1549e984eSSergio Lopez /* 2549e984eSSergio Lopez * Copyright (c) 2003-2004 Fabrice Bellard 3549e984eSSergio Lopez * Copyright (c) 2019 Red Hat, Inc. 4549e984eSSergio Lopez * 5549e984eSSergio Lopez * Permission is hereby granted, free of charge, to any person obtaining a copy 6549e984eSSergio Lopez * of this software and associated documentation files (the "Software"), to deal 7549e984eSSergio Lopez * in the Software without restriction, including without limitation the rights 8549e984eSSergio Lopez * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9549e984eSSergio Lopez * copies of the Software, and to permit persons to whom the Software is 10549e984eSSergio Lopez * furnished to do so, subject to the following conditions: 11549e984eSSergio Lopez * 12549e984eSSergio Lopez * The above copyright notice and this permission notice shall be included in 13549e984eSSergio Lopez * all copies or substantial portions of the Software. 14549e984eSSergio Lopez * 15549e984eSSergio Lopez * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16549e984eSSergio Lopez * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17549e984eSSergio Lopez * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18549e984eSSergio Lopez * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19549e984eSSergio Lopez * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20549e984eSSergio Lopez * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 21549e984eSSergio Lopez * THE SOFTWARE. 22549e984eSSergio Lopez */ 23549e984eSSergio Lopez #include "qemu/osdep.h" 24549e984eSSergio Lopez #include "qemu/error-report.h" 25549e984eSSergio Lopez #include "qemu/option.h" 26549e984eSSergio Lopez #include "qemu/cutils.h" 27549e984eSSergio Lopez #include "qemu/units.h" 28549e984eSSergio Lopez #include "qemu-common.h" 29549e984eSSergio Lopez #include "qapi/error.h" 30549e984eSSergio Lopez #include "qapi/qmp/qerror.h" 31549e984eSSergio Lopez #include "qapi/qapi-visit-common.h" 32549e984eSSergio Lopez #include "qapi/visitor.h" 33549e984eSSergio Lopez #include "sysemu/qtest.h" 34549e984eSSergio Lopez #include "sysemu/numa.h" 35549e984eSSergio Lopez #include "sysemu/replay.h" 36549e984eSSergio Lopez #include "sysemu/sysemu.h" 37740b1759SClaudio Fontana #include "sysemu/cpu-timers.h" 3889a289c7SPaolo Bonzini #include "trace.h" 39549e984eSSergio Lopez 40549e984eSSergio Lopez #include "hw/i386/x86.h" 41549e984eSSergio Lopez #include "target/i386/cpu.h" 42549e984eSSergio Lopez #include "hw/i386/topology.h" 43549e984eSSergio Lopez #include "hw/i386/fw_cfg.h" 44852c27e2SPaolo Bonzini #include "hw/intc/i8259.h" 450cca1a91SGerd Hoffmann #include "hw/rtc/mc146818rtc.h" 46549e984eSSergio Lopez 47549e984eSSergio Lopez #include "hw/acpi/cpu_hotplug.h" 4889a289c7SPaolo Bonzini #include "hw/irq.h" 49549e984eSSergio Lopez #include "hw/nmi.h" 50549e984eSSergio Lopez #include "hw/loader.h" 51549e984eSSergio Lopez #include "multiboot.h" 52549e984eSSergio Lopez #include "elf.h" 53549e984eSSergio Lopez #include "standard-headers/asm-x86/bootparam.h" 542becc36aSPaolo Bonzini #include CONFIG_DEVICES 5589a289c7SPaolo Bonzini #include "kvm_i386.h" 56549e984eSSergio Lopez 57549e984eSSergio Lopez #define BIOS_FILENAME "bios.bin" 58549e984eSSergio Lopez 59549e984eSSergio Lopez /* Physical Address of PVH entry point read from kernel ELF NOTE */ 60549e984eSSergio Lopez static size_t pvh_start_addr; 61549e984eSSergio Lopez 6253a5e7bdSBabu Moger inline void init_topo_info(X86CPUTopoInfo *topo_info, 6353a5e7bdSBabu Moger const X86MachineState *x86ms) 6453a5e7bdSBabu Moger { 6553a5e7bdSBabu Moger MachineState *ms = MACHINE(x86ms); 6653a5e7bdSBabu Moger 6753a5e7bdSBabu Moger topo_info->dies_per_pkg = x86ms->smp_dies; 6853a5e7bdSBabu Moger topo_info->cores_per_die = ms->smp.cores; 6953a5e7bdSBabu Moger topo_info->threads_per_core = ms->smp.threads; 7053a5e7bdSBabu Moger } 7153a5e7bdSBabu Moger 72549e984eSSergio Lopez /* 73549e984eSSergio Lopez * Calculates initial APIC ID for a specific CPU index 74549e984eSSergio Lopez * 75549e984eSSergio Lopez * Currently we need to be able to calculate the APIC ID from the CPU index 76549e984eSSergio Lopez * alone (without requiring a CPU object), as the QEMU<->Seabios interfaces have 77549e984eSSergio Lopez * no concept of "CPU index", and the NUMA tables on fw_cfg need the APIC ID of 78549e984eSSergio Lopez * all CPUs up to max_cpus. 79549e984eSSergio Lopez */ 80703a548aSSergio Lopez uint32_t x86_cpu_apic_id_from_index(X86MachineState *x86ms, 81549e984eSSergio Lopez unsigned int cpu_index) 82549e984eSSergio Lopez { 83f0bb276bSPaolo Bonzini X86MachineClass *x86mc = X86_MACHINE_GET_CLASS(x86ms); 8453a5e7bdSBabu Moger X86CPUTopoInfo topo_info; 85549e984eSSergio Lopez uint32_t correct_id; 86549e984eSSergio Lopez static bool warned; 87549e984eSSergio Lopez 8853a5e7bdSBabu Moger init_topo_info(&topo_info, x86ms); 8953a5e7bdSBabu Moger 90dfe7ed0aSBabu Moger correct_id = x86_apicid_from_cpu_idx(&topo_info, cpu_index); 91f0bb276bSPaolo Bonzini if (x86mc->compat_apic_id_mode) { 92549e984eSSergio Lopez if (cpu_index != correct_id && !warned && !qtest_enabled()) { 93549e984eSSergio Lopez error_report("APIC IDs set in compatibility mode, " 94549e984eSSergio Lopez "CPU topology won't match the configuration"); 95549e984eSSergio Lopez warned = true; 96549e984eSSergio Lopez } 97549e984eSSergio Lopez return cpu_index; 98549e984eSSergio Lopez } else { 99549e984eSSergio Lopez return correct_id; 100549e984eSSergio Lopez } 101549e984eSSergio Lopez } 102549e984eSSergio Lopez 103703a548aSSergio Lopez 104703a548aSSergio Lopez void x86_cpu_new(X86MachineState *x86ms, int64_t apic_id, Error **errp) 105549e984eSSergio Lopez { 10618d588feSMarkus Armbruster Object *cpu = object_new(MACHINE(x86ms)->cpu_type); 107549e984eSSergio Lopez 108992861fbSMarkus Armbruster if (!object_property_set_uint(cpu, "apic-id", apic_id, errp)) { 10918d588feSMarkus Armbruster goto out; 11018d588feSMarkus Armbruster } 111992861fbSMarkus Armbruster qdev_realize(DEVICE(cpu), NULL, errp); 112549e984eSSergio Lopez 11318d588feSMarkus Armbruster out: 114549e984eSSergio Lopez object_unref(cpu); 115549e984eSSergio Lopez } 116549e984eSSergio Lopez 117703a548aSSergio Lopez void x86_cpus_init(X86MachineState *x86ms, int default_cpu_version) 118549e984eSSergio Lopez { 119549e984eSSergio Lopez int i; 120549e984eSSergio Lopez const CPUArchIdList *possible_cpus; 121703a548aSSergio Lopez MachineState *ms = MACHINE(x86ms); 122703a548aSSergio Lopez MachineClass *mc = MACHINE_GET_CLASS(x86ms); 123549e984eSSergio Lopez 124703a548aSSergio Lopez x86_cpu_set_default_version(default_cpu_version); 125549e984eSSergio Lopez 126549e984eSSergio Lopez /* 127549e984eSSergio Lopez * Calculates the limit to CPU APIC ID values 128549e984eSSergio Lopez * 129549e984eSSergio Lopez * Limit for the APIC ID value, so that all 130703a548aSSergio Lopez * CPU APIC IDs are < x86ms->apic_id_limit. 131549e984eSSergio Lopez * 132549e984eSSergio Lopez * This is used for FW_CFG_MAX_CPUS. See comments on fw_cfg_arch_create(). 133549e984eSSergio Lopez */ 134703a548aSSergio Lopez x86ms->apic_id_limit = x86_cpu_apic_id_from_index(x86ms, 135549e984eSSergio Lopez ms->smp.max_cpus - 1) + 1; 136549e984eSSergio Lopez possible_cpus = mc->possible_cpu_arch_ids(ms); 137549e984eSSergio Lopez for (i = 0; i < ms->smp.cpus; i++) { 138703a548aSSergio Lopez x86_cpu_new(x86ms, possible_cpus->cpus[i].arch_id, &error_fatal); 139549e984eSSergio Lopez } 140549e984eSSergio Lopez } 141549e984eSSergio Lopez 1420cca1a91SGerd Hoffmann void x86_rtc_set_cpus_count(ISADevice *rtc, uint16_t cpus_count) 1430cca1a91SGerd Hoffmann { 1440cca1a91SGerd Hoffmann if (cpus_count > 0xff) { 1450cca1a91SGerd Hoffmann /* 1460cca1a91SGerd Hoffmann * If the number of CPUs can't be represented in 8 bits, the 1470cca1a91SGerd Hoffmann * BIOS must use "FW_CFG_NB_CPUS". Set RTC field to 0 just 1480cca1a91SGerd Hoffmann * to make old BIOSes fail more predictably. 