t addr) +{ +#ifndef CONFIG_USER_ONLY + uint64_t old_mask = env->psw.mask; +#endif + + env->psw.addr = addr; + env->psw.mask = mask; + + /* KVM will handle all WAITs and trigger a WAIT exit on disabled_wait */ + if (!tcg_enabled()) { + return; + } + env->cc_op = (mask >> 44) & 3; + +#ifndef CONFIG_USER_ONLY + if (is_early_exception_psw(mask, addr)) { + env->int_pgm_ilen = 0; + trigger_pgm_exception(env, PGM_SPECIFICATION); + return; + } + + if ((old_mask ^ mask) & PSW_MASK_PER) { + s390_cpu_recompute_watchpoints(env_cpu(env)); + } + + if (mask & PSW_MASK_WAIT) { + s390_handle_wait(env_archcpu(env)); + } +#endif +} + +uint64_t s390_cpu_get_psw_mask(CPUS390XState *env) +{ + uint64_t r = env->psw.mask; + + if (tcg_enabled()) { + uint64_t cc = calc_cc(env, env->cc_op, env->cc_src, + env->cc_dst, env->cc_vr); + + assert(cc <= 3); + r &= ~PSW_MASK_CC; + r |= cc << 44; + } + + return r; +} + static void s390_cpu_set_pc(CPUState *cs, vaddr value) { S390CPU *cpu = S390_CPU(cs); @@ -55,6 +118,13 @@ static void s390_cpu_set_pc(CPUState *cs, vaddr value) cpu->env.psw.addr = value; } +static vaddr s390_cpu_get_pc(CPUState *cs) +{ + S390CPU *cpu = S390_CPU(cs); + + return cpu->env.psw.addr; +} + static bool s390_cpu_has_work(CPUState *cs) { S390CPU *cpu = S390_CPU(cs); @@ -72,32 +142,20 @@ static bool s390_cpu_has_work(CPUState *cs) return s390_cpu_has_int(cpu); } -#if !defined(CONFIG_USER_ONLY) -/* S390CPUClass::load_normal() */ -static void s390_cpu_load_normal(CPUState *s) +static void s390_query_cpu_fast(CPUState *cpu, CpuInfoFast *value) { - S390CPU *cpu = S390_CPU(s); - uint64_t spsw; - - if (!s390_is_pv()) { - spsw = ldq_phys(s->as, 0); - cpu->env.psw.mask = spsw & PSW_MASK_SHORT_CTRL; - /* - * Invert short psw indication, so SIE will report a specification - * exception if it was not set. - */ - cpu->env.psw.mask ^= PSW_MASK_SHORTPSW; - cpu->env.psw.addr = spsw & PSW_MASK_SHORT_ADDR; - } else { - /* - * Firmware requires us to set the load state before we set - * the cpu to operating on protected guests. - */ - s390_cpu_set_state(S390_CPU_STATE_LOAD, cpu); + S390CPU *s390_cpu = S390_CPU(cpu); + + value->u.s390x.cpu_state = s390_cpu->env.cpu_state; +#if !defined(CONFIG_USER_ONLY) + if (s390_has_topology()) { + value->u.s390x.has_dedicated = true; + value->u.s390x.dedicated = s390_cpu->env.dedicated; + value->u.s390x.has_entitlement = true; + value->u.s390x.entitlement = s390_cpu->env.entitlement; } - s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu); -} #endif +} /* S390CPUClass::reset() */ static void s390_cpu_reset(CPUState *s, cpu_reset_type type) @@ -169,19 +227,9 @@ static void s390_cpu_reset(CPUState *s, cpu_reset_type type) } } -#if !defined(CONFIG_USER_ONLY) -static void s390_cpu_machine_reset_cb(void *opaque) -{ - S390CPU *cpu = opaque; - - run_on_cpu(CPU(cpu), s390_do_cpu_full_reset, RUN_ON_CPU_NULL); -} -#endif - static void s390_cpu_disas_set_info(CPUState *cpu, disassemble_info *info) { info->mach = bfd_mach_s390_64; - info->print_insn = print_insn_s390; info->cap_arch = CS_ARCH_SYSZ; info->cap_insn_unit = 2; info->cap_insn_split = 6; @@ -191,9 +239,6 @@ static void s390_cpu_realizefn(DeviceState *dev, Error **errp) { CPUState *cs = CPU(dev); S390CPUClass *scc = S390_CPU_GET_CLASS(dev); -#if !defined(CONFIG_USER_ONLY) - S390CPU *cpu = S390_CPU(dev); -#endif Error *err = NULL; /* the model has to be realized before qemu_init_vcpu() due to kvm */ @@ -203,23 +248,9 @@ static void s390_cpu_realizefn(DeviceState *dev, Error **errp) } #if !defined(CONFIG_USER_ONLY) - MachineState *ms = MACHINE(qdev_get_machine()); - unsigned int max_cpus = ms->smp.max_cpus; - if (cpu->env.core_id >= max_cpus) { - error_setg(&err, "Unable to add CPU with core-id: %" PRIu32 - ", maximum core-id: %d", cpu->env.core_id, - max_cpus - 1); - goto out; - } - - if (cpu_exists(cpu->env.core_id)) { - error_setg(&err, "Unable to add CPU with core-id: %" PRIu32 - ", it already exists", cpu->env.core_id); + if (!s390_cpu_realize_sysemu(dev, &err)) { goto out; } - - /* sync cs->cpu_index and env->core_id. The latter is needed for TCG. */ - cs->cpu_index = cpu->env.core_id; #endif cpu_exec_realizefn(cs, &err); @@ -228,7 +259,7 @@ static void s390_cpu_realizefn(DeviceState *dev, Error **errp) } #if !defined(CONFIG_USER_ONLY) - qemu_register_reset(s390_cpu_machine_reset_cb, cpu); + qemu_register_reset(s390_cpu_machine_reset_cb, S390_CPU(dev)); #endif s390_cpu_gdb_init(cs); qemu_init_vcpu(cs); @@ -250,222 +281,31 @@ out: error_propagate(errp, err); } -#if !defined(CONFIG_USER_ONLY) -static GuestPanicInformation *s390_cpu_get_crash_info(CPUState *cs) -{ - GuestPanicInformation *panic_info; - S390CPU *cpu = S390_CPU(cs); - - cpu_synchronize_state(cs); - panic_info = g_malloc0(sizeof(GuestPanicInformation)); - - panic_info->type = GUEST_PANIC_INFORMATION_TYPE_S390; - panic_info->u.s390.core = cpu->env.core_id; - panic_info->u.s390.psw_mask = cpu->env.psw.mask; - panic_info->u.s390.psw_addr = cpu->env.psw.addr; - panic_info->u.s390.reason = cpu->env.crash_reason; - - return panic_info; -} - -static void s390_cpu_get_crash_info_qom(Object *obj, Visitor *v, - const char *name, void *opaque, - Error **errp) -{ - CPUState *cs = CPU(obj); - GuestPanicInformation *panic_info; - - if (!cs->crash_occurred) { - error_setg(errp, "No crash occurred"); - return; - } - - panic_info = s390_cpu_get_crash_info(cs); - - visit_type_GuestPanicInformation(v, "crash-information", &panic_info, - errp); - qapi_free_GuestPanicInformation(panic_info); -} -#endif - static void s390_cpu_initfn(Object *obj) { CPUState *cs = CPU(obj); - S390CPU *cpu = S390_CPU(obj); - cpu_set_cpustate_pointers(cpu); cs->exception_index = EXCP_HLT; -#if !defined(CONFIG_USER_ONLY) - cs->start_powered_off = true; - object_property_add(obj, "crash-information", "GuestPanicInformation", - s390_cpu_get_crash_info_qom, NULL, NULL, NULL); - cpu->env.tod_timer = - timer_new_ns(QEMU_CLOCK_VIRTUAL, s390x_tod_timer, cpu); - cpu->env.cpu_timer = - timer_new_ns(QEMU_CLOCK_VIRTUAL, s390x_cpu_timer, cpu); - s390_cpu_set_state(S390_CPU_STATE_STOPPED, cpu); -#endif -} -static void s390_cpu_finalize(Object *obj) -{ #if !defined(CONFIG_USER_ONLY) - S390CPU *cpu = S390_CPU(obj); - - timer_free(cpu->env.tod_timer); - timer_free(cpu->env.cpu_timer); - - qemu_unregister_reset(s390_cpu_machine_reset_cb, cpu); - g_free(cpu->irqstate); + s390_cpu_init_sysemu(obj); #endif } -#if !defined(CONFIG_USER_ONLY) -static bool disabled_wait(CPUState *cpu) -{ - return cpu->halted && !(S390_CPU(cpu)->env.psw.mask & - (PSW_MASK_IO | PSW_MASK_EXT | PSW_MASK_MCHECK)); -} - -static unsigned s390_count_running_cpus(void) -{ - CPUState *cpu; - int nr_running = 0; - - CPU_FOREACH(cpu) { - uint8_t state = S390_CPU(cpu)->env.cpu_state; - if (state == S390_CPU_STATE_OPERATING || - state == S390_CPU_STATE_LOAD) { - if (!disabled_wait(cpu)) { - nr_running++; - } - } - } - - return nr_running; -} - -unsigned int s390_cpu_halt(S390CPU *cpu) -{ - CPUState *cs = CPU(cpu); - trace_cpu_halt(cs->cpu_index); - - if (!cs->halted) { - cs->halted = 1; - cs->exception_index = EXCP_HLT; - } - - return s390_count_running_cpus(); -} - -void s390_cpu_unhalt(S390CPU *cpu) -{ - CPUState *cs = CPU(cpu); - trace_cpu_unhalt(cs->cpu_index); - - if (cs->halted) { - cs->halted = 0; - cs->exception_index = -1; - } -} - -unsigned int s390_cpu_set_state(uint8_t cpu_state, S390CPU *cpu) - { - trace_cpu_set_state(CPU(cpu)->cpu_index, cpu_state); - - switch (cpu_state) { - case S390_CPU_STATE_STOPPED: - case S390_CPU_STATE_CHECK_STOP: - /* halt the cpu for common infrastructure */ - s390_cpu_halt(cpu); - break; - case S390_CPU_STATE_OPERATING: - case S390_CPU_STATE_LOAD: - /* - * Starting a CPU with a PSW WAIT bit set: - * KVM: handles this internally and triggers another WAIT exit. - * TCG: will actually try to continue to run. Don't unhalt, will - * be done when the CPU actually has work (an interrupt). - */ - if (!tcg_enabled() || !(cpu->env.psw.mask & PSW_MASK_WAIT)) { - s390_cpu_unhalt(cpu); - } - break; - default: - error_report("Requested CPU state is not a valid S390 CPU state: %u", - cpu_state); - exit(1); - } - if (kvm_enabled() && cpu->env.cpu_state != cpu_state) { - kvm_s390_set_cpu_state(cpu, cpu_state); - } - cpu->env.cpu_state = cpu_state; - - return s390_count_running_cpus(); -} - -int s390_set_memory_limit(uint64_t new_limit, uint64_t *hw_limit) -{ - if (kvm_enabled()) { - return kvm_s390_set_mem_limit(new_limit, hw_limit); - } - return 0; -} - -void s390_set_max_pagesize(uint64_t pagesize, Error **errp) +static const gchar *s390_gdb_arch_name(CPUState *cs) { - if (kvm_enabled()) { - kvm_s390_set_max_pagesize(pagesize, errp); - } -} - -void s390_cmma_reset(void) -{ - if (kvm_enabled()) { - kvm_s390_cmma_reset(); - } -} - -int s390_assign_subch_ioeventfd(EventNotifier *notifier, uint32_t sch_id, - int vq, bool assign) -{ - if (kvm_enabled()) { - return kvm_s390_assign_subch_ioeventfd(notifier, sch_id, vq, assign); - } else { - return 