kvm/kernel/x86/hack-module.awk

   1 BEGIN { split("INIT_WORK tsc_khz desc_struct ldttss_desc64 desc_ptr " \
   2               "hrtimer_add_expires_ns hrtimer_get_expires " \
   3               "hrtimer_get_expires_ns hrtimer_start_expires " \
   4               "on_each_cpu relay_open request_irq" , compat_apis); }
   5
   6 /^int kvm_init\(/ { anon_inodes = 1 }
   7
   8 /return 0;/ && anon_inodes {
   9     print "\tr = kvm_init_anon_inodes();";
  10     print "\tif (r) {";
  11     print "\t\t__free_page(bad_page);";
  12     print "\t\tgoto out;";
  13     print "\t}";
  14     print "\tpreempt_notifier_sys_init();";
  15     printf("\tprintk(\"loaded kvm module (%s)\\n\");\n", version);
  16     anon_inodes = 0
  17 }
  18
  19 /^void kvm_exit/ { anon_inodes_exit = 1 }
  20
  21 /\}/ && anon_inodes_exit {
  22     print "\tkvm_exit_anon_inodes();";
  23     print "\tpreempt_notifier_sys_exit();";
  24     anon_inodes_exit = 0
  25 }
  26
  27 /MODULE_AUTHOR/ {
  28     printf("MODULE_INFO(version, \"%s\");\n", version)
  29 }
  30
  31 /^static void __vmx_load_host_state/ {
  32     vmx_load_host_state = 1
  33 }
  34
  35 /vmcs_readl\(HOST_GS_BASE\)/ &&  vmx_load_host_state {
  36     $0 = "\t\twrmsrl(MSR_GS_BASE, gsbase);";
  37     vmx_load_host_state = 0
  38 }
  39
  40 /atomic_inc\(&kvm->mm->mm_count\);/ { $0 = "mmget(&kvm->mm->mm_count);" }
  41
  42 /^\t\.fault = / {
  43     fcn = gensub(/,/, "", "g", $3)
  44     $0 = "\t.VMA_OPS_FAULT(fault) = VMA_OPS_FAULT_FUNC(" fcn "),"
  45 }
  46
  47 /^static int (.*_stat_get|lost_records_get)/ {
  48     $3 = "__" $3
  49 }
  50
  51 /DEFINE_SIMPLE_ATTRIBUTE.*(_stat_get|lost_records_get)/ {
  52     name = gensub(/,/, "", "g", $2);
  53     print "MAKE_SIMPLE_ATTRIBUTE_GETTER(" name ")"
  54 }
  55
  56 { sub(/linux\/mm_types\.h/, "linux/mm.h") }
  57
  58 { sub(/\<__user\>/, " ") }
  59
  60 /^\t\.name = "kvm"/ { $0 = "\tset_kset_name(\"kvm\")," }
  61
  62 /#include <linux\/compiler.h>/ { $0 = "" }
  63 /#include <linux\/clocksource.h>/ { $0 = "" }
  64 /#include <linux\/types.h>/ { $0 = "" }
  65
  66 { sub(/\<hrtimer_init\>/, "hrtimer_init_p") }
  67 { sub(/\<hrtimer_start\>/, "hrtimer_start_p") }
  68 { sub(/\<hrtimer_cancel\>/, "hrtimer_cancel_p") }
  69
  70 /case KVM_CAP_SYNC_MMU/ { $0 = "#ifdef CONFIG_MMU_NOTIFIER\n" $0 "\n#endif" }
  71
  72 {
  73     for (i in compat_apis) {
  74         ident = compat_apis[i]
  75         sub("\\<" ident "\\>", "kvm_" ident)
  76     }
  77 }
  78
  79 /\kvm_.*_fops\.owner = module;/ { $0 = "IF_ANON_INODES_DOES_REFCOUNTS(" $0 ")" }
  80
  81 { print }
  82
  83 /unsigned long flags;/ &&  vmx_load_host_state {
  84     print "\tunsigned long gsbase;"
  85 }
  86
  87 /local_irq_save/ &&  vmx_load_host_state {
  88     print "\t\tgsbase = vmcs_readl(HOST_GS_BASE);"
  89 }
  90
  91 /\tkvm_init_debug/ {
  92     print "\thrtimer_kallsyms_resolve();"
  93 }
  94 /apic->timer.dev.function =/ {
  95     print "\thrtimer_data_pointer(&apic->timer.dev);"
  96 }
  97 /pt->timer.function =/ {
  98     print "\thrtimer_data_pointer(&pt->timer);"
  99 }