1490cca1a91SGerd Hoffmann */ 1500cca1a91SGerd Hoffmann rtc_set_memory(rtc, 0x5f, 0); 1510cca1a91SGerd Hoffmann } else { 1520cca1a91SGerd Hoffmann rtc_set_memory(rtc, 0x5f, cpus_count - 1); 1530cca1a91SGerd Hoffmann } 1540cca1a91SGerd Hoffmann } 1550cca1a91SGerd Hoffmann 1560cca1a91SGerd Hoffmann static int x86_apic_cmp(const void *a, const void *b) 1570cca1a91SGerd Hoffmann { 1580cca1a91SGerd Hoffmann CPUArchId *apic_a = (CPUArchId *)a; 1590cca1a91SGerd Hoffmann CPUArchId *apic_b = (CPUArchId *)b; 1600cca1a91SGerd Hoffmann 1610cca1a91SGerd Hoffmann return apic_a->arch_id - apic_b->arch_id; 1620cca1a91SGerd Hoffmann } 1630cca1a91SGerd Hoffmann 1640cca1a91SGerd Hoffmann /* 1650cca1a91SGerd Hoffmann * returns pointer to CPUArchId descriptor that matches CPU's apic_id 1660cca1a91SGerd Hoffmann * in ms->possible_cpus->cpus, if ms->possible_cpus->cpus has no 1670cca1a91SGerd Hoffmann * entry corresponding to CPU's apic_id returns NULL. 1680cca1a91SGerd Hoffmann */ 1690cca1a91SGerd Hoffmann CPUArchId *x86_find_cpu_slot(MachineState *ms, uint32_t id, int *idx) 1700cca1a91SGerd Hoffmann { 1710cca1a91SGerd Hoffmann CPUArchId apic_id, *found_cpu; 1720cca1a91SGerd Hoffmann 1730cca1a91SGerd Hoffmann apic_id.arch_id = id; 1740cca1a91SGerd Hoffmann found_cpu = bsearch(&apic_id, ms->possible_cpus->cpus, 1750cca1a91SGerd Hoffmann ms->possible_cpus->len, sizeof(*ms->possible_cpus->cpus), 1760cca1a91SGerd Hoffmann x86_apic_cmp); 1770cca1a91SGerd Hoffmann if (found_cpu && idx) { 1780cca1a91SGerd Hoffmann *idx = found_cpu - ms->possible_cpus->cpus; 1790cca1a91SGerd Hoffmann } 1800cca1a91SGerd Hoffmann return found_cpu; 1810cca1a91SGerd Hoffmann } 1820cca1a91SGerd Hoffmann 1830cca1a91SGerd Hoffmann void x86_cpu_plug(HotplugHandler *hotplug_dev, 1840cca1a91SGerd Hoffmann DeviceState *dev, Error **errp) 1850cca1a91SGerd Hoffmann { 1860cca1a91SGerd Hoffmann CPUArchId *found_cpu; 1870cca1a91SGerd Hoffmann Error *local_err = NULL; 1880cca1a91SGerd Hoffmann X86CPU *cpu = X86_CPU(dev); 1890cca1a91SGerd Hoffmann X86MachineState *x86ms = X86_MACHINE(hotplug_dev); 1900cca1a91SGerd Hoffmann 1910cca1a91SGerd Hoffmann if (x86ms->acpi_dev) { 1920cca1a91SGerd Hoffmann hotplug_handler_plug(x86ms->acpi_dev, dev, &local_err); 1930cca1a91SGerd Hoffmann if (local_err) { 1940cca1a91SGerd Hoffmann goto out; 1950cca1a91SGerd Hoffmann } 1960cca1a91SGerd Hoffmann } 1970cca1a91SGerd Hoffmann 1980cca1a91SGerd Hoffmann /* increment the number of CPUs */ 1990cca1a91SGerd Hoffmann x86ms->boot_cpus++; 2000cca1a91SGerd Hoffmann if (x86ms->rtc) { 2010cca1a91SGerd Hoffmann x86_rtc_set_cpus_count(x86ms->rtc, x86ms->boot_cpus); 2020cca1a91SGerd Hoffmann } 2030cca1a91SGerd Hoffmann if (x86ms->fw_cfg) { 2040cca1a91SGerd Hoffmann fw_cfg_modify_i16(x86ms->fw_cfg, FW_CFG_NB_CPUS, x86ms->boot_cpus); 2050cca1a91SGerd Hoffmann } 2060cca1a91SGerd Hoffmann 2070cca1a91SGerd Hoffmann found_cpu = x86_find_cpu_slot(MACHINE(x86ms), cpu->apic_id, NULL); 2080cca1a91SGerd Hoffmann found_cpu->cpu = OBJECT(dev); 2090cca1a91SGerd Hoffmann out: 2100cca1a91SGerd Hoffmann error_propagate(errp, local_err); 2110cca1a91SGerd Hoffmann } 2120cca1a91SGerd Hoffmann 2130cca1a91SGerd Hoffmann void x86_cpu_unplug_request_cb(HotplugHandler *hotplug_dev, 2140cca1a91SGerd Hoffmann DeviceState *dev, Error **errp) 2150cca1a91SGerd Hoffmann { 2160cca1a91SGerd Hoffmann int idx = -1; 2170cca1a91SGerd Hoffmann X86CPU *cpu = X86_CPU(dev); 2180cca1a91SGerd Hoffmann X86MachineState *x86ms = X86_MACHINE(hotplug_dev); 2190cca1a91SGerd Hoffmann 2200cca1a91SGerd Hoffmann if (!x86ms->acpi_dev) { 2210cca1a91SGerd Hoffmann error_setg(errp, "CPU hot unplug not supported without ACPI"); 2220cca1a91SGerd Hoffmann return; 2230cca1a91SGerd Hoffmann } 2240cca1a91SGerd Hoffmann 2250cca1a91SGerd Hoffmann x86_find_cpu_slot(MACHINE(x86ms), cpu->apic_id, &idx); 2260cca1a91SGerd Hoffmann assert(idx != -1); 2270cca1a91SGerd Hoffmann if (idx == 0) { 2280cca1a91SGerd Hoffmann error_setg(errp, "Boot CPU is unpluggable"); 2290cca1a91SGerd Hoffmann return; 2300cca1a91SGerd Hoffmann } 2310cca1a91SGerd Hoffmann 2320cca1a91SGerd Hoffmann hotplug_handler_unplug_request(x86ms->acpi_dev, dev, 2330cca1a91SGerd Hoffmann errp); 2340cca1a91SGerd Hoffmann } 2350cca1a91SGerd Hoffmann 2360cca1a91SGerd Hoffmann void x86_cpu_unplug_cb(HotplugHandler *hotplug_dev, 2370cca1a91SGerd Hoffmann DeviceState *dev, Error **errp) 2380cca1a91SGerd Hoffmann { 2390cca1a91SGerd Hoffmann CPUArchId *found_cpu; 2400cca1a91SGerd Hoffmann Error *local_err = NULL; 2410cca1a91SGerd Hoffmann X86CPU *cpu = X86_CPU(dev); 2420cca1a91SGerd Hoffmann X86MachineState *x86ms = X86_MACHINE(hotplug_dev); 2430cca1a91SGerd Hoffmann 2440cca1a91SGerd Hoffmann hotplug_handler_unplug(x86ms->acpi_dev, dev, &local_err); 2450cca1a91SGerd Hoffmann if (local_err) { 2460cca1a91SGerd Hoffmann goto out; 2470cca1a91SGerd Hoffmann } 2480cca1a91SGerd Hoffmann 2490cca1a91SGerd Hoffmann found_cpu = x86_find_cpu_slot(MACHINE(x86ms), cpu->apic_id, NULL); 2500cca1a91SGerd Hoffmann found_cpu->cpu = NULL; 2510cca1a91SGerd Hoffmann qdev_unrealize(dev); 2520cca1a91SGerd Hoffmann 2530cca1a91SGerd Hoffmann /* decrement the number of CPUs */ 2540cca1a91SGerd Hoffmann x86ms->boot_cpus--; 2550cca1a91SGerd Hoffmann /* Update the number of CPUs in CMOS */ 2560cca1a91SGerd Hoffmann x86_rtc_set_cpus_count(x86ms->rtc, x86ms->boot_cpus); 2570cca1a91SGerd Hoffmann fw_cfg_modify_i16(x86ms->fw_cfg, FW_CFG_NB_CPUS, x86ms->boot_cpus); 2580cca1a91SGerd Hoffmann out: 2590cca1a91SGerd Hoffmann error_propagate(errp, local_err); 2600cca1a91SGerd Hoffmann } 2610cca1a91SGerd Hoffmann 2620cca1a91SGerd Hoffmann void x86_cpu_pre_plug(HotplugHandler *hotplug_dev, 2630cca1a91SGerd Hoffmann DeviceState *dev, Error **errp) 2640cca1a91SGerd Hoffmann { 2650cca1a91SGerd Hoffmann int idx; 2660cca1a91SGerd Hoffmann CPUState *cs; 2670cca1a91SGerd Hoffmann CPUArchId *cpu_slot; 2680cca1a91SGerd Hoffmann X86CPUTopoIDs topo_ids; 2690cca1a91SGerd Hoffmann X86CPU *cpu = X86_CPU(dev); 2700cca1a91SGerd Hoffmann CPUX86State *env = &cpu->env; 2710cca1a91SGerd Hoffmann MachineState *ms = MACHINE(hotplug_dev); 2720cca1a91SGerd Hoffmann X86MachineState *x86ms = X86_MACHINE(hotplug_dev); 2730cca1a91SGerd Hoffmann unsigned int smp_cores = ms->smp.cores; 2740cca1a91SGerd Hoffmann unsigned int smp_threads = ms->smp.threads; 2750cca1a91SGerd Hoffmann X86CPUTopoInfo topo_info; 2760cca1a91SGerd Hoffmann 2770cca1a91SGerd Hoffmann if (!object_dynamic_cast(OBJECT(cpu), ms->cpu_type)) { 2780cca1a91SGerd Hoffmann error_setg(errp, "Invalid CPU type, expected cpu type: '%s'", 2790cca1a91SGerd Hoffmann ms->cpu_type); 2800cca1a91SGerd Hoffmann return; 2810cca1a91SGerd Hoffmann } 2820cca1a91SGerd Hoffmann 283c5be7517SIgor Mammedov if (x86ms->acpi_dev) { 284c5be7517SIgor Mammedov Error *local_err = NULL; 285c5be7517SIgor Mammedov 286c5be7517SIgor Mammedov hotplug_handler_pre_plug(HOTPLUG_HANDLER(x86ms->acpi_dev), dev, 287c5be7517SIgor Mammedov &local_err); 288c5be7517SIgor Mammedov if (local_err) { 289c5be7517SIgor Mammedov error_propagate(errp, local_err); 290c5be7517SIgor Mammedov return; 291c5be7517SIgor Mammedov } 292c5be7517SIgor Mammedov } 293c5be7517SIgor Mammedov 2940cca1a91SGerd Hoffmann init_topo_info(&topo_info, x86ms); 2950cca1a91SGerd Hoffmann 2960cca1a91SGerd Hoffmann env->nr_dies = x86ms->smp_dies; 2970cca1a91SGerd Hoffmann 2980cca1a91SGerd Hoffmann /* 2990cca1a91SGerd Hoffmann * If APIC ID is not set, 3000cca1a91SGerd Hoffmann * set it based on socket/die/core/thread properties. 3010cca1a91SGerd Hoffmann */ 3020cca1a91SGerd Hoffmann if (cpu->apic_id == UNASSIGNED_APIC_ID) { 3030cca1a91SGerd Hoffmann int max_socket = (ms->smp.max_cpus - 1) / 3040cca1a91SGerd Hoffmann smp_threads / smp_cores / x86ms->smp_dies; 3050cca1a91SGerd Hoffmann 3060cca1a91SGerd Hoffmann /* 3070cca1a91SGerd Hoffmann * die-id was optional in QEMU 4.0 and older, so keep it optional 3080cca1a91SGerd Hoffmann * if there's only one die per socket. 