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vmm: config: Require a socket when using vhost-user

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With self-spawning being removed both parameters are now required.

Fixes: #1925

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
This commit is contained in:
Rob Bradford
2020-11-06 09:44:17 +00:00
committed by Samuel Ortiz
parent ec84abc5c7
commit 0005d11e32
2 changed files with 21 additions and 9 deletions
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22
vmm/src/config.rs
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@@ -95,6 +95,8 @@ pub enum ValidationError {
DiskSocketAndPath,
/// Using vhost user requires shared memory
VhostUserRequiresSharedMemory,
/// No socket provided for vhost_use
VhostUserMissingSocket,
/// Trying to use IOMMU without PCI
IommuUnsupported,
/// Trying to use VFIO without PCI
@@ -121,6 +123,7 @@ impl fmt::Display for ValidationError {
VhostUserRequiresSharedMemory => {
write!(f, "Using vhost-user requires using shared memory")
}
VhostUserMissingSocket => write!(f, "No socket provided when using vhost-user"),
IommuUnsupported => write!(f, "Using an IOMMU without PCI support is unsupported"),
VfioUnsupported => write!(f, "Using VFIO without PCI support is unsupported"),
CpuTopologyZeroPart => write!(f, "No part of the CPU topology can be zero"),
@@ -1453,6 +1456,9 @@ impl VmConfig {
if disk.vhost_user && !self.memory.shared {
return Err(ValidationError::VhostUserRequiresSharedMemory);
}
if disk.vhost_user && disk.vhost_socket.is_none() {
return Err(ValidationError::VhostUserMissingSocket);
}
}
}
@@ -1788,9 +1794,9 @@ mod tests {
}
);
assert_eq!(
DiskConfig::parse("path=/path/to_file,vhost_user=true")?,
DiskConfig::parse("vhost_user=true,socket=/tmp/sock")?,
DiskConfig {
path: Some(PathBuf::from("/path/to_file")),
vhost_socket: Some(String::from("/tmp/sock")),
vhost_user: true,
..Default::default()
}
@@ -2264,9 +2270,18 @@ mod tests {
}]);
assert!(invalid_config.validate().is_err());
let mut invalid_config = valid_config.clone();
invalid_config.disks = Some(vec![DiskConfig {
vhost_user: true,
vhost_socket: Some("/path/to/sock".to_owned()),
..Default::default()
}]);
assert!(invalid_config.validate().is_err());
let mut still_valid_config = valid_config.clone();
still_valid_config.disks = Some(vec![DiskConfig {
vhost_user: true,
vhost_socket: Some("/path/to/sock".to_owned()),
..Default::default()
}]);
still_valid_config.memory.shared = true;
@@ -2282,6 +2297,7 @@ mod tests {
let mut still_valid_config = valid_config.clone();
still_valid_config.net = Some(vec![NetConfig {
vhost_user: true,
vhost_socket: Some("/path/to/sock".to_owned()),
..Default::default()
}]);
still_valid_config.memory.shared = true;
@@ -2293,7 +2309,7 @@ mod tests {
}]);
assert!(invalid_config.validate().is_err());
let mut still_valid_config = valid_config.clone();
let mut still_valid_config = valid_config;
invalid_config.fs = Some(vec![FsConfig {
..Default::default()
}]);