diff options
Diffstat (limited to 'target-s390x/misc_helper.c')
| -rw-r--r-- | target-s390x/misc_helper.c | 653 |
1 files changed, 0 insertions, 653 deletions
diff --git a/target-s390x/misc_helper.c b/target-s390x/misc_helper.c deleted file mode 100644 index c9604ea9c7..0000000000 --- a/target-s390x/misc_helper.c +++ /dev/null @@ -1,653 +0,0 @@ -/* - * S/390 misc helper routines - * - * Copyright (c) 2009 Ulrich Hecht - * Copyright (c) 2009 Alexander Graf - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, see <http://www.gnu.org/licenses/>. - */ - -#include "qemu/osdep.h" -#include "cpu.h" -#include "exec/memory.h" -#include "qemu/host-utils.h" -#include "exec/helper-proto.h" -#include "sysemu/kvm.h" -#include "qemu/timer.h" -#include "exec/address-spaces.h" -#ifdef CONFIG_KVM -#include <linux/kvm.h> -#endif -#include "exec/exec-all.h" -#include "exec/cpu_ldst.h" - -#if !defined(CONFIG_USER_ONLY) -#include "hw/watchdog/wdt_diag288.h" -#include "sysemu/cpus.h" -#include "sysemu/sysemu.h" -#include "hw/s390x/ebcdic.h" -#include "hw/s390x/ipl.h" -#endif - -/* #define DEBUG_HELPER */ -#ifdef DEBUG_HELPER -#define HELPER_LOG(x...) qemu_log(x) -#else -#define HELPER_LOG(x...) -#endif - -/* Raise an exception dynamically from a helper function. */ -void QEMU_NORETURN runtime_exception(CPUS390XState *env, int excp, - uintptr_t retaddr) -{ - CPUState *cs = CPU(s390_env_get_cpu(env)); - int t; - - cs->exception_index = EXCP_PGM; - env->int_pgm_code = excp; - - /* Use the (ultimate) callers address to find the insn that trapped. */ - cpu_restore_state(cs, retaddr); - - /* Advance past the insn. */ - t = cpu_ldub_code(env, env->psw.addr); - env->int_pgm_ilen = t = get_ilen(t); - env->psw.addr += t; - - cpu_loop_exit(cs); -} - -/* Raise an exception statically from a TB. */ -void HELPER(exception)(CPUS390XState *env, uint32_t excp) -{ - CPUState *cs = CPU(s390_env_get_cpu(env)); - - HELPER_LOG("%s: exception %d\n", __func__, excp); - cs->exception_index = excp; - cpu_loop_exit(cs); -} - -#ifndef CONFIG_USER_ONLY - -void program_interrupt(CPUS390XState *env, uint32_t code, int ilen) -{ - S390CPU *cpu = s390_env_get_cpu(env); - - qemu_log_mask(CPU_LOG_INT, "program interrupt at %#" PRIx64 "\n", - env->psw.addr); - - if (kvm_enabled()) { -#ifdef CONFIG_KVM - struct kvm_s390_irq irq = { - .type = KVM_S390_PROGRAM_INT, - .u.pgm.code = code, - }; - - kvm_s390_vcpu_interrupt(cpu, &irq); -#endif - } else { - CPUState *cs = CPU(cpu); - - env->int_pgm_code = code; - env->int_pgm_ilen = ilen; - cs->exception_index = EXCP_PGM; - cpu_loop_exit(cs); - } -} - -/* SCLP service call */ -uint32_t HELPER(servc)(CPUS390XState *env, uint64_t r1, uint64_t r2) -{ - int r = sclp_service_call(env, r1, r2); - if (r < 0) { - program_interrupt(env, -r, 4); - return 0; - } - return r; -} - -#ifndef CONFIG_USER_ONLY -static int modified_clear_reset(S390CPU *cpu) -{ - S390CPUClass *scc = S390_CPU_GET_CLASS(cpu); - CPUState *t; - - pause_all_vcpus(); - cpu_synchronize_all_states(); - CPU_FOREACH(t) { - run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL); - } - s390_cmma_reset(); - subsystem_reset(); - s390_crypto_reset(); - scc->load_normal(CPU(cpu)); - cpu_synchronize_all_post_reset(); - resume_all_vcpus(); - return 