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-rw-r--r--qemu/target-s390x/misc_helper.c640
1 files changed, 0 insertions, 640 deletions
diff --git a/qemu/target-s390x/misc_helper.c b/qemu/target-s390x/misc_helper.c
deleted file mode 100644
index 71cbe34e0..000000000
--- a/qemu/target-s390x/misc_helper.c
+++ /dev/null
@@ -1,640 +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/cpu_ldst.h"
-#include "hw/watchdog/wdt_diag288.h"
-
-#if !defined(CONFIG_USER_ONLY)
-#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, t);
- }
- 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, t);
- }
- 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(struct IplParameterBlock));
- cpu_physical_memory_read(addr, iplb, sizeof(struct IplParameterBlock));
- s390_ipl_update_diag308(iplb);
- env->regs[r1 + 1] = DIAG_308_RC_OK;
- 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,
- sizeof(struct IplParameterBlock));
- 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