3090cca1a91SGerd Hoffmann */ 3100cca1a91SGerd Hoffmann if (cpu->die_id < 0 && x86ms->smp_dies == 1) { 3110cca1a91SGerd Hoffmann cpu->die_id = 0; 3120cca1a91SGerd Hoffmann } 3130cca1a91SGerd Hoffmann 3140cca1a91SGerd Hoffmann if (cpu->socket_id < 0) { 3150cca1a91SGerd Hoffmann error_setg(errp, "CPU socket-id is not set"); 3160cca1a91SGerd Hoffmann return; 3170cca1a91SGerd Hoffmann } else if (cpu->socket_id > max_socket) { 3180cca1a91SGerd Hoffmann error_setg(errp, "Invalid CPU socket-id: %u must be in range 0:%u", 3190cca1a91SGerd Hoffmann cpu->socket_id, max_socket); 3200cca1a91SGerd Hoffmann return; 3210cca1a91SGerd Hoffmann } 3220cca1a91SGerd Hoffmann if (cpu->die_id < 0) { 3230cca1a91SGerd Hoffmann error_setg(errp, "CPU die-id is not set"); 3240cca1a91SGerd Hoffmann return; 3250cca1a91SGerd Hoffmann } else if (cpu->die_id > x86ms->smp_dies - 1) { 3260cca1a91SGerd Hoffmann error_setg(errp, "Invalid CPU die-id: %u must be in range 0:%u", 3270cca1a91SGerd Hoffmann cpu->die_id, x86ms->smp_dies - 1); 3280cca1a91SGerd Hoffmann return; 3290cca1a91SGerd Hoffmann } 3300cca1a91SGerd Hoffmann if (cpu->core_id < 0) { 3310cca1a91SGerd Hoffmann error_setg(errp, "CPU core-id is not set"); 3320cca1a91SGerd Hoffmann return; 3330cca1a91SGerd Hoffmann } else if (cpu->core_id > (smp_cores - 1)) { 3340cca1a91SGerd Hoffmann error_setg(errp, "Invalid CPU core-id: %u must be in range 0:%u", 3350cca1a91SGerd Hoffmann cpu->core_id, smp_cores - 1); 3360cca1a91SGerd Hoffmann return; 3370cca1a91SGerd Hoffmann } 3380cca1a91SGerd Hoffmann if (cpu->thread_id < 0) { 3390cca1a91SGerd Hoffmann error_setg(errp, "CPU thread-id is not set"); 3400cca1a91SGerd Hoffmann return; 3410cca1a91SGerd Hoffmann } else if (cpu->thread_id > (smp_threads - 1)) { 3420cca1a91SGerd Hoffmann error_setg(errp, "Invalid CPU thread-id: %u must be in range 0:%u", 3430cca1a91SGerd Hoffmann cpu->thread_id, smp_threads - 1); 3440cca1a91SGerd Hoffmann return; 3450cca1a91SGerd Hoffmann } 3460cca1a91SGerd Hoffmann 3470cca1a91SGerd Hoffmann topo_ids.pkg_id = cpu->socket_id; 3480cca1a91SGerd Hoffmann topo_ids.die_id = cpu->die_id; 3490cca1a91SGerd Hoffmann topo_ids.core_id = cpu->core_id; 3500cca1a91SGerd Hoffmann topo_ids.smt_id = cpu->thread_id; 3510cca1a91SGerd Hoffmann cpu->apic_id = x86_apicid_from_topo_ids(&topo_info, &topo_ids); 3520cca1a91SGerd Hoffmann } 3530cca1a91SGerd Hoffmann 3540cca1a91SGerd Hoffmann cpu_slot = x86_find_cpu_slot(MACHINE(x86ms), cpu->apic_id, &idx); 3550cca1a91SGerd Hoffmann if (!cpu_slot) { 3560cca1a91SGerd Hoffmann MachineState *ms = MACHINE(x86ms); 3570cca1a91SGerd Hoffmann 3580cca1a91SGerd Hoffmann x86_topo_ids_from_apicid(cpu->apic_id, &topo_info, &topo_ids); 3590cca1a91SGerd Hoffmann error_setg(errp, 3600cca1a91SGerd Hoffmann "Invalid CPU [socket: %u, die: %u, core: %u, thread: %u] with" 3610cca1a91SGerd Hoffmann " APIC ID %" PRIu32 ", valid index range 0:%d", 3620cca1a91SGerd Hoffmann topo_ids.pkg_id, topo_ids.die_id, topo_ids.core_id, topo_ids.smt_id, 3630cca1a91SGerd Hoffmann cpu->apic_id, ms->possible_cpus->len - 1); 3640cca1a91SGerd Hoffmann return; 3650cca1a91SGerd Hoffmann } 3660cca1a91SGerd Hoffmann 3670cca1a91SGerd Hoffmann if (cpu_slot->cpu) { 3680cca1a91SGerd Hoffmann error_setg(errp, "CPU[%d] with APIC ID %" PRIu32 " exists", 3690cca1a91SGerd Hoffmann idx, cpu->apic_id); 3700cca1a91SGerd Hoffmann return; 3710cca1a91SGerd Hoffmann } 3720cca1a91SGerd Hoffmann 3730cca1a91SGerd Hoffmann /* if 'address' properties socket-id/core-id/thread-id are not set, set them 3740cca1a91SGerd Hoffmann * so that machine_query_hotpluggable_cpus would show correct values 3750cca1a91SGerd Hoffmann */ 3760cca1a91SGerd Hoffmann /* TODO: move socket_id/core_id/thread_id checks into x86_cpu_realizefn() 3770cca1a91SGerd Hoffmann * once -smp refactoring is complete and there will be CPU private 3780cca1a91SGerd Hoffmann * CPUState::nr_cores and CPUState::nr_threads fields instead of globals */ 3790cca1a91SGerd Hoffmann x86_topo_ids_from_apicid(cpu->apic_id, &topo_info, &topo_ids); 3800cca1a91SGerd Hoffmann if (cpu->socket_id != -1 && cpu->socket_id != topo_ids.pkg_id) { 3810cca1a91SGerd Hoffmann error_setg(errp, "property socket-id: %u doesn't match set apic-id:" 3820cca1a91SGerd Hoffmann " 0x%x (socket-id: %u)", cpu->socket_id, cpu->apic_id, 3830cca1a91SGerd Hoffmann topo_ids.pkg_id); 3840cca1a91SGerd Hoffmann return; 3850cca1a91SGerd Hoffmann } 3860cca1a91SGerd Hoffmann cpu->socket_id = topo_ids.pkg_id; 3870cca1a91SGerd Hoffmann 3880cca1a91SGerd Hoffmann if (cpu->die_id != -1 && cpu->die_id != topo_ids.die_id) { 3890cca1a91SGerd Hoffmann error_setg(errp, "property die-id: %u doesn't match set apic-id:" 3900cca1a91SGerd Hoffmann " 0x%x (die-id: %u)", cpu->die_id, cpu->apic_id, topo_ids.die_id); 3910cca1a91SGerd Hoffmann return; 3920cca1a91SGerd Hoffmann } 3930cca1a91SGerd Hoffmann cpu->die_id = topo_ids.die_id; 3940cca1a91SGerd Hoffmann 3950cca1a91SGerd Hoffmann if (cpu->core_id != -1 && cpu->core_id != topo_ids.core_id) { 3960cca1a91SGerd Hoffmann error_setg(errp, "property core-id: %u doesn't match set apic-id:" 3970cca1a91SGerd Hoffmann " 0x%x (core-id: %u)", cpu->core_id, cpu->apic_id, 3980cca1a91SGerd Hoffmann topo_ids.core_id); 3990cca1a91SGerd Hoffmann return; 4000cca1a91SGerd Hoffmann } 4010cca1a91SGerd Hoffmann cpu->core_id = topo_ids.core_id; 4020cca1a91SGerd Hoffmann 4030cca1a91SGerd Hoffmann if (cpu->thread_id != -1 && cpu->thread_id != topo_ids.smt_id) { 4040cca1a91SGerd Hoffmann error_setg(errp, "property thread-id: %u doesn't match set apic-id:" 4050cca1a91SGerd Hoffmann " 0x%x (thread-id: %u)", cpu->thread_id, cpu->apic_id, 4060cca1a91SGerd Hoffmann topo_ids.smt_id); 4070cca1a91SGerd Hoffmann return; 4080cca1a91SGerd Hoffmann } 4090cca1a91SGerd Hoffmann cpu->thread_id = topo_ids.smt_id; 4100cca1a91SGerd Hoffmann 4110cca1a91SGerd Hoffmann if (hyperv_feat_enabled(cpu, HYPERV_FEAT_VPINDEX) && 4120cca1a91SGerd Hoffmann !kvm_hv_vpindex_settable()) { 4130cca1a91SGerd Hoffmann error_setg(errp, "kernel doesn't allow setting HyperV VP_INDEX"); 4140cca1a91SGerd Hoffmann return; 4150cca1a91SGerd Hoffmann } 4160cca1a91SGerd Hoffmann 4170cca1a91SGerd Hoffmann cs = CPU(cpu); 4180cca1a91SGerd Hoffmann cs->cpu_index = idx; 4190cca1a91SGerd Hoffmann 4200cca1a91SGerd Hoffmann numa_cpu_pre_plug(cpu_slot, dev, errp); 4210cca1a91SGerd Hoffmann } 4220cca1a91SGerd Hoffmann 423549e984eSSergio Lopez CpuInstanceProperties 424549e984eSSergio Lopez x86_cpu_index_to_props(MachineState *ms, unsigned cpu_index) 425549e984eSSergio Lopez { 426549e984eSSergio Lopez MachineClass *mc = MACHINE_GET_CLASS(ms); 427549e984eSSergio Lopez const CPUArchIdList *possible_cpus = mc->possible_cpu_arch_ids(ms); 428549e984eSSergio Lopez 429549e984eSSergio Lopez assert(cpu_index < possible_cpus->len); 430549e984eSSergio Lopez return possible_cpus->cpus[cpu_index].props; 431549e984eSSergio Lopez } 432549e984eSSergio Lopez 433549e984eSSergio Lopez int64_t x86_get_default_cpu_node_id(const MachineState *ms, int idx) 434549e984eSSergio Lopez { 435dcf08bc6SBabu Moger X86CPUTopoIDs topo_ids; 436f0bb276bSPaolo Bonzini X86MachineState *x86ms = X86_MACHINE(ms); 43753a5e7bdSBabu Moger X86CPUTopoInfo topo_info; 43853a5e7bdSBabu Moger 43953a5e7bdSBabu Moger init_topo_info(&topo_info, x86ms); 440549e984eSSergio Lopez 441549e984eSSergio Lopez assert(idx < ms->possible_cpus->len); 442dfe7ed0aSBabu Moger x86_topo_ids_from_apicid(ms->possible_cpus->cpus[idx].arch_id, 443dfe7ed0aSBabu Moger &topo_info, &topo_ids); 444dcf08bc6SBabu Moger return topo_ids.pkg_id % ms->numa_state->num_nodes; 445549e984eSSergio Lopez } 446549e984eSSergio Lopez 447549e984eSSergio Lopez const CPUArchIdList *x86_possible_cpu_arch_ids(MachineState *ms) 448549e984eSSergio Lopez { 449f0bb276bSPaolo Bonzini X86MachineState *x86ms = X86_MACHINE(ms); 450549e984eSSergio Lopez unsigned int max_cpus = ms->smp.max_cpus; 45153a5e7bdSBabu Moger X86CPUTopoInfo topo_info; 45253a5e7bdSBabu Moger int i; 453549e984eSSergio Lopez 454549e984eSSergio Lopez if (ms->possible_cpus) { 455549e984eSSergio Lopez /* 