From 2a4c6c0dbed891610b6d10f663c797e9e80d1981 Mon Sep 17 00:00:00 2001 From: Alexander Potapenko Date: Wed, 17 Sep 2025 12:16:39 +0200 Subject: executor: sys/linux/: pkg/runtest: pkg/vminfo: add syz_kvm_assert_syzos_kvm_exit Implement a pseudo-syscall to check the value of kvm_run.exit_reason --- executor/common_kvm.h | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 executor/common_kvm.h (limited to 'executor/common_kvm.h') diff --git a/executor/common_kvm.h b/executor/common_kvm.h new file mode 100644 index 000000000..fecd00922 --- /dev/null +++ b/executor/common_kvm.h @@ -0,0 +1,25 @@ +// Copyright 2025 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. + +// This file is shared between executor and csource package. + +// Common KVM-related definitions. + +#if SYZ_EXECUTOR || __NR_syz_kvm_assert_syzos_kvm_exit +static long syz_kvm_assert_syzos_kvm_exit(volatile long a0, volatile long a1) +{ + struct kvm_run* run = (struct kvm_run*)a0; + uint64 expect = a1; + + if (!run) { + errno = EINVAL; + return -1; + } + + if (run->exit_reason != expect) { + errno = EDOM; + return -1; + } + return 0; +} +#endif -- cgit mrf-deployment