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vmm: cpu: Deny resizing if CpuManager is not dynamic

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Signed-off-by: Rob Bradford <robert.bradford@intel.com>
This commit is contained in:
Rob Bradford 2022-03-17 12:33:04 +00:00
parent e5cb13588b
commit 188078467d
1 changed files with 7 additions and 0 deletions
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7
vmm/src/cpu.rs
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@ -125,6 +125,9 @@ pub enum Error {
#[cfg(all(target_arch = "x86_64", feature = "gdb"))] #[cfg(all(target_arch = "x86_64", feature = "gdb"))]
/// Failed to translate guest virtual address. /// Failed to translate guest virtual address.
TranslateVirtualAddress(hypervisor::HypervisorCpuError), TranslateVirtualAddress(hypervisor::HypervisorCpuError),
/// CPU hotplug/unplug not supported
ResizingNotSupported,
} }
pub type Result<T> = result::Result<T, Error>; pub type Result<T> = result::Result<T, Error>;
@ -1093,6 +1096,10 @@ impl CpuManager {
} }
pub fn resize(&mut self, desired_vcpus: u8) -> Result<bool> { pub fn resize(&mut self, desired_vcpus: u8) -> Result<bool> {
if !self.dynamic {
return Err(Error::ResizingNotSupported);
}
match desired_vcpus.cmp(&self.present_vcpus()) { match desired_vcpus.cmp(&self.present_vcpus()) {
cmp::Ordering::Greater => { cmp::Ordering::Greater => {
self.create_vcpus(desired_vcpus, None)?; self.create_vcpus(desired_vcpus, None)?;