From bbd4840872f70e3342308c6965ab196ed2606af1 Mon Sep 17 00:00:00 2001 From: Dmitry Vyukov Date: Sun, 8 Jan 2017 17:20:32 +0100 Subject: sys: extend kvm support Add new pseudo syscall syz_kvm_setup_cpu that setups VCPU into interesting states for execution. KVM is too difficult to setup otherwise. Lots of improvements possible, but this is a starting point. --- executor/kvm_gen.cc | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 executor/kvm_gen.cc (limited to 'executor/kvm_gen.cc') diff --git a/executor/kvm_gen.cc b/executor/kvm_gen.cc new file mode 100644 index 000000000..5290bd2e7 --- /dev/null +++ b/executor/kvm_gen.cc @@ -0,0 +1,33 @@ +// Copyright 2017 syzkaller project authors. All rights reserved. +// Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file. + +// +build + +#include + +#define PRINT(x) \ + extern const unsigned char x[], x##_end[]; \ + print(#x, x, x##_end); + +void print(const char* name, const unsigned char* start, const unsigned char* end) +{ + printf("const char %s[] = \"", name); + for (const unsigned char* p = start; p < end; p++) + printf("\\x%02x", *p); + printf("\";\n"); +} + +int main() +{ + printf("// AUTOGENERATED FILE\n"); + PRINT(kvm_asm16_cpl3); + PRINT(kvm_asm32_paged); + PRINT(kvm_asm32_vm86); + PRINT(kvm_asm32_paged_vm86); + PRINT(kvm_asm64_vm86); + PRINT(kvm_asm64_enable_long); + PRINT(kvm_asm64_init_vm); + PRINT(kvm_asm64_vm_exit); + PRINT(kvm_asm64_cpl3); + return 0; +} -- cgit mrf-deployment