Add a simple test to check that the data from the counters matches what
is expected and that the value of the counters increases after an
operation that will hit all counters.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
When a request is made to increase the number of vCPUs in the VM attempt
to reuse any previously removed (and hence inactive) vCPUs before
creating new ones.
This ensures that the APIC ID is not reused for a different KVM vCPU
(which is not allowed) and that the APIC IDs are also sequential.
The two key changes to support this are:
* Clearing the "kill" bit on the old vCPU state so that it does not
immediately exit upon thread recreation.
* Using the length of the vcpus vector (the number of allocated vcpus)
rather than the number of active vCPUs (.present_vcpus()) to determine
how many should be created.
This change also introduced some new info!() debugging on the vCPU
creation/removal path to aid further development in the future.
TEST=Expanded test_cpu_hotplug test.
Fixes: #1338
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Now that snapshot/restore is symmetrical, that is the VM must be paused
before it is snapshot and it must be resumed after it's been restored,
the integration test is updated accordingly.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
Add multiple integration tests with various different CPU topologies and
check that they work as expected.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Upon PCI hotplug, the VMM now returns some information about the device
name and the associated b/d/f. This patch extends the integration tests
so that we validate the response is the one that is expected.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
This revised version of the patch reuses the back-off strategy from
'ssh_command()' to deal with varying booting time.
Fixes: #1209
Signed-off-by: Bo Chen <chen.bo@intel.com>
This config option provided very little value and instead we now enable
this feature (which then lets the guest control the cache mode)
unconditionally.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Now that snapshot/restore support has been enabled for virtio-vsock, the
corresponding integration test is expanded with some validation that
virtio-vsock supports to be snapshot and restored.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
When compiled with pci feature, the integration test now validates that
/dev/vdb can be correctly read while being placed behing a virtual
IOMMU.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
The integration test validating that --serial off works correctly was
not properly written as it was using the FW, which by default would use
the kernel command line found in the EFI partition. Unfortunately, this
kernel command line was including "console=ttyS0", which causes the
kernel to try to write to the serial port, even if there's no serial
port being emulated.
The problem is, when no emulation of the serial port is provided, the
default value returned on 0x3f8 is 0, which makes the guest kernel think
that some data needs to be read.
The only way to avoid all this is by ensuring we can control the kernel
command line by removing any occurence of "console=ttyS0" from it.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
Extend the set of tests we have for virtio-net and vhost-user-net to
check for host MAC address setting.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
There's a simple way to trigger PCI BAR reprogramming for a given
device, by removing it and then hotplugging it back. The Linux kernel
will simply choose to place the BARs at different location than the ones
chosen by Cloud-Hypervisor. By doing so, and creating the snapshot after
this hotplug operation, we can manage to validate that the resource are
correctly restored for a given virtio-pci device.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
Now that snapshot/restore feature is stable for both virtio-mmio and
virtio-pci devices, we re-enable the integration test for validating
snapshot/restore does not get broken.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
Now that virtio-fs has unplug support try unplugging and readding the
virtio-fs device.
Fixes: #1050
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
The mmio integration test build currently doesn't use ACPI so piggyback
on that test variation.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Continue to try and track down the instability in the numbers generated
by this test by removing the (unused) network interface. It's possible
we are getting broadcast packets into the tap device and generating a
variable size of allocations.
See: #760
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Switch to using the recently added OptionParser in the code that parses
the network backend.
Whilst doing this also update the net-backend syntax to use "sock"
rather than socket.
Fixes: #1092
Partially fixes: #1091
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
To aid the debugging of why the test_memory_overhead sometimes fails
print a details of all the named regions that it uses in its
calculation.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
The current tests support giving a tap name but they only test with tap
interfaces that already exist.
Fixes: #871
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
We pass it to the integration and unit tests script through --libc.
Cargo tests are left unmodified.
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
If a size is specified use it (in particular this is required if the
destination is a directory) otherwise seek in the file to get the size
of the file.
Add a new check that the size is a multiple of 2MiB otherwise the kernel
will reject it.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
The new 'shared' and 'hugepages' controls aim to replace the 'file'
option in MemoryConfig. This patch also updated all related integration
tests to use the new controls (instead of providing explicit paths to
"/dev/shm" or "/dev/hugepages").
Fixes: #1011
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Signed-off-by: Bo Chen <chen.bo@intel.com>
The newly added integration test "test_snapshot_restore" is very
unstable, which causes our CI to fail on most pull requests, which is
not acceptable. That's why we ignore this test until we can fix the
stability issue.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
Now that we have multiple virtio devices supporting snapshot and restore
operations, we can add a new integration test to validate the migration
feature works as expected.
The important part is virtio-net as it is used to ssh into the VM to
verify the VM has been restored in the proper state.
This test only works for virtio-mmio for now. Further support for
testing virtio-pci will be added once the virtio-pci transport layer
will support migration.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
There is some duplication between regular and hotplug virtio-fs tests
that can be factorized by adding a simple hotplug flag to choose if each
test should run with or without hotplugging the device.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
One more time, we're extending the VFIO integration test to verify that
a VFIO device passed through a VM is still usable after some new memory
has been hotplugged.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
the integration test creates an initramfs image based on AlpineLinux mini root filesystem
with a simple /init script that just echoes a string to the console. The string
is passed via the kernel cmdline as an environment variable.
Signed-off-by: Damjan Georgievski <gdamjan@gmail.com>
All vhost-user-blk, vhost-user-net and virtio-fs integration tests are
extended with memory resizing. The point is to validate that we can
hotplug some memory and keep these backends to work as expected.
Just a note that because memory resizing is not supported by mmio, we
limit these extensions to all non-mmio use cases.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
The same Clear Linux kernel command line was repeated again and again in
the code. That's why this commit takes care of factorizing it, which
simplifies the code but also simplify maintenance whenever we'd need to
update the block UUID.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
The hypervisor-fw does not support virtio-blk through mmio transport
layer, therefore we can only run tests with mmio if these tests boot
directly to kernel.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
