Commit Graph

11 Commits

Author SHA1 Message Date
Sebastien Boeuf
de3e003e3e virtio-devices: Handle virtio queues interrupts from transport layer
Instead of relying on the virtio-queue crate to store the information
about the MSI-X vectors for each queue, we handle this directly from the
PCI transport layer.

This is the first step in getting closer to the upstream version of
virtio-queue so that we can eventually move fully to the upstream
version.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2022-01-25 12:01:12 +01:00
Sebastien Boeuf
0162d73ed8 virtio-queue: Update crate based on latest rust-vmm/vm-virtio
This crate contains up to date definition of the Queue, AvailIter,
DescriptorChain and Descriptor structures forked from the upstream
crate rust-vmm/vm-virtio 27b18af01ee2d9564626e084a758a2b496d2c618.

The following patches have been applied on top of this base in order to
make it work correctly with Cloud Hypervisor requirements:

- Add MSI vector field to the Queue

  In order to help with MSI/MSI-X support, it is convenient to store the
  value of the interrupt vector inside the Queue directly.

- Handle address translations

  For devices with access to data in memory being translated, we add to
  the Queue the ability to translate the address stored in the
  descriptor.
  It is very helpful as it performs the translation right after the
  untranslated address is read from memory, avoiding any errors from
  happening from the consumer's crate perspective. It also allows the
  consumer to reduce greatly the amount of duplicated code for applying
  the translation in many different places.

- Add helpers for Queue structure

  They are meant to help crate's consumers getting/setting information
  about the Queue.

These patches can be found on the 'ch' branch from the Cloud Hypervisor
fork: https://github.com/cloud-hypervisor/vm-virtio.git

This patch takes care of updating the Cloud Hypervisor code in
virtio-devices and vm-virtio to build correctly with the latest version
of virtio-queue.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2022-01-06 10:02:40 +00:00
Sebastien Boeuf
0249e8641a Move Cloud Hypervisor to virtio-queue crate
Relying on the vm-virtio/virtio-queue crate from rust-vmm which has been
copied inside the Cloud Hypervisor tree, the entire codebase is moved to
the new definition of a Queue and other related structures.

The reason for this move is to follow the upstream until we get some
agreement for the patches that we need on top of that to make it
properly work with Cloud Hypervisor.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-10-22 11:38:55 +02:00
Rob Bradford
687d646c60 virtio-devices, vmm: Shutdown VMM on virtio thread panic
Shutdown the VMM in the virtio (or VMM side of vhost-user) thread
panics.

See: #3031

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-09-08 09:40:36 +01:00
Bo Chen
2d2463ce04 fuzz: Move to the seccompiler crate
Signed-off-by: Bo Chen <chen.bo@intel.com>
2021-08-18 10:42:19 +02:00
Sebastien Boeuf
d278e9f39b fuzz: block: Test a RAW file instead QCOW
Instead of running the generic block fuzzer with QCOW, it's better to
use a RAW file since it's less complex and it will focus on virtqueues.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-08-11 08:55:54 -07:00
Bo Chen
169d6f6756 fuzz: Update the 'block' fuzz target with the rate limiter support
Signed-off-by: Bo Chen <chen.bo@intel.com>
2021-03-12 09:35:03 +01:00
Sebastien Boeuf
2824642e80 virtio-devices: Rename BlockIoUring to Block
Now that BlockIoUring is the only implementation of virtio-block,
handling both synchronous and asynchronous backends based on the
AsyncIo trait, we can rename it to Block.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-01-22 16:10:34 +00:00
Sebastien Boeuf
41cfdb50cd virtio-devices: Remove virtio-block synchronous implementation
Now that both synchronous and asynchronous backends rely on the
asynchronous version of virtio-block (namely BlockIoUring), we can
get rid of the synchronous version (namely Block).

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-01-22 16:10:34 +00:00
Bo Chen
dda1df0a58 fuzz: Fix the building errors with recent changes
This patch adds two required dependencies to fuzz/Cargo.toml, and fixes
the building error on the 'block' fuzzer.

Signed-off-by: Bo Chen <chen.bo@intel.com>
2020-10-01 11:16:35 +01:00
Rob Bradford
191f64028a fuzz: Add a fuzzer for virtio-devices::Block
This is based on the block fuzzer from crosvm and ported to Cloud
Hypervisor.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-07-20 20:22:47 +02:00