context: Add max vCPU check

Signed-off-by: Tyler Fanelli <[email protected]>
containers · Jul 17, 2024 · cfe1de2 · cfe1de2
1 parent 2d3599d
commit cfe1de2
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/src/context.rs b/src/context.rs
@@ -46,8 +46,12 @@ impl TryFrom<Args> for KrunContext {
         let id = u32::try_from(id).unwrap();
 
         // Set the krun VM's number of vCPUs and amount of memory allocated.
+        //
+        // libkrun has a max of 8 vCPUs allowed.
         if args.cpus == 0 {
             return Err(anyhow!("zero vcpus inputted (invalid)"));
+        } else if args.cpus > 8 {
+            return Err(anyhow!("too many vCPUs configured (max 8)"));
         }
 
         if args.memory == 0 {