456549e984eSSergio Lopez * make sure that max_cpus hasn't changed since the first use, i.e. 457549e984eSSergio Lopez * -smp hasn't been parsed after it 458549e984eSSergio Lopez */ 459549e984eSSergio Lopez assert(ms->possible_cpus->len == max_cpus); 460549e984eSSergio Lopez return ms->possible_cpus; 461549e984eSSergio Lopez } 462549e984eSSergio Lopez 463549e984eSSergio Lopez ms->possible_cpus = g_malloc0(sizeof(CPUArchIdList) + 464549e984eSSergio Lopez sizeof(CPUArchId) * max_cpus); 465549e984eSSergio Lopez ms->possible_cpus->len = max_cpus; 46653a5e7bdSBabu Moger 46753a5e7bdSBabu Moger init_topo_info(&topo_info, x86ms); 46853a5e7bdSBabu Moger 469549e984eSSergio Lopez for (i = 0; i < ms->possible_cpus->len; i++) { 470dcf08bc6SBabu Moger X86CPUTopoIDs topo_ids; 471549e984eSSergio Lopez 472549e984eSSergio Lopez ms->possible_cpus->cpus[i].type = ms->cpu_type; 473549e984eSSergio Lopez ms->possible_cpus->cpus[i].vcpus_count = 1; 474dfe7ed0aSBabu Moger ms->possible_cpus->cpus[i].arch_id = 475dfe7ed0aSBabu Moger x86_cpu_apic_id_from_index(x86ms, i); 476dfe7ed0aSBabu Moger x86_topo_ids_from_apicid(ms->possible_cpus->cpus[i].arch_id, 477dfe7ed0aSBabu Moger &topo_info, &topo_ids); 478549e984eSSergio Lopez ms->possible_cpus->cpus[i].props.has_socket_id = true; 479dcf08bc6SBabu Moger ms->possible_cpus->cpus[i].props.socket_id = topo_ids.pkg_id; 480f0bb276bSPaolo Bonzini if (x86ms->smp_dies > 1) { 481549e984eSSergio Lopez ms->possible_cpus->cpus[i].props.has_die_id = true; 482dcf08bc6SBabu Moger ms->possible_cpus->cpus[i].props.die_id = topo_ids.die_id; 483549e984eSSergio Lopez } 484549e984eSSergio Lopez ms->possible_cpus->cpus[i].props.has_core_id = true; 485dcf08bc6SBabu Moger ms->possible_cpus->cpus[i].props.core_id = topo_ids.core_id; 486549e984eSSergio Lopez ms->possible_cpus->cpus[i].props.has_thread_id = true; 487dcf08bc6SBabu Moger ms->possible_cpus->cpus[i].props.thread_id = topo_ids.smt_id; 488549e984eSSergio Lopez } 489549e984eSSergio Lopez return ms->possible_cpus; 490549e984eSSergio Lopez } 491549e984eSSergio Lopez 492f0bb276bSPaolo Bonzini static void x86_nmi(NMIState *n, int cpu_index, Error **errp) 493f0bb276bSPaolo Bonzini { 494f0bb276bSPaolo Bonzini /* cpu index isn't used */ 495f0bb276bSPaolo Bonzini CPUState *cs; 496f0bb276bSPaolo Bonzini 497f0bb276bSPaolo Bonzini CPU_FOREACH(cs) { 498f0bb276bSPaolo Bonzini X86CPU *cpu = X86_CPU(cs); 499f0bb276bSPaolo Bonzini 500f0bb276bSPaolo Bonzini if (!cpu->apic_state) { 501f0bb276bSPaolo Bonzini cpu_interrupt(cs, CPU_INTERRUPT_NMI); 502f0bb276bSPaolo Bonzini } else { 503f0bb276bSPaolo Bonzini apic_deliver_nmi(cpu->apic_state); 504f0bb276bSPaolo Bonzini } 505f0bb276bSPaolo Bonzini } 506f0bb276bSPaolo Bonzini } 507f0bb276bSPaolo Bonzini 508549e984eSSergio Lopez static long get_file_size(FILE *f) 509549e984eSSergio Lopez { 510549e984eSSergio Lopez long where, size; 511549e984eSSergio Lopez 512549e984eSSergio Lopez /* XXX: on Unix systems, using fstat() probably makes more sense */ 513549e984eSSergio Lopez 514549e984eSSergio Lopez where = ftell(f); 515549e984eSSergio Lopez fseek(f, 0, SEEK_END); 516549e984eSSergio Lopez size = ftell(f); 517549e984eSSergio Lopez fseek(f, where, SEEK_SET); 518549e984eSSergio Lopez 519549e984eSSergio Lopez return size; 520549e984eSSergio Lopez } 521549e984eSSergio Lopez 52289a289c7SPaolo Bonzini /* TSC handling */ 52389a289c7SPaolo Bonzini uint64_t cpu_get_tsc(CPUX86State *env) 52489a289c7SPaolo Bonzini { 525*430065daSClaudio Fontana return cpus_get_elapsed_ticks(); 52689a289c7SPaolo Bonzini } 52789a289c7SPaolo Bonzini 52889a289c7SPaolo Bonzini /* IRQ handling */ 52989a289c7SPaolo Bonzini static void pic_irq_request(void *opaque, int irq, int level) 53089a289c7SPaolo Bonzini { 53189a289c7SPaolo Bonzini CPUState *cs = first_cpu; 53289a289c7SPaolo Bonzini X86CPU *cpu = X86_CPU(cs); 53389a289c7SPaolo Bonzini 53489a289c7SPaolo Bonzini trace_x86_pic_interrupt(irq, level); 53589a289c7SPaolo Bonzini if (cpu->apic_state && !kvm_irqchip_in_kernel()) { 53689a289c7SPaolo Bonzini CPU_FOREACH(cs) { 53789a289c7SPaolo Bonzini cpu = X86_CPU(cs); 53889a289c7SPaolo Bonzini if (apic_accept_pic_intr(cpu->apic_state)) { 53989a289c7SPaolo Bonzini apic_deliver_pic_intr(cpu->apic_state, level); 54089a289c7SPaolo Bonzini } 54189a289c7SPaolo Bonzini } 54289a289c7SPaolo Bonzini } else { 54389a289c7SPaolo Bonzini if (level) { 54489a289c7SPaolo Bonzini cpu_interrupt(cs, CPU_INTERRUPT_HARD); 54589a289c7SPaolo Bonzini } else { 54689a289c7SPaolo Bonzini cpu_reset_interrupt(cs, CPU_INTERRUPT_HARD); 54789a289c7SPaolo Bonzini } 54889a289c7SPaolo Bonzini } 54989a289c7SPaolo Bonzini } 55089a289c7SPaolo Bonzini 55189a289c7SPaolo Bonzini qemu_irq x86_allocate_cpu_irq(void) 55289a289c7SPaolo Bonzini { 55389a289c7SPaolo Bonzini return qemu_allocate_irq(pic_irq_request, NULL, 0); 55489a289c7SPaolo Bonzini } 55589a289c7SPaolo Bonzini 55689a289c7SPaolo Bonzini int cpu_get_pic_interrupt(CPUX86State *env) 55789a289c7SPaolo Bonzini { 55889a289c7SPaolo Bonzini X86CPU *cpu = env_archcpu(env); 55989a289c7SPaolo Bonzini int intno; 56089a289c7SPaolo Bonzini 56189a289c7SPaolo Bonzini if (!kvm_irqchip_in_kernel()) { 56289a289c7SPaolo Bonzini intno = apic_get_interrupt(cpu->apic_state); 56389a289c7SPaolo Bonzini if (intno >= 0) { 56489a289c7SPaolo Bonzini return intno; 56589a289c7SPaolo Bonzini } 56689a289c7SPaolo Bonzini /* read the irq from the PIC */ 56789a289c7SPaolo Bonzini if (!apic_accept_pic_intr(cpu->apic_state)) { 56889a289c7SPaolo Bonzini return -1; 56989a289c7SPaolo Bonzini } 57089a289c7SPaolo Bonzini } 57189a289c7SPaolo Bonzini 57289a289c7SPaolo Bonzini intno = pic_read_irq(isa_pic); 57389a289c7SPaolo Bonzini return intno; 57489a289c7SPaolo Bonzini } 57589a289c7SPaolo Bonzini 57689a289c7SPaolo Bonzini DeviceState *cpu_get_current_apic(void) 57789a289c7SPaolo Bonzini { 57889a289c7SPaolo Bonzini if (current_cpu) { 57989a289c7SPaolo Bonzini X86CPU *cpu = X86_CPU(current_cpu); 58089a289c7SPaolo Bonzini return cpu->apic_state; 58189a289c7SPaolo Bonzini } else { 58289a289c7SPaolo Bonzini return NULL; 58389a289c7SPaolo Bonzini } 58489a289c7SPaolo Bonzini } 58589a289c7SPaolo Bonzini 58689a289c7SPaolo Bonzini void gsi_handler(void *opaque, int n, int level) 58789a289c7SPaolo Bonzini { 58889a289c7SPaolo Bonzini GSIState *s = opaque; 58989a289c7SPaolo Bonzini 59089a289c7SPaolo Bonzini trace_x86_gsi_interrupt(n, level); 59189a289c7SPaolo Bonzini if (n < ISA_NUM_IRQS) { 59264c033baSPhilippe Mathieu-Daudé /* Under KVM, Kernel will forward to both PIC and IOAPIC */ 59389a289c7SPaolo Bonzini qemu_set_irq(s->i8259_irq[n], level); 59489a289c7SPaolo Bonzini } 59589a289c7SPaolo Bonzini qemu_set_irq(s->ioapic_irq[n], level); 59689a289c7SPaolo Bonzini } 59789a289c7SPaolo Bonzini 59889a289c7SPaolo Bonzini void ioapic_init_gsi(GSIState *gsi_state, const char *parent_name) 59989a289c7SPaolo Bonzini { 60089a289c7SPaolo Bonzini DeviceState *dev; 60189a289c7SPaolo Bonzini SysBusDevice *d; 60289a289c7SPaolo Bonzini unsigned int i; 60389a289c7SPaolo Bonzini 60414a1bb48SPhilippe Mathieu-Daudé assert(parent_name); 60589a289c7SPaolo Bonzini if (kvm_ioapic_in_kernel()) { 6063e80f690SMarkus Armbruster dev = qdev_new(TYPE_KVM_IOAPIC); 60789a289c7SPaolo Bonzini } else { 6083e80f690SMarkus Armbruster dev = qdev_new(TYPE_IOAPIC); 60989a289c7SPaolo Bonzini } 61089a289c7SPaolo Bonzini object_property_add_child(object_resolve_path(parent_name, NULL), 611d2623129SMarkus Armbruster "ioapic", OBJECT(dev)); 61289a289c7SPaolo Bonzini d = SYS_BUS_DEVICE(dev); 6133c6ef471SMarkus Armbruster sysbus_realize_and_unref(d, &error_fatal); 61489a289c7SPaolo Bonzini sysbus_mmio_map(d, 0, IO_APIC_DEFAULT_ADDRESS); 61589a289c7SPaolo Bonzini 61689a289c7SPaolo Bonzini for (i = 0; i < IOAPIC_NUM_PINS; i++) { 61789a289c7SPaolo Bonzini gsi_state->ioapic_irq[i] = qdev_get_gpio_in(dev, i); 61889a289c7SPaolo Bonzini } 61989a289c7SPaolo Bonzini } 62089a289c7SPaolo Bonzini 621549e984eSSergio Lopez struct setup_data { 622549e984eSSergio Lopez uint64_t next; 623549e984eSSergio Lopez uint32_t type; 624549e984eSSergio Lopez uint32_t len; 625f7795e40SPhilippe Mathieu-Daudé uint8_t data[]; 626549e984eSSergio Lopez } __attribute__((packed)); 627549e984eSSergio Lopez 628549e984eSSergio Lopez 629549e984eSSergio Lopez /* 630549e984eSSergio Lopez * The entry point into the kernel for PVH boot is different from 631549e984eSSergio Lopez * the native entry point. The PVH entry is defined by the x86/HVM 632549e984eSSergio Lopez * direct boot ABI and is available in an ELFNOTE in the kernel binary. 