1ae1fae34SPekka Enberg #include "kvm/kvm.h" 2ae1fae34SPekka Enberg 313a7760fSPekka Enberg #include "kvm/early_printk.h" 4f3150089SPekka Enberg #include "kvm/util.h" 57fb218bdSPekka Enberg 6ae1fae34SPekka Enberg #include <inttypes.h> 70290405dSPekka Enberg #include <signal.h> 8ae1fae34SPekka Enberg #include <stdint.h> 9ae1fae34SPekka Enberg #include <stdlib.h> 10f3150089SPekka Enberg #include <string.h> 11ae1fae34SPekka Enberg #include <stdio.h> 12ae1fae34SPekka Enberg 13ae1fae34SPekka Enberg static void usage(char *argv[]) 14ae1fae34SPekka Enberg { 1564f06a2bSPekka Enberg fprintf(stderr, " usage: %s [--single-step] [--kernel=]<kernel-image>\n", 165645c7a9SCyrill Gorcunov argv[0]); 17ae1fae34SPekka Enberg exit(1); 18ae1fae34SPekka Enberg } 19ae1fae34SPekka Enberg 200290405dSPekka Enberg static struct kvm *kvm; 210290405dSPekka Enberg 220290405dSPekka Enberg static void handle_sigquit(int sig) 230290405dSPekka Enberg { 240290405dSPekka Enberg kvm__show_registers(kvm); 250290405dSPekka Enberg kvm__show_code(kvm); 260290405dSPekka Enberg kvm__show_page_tables(kvm); 270290405dSPekka Enberg 280290405dSPekka Enberg kvm__delete(kvm); 290290405dSPekka Enberg 300290405dSPekka Enberg exit(1); 310290405dSPekka Enberg } 320290405dSPekka Enberg 33ae1fae34SPekka Enberg int main(int argc, char *argv[]) 34ae1fae34SPekka Enberg { 355645c7a9SCyrill Gorcunov const char *kernel_filename = NULL; 366d1f350dSCyrill Gorcunov const char *kernel_cmdline = NULL; 3764f06a2bSPekka Enberg bool single_step = false; 382525eb1fSPekka Enberg char real_cmdline[128]; 395645c7a9SCyrill Gorcunov int i; 40ae1fae34SPekka Enberg 410290405dSPekka Enberg signal(SIGQUIT, handle_sigquit); 420290405dSPekka Enberg 435645c7a9SCyrill Gorcunov for (i = 1; i < argc; i++) { 445645c7a9SCyrill Gorcunov if (!strncmp("--kernel=", argv[i], 9)) { 455645c7a9SCyrill Gorcunov kernel_filename = &argv[i][9]; 465645c7a9SCyrill Gorcunov continue; 476d1f350dSCyrill Gorcunov } else if (!strncmp("--params=", argv[i], 9)) { 486d1f350dSCyrill Gorcunov kernel_cmdline = &argv[i][9]; 496d1f350dSCyrill Gorcunov continue; 5064f06a2bSPekka Enberg } else if (!strncmp("--single-step", argv[i], 13)) { 5164f06a2bSPekka Enberg single_step = true; 5264f06a2bSPekka Enberg continue; 535645c7a9SCyrill Gorcunov } else { 545645c7a9SCyrill Gorcunov /* any unspecified arg is kernel image */ 555645c7a9SCyrill Gorcunov if (argv[i][0] != '-') 565645c7a9SCyrill Gorcunov kernel_filename = argv[i]; 575645c7a9SCyrill Gorcunov else 585645c7a9SCyrill Gorcunov warning("Unknown option: %s", argv[i]); 595645c7a9SCyrill Gorcunov } 605645c7a9SCyrill Gorcunov } 615645c7a9SCyrill Gorcunov 625645c7a9SCyrill Gorcunov /* at least we should have kernel image passed */ 635645c7a9SCyrill Gorcunov if (!kernel_filename) 64ae1fae34SPekka Enberg usage(argv); 65ae1fae34SPekka Enberg 66ae1fae34SPekka Enberg kvm = kvm__init(); 67ae1fae34SPekka Enberg 68a1fe6bc5SPekka Enberg kvm__setup_cpuid(kvm); 69a1fe6bc5SPekka Enberg 70f28c0a02SCyrill Gorcunov strcpy(real_cmdline, "notsc nolapic nosmp noacpi earlyprintk=serial,keep"); 71f28c0a02SCyrill