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vmm: config: Move max vCPUs > boot vCPUs check to validate()

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This allows the validation of this requirement for both command line
booted VMs and those booted via the API.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
This commit is contained in:
Rob Bradford 2020-04-07 15:53:41 +01:00
parent 12edb24678
commit eeb7e2529d
1 changed files with 13 additions and 10 deletions
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23
vmm/src/config.rs
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@ -26,8 +26,6 @@ pub const DEFAULT_QUEUE_SIZE_VUBLK: u16 = 128;
/// Errors associated with VM configuration parameters.
#[derive(Debug)]
pub enum Error {
/// Max is less than boot
ParseCpusMaxLowerThanBoot,
/// Both socket and path specified
ParseDiskSocketAndPath,
/// Filesystem tag is missing
@ -84,6 +82,8 @@ pub enum ValidationError {
KernelMissing,
/// Missing file value for console
ConsoleFileMissing,
/// Max is less than boot
CpusMaxLowerThanBoot,
}
type ValidationResult<T> = std::result::Result<T, ValidationError>;
@ -95,6 +95,7 @@ impl fmt::Display for ValidationError {
DoubleTtyMode => write!(f, "Console mode tty specified for both serial and console"),
KernelMissing => write!(f, "No kernel specified"),
ConsoleFileMissing => write!(f, "Path missing when using file console mode"),
CpusMaxLowerThanBoot => write!(f, "Max CPUs greater than boot CPUs"),
}
}
}
@ -108,9 +109,7 @@ impl fmt::Display for Error {
write!(f, "Error parsing --console: invalid console mode given")
}
ParseCpus(o) => write!(f, "Error parsing --cpus: {}", o),
ParseCpusMaxLowerThanBoot => {
write!(f, "Error parsing --cpus: max CPUs greater than boot CPUs")
}
ParseDevice(o) => write!(f, "Error parsing --device: {}", o),
ParseDevicePathMissing => write!(f, "Error parsing --device: path missing"),
ParseDiskSocketAndPath => write!(
@ -415,10 +414,6 @@ impl CpusConfig {
.map_err(Error::ParseCpus)?
.unwrap_or(boot_vcpus);
if max_vcpus < boot_vcpus {
return Err(Error::ParseCpusMaxLowerThanBoot);
}
Ok(CpusConfig {
boot_vcpus,
max_vcpus,
@ -1208,6 +1203,10 @@ impl VmConfig {
return Err(ValidationError::ConsoleFileMissing);
}
if self.cpus.max_vcpus < self.cpus.boot_vcpus {
return Err(ValidationError::CpusMaxLowerThanBoot);
}
Ok(())
}
@ -1382,7 +1381,6 @@ mod tests {
max_vcpus: 2,
}
);
assert!(CpusConfig::parse("boot=2,max=1").is_err());
Ok(())
}
@ -1869,6 +1867,11 @@ mod tests {
invalid_config.serial.file = None;
assert!(invalid_config.validate().is_err());
let mut invalid_config = valid_config.clone();
invalid_config.cpus.max_vcpus = 16;
invalid_config.cpus.boot_vcpus = 32;
assert!(invalid_config.validate().is_err());
Ok(())
}
}