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pci: add safety comments

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Signed-off-by: Wei Liu <liuwe@microsoft.com>
This commit is contained in:
Wei Liu 2022-11-16 22:20:42 +00:00 committed by Liu Wei
parent d1b9d9d7f7
commit c5bd8cabc4
2 changed files with 4 additions and 0 deletions
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2
pci/src/vfio.rs
View File

@ -1422,6 +1422,7 @@ impl VfioPciDevice {
)?;
for area in sparse_areas.iter() {
// SAFETY: FFI call with correct arguments
let host_addr = unsafe {
libc::mmap(
null_mut(),
@ -1488,6 +1489,7 @@ impl VfioPciDevice {
error!("Could not remove the userspace memory region: {}", e);
}
// SAFETY: FFI call with correct arguments
let ret = unsafe {
libc::munmap(
user_memory_region.host_addr as *mut libc::c_void,

2
pci/src/vfio_user.rs
View File

@ -181,6 +181,7 @@ impl VfioUserPciDevice {
};
for s in mmaps.iter() {
// SAFETY: FFI call with correct arguments
let host_addr = unsafe {
libc::mmap(
null_mut(),
@ -247,6 +248,7 @@ impl VfioUserPciDevice {
}
// Remove mmaps
// SAFETY: FFI call with correct arguments
let ret = unsafe {
libc::munmap(
user_memory_region.host_addr as *mut libc::c_void,