0; - } -} - -void s390_crypto_reset(void) -{ - if (kvm_enabled()) { - kvm_s390_crypto_reset(); - } -} - -void s390_enable_css_support(S390CPU *cpu) -{ - if (kvm_enabled()) { - kvm_s390_enable_css_support(cpu); - } -} - -void s390_do_cpu_set_diag318(CPUState *cs, run_on_cpu_data arg) -{ - if (kvm_enabled()) { - kvm_s390_set_diag318(cs, arg.host_ulong); - } -} -#endif - -static gchar *s390_gdb_arch_name(CPUState *cs) -{ - return g_strdup("s390:64-bit"); + return "s390:64-bit"; } static Property s390x_cpu_properties[] = { #if !defined(CONFIG_USER_ONLY) DEFINE_PROP_UINT32("core-id", S390CPU, env.core_id, 0), + DEFINE_PROP_INT32("socket-id", S390CPU, env.socket_id, -1), + DEFINE_PROP_INT32("book-id", S390CPU, env.book_id, -1), + DEFINE_PROP_INT32("drawer-id", S390CPU, env.drawer_id, -1), + DEFINE_PROP_BOOL("dedicated", S390CPU, env.dedicated, false), + DEFINE_PROP_CPUS390ENTITLEMENT("entitlement", S390CPU, env.entitlement, + S390_CPU_ENTITLEMENT_AUTO), #endif DEFINE_PROP_END_OF_LIST() }; @@ -479,11 +319,15 @@ static void s390_cpu_reset_full(DeviceState *dev) #ifdef CONFIG_TCG #include "hw/core/tcg-cpu-ops.h" -static struct TCGCPUOps s390_tcg_ops = { +static const TCGCPUOps s390_tcg_ops = { .initialize = s390x_translate_init, - .tlb_fill = s390_cpu_tlb_fill, + .restore_state_to_opc = s390x_restore_state_to_opc, -#if !defined(CONFIG_USER_ONLY) +#ifdef CONFIG_USER_ONLY + .record_sigsegv = s390_cpu_record_sigsegv, + .record_sigbus = s390_cpu_record_sigbus, +#else + .tlb_fill = s390_cpu_tlb_fill, .cpu_exec_interrupt = s390_cpu_exec_interrupt, .do_interrupt = s390_cpu_do_interrupt, .debug_excp_handler = s390x_cpu_debug_excp_handler, @@ -504,21 +348,18 @@ static void s390_cpu_class_init(ObjectClass *oc, void *data) dc->user_creatable = true; device_class_set_parent_reset(dc, s390_cpu_reset_full, &scc->parent_reset); -#if !defined(CONFIG_USER_ONLY) - scc->load_normal = s390_cpu_load_normal; -#endif + scc->reset = s390_cpu_reset; cc->class_by_name = s390_cpu_class_by_name, cc->has_work = s390_cpu_has_work; cc->dump_state = s390_cpu_dump_state; + cc->query_cpu_fast = s390_query_cpu_fast; cc->set_pc = s390_cpu_set_pc; + cc->get_pc = s390_cpu_get_pc; cc->gdb_read_register = s390_cpu_gdb_read_register; cc->gdb_write_register = s390_cpu_gdb_write_register; #ifndef CONFIG_USER_ONLY - cc->get_phys_page_debug = s390_cpu_get_phys_page_debug; - cc->vmsd = &vmstate_s390_cpu; - cc->get_crash_info = s390_cpu_get_crash_info; - cc->write_elf64_note = s390_cpu_write_elf64_note; + s390_cpu_class_init_sysemu(cc); #endif cc->disas_set_info = s390_cpu_disas_set_info; cc->gdb_num_core_regs = S390_NUM_CORE_REGS; @@ -538,7 +379,11 @@ static const TypeInfo s390_cpu_type_info = { .instance_size = sizeof(S390CPU), .instance_align = __alignof__(S390CPU), .instance_init = s390_cpu_initfn, + +#ifndef CONFIG_USER_ONLY .instance_finalize = s390_cpu_finalize, +#endif /* !CONFIG_USER_ONLY */ + .abstract = true, .class_size = sizeof(S390CPUClass), .class_init = s390_cpu_class_init,