diff options
Diffstat (limited to 'target/s390x/cpu-sysemu.c')
| -rw-r--r-- | target/s390x/cpu-sysemu.c | 322 |
1 files changed, 0 insertions, 322 deletions
diff --git a/target/s390x/cpu-sysemu.c b/target/s390x/cpu-sysemu.c deleted file mode 100644 index 1cd30c1..0000000 --- a/target/s390x/cpu-sysemu.c +++ /dev/null @@ -1,322 +0,0 @@ -/* - * QEMU S/390 CPU - System Emulation-only code - * - * Copyright (c) 2009 Ulrich Hecht - * Copyright (c) 2011 Alexander Graf - * Copyright (c) 2012 SUSE LINUX Products GmbH - * Copyright (c) 2012 IBM Corp. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program 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 - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - */ - -#include "qemu/osdep.h" -#include "qemu/error-report.h" -#include "qapi/error.h" -#include "cpu.h" -#include "s390x-internal.h" -#include "kvm/kvm_s390x.h" -#include "sysemu/kvm.h" -#include "sysemu/reset.h" -#include "qemu/timer.h" -#include "trace.h" -#include "qapi/qapi-visit-run-state.h" -#include "sysemu/hw_accel.h" - -#include "target/s390x/kvm/pv.h" -#include "hw/boards.h" -#include "sysemu/sysemu.h" -#include "sysemu/tcg.h" -#include "hw/core/sysemu-cpu-ops.h" - -/* S390CPUClass::load_normal() */ -static void s390_cpu_load_normal(CPUState *s) -{ - 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); - } - s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu); -} - -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); -} - -static GuestPanicInformation *s390_cpu_get_crash_info(CPUState *cs) -{ - GuestPanicInformation *panic_info; - S390CPU *cpu = S390_CPU(cs); - - cpu_synchronize_state(cs); - panic_info = g_new0(GuestPanicInformation, 1); - - 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); -} - -void s390_cpu_init_sysemu(Object *obj) -{ - CPUState *cs = CPU(obj); - S390CPU *cpu = S390_CPU(obj); - - 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); -} - -bool s390_cpu_realize_sysemu(DeviceState *dev, Error **errp) -{ - S390CPU *cpu = S390_CPU(dev); - MachineState *ms = MACHINE(qdev_get_machine()); - unsigned int max_cpus = ms->smp.max_cpus; - - if (cpu->env.core_id >= max_cpus) { - error_setg(errp, "Unable to add CPU with core-id: %" PRIu32 - ", maximum core-id: %d", cpu->env.core_id, - max_cpus - 1); - return false; - } - - if (cpu_exists(cpu->env.core_id)) { - error_setg(errp, "Unable to add CPU with core-id: %" PRIu32 - ", it already exists", cpu->env.core_id); - return false; - } - - /* sync cs->cpu_index and env->core_id. The latter is needed for TCG. */ - CPU(cpu)->cpu_index = cpu->env.core_id; - return true; -} - -void s390_cpu_finalize(Object *obj) -{ - 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); -} - -static const struct SysemuCPUOps s390_sysemu_ops = { - .get_phys_page_debug = s390_cpu_get_phys_page_debug, - .get_crash_info = s390_cpu_get_crash_info, - .write_elf64_note = s390_cpu_write_elf64_note, - .legacy_vmsd = &vmstate_s390_cpu, -}; - -void s390_cpu_class_init_sysemu(CPUClass *cc) -{ - S390CPUClass *scc = S390_CPU_CLASS(cc); - - scc->load_normal = s390_cpu_load_normal; - cc->sysemu_ops = &s390_sysemu_ops; -} - -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) -{ - 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); - } -} - -void s390_cpu_topology_set_changed(bool changed) -{ - int ret; - - if (kvm_enabled()) { - ret = kvm_s390_topology_set_mtcr(changed); - if (ret) { - error_report("Failed to set Modified Topology Change Report: %s", - strerror(-ret)); - } - } -} |