Gorcunov if (kernel_cmdline) { 72f28c0a02SCyrill Gorcunov strncat(real_cmdline, kernel_cmdline, sizeof(real_cmdline)); 73f28c0a02SCyrill Gorcunov real_cmdline[sizeof(real_cmdline)-1] = '\0'; 74f28c0a02SCyrill Gorcunov } 752525eb1fSPekka Enberg 762525eb1fSPekka Enberg if (!kvm__load_kernel(kvm, kernel_filename, real_cmdline)) 777fb218bdSPekka Enberg die("unable to load kernel %s", kernel_filename); 78ae1fae34SPekka Enberg 797fb218bdSPekka Enberg kvm__reset_vcpu(kvm); 80ae1fae34SPekka Enberg 8164f06a2bSPekka Enberg if (single_step) 82ae1fae34SPekka Enberg kvm__enable_singlestep(kvm); 83ae1fae34SPekka Enberg 8413a7760fSPekka Enberg early_printk__init(); 8513a7760fSPekka Enberg 86ae1fae34SPekka Enberg for (;;) { 87ae1fae34SPekka Enberg kvm__run(kvm); 88ae1fae34SPekka Enberg 89ae1fae34SPekka Enberg switch (kvm->kvm_run->exit_reason) { 90fe806d65SPekka Enberg case KVM_EXIT_DEBUG: 91fe806d65SPekka Enberg kvm__show_registers(kvm); 92fe806d65SPekka Enberg kvm__show_code(kvm); 93fe806d65SPekka Enberg break; 942049569dSPekka Enberg case KVM_EXIT_IO: { 952049569dSPekka Enberg bool ret; 962049569dSPekka Enberg 972049569dSPekka Enberg ret = kvm__emulate_io(kvm, 98ae1fae34SPekka Enberg kvm->kvm_run->io.port, 99ae1fae34SPekka Enberg (uint8_t *)kvm->kvm_run + kvm->kvm_run->io.data_offset, 100ae1fae34SPekka Enberg kvm->kvm_run->io.direction, 101ae1fae34SPekka Enberg kvm->kvm_run->io.size, 102ae1fae34SPekka Enberg kvm->kvm_run->io.count); 1032049569dSPekka Enberg 1042049569dSPekka Enberg if (!ret) 1052049569dSPekka Enberg goto exit_kvm; 106ae1fae34SPekka Enberg break; 1072049569dSPekka Enberg } 10829443dabSPekka Enberg case KVM_EXIT_MMIO: { 10929443dabSPekka Enberg bool ret; 11029443dabSPekka Enberg 11129443dabSPekka Enberg ret = kvm__emulate_mmio(kvm, 11229443dabSPekka Enberg kvm->kvm_run->mmio.phys_addr, 11329443dabSPekka Enberg kvm->kvm_run->mmio.data, 11429443dabSPekka Enberg kvm->kvm_run->mmio.len, 11529443dabSPekka Enberg kvm->kvm_run->mmio.is_write); 11629443dabSPekka Enberg 11729443dabSPekka Enberg if (!ret) 11829443dabSPekka Enberg goto exit_kvm; 11929443dabSPekka Enberg break; 12029443dabSPekka Enberg 12129443dabSPekka Enberg } 122ae1fae34SPekka Enberg default: 123ae1fae34SPekka Enberg goto exit_kvm; 124ae1fae34SPekka Enberg } 125ae1fae34SPekka Enberg } 126ae1fae34SPekka Enberg 127ae1fae34SPekka Enberg exit_kvm: 128ae1fae34SPekka Enberg fprintf(stderr, "KVM exit reason: %" PRIu32 " (\"%s\")\n", 129ae1fae34SPekka Enberg kvm->kvm_run->exit_reason, kvm_exit_reasons[kvm->kvm_run->exit_reason]); 130*b9c0a0bcSCyrill Gorcunov if (kvm->kvm_run->exit_reason == KVM_EXIT_UNKNOWN) 131*b9c0a0bcSCyrill Gorcunov fprintf(stderr, "KVM exit code: 0x%016llx\n", 132*b9c0a0bcSCyrill Gorcunov kvm->kvm_run->hw.hardware_exit_reason); 133ae1fae34SPekka Enberg 134ae1fae34SPekka Enberg kvm__show_registers(kvm); 135ae1fae34SPekka Enberg kvm__show_code(kvm); 136f01944c8SPekka Enberg kvm__show_page_tables(kvm); 137ae1fae34SPekka Enberg 1389ef4c68eSPekka Enberg kvm__delete(kvm); 1399ef4c68eSPekka Enberg 140ae1fae34SPekka Enberg return 0; 141ae1fae34SPekka Enberg } 142