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misc: Stop using deprecated functions from vm-memory crate

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See: https://github.com/rust-vmm/vm-memory/pull/247

Signed-off-by: Bo Chen <chen.bo@intel.com>
This commit is contained in:
Bo Chen
2023-11-08 15:01:18 -08:00
committed by Rob Bradford
parent 4d7a4c598a
commit d4892f41b3
8 changed files with 74 additions and 49 deletions
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20
block/src/lib.rs
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@@ -143,10 +143,14 @@ pub enum ExecuteError {
Flush(io::Error),
#[error("Failed to read: {0}")]
Read(GuestMemoryError),
#[error("Failed to read_exact: {0}")]
ReadExact(io::Error),
#[error("Failed to seek: {0}")]
Seek(io::Error),
#[error("Failed to write: {0}")]
Write(GuestMemoryError),
#[error("Failed to write_all: {0}")]
WriteAll(io::Error),
#[error("Unsupported request: {0}")]
Unsupported(u32),
#[error("Failed to submit io uring: {0}")]
@@ -169,8 +173,10 @@ impl ExecuteError {
ExecuteError::BadRequest(_) => VIRTIO_BLK_S_IOERR,
ExecuteError::Flush(_) => VIRTIO_BLK_S_IOERR,
ExecuteError::Read(_) => VIRTIO_BLK_S_IOERR,
ExecuteError::ReadExact(_) => VIRTIO_BLK_S_IOERR,
ExecuteError::Seek(_) => VIRTIO_BLK_S_IOERR,
ExecuteError::Write(_) => VIRTIO_BLK_S_IOERR,
ExecuteError::WriteAll(_) => VIRTIO_BLK_S_IOERR,
ExecuteError::Unsupported(_) => VIRTIO_BLK_S_UNSUPP,
ExecuteError::SubmitIoUring(_) => VIRTIO_BLK_S_IOERR,
ExecuteError::GetHostAddress(_) => VIRTIO_BLK_S_IOERR,
@@ -351,13 +357,21 @@ impl Request {
match self.request_type {
RequestType::In => {
mem.read_exact_from(*data_addr, disk, *data_len as usize)
.map_err(ExecuteError::Read)?;
let mut buf = vec![0u8; *data_len as usize];
disk.read_exact(&mut buf).map_err(ExecuteError::ReadExact)?;
mem.read_exact_volatile_from(
*data_addr,
&mut buf.as_slice(),
*data_len as usize,
)
.map_err(ExecuteError::Read)?;
len += data_len;
}
RequestType::Out => {
mem.write_all_to(*data_addr, disk, *data_len as usize)
let mut buf: Vec<u8> = Vec::new();
mem.write_all_volatile_to(*data_addr, &mut buf, *data_len as usize)
.map_err(ExecuteError::Write)?;
disk.write_all(&buf).map_err(ExecuteError::WriteAll)?;
if !self.writeback {
disk.flush().map_err(ExecuteError::Flush)?;
}