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tests: Add a "huge" memory test

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Now that we have expanded our address space we should add automated
testing to try VMs that use a large amount of RAM.

As the hypervisor does an anonymous mmap() for the backing of memory and
during a typical test boot the guest will not touch it all it should be
possible to test large RAM VMs even if that exceeds the RAM of the host
machine.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
This commit is contained in:
Rob Bradford 2019-09-19 10:46:53 +01:00 committed by Sebastien Boeuf
parent b488d4859b
commit 5f0337c21d
1 changed files with 41 additions and 0 deletions
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41
src/main.rs
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@ -948,6 +948,47 @@ mod tests {
});
}
#[cfg_attr(not(feature = "mmio"), test)]
fn test_huge_memory() {
test_block!(tb, "", {
let mut clear = ClearDiskConfig::new();
let guest = Guest::new(&mut clear);
let mut child = Command::new("target/debug/cloud-hypervisor")
.args(&["--cpus", "1"])
.args(&["--memory", "size=128G"])
.args(&["--kernel", guest.fw_path.as_str()])
.args(&[
"--disk",
guest
.disk_config
.disk(DiskType::OperatingSystem)
.unwrap()
.as_str(),
guest
.disk_config
.disk(DiskType::CloudInit)
.unwrap()
.as_str(),
])
.args(&["--net", guest.default_net_string().as_str()])
.spawn()
.unwrap();
thread::sleep(std::time::Duration::new(20, 0));
aver!(
tb,
guest.get_total_memory().unwrap_or_default() > 128_000_000
);
guest.ssh_command("sudo shutdown -h now")?;
thread::sleep(std::time::Duration::new(10, 0));
let _ = child.kill();
let _ = child.wait();
Ok(())
});
}
#[cfg_attr(not(feature = "mmio"), test)]
fn test_pci_msi() {
test_block!(tb, "", {