633549e984eSSergio Lopez * 634549e984eSSergio Lopez * This function is passed to load_elf() when it is called from 635549e984eSSergio Lopez * load_elfboot() which then additionally checks for an ELF Note of 636549e984eSSergio Lopez * type XEN_ELFNOTE_PHYS32_ENTRY and passes it to this function to 637549e984eSSergio Lopez * parse the PVH entry address from the ELF Note. 638549e984eSSergio Lopez * 639549e984eSSergio Lopez * Due to trickery in elf_opts.h, load_elf() is actually available as 640549e984eSSergio Lopez * load_elf32() or load_elf64() and this routine needs to be able 641549e984eSSergio Lopez * to deal with being called as 32 or 64 bit. 642549e984eSSergio Lopez * 643549e984eSSergio Lopez * The address of the PVH entry point is saved to the 'pvh_start_addr' 644549e984eSSergio Lopez * global variable. (although the entry point is 32-bit, the kernel 645549e984eSSergio Lopez * binary can be either 32-bit or 64-bit). 646549e984eSSergio Lopez */ 647549e984eSSergio Lopez static uint64_t read_pvh_start_addr(void *arg1, void *arg2, bool is64) 648549e984eSSergio Lopez { 649549e984eSSergio Lopez size_t *elf_note_data_addr; 650549e984eSSergio Lopez 651549e984eSSergio Lopez /* Check if ELF Note header passed in is valid */ 652549e984eSSergio Lopez if (arg1 == NULL) { 653549e984eSSergio Lopez return 0; 654549e984eSSergio Lopez } 655549e984eSSergio Lopez 656549e984eSSergio Lopez if (is64) { 657549e984eSSergio Lopez struct elf64_note *nhdr64 = (struct elf64_note *)arg1; 658549e984eSSergio Lopez uint64_t nhdr_size64 = sizeof(struct elf64_note); 659549e984eSSergio Lopez uint64_t phdr_align = *(uint64_t *)arg2; 660549e984eSSergio Lopez uint64_t nhdr_namesz = nhdr64->n_namesz; 661549e984eSSergio Lopez 662549e984eSSergio Lopez elf_note_data_addr = 663549e984eSSergio Lopez ((void *)nhdr64) + nhdr_size64 + 664549e984eSSergio Lopez QEMU_ALIGN_UP(nhdr_namesz, phdr_align); 665549e984eSSergio Lopez } else { 666549e984eSSergio Lopez struct elf32_note *nhdr32 = (struct elf32_note *)arg1; 667549e984eSSergio Lopez uint32_t nhdr_size32 = sizeof(struct elf32_note); 668549e984eSSergio Lopez uint32_t phdr_align = *(uint32_t *)arg2; 669549e984eSSergio Lopez uint32_t nhdr_namesz = nhdr32->n_namesz; 670549e984eSSergio Lopez 671549e984eSSergio Lopez elf_note_data_addr = 672549e984eSSergio Lopez ((void *)nhdr32) + nhdr_size32 + 673549e984eSSergio Lopez QEMU_ALIGN_UP(nhdr_namesz, phdr_align); 674549e984eSSergio Lopez } 675549e984eSSergio Lopez 676549e984eSSergio Lopez pvh_start_addr = *elf_note_data_addr; 677549e984eSSergio Lopez 678549e984eSSergio Lopez return pvh_start_addr; 679549e984eSSergio Lopez } 680549e984eSSergio Lopez 681549e984eSSergio Lopez static bool load_elfboot(const char *kernel_filename, 682549e984eSSergio Lopez int kernel_file_size, 683549e984eSSergio Lopez uint8_t *header, 684549e984eSSergio Lopez size_t pvh_xen_start_addr, 685549e984eSSergio Lopez FWCfgState *fw_cfg) 686549e984eSSergio Lopez { 687549e984eSSergio Lopez uint32_t flags = 0; 688549e984eSSergio Lopez uint32_t mh_load_addr = 0; 689549e984eSSergio Lopez uint32_t elf_kernel_size = 0; 690549e984eSSergio Lopez uint64_t elf_entry; 691549e984eSSergio Lopez uint64_t elf_low, elf_high; 692549e984eSSergio Lopez int kernel_size; 693549e984eSSergio Lopez 694549e984eSSergio Lopez if (ldl_p(header) != 0x464c457f) { 695549e984eSSergio Lopez return false; /* no elfboot */ 696549e984eSSergio Lopez } 697549e984eSSergio Lopez 698549e984eSSergio Lopez bool elf_is64 = header[EI_CLASS] == ELFCLASS64; 699549e984eSSergio Lopez flags = elf_is64 ? 700549e984eSSergio Lopez ((Elf64_Ehdr *)header)->e_flags : ((Elf32_Ehdr *)header)->e_flags; 701549e984eSSergio Lopez 702549e984eSSergio Lopez if (flags & 0x00010004) { /* LOAD_ELF_HEADER_HAS_ADDR */ 703549e984eSSergio Lopez error_report("elfboot unsupported flags = %x", flags); 704549e984eSSergio Lopez exit(1); 705549e984eSSergio Lopez } 706549e984eSSergio Lopez 707549e984eSSergio Lopez uint64_t elf_note_type = XEN_ELFNOTE_PHYS32_ENTRY; 708549e984eSSergio Lopez kernel_size = load_elf(kernel_filename, read_pvh_start_addr, 709549e984eSSergio Lopez NULL, &elf_note_type, &elf_entry, 7106cdda0ffSAleksandar Markovic &elf_low, &elf_high, NULL, 0, I386_ELF_MACHINE, 711549e984eSSergio Lopez 0, 0); 712549e984eSSergio Lopez 713549e984eSSergio Lopez if (kernel_size < 0) { 714549e984eSSergio Lopez error_report("Error while loading elf kernel"); 715549e984eSSergio Lopez exit(1); 716549e984eSSergio Lopez } 717549e984eSSergio Lopez mh_load_addr = elf_low; 718549e984eSSergio Lopez elf_kernel_size = elf_high - elf_low; 719549e984eSSergio Lopez 720549e984eSSergio Lopez if (pvh_start_addr == 0) { 721549e984eSSergio Lopez error_report("Error loading uncompressed kernel without PVH ELF Note"); 722549e984eSSergio Lopez exit(1); 723549e984eSSergio Lopez } 724549e984eSSergio Lopez fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ENTRY, pvh_start_addr); 725549e984eSSergio Lopez fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, mh_load_addr); 726549e984eSSergio Lopez fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, elf_kernel_size); 727549e984eSSergio Lopez 728549e984eSSergio Lopez return true; 729549e984eSSergio Lopez } 730549e984eSSergio Lopez 731703a548aSSergio Lopez void x86_load_linux(X86MachineState *x86ms, 732703a548aSSergio Lopez FWCfgState *fw_cfg, 733703a548aSSergio Lopez int acpi_data_size, 734703a548aSSergio Lopez bool pvh_enabled, 735703a548aSSergio Lopez bool linuxboot_dma_enabled) 736549e984eSSergio Lopez { 737549e984eSSergio Lopez uint16_t protocol; 738549e984eSSergio Lopez int setup_size, kernel_size, cmdline_size; 739549e984eSSergio Lopez int dtb_size, setup_data_offset; 740549e984eSSergio Lopez uint32_t initrd_max; 741549e984eSSergio Lopez uint8_t header[8192], *setup, *kernel; 742549e984eSSergio Lopez hwaddr real_addr, prot_addr, cmdline_addr, initrd_addr = 0; 743549e984eSSergio Lopez FILE *f; 744549e984eSSergio Lopez char *vmode; 745703a548aSSergio Lopez MachineState *machine = MACHINE(x86ms); 746549e984eSSergio Lopez struct setup_data *setup_data; 747549e984eSSergio Lopez const char *kernel_filename = machine->kernel_filename; 748549e984eSSergio Lopez const char *initrd_filename = machine->initrd_filename; 749549e984eSSergio Lopez const char *dtb_filename = machine->dtb; 750549e984eSSergio Lopez const char *kernel_cmdline = machine->kernel_cmdline; 751549e984eSSergio Lopez 752549e984eSSergio Lopez /* Align to 16 bytes as a paranoia measure */ 753549e984eSSergio Lopez cmdline_size = (strlen(kernel_cmdline) + 16) & ~15; 754549e984eSSergio Lopez 755549e984eSSergio Lopez /* load the kernel header */ 756549e984eSSergio Lopez f = fopen(kernel_filename, "rb"); 757549e984eSSergio Lopez if (!f) { 758549e984eSSergio Lopez fprintf(stderr, "qemu: could not open kernel file '%s': %s\n", 759549e984eSSergio Lopez kernel_filename, strerror(errno)); 760549e984eSSergio Lopez exit(1); 761549e984eSSergio Lopez } 762549e984eSSergio Lopez 763549e984eSSergio Lopez kernel_size = get_file_size(f); 764549e984eSSergio Lopez if (!kernel_size || 765549e984eSSergio Lopez fread(header, 1, MIN(ARRAY_SIZE(header), kernel_size), f) != 766549e984eSSergio Lopez MIN(ARRAY_SIZE(header), kernel_size)) { 767549e984eSSergio Lopez fprintf(stderr, "qemu: could not load kernel '%s': %s\n", 768549e984eSSergio Lopez kernel_filename, strerror(errno)); 769549e984eSSergio Lopez exit(1); 770549e984eSSergio Lopez } 771549e984eSSergio Lopez 772549e984eSSergio Lopez /* kernel protocol version */ 773549e984eSSergio Lopez if (ldl_p(header + 0x202) == 0x53726448) { 774549e984eSSergio Lopez protocol = lduw_p(header + 0x206); 775549e984eSSergio Lopez } else { 776549e984eSSergio Lopez /* 777549e984eSSergio Lopez * This could be a multiboot kernel. If it is, let's stop treating it 778549e984eSSergio Lopez * like a Linux kernel. 