QEMU 中关于CPU初始化的重要函数调用栈

QEMU的版本是v2.4.0.1之后的

Breakpoint 1, x86_cpu_realizefn (dev=0x55c743a33e70, errp=0x7ffef5886bb0) at /home/mce/workspace/git/qemu/qemu/target-i386/cpu.c:28212821    {(gdb) bt#0  x86_cpu_realizefn (dev=0x55c743a33e70, errp=0x7ffef5886bb0) at /home/mce/workspace/git/qemu/qemu/target-i386/cpu.c:2821#1  0x000055c74234e8e1 in device_set_realized (obj=0x55c743a33e70, value=true, errp=0x7ffef5886d68) at hw/core/qdev.c:1055#2  0x000055c7424bf771 in property_set_bool (obj=0x55c743a33e70, v=0x55c743a4eb30, opaque=0x55c743a24720, name=0x55c7425ac510 "realized", errp=0x7ffef5886d68) at qom/object.c:1708#3  0x000055c7424bdda8 in object_property_set (obj=0x55c743a33e70, v=0x55c743a4eb30, name=0x55c7425ac510 "realized", errp=0x7ffef5886d68) at qom/object.c:965#4  0x000055c7424c063f in object_property_set_qobject (obj=0x55c743a33e70, value=0x55c743a23bc0, name=0x55c7425ac510 "realized", errp=0x7ffef5886d68) at qom/qom-qobject.c:24#5  0x000055c7424be03e in object_property_set_bool (obj=0x55c743a33e70, value=true, name=0x55c7425ac510 "realized", errp=0x7ffef5886d68) at qom/object.c:1034#6  0x000055c742223ef3 in pc_new_cpu (cpu_model=0x55c7425ac5c5 "qemu64", apic_id=0, errp=0x7ffef5886dc0) at /home/mce/workspace/git/qemu/qemu/hw/i386/pc.c:1069#7  0x000055c7422241b0 in pc_cpus_init (cpu_model=0x55c7425ac5c5 "qemu64") at /home/mce/workspace/git/qemu/qemu/hw/i386/pc.c:1145#8  0x000055c742226c21 in pc_init1 (machine=0x55c7439d2ad0, host_type=0x55c7425ad217 "i440FX-pcihost", pci_type=0x55c7425ad210 "i440FX")    at /home/mce/workspace/git/qemu/qemu/hw/i386/pc_piix.c:142#9  0x000055c74222786f in pc_init_v2_5 (machine=0x55c7439d2ad0) at /home/mce/workspace/git/qemu/qemu/hw/i386/pc_piix.c:474#10 0x000055c7422c9bdf in main (argc=17, argv=0x7ffef5887348, envp=0x7ffef58873d8) at vl.c:4474(gdb) cContinuing.[Thread 0x7fdbdc40b700 (LWP 37527) exited][New Thread 0x7fdbdc40b700 (LWP 37538)][New Thread 0x7fdbd99ff700 (LWP 37540)]Breakpoint 2, kvm_cpu_synchronize_post_init (cpu=0x55c743a33e70) at /home/mce/workspace/git/qemu/qemu/kvm-all.c:18041804        run_on_cpu(cpu, do_kvm_cpu_synchronize_post_init, cpu);(gdb) bt#0  kvm_cpu_synchronize_post_init (cpu=0x55c743a33e70) at /home/mce/workspace/git/qemu/qemu/kvm-all.c:1804#1  0x000055c7421a6efd in cpu_synchronize_post_init (cpu=0x55c743a33e70) at /home/mce/workspace/git/qemu/qemu/include/sysemu/kvm.h:430#2  0x000055c7421a8132 in cpu_synchronize_all_post_init () at /home/mce/workspace/git/qemu/qemu/cpus.c:693#3  0x000055c7422c9bee in main (argc=17, argv=0x7ffef5887348, envp=0x7ffef58873d8) at vl.c:4480(gdb) cContinuing.[Thread 0x7fdbd99ff700 (LWP 37540) exited][Switching to Thread 0x7fdbdc40b700 (LWP 37538)]Breakpoint 3, do_kvm_cpu_synchronize_post_init (arg=0x55c743a33e70) at /home/mce/workspace/git/qemu/qemu/kvm-all.c:17961796        CPUState *cpu = arg;(gdb) bt#0  do_kvm_cpu_synchronize_post_init (arg=0x55c743a33e70) at /home/mce/workspace/git/qemu/qemu/kvm-all.c:1796#1  0x000055c7421a898d in flush_queued_work (cpu=0x55c743a33e70) at /home/mce/workspace/git/qemu/qemu/cpus.c:962#2  0x000055c7421a8a47 in qemu_wait_io_event_common (cpu=0x55c743a33e70) at /home/mce/workspace/git/qemu/qemu/cpus.c:981#3  0x000055c7421a8b32 in qemu_kvm_wait_io_event (cpu=0x55c743a33e70) at /home/mce/workspace/git/qemu/qemu/cpus.c:1010#4  0x000055c7421a8c7c in qemu_kvm_cpu_thread_fn (arg=0x55c743a33e70) at /home/mce/workspace/git/qemu/qemu/cpus.c:1050#5  0x00007fdbe57dadf5 in start_thread () from /lib64/libpthread.so.0#6  0x00007fdbe173c1ad in clone () from /lib64/libc.so.6(gdb) cContinuing.Breakpoint 4, kvm_put_msr_feature_control (cpu=0x55c743a33e70) at /home/mce/workspace/git/qemu/qemu/target-i386/kvm.c:13111311    {(gdb) cContinuing.