This allows us to change the memory map that is being used by the
devices via an atomic swap (by replacing the map with another one). The
ArcSwap provides the mechanism for atomically swapping from to another
whilst still giving good read performace. It is inside an Arc so that we
can use a single ArcSwap for all users.
Not covered by this change is replacing the GuestMemoryMmap itself.
This change also removes some vertical whitespace from use blocks in the
files that this commit also changed. Vertical whitespace was being used
inconsistently and broke rustfmt's behaviour of ordering the imports as
it would only do it within the block.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
This brings more modularity to the code, which will be helpful when we
will later test the CLI and OpenAPI generate the same VmConfig output.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
Since the Snapshotable placeholder and Migratable traits are provided as
well, the DeviceManager object and all its objects are now Migratable.
All Migratable devices are tracked as Arc<Mutex<dyn Migratable>>
references.
Keeping track of all migratable devices allows for implementing the
Migratable trait for the DeviceManager structure, making the whole
device model potentially migratable.
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
The signal handling for vCPU signals has changed in the latest release
so switch to the new API.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Since the kvm crates now depend on vmm-sys-util, the bump must be
atomic.
The kvm-bindings and ioctls 0.2.0 and 0.4.0 crates come with a few API
changes, one of them being the use of a kvm_ioctls specific error type.
Porting our code to that type makes for a fairly large diff stat.
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
The new micro_http package provides a built-in HttpServer wrapper for
running a more robust HTTP server based on the package HTTP API.
Switching to this implementation allows us to, among other things,
handle HTTP requests that are larger than 1024 bytes.
Fixes: #423
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Update micro_http create to allow set content type.
Suggested-by: Samuel Ortiz <sameo@linux.intel.com>
Tested-by: Jose Carlos Venegas Munoz <jose.carlos.venegas.munoz@intel.com>
Signed-off-by: Jose Carlos Venegas Munoz <jose.carlos.venegas.munoz@intel.com>
Remove ACPI table creation from arch crate to the vmm crate simplifying
arch::configure_system()
GuestAddress(0) is used to mean no RSDP table rather than adding
complexity with a conditional argument or an Option type as it will
evaluate to a zero value which would be the default anyway.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
We need to rely on the latest kvm-ioctls version to benefit from the
recent addition of unregister_ioevent(), allowing us to detach a
previously registered eventfd to a PIO or MMIO guest address.
Because of this update, we had to modify the current constraint we had
on the vmm-sys-util crate, using ">= 0.1.1" instead of being strictly
tied to "0.2.0".
Once the dependency conflict resolved, this commit took care of fixing
build issues caused by recent modification of kvm-ioctls relying on
EventFd reference instead of RawFd.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
With this implementation of the trait ExternalDmaMapping, we now have
the tool to provide to the virtual IOMMU to trigger the map/unmap on
behalf of the guest.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
As of commit 2b94334a, Firecracker includes all the changes we need.
We can now switch to using it instead of carrying a copy.
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
We use the serde crate to serialize and deserialize the VmVConfig
structure. This structure will be passed from the HTTP API caller as a
JSON payload and we need to deserialize it into a VmConfig.
For a convenient use of the HTTP API, we also provide Default traits
implementations for some of the VmConfig fields (vCPUs, memory, etc...).
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
The Cloud Hyper HTTP server runs a synchronous, multi-threaded
loop that receives HTTP requests and tries to call the corresponding
endpoint handlers for the requests URIs.
An endpoint handler will parse the HTTP request and potentially
translate it into and IPC request. The handler holds an notifier and an
mspc Sender for respectively notifying and sending the IPC payload to
the VMM API server. The handler then waits for an API server response
and translate it back into an HTTP response.
The HTTP server is responsible for sending the reponse back to the
caller.
The HTTP server uses a static routes hash table that maps URIs to
endpoint handlers.
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Based off of crosvm revision b5237bbcf074eb30cf368a138c0835081e747d71
add a CMOS device. This environments that can't use KVM clock to get the
current time (e.g. Windows and EFI.)