779549e984eSSergio Lopez * Note: some multiboot images could be in the ELF format (the same of 780549e984eSSergio Lopez * PVH), so we try multiboot first since we check the multiboot magic 781549e984eSSergio Lopez * header before to load it. 782549e984eSSergio Lopez */ 783549e984eSSergio Lopez if (load_multiboot(fw_cfg, f, kernel_filename, initrd_filename, 784549e984eSSergio Lopez kernel_cmdline, kernel_size, header)) { 785549e984eSSergio Lopez return; 786549e984eSSergio Lopez } 787549e984eSSergio Lopez /* 788549e984eSSergio Lopez * Check if the file is an uncompressed kernel file (ELF) and load it, 789549e984eSSergio Lopez * saving the PVH entry point used by the x86/HVM direct boot ABI. 790549e984eSSergio Lopez * If load_elfboot() is successful, populate the fw_cfg info. 791549e984eSSergio Lopez */ 792703a548aSSergio Lopez if (pvh_enabled && 793549e984eSSergio Lopez load_elfboot(kernel_filename, kernel_size, 794549e984eSSergio Lopez header, pvh_start_addr, fw_cfg)) { 795549e984eSSergio Lopez fclose(f); 796549e984eSSergio Lopez 797549e984eSSergio Lopez fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_SIZE, 798549e984eSSergio Lopez strlen(kernel_cmdline) + 1); 799549e984eSSergio Lopez fw_cfg_add_string(fw_cfg, FW_CFG_CMDLINE_DATA, kernel_cmdline); 800549e984eSSergio Lopez 801549e984eSSergio Lopez fw_cfg_add_i32(fw_cfg, FW_CFG_SETUP_SIZE, sizeof(header)); 802549e984eSSergio Lopez fw_cfg_add_bytes(fw_cfg, FW_CFG_SETUP_DATA, 803549e984eSSergio Lopez header, sizeof(header)); 804549e984eSSergio Lopez 805549e984eSSergio Lopez /* load initrd */ 806549e984eSSergio Lopez if (initrd_filename) { 807549e984eSSergio Lopez GMappedFile *mapped_file; 808549e984eSSergio Lopez gsize initrd_size; 809549e984eSSergio Lopez gchar *initrd_data; 810549e984eSSergio Lopez GError *gerr = NULL; 811549e984eSSergio Lopez 812549e984eSSergio Lopez mapped_file = g_mapped_file_new(initrd_filename, false, &gerr); 813549e984eSSergio Lopez if (!mapped_file) { 814549e984eSSergio Lopez fprintf(stderr, "qemu: error reading initrd %s: %s\n", 815549e984eSSergio Lopez initrd_filename, gerr->message); 816549e984eSSergio Lopez exit(1); 817549e984eSSergio Lopez } 818f0bb276bSPaolo Bonzini x86ms->initrd_mapped_file = mapped_file; 819549e984eSSergio Lopez 820549e984eSSergio Lopez initrd_data = g_mapped_file_get_contents(mapped_file); 821549e984eSSergio Lopez initrd_size = g_mapped_file_get_length(mapped_file); 822703a548aSSergio Lopez initrd_max = x86ms->below_4g_mem_size - acpi_data_size - 1; 823549e984eSSergio Lopez if (initrd_size >= initrd_max) { 824549e984eSSergio Lopez fprintf(stderr, "qemu: initrd is too large, cannot support." 825549e984eSSergio Lopez "(max: %"PRIu32", need %"PRId64")\n", 826549e984eSSergio Lopez initrd_max, (uint64_t)initrd_size); 827549e984eSSergio Lopez exit(1); 828549e984eSSergio Lopez } 829549e984eSSergio Lopez 830549e984eSSergio Lopez initrd_addr = (initrd_max - initrd_size) & ~4095; 831549e984eSSergio Lopez 832549e984eSSergio Lopez fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_addr); 833549e984eSSergio Lopez fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size); 834549e984eSSergio Lopez fw_cfg_add_bytes(fw_cfg, FW_CFG_INITRD_DATA, initrd_data, 835549e984eSSergio Lopez initrd_size); 836549e984eSSergio Lopez } 837549e984eSSergio Lopez 838549e984eSSergio Lopez option_rom[nb_option_roms].bootindex = 0; 839549e984eSSergio Lopez option_rom[nb_option_roms].name = "pvh.bin"; 840549e984eSSergio Lopez nb_option_roms++; 841549e984eSSergio Lopez 842549e984eSSergio Lopez return; 843549e984eSSergio Lopez } 844549e984eSSergio Lopez protocol = 0; 845549e984eSSergio Lopez } 846549e984eSSergio Lopez 847549e984eSSergio Lopez if (protocol < 0x200 || !(header[0x211] & 0x01)) { 848549e984eSSergio Lopez /* Low kernel */ 849549e984eSSergio Lopez real_addr = 0x90000; 850549e984eSSergio Lopez cmdline_addr = 0x9a000 - cmdline_size; 851549e984eSSergio Lopez prot_addr = 0x10000; 852549e984eSSergio Lopez } else if (protocol < 0x202) { 853549e984eSSergio Lopez /* High but ancient kernel */ 854549e984eSSergio Lopez real_addr = 0x90000; 855549e984eSSergio Lopez cmdline_addr = 0x9a000 - cmdline_size; 856549e984eSSergio Lopez prot_addr = 0x100000; 857549e984eSSergio Lopez } else { 858549e984eSSergio Lopez /* High and recent kernel */ 859549e984eSSergio Lopez real_addr = 0x10000; 860549e984eSSergio Lopez cmdline_addr = 0x20000; 861549e984eSSergio Lopez prot_addr = 0x100000; 862549e984eSSergio Lopez } 863549e984eSSergio Lopez 864549e984eSSergio Lopez /* highest address for loading the initrd */ 865549e984eSSergio Lopez if (protocol >= 0x20c && 866549e984eSSergio Lopez lduw_p(header + 0x236) & XLF_CAN_BE_LOADED_ABOVE_4G) { 867549e984eSSergio Lopez /* 868549e984eSSergio Lopez * Linux has supported initrd up to 4 GB for a very long time (2007, 869549e984eSSergio Lopez * long before XLF_CAN_BE_LOADED_ABOVE_4G which was added in 2013), 870549e984eSSergio Lopez * though it only sets initrd_max to 2 GB to "work around bootloader 871549e984eSSergio Lopez * bugs". Luckily, QEMU firmware(which does something like bootloader) 872549e984eSSergio Lopez * has supported this. 873549e984eSSergio Lopez * 874549e984eSSergio Lopez * It's believed that if XLF_CAN_BE_LOADED_ABOVE_4G is set, initrd can 875549e984eSSergio Lopez * be loaded into any address. 876549e984eSSergio Lopez * 877549e984eSSergio Lopez * In addition, initrd_max is uint32_t simply because QEMU doesn't 878549e984eSSergio Lopez * support the 64-bit boot protocol (specifically the ext_ramdisk_image 879549e984eSSergio Lopez * field). 880549e984eSSergio Lopez * 881549e984eSSergio Lopez * Therefore here just limit initrd_max to UINT32_MAX simply as well. 882549e984eSSergio Lopez */ 883549e984eSSergio Lopez initrd_max = UINT32_MAX; 884549e984eSSergio Lopez } else if (protocol >= 0x203) { 885549e984eSSergio Lopez initrd_max = ldl_p(header + 0x22c); 886549e984eSSergio Lopez } else { 887549e984eSSergio Lopez initrd_max = 0x37ffffff; 888549e984eSSergio Lopez } 889549e984eSSergio Lopez 890703a548aSSergio Lopez if (initrd_max >= x86ms->below_4g_mem_size - acpi_data_size) { 891703a548aSSergio Lopez initrd_max = x86ms->below_4g_mem_size - acpi_data_size - 1; 892549e984eSSergio Lopez } 893549e984eSSergio Lopez 894549e984eSSergio Lopez fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_ADDR, cmdline_addr); 895549e984eSSergio Lopez fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_SIZE, strlen(kernel_cmdline) + 1); 896549e984eSSergio Lopez fw_cfg_add_string(fw_cfg, FW_CFG_CMDLINE_DATA, kernel_cmdline); 897549e984eSSergio Lopez 898549e984eSSergio Lopez if (protocol >= 0x202) { 899549e984eSSergio Lopez stl_p(header + 0x228, cmdline_addr); 900549e984eSSergio Lopez } else { 901549e984eSSergio Lopez stw_p(header + 0x20, 0xA33F); 902549e984eSSergio Lopez stw_p(header + 0x22, cmdline_addr - real_addr); 903549e984eSSergio Lopez } 904549e984eSSergio Lopez 905549e984eSSergio Lopez /* handle vga= parameter */ 906549e984eSSergio Lopez vmode = strstr(kernel_cmdline, "vga="); 907549e984eSSergio Lopez if (vmode) { 908549e984eSSergio Lopez unsigned int video_mode; 909a88c40f0SPeter Wu const char *end; 910549e984eSSergio Lopez int ret; 911549e984eSSergio Lopez /* skip "vga=" */ 912549e984eSSergio Lopez vmode += 4; 913549e984eSSergio Lopez if (!strncmp(vmode, "normal", 6)) { 914549e984eSSergio Lopez video_mode = 0xffff; 915549e984eSSergio Lopez } else if (!strncmp(vmode, "ext", 3)) { 916549e984eSSergio Lopez video_mode = 0xfffe; 917549e984eSSergio Lopez } else if (!strncmp(vmode, "ask", 3)) { 918549e984eSSergio Lopez video_mode = 0xfffd; 919549e984eSSergio Lopez } else { 920a88c40f0SPeter Wu ret = qemu_strtoui(vmode, &end, 0, &video_mode); 921a88c40f0SPeter Wu if (ret != 0 || (*end && *end != ' ')) { 922a88c40f0SPeter Wu fprintf(stderr, "qemu: invalid 'vga=' kernel parameter.