[New Thread 0x7fdbd99ff700 (LWP 37549)]Breakpoint 4, kvm_put_msr_feature_control (cpu=0x55c743a33e70) at /home/mce/workspace/git/qemu/qemu/target-i386/kvm.c:13111311    {Missing separate debuginfos, use: debuginfo-install cyrus-sasl-md5-2.1.26-17.el7.x86_64 cyrus-sasl-plain-2.1.26-17.el7.x86_64 cyrus-sasl-scram-2.1.26-17.el7.x86_64 libdb-5.3.21-17.el7_0.1.x86_64(gdb) (gdb) bt#0  cpu_common_reset (cpu=0x5570a6b79e70) at qom/cpu.c:239#1  0x00005570a4ef53ea in x86_cpu_reset (s=0x5570a6b79e70) at /home/mce/workspace/git/qemu/qemu/target-i386/cpu.c:2613#2  0x00005570a51004e1 in cpu_reset (cpu=0x5570a6b79e70) at qom/cpu.c:233#3  0x00005570a4ef5ff5 in x86_cpu_realizefn (dev=0x5570a6b79e70, errp=0x7ffe22d45750) at /home/mce/workspace/git/qemu/qemu/target-i386/cpu.c:2919#4  0x00005570a4fd2921 in device_set_realized (obj=0x5570a6b79e70, value=true, errp=0x7ffe22d45908) at hw/core/qdev.c:1055#5  0x00005570a51437c9 in property_set_bool (obj=0x5570a6b79e70, v=0x5570a6b94b30, opaque=0x5570a6b6a720, name=0x5570a5230570 "realized", errp=0x7ffe22d45908) at qom/object.c:1708#6  0x00005570a5141e00 in object_property_set (obj=0x5570a6b79e70, v=0x5570a6b94b30, name=0x5570a5230570 "realized", errp=0x7ffe22d45908) at qom/object.c:965#7  0x00005570a5144697 in object_property_set_qobject (obj=0x5570a6b79e70, value=0x5570a6b69bc0, name=0x5570a5230570 "realized", errp=0x7ffe22d45908) at qom/qom-qobject.c:24#8  0x00005570a5142096 in object_property_set_bool (obj=0x5570a6b79e70, value=true, name=0x5570a5230570 "realized", errp=0x7ffe22d45908) at qom/object.c:1034#9  0x00005570a4ea7ef3 in pc_new_cpu (cpu_model=0x5570a5230625 "qemu64", apic_id=0, errp=0x7ffe22d45960) at /home/mce/workspace/git/qemu/qemu/hw/i386/pc.c:1069#10 0x00005570a4ea81b0 in pc_cpus_init (cpu_model=0x5570a5230625 "qemu64") at /home/mce/workspace/git/qemu/qemu/hw/i386/pc.c:1145#11 0x00005570a4eaac21 in pc_init1 (machine=0x5570a6b18ad0, host_type=0x5570a5231277 "i440FX-pcihost", pci_type=0x5570a5231270 "i440FX")    at /home/mce/workspace/git/qemu/qemu/hw/i386/pc_piix.c:142#12 0x00005570a4eab86f in pc_init_v2_5 (machine=0x5570a6b18ad0) at /home/mce/workspace/git/qemu/qemu/hw/i386/pc_piix.c:474#13 0x00005570a4f4dc1f in main (argc=17, argv=0x7ffe22d45ee8, envp=0x7ffe22d45f78) at vl.c:4474x86_64(gdb) bt#0  x86_cpu_reset (s=0x55c470acfe70) at /home/mce/workspace/git/qemu/qemu/target-i386/cpu.c:2608#1  0x000055c46f811471 in cpu_reset (cpu=0x55c470acfe70) at qom/cpu.c:232#2  0x000055c46f606797 in x86_cpu_machine_reset_cb (opaque=0x55c470acfe70) at /home/mce/workspace/git/qemu/qemu/target-i386/cpu.c:2717#3  0x000055c46f656ae1 in qemu_devices_reset () at vl.c:1698#4  0x000055c46f5bb695 in pc_machine_reset () at /home/mce/workspace/git/qemu/qemu/hw/i386/pc.c:1927#5  0x000055c46f656b66 in  (report=false) at vl.c:1709#6  0x000055c46f65ee4f in main (argc=17, argv=0x7fff5ea92208, envp=0x7fff5ea92298) at vl.c:4584(gdb)