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Add (non-default) support for using MMIO for virtio devices. This can be
tested by:
cargo build --no-default-features --features "mmio"
All necessary options will be included injected into the kernel
commandline.
Fixes: #243
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
The command "cargo build --no-default-features" does not recursively
disable the default features across the workspace. Instead add an acpi
feature at the top-level, making it default, and then make that feature
conditional on all the crate acpi features.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Put the ACPI support behind a feature and ensure that the code compiles
without that feature by adding an extra build to Travis.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Add a revision 2 RSDP table only supporting an XSDT along with support
for creating generic SDT based tables.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
One of the features of the virtio console device is its size can be
configured and updated. Our first iteration of the console device
implementation is lack of this feature. As a result, it had a
default fixed size which could not be changed. This commit implements
the console config feature and lets us change the console size from
the vmm side.
During the activation of the device, vmm reads the current terminal
size, sets the console configuration accordinly, and lets the driver
know about this configuration by sending an interrupt. Later, if
someone changes the terminal size, the vmm detects the corresponding
event, updates the configuration, and sends interrupt as before. As a
result, the console device driver, in the guest, updates the console
size.
Signed-off-by: A K M Fazla Mehrab <fazla.mehrab.akm@intel.com>
Update all dependencies with "cargo upgrade" with the exception of
vmm-sys-utils which needs some extra porting work.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
With the VFIO crate, we can now support directly assigned PCI devices
into cloud-hypervisor guests.
We support assigning multiple host devices, through the --device command
line parameter. This parameter takes the host device sysfs path.
Fixes: #60
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
VMM may load different format kernel image to start guest, we currently
only have elf loader support, so add bzimage loader support in case
that VMM would like to load bzimage.
Signed-off-by: Cathy Zhang <cathy.zhang@intel.com>
In order to have access to the newly added signal_msi() function
from the kvm-ioctls crate, this commit updates the version of the
kvm-ioctls to the latest one.
Because set_user_memory_region() has been swtiched to "unsafe", we
also need to handle this small change in our cloud-hypervisor code
directly.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
Since the top-level Cargo.toml specifies a vmm-sys-util revision
but not the sub crates, Cargo.lock points at 2 different crates.
cargo vendor copies both of them into the vendor directory but
forces the build to use the one coming from the top level driven
requirement.
Although this is a waste of space, this is a cargo vendor limitation
that we have to live with for now.
Also, because the dependency onto linux-loader had to be updated,
we had to specify a newly introduced feature called "elf".
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
Use a catchall case for all reasons that we do not handle, and
move the vCPU run switch into its own function.
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This patch expand the device registration to add a new virtio-net
device in case the user provide the appropriate flag --net from the
command line.
If the flag is provided, the code will parse the TAP interface name
and the expected MAC address from the command line. The VM will be
connected to the provided TAP interface, and it will communicate the
MAC address to the virtio-net driver.
If the flag is not provided, the VM will not register any virtio-net
device, therefore it will not have any connectivity with the host.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
After the virtio-blk device support has been introduced in the
previous commit, the vmm need to rely on this new device to boot
from disk images instead of initrd built into the kernel.
In order to achieve the proper support of virtio-blk, this commit
had to handle a few things:
- Register an ioevent fd for each virtqueue. This important to be
notified from the virtio driver that something has been written
on the queue.
- Fix the retrieval of 64bits BAR address. This is needed to provide
the right address which need to be registered as the notification
address from the virtio driver.
- Fix the write_bar and read_bar functions. They were both assuming
to be provided with an address, from which they were trying to
find the associated offset. But the reality is that the offset is
directly provided by the Bus layer.
- Register a new virtio-blk device as a virtio-pci device from the
vm.rs code. When the VM is started, it expects a block device to
be created, using this block device as the VM rootfs.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
After starting all vCPUs, we loop for STDIN input.
We need a more scalable eventfd control loop, obviously.
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Based on the Firecracker devices crate from commit 9cdb5b2.
It is a trimmed down version compared to the Firecracker one, to remove
a bunch of pulled dependencies (logger, metrics, rate limiter, etc...).
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