\n"); 923549e984eSSergio Lopez exit(1); 924549e984eSSergio Lopez } 925549e984eSSergio Lopez } 926549e984eSSergio Lopez stw_p(header + 0x1fa, video_mode); 927549e984eSSergio Lopez } 928549e984eSSergio Lopez 929549e984eSSergio Lopez /* loader type */ 930549e984eSSergio Lopez /* 931549e984eSSergio Lopez * High nybble = B reserved for QEMU; low nybble is revision number. 932549e984eSSergio Lopez * If this code is substantially changed, you may want to consider 933549e984eSSergio Lopez * incrementing the revision. 934549e984eSSergio Lopez */ 935549e984eSSergio Lopez if (protocol >= 0x200) { 936549e984eSSergio Lopez header[0x210] = 0xB0; 937549e984eSSergio Lopez } 938549e984eSSergio Lopez /* heap */ 939549e984eSSergio Lopez if (protocol >= 0x201) { 940549e984eSSergio Lopez header[0x211] |= 0x80; /* CAN_USE_HEAP */ 941549e984eSSergio Lopez stw_p(header + 0x224, cmdline_addr - real_addr - 0x200); 942549e984eSSergio Lopez } 943549e984eSSergio Lopez 944549e984eSSergio Lopez /* load initrd */ 945549e984eSSergio Lopez if (initrd_filename) { 946549e984eSSergio Lopez GMappedFile *mapped_file; 947549e984eSSergio Lopez gsize initrd_size; 948549e984eSSergio Lopez gchar *initrd_data; 949549e984eSSergio Lopez GError *gerr = NULL; 950549e984eSSergio Lopez 951549e984eSSergio Lopez if (protocol < 0x200) { 952549e984eSSergio Lopez fprintf(stderr, "qemu: linux kernel too old to load a ram disk\n"); 953549e984eSSergio Lopez exit(1); 954549e984eSSergio Lopez } 955549e984eSSergio Lopez 956549e984eSSergio Lopez mapped_file = g_mapped_file_new(initrd_filename, false, &gerr); 957549e984eSSergio Lopez if (!mapped_file) { 958549e984eSSergio Lopez fprintf(stderr, "qemu: error reading initrd %s: %s\n", 959549e984eSSergio Lopez initrd_filename, gerr->message); 960549e984eSSergio Lopez exit(1); 961549e984eSSergio Lopez } 962f0bb276bSPaolo Bonzini x86ms->initrd_mapped_file = mapped_file; 963549e984eSSergio Lopez 964549e984eSSergio Lopez initrd_data = g_mapped_file_get_contents(mapped_file); 965549e984eSSergio Lopez initrd_size = g_mapped_file_get_length(mapped_file); 966549e984eSSergio Lopez if (initrd_size >= initrd_max) { 967549e984eSSergio Lopez fprintf(stderr, "qemu: initrd is too large, cannot support." 968549e984eSSergio Lopez "(max: %"PRIu32", need %"PRId64")\n", 969549e984eSSergio Lopez initrd_max, (uint64_t)initrd_size); 970549e984eSSergio Lopez exit(1); 971549e984eSSergio Lopez } 972549e984eSSergio Lopez 973549e984eSSergio Lopez initrd_addr = (initrd_max - initrd_size) & ~4095; 974549e984eSSergio Lopez 975549e984eSSergio Lopez fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_addr); 976549e984eSSergio Lopez fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size); 977549e984eSSergio Lopez fw_cfg_add_bytes(fw_cfg, FW_CFG_INITRD_DATA, initrd_data, initrd_size); 978549e984eSSergio Lopez 979549e984eSSergio Lopez stl_p(header + 0x218, initrd_addr); 980549e984eSSergio Lopez stl_p(header + 0x21c, initrd_size); 981549e984eSSergio Lopez } 982549e984eSSergio Lopez 983549e984eSSergio Lopez /* load kernel and setup */ 984549e984eSSergio Lopez setup_size = header[0x1f1]; 985549e984eSSergio Lopez if (setup_size == 0) { 986549e984eSSergio Lopez setup_size = 4; 987549e984eSSergio Lopez } 988549e984eSSergio Lopez setup_size = (setup_size + 1) * 512; 989549e984eSSergio Lopez if (setup_size > kernel_size) { 990549e984eSSergio Lopez fprintf(stderr, "qemu: invalid kernel header\n"); 991549e984eSSergio Lopez exit(1); 992549e984eSSergio Lopez } 993549e984eSSergio Lopez kernel_size -= setup_size; 994549e984eSSergio Lopez 995549e984eSSergio Lopez setup = g_malloc(setup_size); 996549e984eSSergio Lopez kernel = g_malloc(kernel_size); 997549e984eSSergio Lopez fseek(f, 0, SEEK_SET); 998549e984eSSergio Lopez if (fread(setup, 1, setup_size, f) != setup_size) { 999549e984eSSergio Lopez fprintf(stderr, "fread() failed\n"); 1000549e984eSSergio Lopez exit(1); 1001549e984eSSergio Lopez } 1002549e984eSSergio Lopez if (fread(kernel, 1, kernel_size, f) != kernel_size) { 1003549e984eSSergio Lopez fprintf(stderr, "fread() failed\n"); 1004549e984eSSergio Lopez exit(1); 1005549e984eSSergio Lopez } 1006549e984eSSergio Lopez fclose(f); 1007549e984eSSergio Lopez 1008549e984eSSergio Lopez /* append dtb to kernel */ 1009549e984eSSergio Lopez if (dtb_filename) { 1010549e984eSSergio Lopez if (protocol < 0x209) { 1011549e984eSSergio Lopez fprintf(stderr, "qemu: Linux kernel too old to load a dtb\n"); 1012549e984eSSergio Lopez exit(1); 1013549e984eSSergio Lopez } 1014549e984eSSergio Lopez 1015549e984eSSergio Lopez dtb_size = get_image_size(dtb_filename); 1016549e984eSSergio Lopez if (dtb_size <= 0) { 1017549e984eSSergio Lopez fprintf(stderr, "qemu: error reading dtb %s: %s\n", 1018549e984eSSergio Lopez dtb_filename, strerror(errno)); 1019549e984eSSergio Lopez exit(1); 1020549e984eSSergio Lopez } 1021549e984eSSergio Lopez 1022549e984eSSergio Lopez setup_data_offset = QEMU_ALIGN_UP(kernel_size, 16); 1023549e984eSSergio Lopez kernel_size = setup_data_offset + sizeof(struct setup_data) + dtb_size; 1024549e984eSSergio Lopez kernel = g_realloc(kernel, kernel_size); 1025549e984eSSergio Lopez 1026549e984eSSergio Lopez stq_p(header + 0x250, prot_addr + setup_data_offset); 1027549e984eSSergio Lopez 1028549e984eSSergio Lopez setup_data = (struct setup_data *)(kernel + setup_data_offset); 1029549e984eSSergio Lopez setup_data->next = 0; 1030549e984eSSergio Lopez setup_data->type = cpu_to_le32(SETUP_DTB); 1031549e984eSSergio Lopez setup_data->len = cpu_to_le32(dtb_size); 1032549e984eSSergio Lopez 1033549e984eSSergio Lopez load_image_size(dtb_filename, setup_data->data, dtb_size); 1034549e984eSSergio Lopez } 1035549e984eSSergio Lopez 1036549e984eSSergio Lopez memcpy(setup, header, MIN(sizeof(header), setup_size)); 1037549e984eSSergio Lopez 1038549e984eSSergio Lopez fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, prot_addr); 1039549e984eSSergio Lopez fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size); 1040549e984eSSergio Lopez fw_cfg_add_bytes(fw_cfg, FW_CFG_KERNEL_DATA, kernel, kernel_size); 1041549e984eSSergio Lopez 1042549e984eSSergio Lopez fw_cfg_add_i32(fw_cfg, FW_CFG_SETUP_ADDR, real_addr); 1043549e984eSSergio Lopez fw_cfg_add_i32(fw_cfg, FW_CFG_SETUP_SIZE, setup_size); 1044549e984eSSergio Lopez fw_cfg_add_bytes(fw_cfg, FW_CFG_SETUP_DATA, setup, setup_size); 1045549e984eSSergio Lopez 1046549e984eSSergio Lopez option_rom[nb_option_roms].bootindex = 0; 1047549e984eSSergio Lopez option_rom[nb_option_roms].name = "linuxboot.bin"; 1048703a548aSSergio Lopez if (linuxboot_dma_enabled && fw_cfg_dma_enabled(fw_cfg)) { 1049549e984eSSergio Lopez option_rom[nb_option_roms].name = "linuxboot_dma.bin"; 1050549e984eSSergio Lopez } 1051549e984eSSergio Lopez nb_option_roms++; 1052549e984eSSergio Lopez } 1053549e984eSSergio Lopez 1054549e984eSSergio Lopez void x86_bios_rom_init(MemoryRegion *rom_memory, bool isapc_ram_fw) 1055549e984eSSergio Lopez { 1056549e984eSSergio Lopez char *filename; 1057549e984eSSergio Lopez MemoryRegion *bios, *isa_bios; 1058549e984eSSergio Lopez int bios_size, isa_bios_size; 1059549e984eSSergio Lopez int ret; 1060549e984eSSergio Lopez 1061549e984eSSergio Lopez /* BIOS load */ 1062549e984eSSergio Lopez if (bios_name == NULL) { 1063549e984eSSergio Lopez bios_name = BIOS_FILENAME; 1064549e984eSSergio Lopez } 1065549e984eSSergio Lopez filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name); 1066549e984eSSergio Lopez if (filename) { 1067549e984eSSergio Lopez bios_size = get_image_size(filename); 1068549e984eSSergio Lopez } else { 1069549e984eSSergio Lopez bios_size = -1; 1070549e984eSSergio Lopez } 1071549e984eSSergio Lopez if (bios_size <= 0 || 1072549e984eSSergio Lopez (bios_size % 65536) != 0) { 1073549e984eSSergio