0; -} - -static int load_normal_reset(S390CPU *cpu) -{ - S390CPUClass *scc = S390_CPU_GET_CLASS(cpu); - CPUState *t; - - pause_all_vcpus(); - cpu_synchronize_all_states(); - CPU_FOREACH(t) { - run_on_cpu(t, s390_do_cpu_reset, RUN_ON_CPU_NULL); - } - s390_cmma_reset(); - subsystem_reset(); - scc->initial_cpu_reset(CPU(cpu)); - scc->load_normal(CPU(cpu)); - cpu_synchronize_all_post_reset(); - resume_all_vcpus(); - return 0; -} - -int handle_diag_288(CPUS390XState *env, uint64_t r1, uint64_t r3) -{ - uint64_t func = env->regs[r1]; - uint64_t timeout = env->regs[r1 + 1]; - uint64_t action = env->regs[r3]; - Object *obj; - DIAG288State *diag288; - DIAG288Class *diag288_class; - - if (r1 % 2 || action != 0) { - return -1; - } - - /* Timeout must be more than 15 seconds except for timer deletion */ - if (func != WDT_DIAG288_CANCEL && timeout < 15) { - return -1; - } - - obj = object_resolve_path_type("", TYPE_WDT_DIAG288, NULL); - if (!obj) { - return -1; - } - - diag288 = DIAG288(obj); - diag288_class = DIAG288_GET_CLASS(diag288); - return diag288_class->handle_timer(diag288, func, timeout); -} - -#define DIAG_308_RC_OK 0x0001 -#define DIAG_308_RC_NO_CONF 0x0102 -#define DIAG_308_RC_INVALID 0x0402 - -void handle_diag_308(CPUS390XState *env, uint64_t r1, uint64_t r3) -{ - uint64_t addr = env->regs[r1]; - uint64_t subcode = env->regs[r3]; - IplParameterBlock *iplb; - - if (env->psw.mask & PSW_MASK_PSTATE) { - program_interrupt(env, PGM_PRIVILEGED, ILEN_LATER_INC); - return; - } - - if ((subcode & ~0x0ffffULL) || (subcode > 6)) { - program_interrupt(env, PGM_SPECIFICATION, ILEN_LATER_INC); - return; - } - - switch (subcode) { - case 0: - modified_clear_reset(s390_env_get_cpu(env)); - if (tcg_enabled()) { - cpu_loop_exit(CPU(s390_env_get_cpu(env))); - } - break; - case 1: - load_normal_reset(s390_env_get_cpu(env)); - if (tcg_enabled()) { - cpu_loop_exit(CPU(s390_env_get_cpu(env))); - } - break; - case 3: - s390_reipl_request(); - if (tcg_enabled()) { - cpu_loop_exit(CPU(s390_env_get_cpu(env))); - } - break; - case 5: - if ((r1 & 1) || (addr & 0x0fffULL)) { - program_interrupt(env, PGM_SPECIFICATION, ILEN_LATER_INC); - return; - } - if (!address_space_access_valid(&address_space_memory, addr, - sizeof(IplParameterBlock), false)) { - program_interrupt(env, PGM_ADDRESSING, ILEN_LATER_INC); - return; - } - iplb = g_malloc0(sizeof(IplParameterBlock)); - cpu_physical_memory_read(addr, iplb, sizeof(iplb->len)); - if (!iplb_valid_len(iplb)) { - env->regs[r1 + 1] = DIAG_308_RC_INVALID; - goto out; - } - - cpu_physical_memory_read(addr, iplb, be32_to_cpu(iplb->len)); - - if (!iplb_valid_ccw(iplb) && !iplb_valid_fcp(iplb)) { - env->regs[r1 + 1] = DIAG_308_RC_INVALID; - goto out; - } - - s390_ipl_update_diag308(iplb); - env->regs[r1 + 1] = DIAG_308_RC_OK; -out: - g_free(iplb); - return; - case 6: - if ((r1 & 1) || (addr & 0x0fffULL)) { - program_interrupt(env, PGM_SPECIFICATION, ILEN_LATER_INC); - return; - } - if (!address_space_access_valid(&address_space_memory, addr, - sizeof(IplParameterBlock), true)) { - program_interrupt(env, PGM_ADDRESSING, ILEN_LATER_INC); - return; - } - iplb = s390_ipl_get_iplb(); - if (iplb) { - cpu_physical_memory_write(addr, iplb, be32_to_cpu(iplb->len)); - env->regs[r1 + 1] = DIAG_308_RC_OK; - } else { - env->regs[r1 + 1] = DIAG_308_RC_NO_CONF; - } - return; - default: - hw_error("Unhandled diag308 subcode %" PRIx64, subcode); - break; - } -} -#endif - -void HELPER(diag)(CPUS390XState *env, uint32_t r1, uint32_t r3, uint32_t num) -{ - uint64_t r; - - switch (num) { - case 0x500: - /* KVM hypercall */ - r = s390_virtio_hypercall(env); - break; - case 0x44: - /* yield */ - r = 0; - break; - case 0x308: - /* ipl */ - handle_diag_308(env, r1, r3); - r = 0; - break; - default: - r = -1; - break; - } - - if (r) { - program_interrupt(env, PGM_OPERATION, ILEN_LATER_INC); - } -} - -/* Set Prefix */ -void HELPER(spx)(CPUS390XState *env, uint64_t a1) -{ - CPUState *cs = CPU(s390_env_get_cpu(env)); - uint32_t prefix = a1 & 0x7fffe000; - - env->psa = prefix; - HELPER_LOG("prefix: %#x\n", prefix); - tlb_flush_page(cs, 0); - tlb_flush_page(cs, TARGET_PAGE_SIZE); -} - -/* Store Clock */ -uint64_t HELPER(stck)(CPUS390XState *env) -{ - uint64_t time; - - time = env->tod_offset + - time2tod(qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) - env->tod_basetime); - - return time; -} - -/* Set Clock Comparator */ -void HELPER(sckc)(CPUS390XState *env, uint64_t time) -{ - if (time == -1ULL) { - return; - } - - env->ckc = time; - - /* difference between origins */ - time -= env->tod_offset; - - /* nanoseconds */ - time = tod2time(time); - - timer_mod(env->tod_timer, env->tod_basetime + time); -} - -/* Store Clock Comparator */ -uint64_t HELPER(stckc)(CPUS390XState *env) -{ - return env->ckc; -} - -/* Set CPU Timer */ -void HELPER(spt)(CPUS390XState *env, uint64_t time) -{ - if (time == -1ULL) { - return; - } - - /* nanoseconds */ - time = tod2time(time); - - env->cputm = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + time; - - timer_mod(env->cpu_timer, env->cputm); -} - -/* Store CPU Timer */ -uint64_t HELPER(stpt)(CPUS390XState *env) -{ - return time2tod(env->cputm - qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL)); -} - -/* Store System Information */ -uint32_t HELPER(stsi)(CPUS390XState *env, uint64_t a0, - uint64_t r0, uint64_t r1) -{ - int cc = 0; - int sel1, sel2; - - if ((r0 & STSI_LEVEL_MASK) <= STSI_LEVEL_3 && - ((r0 & STSI_R0_RESERVED_MASK) || (r1 & STSI_R1_RESERVED_MASK))) { - /* valid function code, invalid reserved bits */ - program_interrupt(env, PGM_SPECIFICATION, 2); - } - - sel1 = r0 & STSI_R0_SEL1_MASK; - sel2 = r1 & STSI_R1_SEL2_MASK; - - /* XXX: spec exception if sysib is not 4k-aligned */ - - switch (r0 & STSI_LEVEL_MASK) { - case STSI_LEVEL_1: - if ((sel1 == 1) && (sel2 == 1)) { - /* Basic Machine Configuration */ - struct sysib_111 sysib; - - memset(&sysib, 0, sizeof(sysib)); - ebcdic_put(sysib.manuf, "QEMU ", 16); - /* same as machine type number in STORE CPU ID */ - ebcdic_put(sysib.type, "QEMU", 4); - /* same as model number in STORE CPU ID */ - ebcdic_put(sysib.model, "QEMU ", 16); - ebcdic_put(sysib.sequence, "QEMU ", 