krun: remove limit for memory flag

Allow users to request an arbitary amount of RAM for the VM.

Signed-off-by: Sergio Lopez <[email protected]>

Author: slp

crates/krun/src/bin/krun.rs

@@ -103,7 +103,7 @@ fn main() -> Result<()> {
         }
         debug!(cpuset:?; "sched_setaffinity");
         sched_setaffinity(None, &cpuset).context("Failed to set CPU affinity")?;
-        // Configure the number of vCPUs and the amount of RAM (max 16384 MiB).
+        // Configure the number of vCPUs and the amount of RAM.
         //
         // SAFETY: Safe as no pointers involved.
         debug!(num_vcpus, ram_mib = u32::from(ram_mib); "krun_set_vm_config");

crates/krun/src/cli_options.rs

@@ -65,10 +65,6 @@ pub fn options() -> OptionParser<Options> {
     [default: 80% of total RAM]",
         )
         .argument("MEM")
-        .guard(
-            |&mem| mem <= MiB::from(16384),
-            "the maximum amount of RAM supported is 16384 MiB",
-        )
         .optional();
     let passt_socket = long("passt-socket")
         .help("Instead of starting passt, connect to passt socket at PATH")