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https://chromium.googlesource.com/crosvm/crosvm
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11322f007d
Use the off64_t versions of libc file functions. There is no Rust libc crate equivalent of the C _FILE_OFFSET_BITS and related defines, so we have to use the Linux-specific *64 variants explicitly. This extends the size of file offsets to 64 bits instead of 32 on platforms with 32-bit userspace. (It also fixes the recently introduced check for non-LFS functions in ChromeOS - see b/201531268 for details.) BUG=b:201531268 TEST=emerge-kevin crosvm TEST=start Crostini on kevin Change-Id: Ife42917c8896d4fa1ccd78051c2a0b7dd565b2b3 Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/3979975 Reviewed-by: Dennis Kempin <denniskempin@google.com> Reviewed-by: Keiichi Watanabe <keiichiw@chromium.org> Commit-Queue: Daniel Verkamp <dverkamp@chromium.org>
40 lines
1.1 KiB
Rust
40 lines
1.1 KiB
Rust
// Copyright 2017 The ChromiumOS Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#![cfg(not(any(target_os = "windows", target_arch = "arm")))]
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use kvm_sys::*;
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use libc::c_char;
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use libc::ioctl;
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use libc::open64;
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use libc::O_RDWR;
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const KVM_PATH: &str = "/dev/kvm\0";
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#[test]
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fn get_version() {
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let sys_fd = unsafe { open64(KVM_PATH.as_ptr() as *const c_char, O_RDWR) };
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assert!(sys_fd >= 0);
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let ret = unsafe { ioctl(sys_fd, KVM_GET_API_VERSION(), 0) };
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assert_eq!(ret as u32, KVM_API_VERSION);
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}
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#[test]
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fn create_vm_fd() {
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let sys_fd = unsafe { open64(KVM_PATH.as_ptr() as *const c_char, O_RDWR) };
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assert!(sys_fd >= 0);
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let vm_fd = unsafe { ioctl(sys_fd, KVM_CREATE_VM(), 0) };
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assert!(vm_fd >= 0);
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}
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#[test]
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fn check_vm_extension() {
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let sys_fd = unsafe { open64(KVM_PATH.as_ptr() as *const c_char, O_RDWR) };
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assert!(sys_fd >= 0);
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let has_user_memory = unsafe { ioctl(sys_fd, KVM_CHECK_EXTENSION(), KVM_CAP_USER_MEMORY) };
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assert_eq!(has_user_memory, 1);
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}
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