16); - ebcdic_put(sysib.plant, "QEMU", 4); - cpu_physical_memory_write(a0, &sysib, sizeof(sysib)); - } else if ((sel1 == 2) && (sel2 == 1)) { - /* Basic Machine CPU */ - struct sysib_121 sysib; - - memset(&sysib, 0, sizeof(sysib)); - /* XXX make different for different CPUs? */ - ebcdic_put(sysib.sequence, "QEMUQEMUQEMUQEMU", 16); - ebcdic_put(sysib.plant, "QEMU", 4); - stw_p(&sysib.cpu_addr, env->cpu_num); - cpu_physical_memory_write(a0, &sysib, sizeof(sysib)); - } else if ((sel1 == 2) && (sel2 == 2)) { - /* Basic Machine CPUs */ - struct sysib_122 sysib; - - memset(&sysib, 0, sizeof(sysib)); - stl_p(&sysib.capability, 0x443afc29); - /* XXX change when SMP comes */ - stw_p(&sysib.total_cpus, 1); - stw_p(&sysib.active_cpus, 1); - stw_p(&sysib.standby_cpus, 0); - stw_p(&sysib.reserved_cpus, 0); - cpu_physical_memory_write(a0, &sysib, sizeof(sysib)); - } else { - cc = 3; - } - break; - case STSI_LEVEL_2: - { - if ((sel1 == 2) && (sel2 == 1)) { - /* LPAR CPU */ - struct sysib_221 sysib; - - memset(&sysib, 0, sizeof(sysib)); - /* XXX make different for different CPUs? */ - ebcdic_put(sysib.sequence, "QEMUQEMUQEMUQEMU", 16); - ebcdic_put(sysib.plant, "QEMU", 4); - stw_p(&sysib.cpu_addr, env->cpu_num); - stw_p(&sysib.cpu_id, 0); - cpu_physical_memory_write(a0, &sysib, sizeof(sysib)); - } else if ((sel1 == 2) && (sel2 == 2)) { - /* LPAR CPUs */ - struct sysib_222 sysib; - - memset(&sysib, 0, sizeof(sysib)); - stw_p(&sysib.lpar_num, 0); - sysib.lcpuc = 0; - /* XXX change when SMP comes */ - stw_p(&sysib.total_cpus, 1); - stw_p(&sysib.conf_cpus, 1); - stw_p(&sysib.standby_cpus, 0); - stw_p(&sysib.reserved_cpus, 0); - ebcdic_put(sysib.name, "QEMU ", 8); - stl_p(&sysib.caf, 1000); - stw_p(&sysib.dedicated_cpus, 0); - stw_p(&sysib.shared_cpus, 0); - cpu_physical_memory_write(a0, &sysib, sizeof(sysib)); - } else { - cc = 3; - } - break; - } - case STSI_LEVEL_3: - { - if ((sel1 == 2) && (sel2 == 2)) { - /* VM CPUs */ - struct sysib_322 sysib; - - memset(&sysib, 0, sizeof(sysib)); - sysib.count = 1; - /* XXX change when SMP comes */ - stw_p(&sysib.vm[0].total_cpus, 1); - stw_p(&sysib.vm[0].conf_cpus, 1); - stw_p(&sysib.vm[0].standby_cpus, 0); - stw_p(&sysib.vm[0].reserved_cpus, 0); - ebcdic_put(sysib.vm[0].name, "KVMguest", 8); - stl_p(&sysib.vm[0].caf, 1000); - ebcdic_put(sysib.vm[0].cpi, "KVM/Linux ", 16); - cpu_physical_memory_write(a0, &sysib, sizeof(sysib)); - } else { - cc = 3; - } - break; - } - case STSI_LEVEL_CURRENT: - env->regs[0] = STSI_LEVEL_3; - break; - default: - cc = 3; - break; - } - - return cc; -} - -uint32_t HELPER(sigp)(CPUS390XState *env, uint64_t order_code, uint32_t r1, - uint64_t cpu_addr) -{ - int cc = SIGP_CC_ORDER_CODE_ACCEPTED; - - HELPER_LOG("%s: %016" PRIx64 " %08x %016" PRIx64 "\n", - __func__, order_code, r1, cpu_addr); - - /* Remember: Use "R1 or R1 + 1, whichever is the odd-numbered register" - as parameter (input). Status (output) is always R1. */ - - switch (order_code) { - case SIGP_SET_ARCH: - /* switch arch */ - break; - case SIGP_SENSE: - /* enumerate CPU status */ - if (cpu_addr) { - /* XXX implement when SMP comes */ - return 3; - } - env->regs[r1] &= 0xffffffff00000000ULL; - cc = 1; - break; -#if !defined(CONFIG_USER_ONLY) - case SIGP_RESTART: - qemu_system_reset_request(); - cpu_loop_exit(CPU(s390_env_get_cpu(env))); - break; - case SIGP_STOP: - qemu_system_shutdown_request(); - cpu_loop_exit(CPU(s390_env_get_cpu(env))); - break; -#endif - default: - /* unknown sigp */ - fprintf(stderr, "XXX unknown sigp: 0x%" PRIx64 "\n", order_code); - cc = SIGP_CC_NOT_OPERATIONAL; - } - - return cc; -} -#endif - -#ifndef CONFIG_USER_ONLY -void HELPER(xsch)(CPUS390XState *env, uint64_t r1) -{ - S390CPU *cpu = s390_env_get_cpu(env); - ioinst_handle_xsch(cpu, r1); -} - -void HELPER(csch)(CPUS390XState *env, uint64_t r1) -{ - S390CPU *cpu = s390_env_get_cpu(env); - ioinst_handle_csch(cpu, r1); -} - -void HELPER(hsch)(CPUS390XState *env, uint64_t r1) -{ - S390CPU *cpu = s390_env_get_cpu(env); - ioinst_handle_hsch(cpu, r1); -} - -void HELPER(msch)(CPUS390XState *env, uint64_t r1, uint64_t inst) -{ - S390CPU *cpu = s390_env_get_cpu(env); - ioinst_handle_msch(cpu, r1, inst >> 16); -} - -void HELPER(rchp)(CPUS390XState *env, uint64_t r1) -{ - S390CPU *cpu = s390_env_get_cpu(env); - ioinst_handle_rchp(cpu, r1); -} - -void HELPER(rsch)(CPUS390XState *env, uint64_t r1) -{ - S390CPU *cpu = s390_env_get_cpu(env); - ioinst_handle_rsch(cpu, r1); -} - -void HELPER(ssch)(CPUS390XState *env, uint64_t r1, uint64_t inst) -{ - S390CPU *cpu = s390_env_get_cpu(env); - ioinst_handle_ssch(cpu, r1, inst >> 16); -} - -void HELPER(stsch)(CPUS390XState *env, uint64_t r1, uint64_t inst) -{ - S390CPU *cpu = s390_env_get_cpu(env); - ioinst_handle_stsch(cpu, r1, inst >> 16); -} - -void HELPER(tsch)(CPUS390XState *env, uint64_t r1, uint64_t inst) -{ - S390CPU *cpu = s390_env_get_cpu(env); - ioinst_handle_tsch(cpu, r1, inst >> 16); -} - -void HELPER(chsc)(CPUS390XState *env, uint64_t inst) -{ - S390CPU *cpu = s390_env_get_cpu(env); - ioinst_handle_chsc(cpu, inst >> 16); -} -#endif - -#ifndef CONFIG_USER_ONLY -void HELPER(per_check_exception)(CPUS390XState *env) -{ - CPUState *cs = CPU(s390_env_get_cpu(env)); - - if (env->per_perc_atmid) { - env->int_pgm_code = PGM_PER; - env->int_pgm_ilen = get_ilen(cpu_ldub_code(env, env->per_address)); - - cs->exception_index = EXCP_PGM; - cpu_loop_exit(cs); - } -} - -void HELPER(per_branch)(CPUS390XState *env, uint64_t from, uint64_t to) -{ - if ((env->cregs[9] & PER_CR9_EVENT_BRANCH)) { - if (!(env->cregs[9] & PER_CR9_CONTROL_BRANCH_ADDRESS) - || get_per_in_range(env, to)) { - env->per_address = from; - env->per_perc_atmid = PER_CODE_EVENT_BRANCH | get_per_atmid(env); - } - } -} - -void HELPER(per_ifetch)(CPUS390XState *env, uint64_t addr) -{ - if ((env->cregs[9] & PER_CR9_EVENT_IFETCH) && get_per_in_range(env, addr)) { - env->per_address = addr; - env->per_perc_atmid = PER_CODE_EVENT_IFETCH | get_per_atmid(env); - - /* If the instruction has to be nullified, trigger the - exception immediately. */ - if (env->cregs[9] & PER_CR9_EVENT_NULLIFICATION) { - CPUState *cs = CPU(s390_env_get_cpu(env)); - - env->int_pgm_code = PGM_PER; - env->int_pgm_ilen = get_ilen(cpu_ldub_code(env, addr)); - - cs->exception_index = EXCP_PGM; - cpu_loop_exit(cs); - } - } -} -#endif |