Lopez goto bios_error; 1074549e984eSSergio Lopez } 1075549e984eSSergio Lopez bios = g_malloc(sizeof(*bios)); 1076549e984eSSergio Lopez memory_region_init_ram(bios, NULL, "pc.bios", bios_size, &error_fatal); 1077549e984eSSergio Lopez if (!isapc_ram_fw) { 1078549e984eSSergio Lopez memory_region_set_readonly(bios, true); 1079549e984eSSergio Lopez } 1080549e984eSSergio Lopez ret = rom_add_file_fixed(bios_name, (uint32_t)(-bios_size), -1); 1081549e984eSSergio Lopez if (ret != 0) { 1082549e984eSSergio Lopez bios_error: 1083549e984eSSergio Lopez fprintf(stderr, "qemu: could not load PC BIOS '%s'\n", bios_name); 1084549e984eSSergio Lopez exit(1); 1085549e984eSSergio Lopez } 1086549e984eSSergio Lopez g_free(filename); 1087549e984eSSergio Lopez 1088549e984eSSergio Lopez /* map the last 128KB of the BIOS in ISA space */ 1089549e984eSSergio Lopez isa_bios_size = MIN(bios_size, 128 * KiB); 1090549e984eSSergio Lopez isa_bios = g_malloc(sizeof(*isa_bios)); 1091549e984eSSergio Lopez memory_region_init_alias(isa_bios, NULL, "isa-bios", bios, 1092549e984eSSergio Lopez bios_size - isa_bios_size, isa_bios_size); 1093549e984eSSergio Lopez memory_region_add_subregion_overlap(rom_memory, 1094549e984eSSergio Lopez 0x100000 - isa_bios_size, 1095549e984eSSergio Lopez isa_bios, 1096549e984eSSergio Lopez 1); 1097549e984eSSergio Lopez if (!isapc_ram_fw) { 1098549e984eSSergio Lopez memory_region_set_readonly(isa_bios, true); 1099549e984eSSergio Lopez } 1100549e984eSSergio Lopez 1101549e984eSSergio Lopez /* map all the bios at the top of memory */ 1102549e984eSSergio Lopez memory_region_add_subregion(rom_memory, 1103549e984eSSergio Lopez (uint32_t)(-bios_size), 1104549e984eSSergio Lopez bios); 1105549e984eSSergio Lopez } 1106f0bb276bSPaolo Bonzini 11079927a632SGerd Hoffmann bool x86_machine_is_smm_enabled(const X86MachineState *x86ms) 1108ed9e923cSPaolo Bonzini { 1109ed9e923cSPaolo Bonzini bool smm_available = false; 1110ed9e923cSPaolo Bonzini 1111ed9e923cSPaolo Bonzini if (x86ms->smm == ON_OFF_AUTO_OFF) { 1112ed9e923cSPaolo Bonzini return false; 1113ed9e923cSPaolo Bonzini } 1114ed9e923cSPaolo Bonzini 1115ed9e923cSPaolo Bonzini if (tcg_enabled() || qtest_enabled()) { 1116ed9e923cSPaolo Bonzini smm_available = true; 1117ed9e923cSPaolo Bonzini } else if (kvm_enabled()) { 1118ed9e923cSPaolo Bonzini smm_available = kvm_has_smm(); 1119ed9e923cSPaolo Bonzini } 1120ed9e923cSPaolo Bonzini 1121ed9e923cSPaolo Bonzini if (smm_available) { 1122ed9e923cSPaolo Bonzini return true; 1123ed9e923cSPaolo Bonzini } 1124ed9e923cSPaolo Bonzini 1125ed9e923cSPaolo Bonzini if (x86ms->smm == ON_OFF_AUTO_ON) { 1126ed9e923cSPaolo Bonzini error_report("System Management Mode not supported by this hypervisor."); 1127ed9e923cSPaolo Bonzini exit(1); 1128ed9e923cSPaolo Bonzini } 1129ed9e923cSPaolo Bonzini return false; 1130ed9e923cSPaolo Bonzini } 1131ed9e923cSPaolo Bonzini 1132ed9e923cSPaolo Bonzini static void x86_machine_get_smm(Object *obj, Visitor *v, const char *name, 1133ed9e923cSPaolo Bonzini void *opaque, Error **errp) 1134ed9e923cSPaolo Bonzini { 1135ed9e923cSPaolo Bonzini X86MachineState *x86ms = X86_MACHINE(obj); 1136ed9e923cSPaolo Bonzini OnOffAuto smm = x86ms->smm; 1137ed9e923cSPaolo Bonzini 1138ed9e923cSPaolo Bonzini visit_type_OnOffAuto(v, name, &smm, errp); 1139ed9e923cSPaolo Bonzini } 1140ed9e923cSPaolo Bonzini 1141ed9e923cSPaolo Bonzini static void x86_machine_set_smm(Object *obj, Visitor *v, const char *name, 1142ed9e923cSPaolo Bonzini void *opaque, Error **errp) 1143ed9e923cSPaolo Bonzini { 1144ed9e923cSPaolo Bonzini X86MachineState *x86ms = X86_MACHINE(obj); 1145ed9e923cSPaolo Bonzini 1146ed9e923cSPaolo Bonzini visit_type_OnOffAuto(v, name, &x86ms->smm, errp); 1147ed9e923cSPaolo Bonzini } 1148ed9e923cSPaolo Bonzini 11499927a632SGerd Hoffmann bool x86_machine_is_acpi_enabled(const X86MachineState *x86ms) 115017e89077SGerd Hoffmann { 115117e89077SGerd Hoffmann if (x86ms->acpi == ON_OFF_AUTO_OFF) { 115217e89077SGerd Hoffmann return false; 115317e89077SGerd Hoffmann } 115417e89077SGerd Hoffmann return true; 115517e89077SGerd Hoffmann } 115617e89077SGerd Hoffmann 115717e89077SGerd Hoffmann static void x86_machine_get_acpi(Object *obj, Visitor *v, const char *name, 115817e89077SGerd Hoffmann void *opaque, Error **errp) 115917e89077SGerd Hoffmann { 116017e89077SGerd Hoffmann X86MachineState *x86ms = X86_MACHINE(obj); 116117e89077SGerd Hoffmann OnOffAuto acpi = x86ms->acpi; 116217e89077SGerd Hoffmann 116317e89077SGerd Hoffmann visit_type_OnOffAuto(v, name, &acpi, errp); 116417e89077SGerd Hoffmann } 116517e89077SGerd Hoffmann 116617e89077SGerd Hoffmann static void x86_machine_set_acpi(Object *obj, Visitor *v, const char *name, 116717e89077SGerd Hoffmann void *opaque, Error **errp) 116817e89077SGerd Hoffmann { 116917e89077SGerd Hoffmann X86MachineState *x86ms = X86_MACHINE(obj); 117017e89077SGerd Hoffmann 117117e89077SGerd Hoffmann visit_type_OnOffAuto(v, name, &x86ms->acpi, errp); 117217e89077SGerd Hoffmann } 117317e89077SGerd Hoffmann 1174f0bb276bSPaolo Bonzini static void x86_machine_initfn(Object *obj) 1175f0bb276bSPaolo Bonzini { 1176f0bb276bSPaolo Bonzini X86MachineState *x86ms = X86_MACHINE(obj); 1177f0bb276bSPaolo Bonzini 1178ed9e923cSPaolo Bonzini x86ms->smm = ON_OFF_AUTO_AUTO; 117917e89077SGerd Hoffmann x86ms->acpi = ON_OFF_AUTO_AUTO; 1180f0bb276bSPaolo Bonzini x86ms->smp_dies = 1; 1181f0bb276bSPaolo Bonzini } 1182f0bb276bSPaolo Bonzini 1183f0bb276bSPaolo Bonzini static void x86_machine_class_init(ObjectClass *oc, void *data) 1184f0bb276bSPaolo Bonzini { 1185f0bb276bSPaolo Bonzini MachineClass *mc = MACHINE_CLASS(oc); 1186f0bb276bSPaolo Bonzini X86MachineClass *x86mc = X86_MACHINE_CLASS(oc); 1187f0bb276bSPaolo Bonzini NMIClass *nc = NMI_CLASS(oc); 1188f0bb276bSPaolo Bonzini 1189f0bb276bSPaolo Bonzini mc->cpu_index_to_instance_props = x86_cpu_index_to_props; 1190f0bb276bSPaolo Bonzini mc->get_default_cpu_node_id = x86_get_default_cpu_node_id; 1191f0bb276bSPaolo Bonzini mc->possible_cpu_arch_ids = x86_possible_cpu_arch_ids; 1192f0bb276bSPaolo Bonzini x86mc->compat_apic_id_mode = false; 11932f34ebf2SLiam Merwick x86mc->save_tsc_khz = true; 1194f0bb276bSPaolo Bonzini nc->nmi_monitor_handler = x86_nmi; 1195f0bb276bSPaolo Bonzini 1196ed9e923cSPaolo Bonzini object_class_property_add(oc, X86_MACHINE_SMM, "OnOffAuto", 1197ed9e923cSPaolo Bonzini x86_machine_get_smm, x86_machine_set_smm, 1198d2623129SMarkus Armbruster NULL, NULL); 1199ed9e923cSPaolo Bonzini object_class_property_set_description(oc, X86_MACHINE_SMM, 12007eecec7dSMarkus Armbruster "Enable SMM"); 120117e89077SGerd Hoffmann 120217e89077SGerd Hoffmann object_class_property_add(oc, X86_MACHINE_ACPI, "OnOffAuto", 120317e89077SGerd Hoffmann x86_machine_get_acpi, x86_machine_set_acpi, 1204d2623129SMarkus Armbruster NULL, NULL); 120517e89077SGerd Hoffmann object_class_property_set_description(oc, X86_MACHINE_ACPI, 12067eecec7dSMarkus Armbruster "Enable ACPI"); 1207f0bb276bSPaolo Bonzini } 1208f0bb276bSPaolo Bonzini 1209f0bb276bSPaolo Bonzini static const TypeInfo x86_machine_info = { 1210f0bb276bSPaolo Bonzini .name = TYPE_X86_MACHINE, 1211f0bb276bSPaolo Bonzini .parent = TYPE_MACHINE, 1212f0bb276bSPaolo Bonzini .abstract = true, 1213f0bb276bSPaolo Bonzini .instance_size = sizeof(X86MachineState), 1214f0bb276bSPaolo Bonzini .instance_init = x86_machine_initfn, 1215f0bb276bSPaolo Bonzini .class_size = sizeof(X86MachineClass), 1216f0bb276bSPaolo Bonzini .class_init = x86_machine_class_init, 1217f0bb276bSPaolo Bonzini .interfaces = (InterfaceInfo[]) { 1218f0bb276bSPaolo Bonzini { TYPE_NMI }, 1219f0bb276bSPaolo Bonzini { } 1220f0bb276bSPaolo Bonzini }, 1221f0bb276bSPaolo Bonzini }; 1222f0bb276bSPaolo Bonzini 1223f0bb276bSPaolo Bonzini static void x86_machine_register_types(void) 1224f0bb276bSPaolo Bonzini { 1225f0bb276bSPaolo Bonzini type_register_static(&x86_machine_info); 1226f0bb276bSPaolo Bonzini } 1227f0bb276bSPaolo Bonzini 1228f0bb276bSPaolo Bonzini type_init(x86_machine_register_types) 1229