Commit Graph

172 Commits

Author SHA1 Message Date
dependabot-preview[bot]
36360c7630 build(deps): bump libc from 0.2.82 to 0.2.83
Bumps [libc](https://github.com/rust-lang/libc) from 0.2.82 to 0.2.83.
- [Release notes](https://github.com/rust-lang/libc/releases)
- [Commits](https://github.com/rust-lang/libc/compare/0.2.82...0.2.83)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2021-01-28 06:30:03 +00:00
dependabot-preview[bot]
192d69d601 build(deps): bump log from 0.4.13 to 0.4.14
Bumps [log](https://github.com/rust-lang/log) from 0.4.13 to 0.4.14.
- [Release notes](https://github.com/rust-lang/log/releases)
- [Changelog](https://github.com/rust-lang/log/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rust-lang/log/compare/0.4.13...0.4.14)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2021-01-27 12:48:52 +00:00
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
Sebastien Boeuf
12e20effd7 block_util: Port synchronous QCOW file to AsyncIo trait
Based on the synchronous QCOW file implementation present in the qcow
crate, we created a new qcow_sync module in block_util that ports this
synchronous implementation to the AsyncIo trait.

The point is to reuse virtio-blk asynchronous implementation for both
synchronous and asynchronous backends.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-01-22 16:10:34 +00:00
Sebastien Boeuf
9fc86a91e2 block_util: Port synchronous RAW file to AsyncIo trait
Based on the synchronous RAW file implementation present in the qcow
crate, we created a new raw_sync module in block_util that ports this
synchronous implementation to the AsyncIo trait.

The point is to reuse virtio-blk asynchronous implementation for both
synchronous and asynchronous backends.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-01-22 16:10:34 +00:00
Sebastien Boeuf
da8ce25abf virtio-devices: Use asynchronous traits for virtio-blk io_uring
Based on the new DiskFile and AsyncIo traits, the implementation of
asynchronous block support does not have to be tied to io_uring anymore.
Instead, the only thing the virtio-blk implementation knows is that it
is using an asynchronous implementation of the underlying disk file.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-01-22 16:10:34 +00:00
Rob Bradford
c90f77e399 virtio-devices: Enforce a minimum number of queues
Even though the driver can provide fewer queues than those advertised
for some device types their is a minimum number that is required for
operation.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-01-20 18:54:36 +01:00
Rob Bradford
a105089702 virtio-devices: Support driver programming fewer queues
It is permissable for the driver to program fewer queues than offered by
the device. Filter the queues so that only the ready ones are included
and check that they have valid addresses configured.

Fixes: #2136

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-01-20 18:54:36 +01:00
Rob Bradford
c366efc19e virtio-devices: block, block_io_uring: Don't assume max queue count
Don't assume that the number of queues provided match the number of
queues offered. The virtio spec allows the driver to program fewer
queues.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-01-20 18:54:36 +01:00
Rob Bradford
23f9ec50fb virtio-devices: Simplify virtio device reset
Rather than having to give and return the ioeventfd used for a device
clone them each time. This will make it simpler when we start handling
the driver enabling fewer queues than advertised by the device.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-01-18 15:05:54 +00:00
Rob Bradford
22649c4a87 virtio-devices: Upon reset reap/join the device threads
We have killed the device thread by writing to the exit EventFd but we
should wait for them to quit to ensure consistency.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-01-14 17:25:14 +01:00
Rob Bradford
23afe89089 virtio-devices: Derive thread names from device ids
In order to make the thread naming more useful derive their name from
the device id (which can be supplied by the user) and a device specific
suffix that has details of the individual queue (or queue pair.)

e.g.

rob@artemis:~$ pstree -p -c -l -t `pidof cloud-hypervisor`
cloud-hyperviso(27501)─┬─{_console}(27525)
                       ├─{_disk0_q0}(27529)
                       ├─{_disk0_q1}(27532)
                       ├─{_net1_ctrl}(27533)
                       ├─{_net1_qp0}(27534)
                       ├─{_net1_qp1}(27535)
                       ├─{_rng}(27526)
                       ├─{http-server}(27504)
                       ├─{seccomp_signal_}(27502)
                       ├─{signal_handler}(27523)
                       ├─{vcpu0}(27520)
                       ├─{vcpu1}(27522)
                       └─{vmm}(27503)

Fixes: #2077

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-01-13 16:56:44 +01:00
dependabot-preview[bot]
d83c9a74f4 build(deps): bump tempfile from 3.1.0 to 3.2.0
Bumps [tempfile](https://github.com/Stebalien/tempfile) from 3.1.0 to 3.2.0.
- [Release notes](https://github.com/Stebalien/tempfile/releases)
- [Changelog](https://github.com/Stebalien/tempfile/blob/master/NEWS)
- [Commits](https://github.com/Stebalien/tempfile/commits)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2021-01-12 08:21:47 +00:00
dependabot-preview[bot]
d26866e018 build(deps): bump libc from 0.2.81 to 0.2.82
Bumps [libc](https://github.com/rust-lang/libc) from 0.2.81 to 0.2.82.
- [Release notes](https://github.com/rust-lang/libc/releases)
- [Commits](https://github.com/rust-lang/libc/compare/0.2.81...0.2.82)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2021-01-12 07:06:21 +00:00
dependabot-preview[bot]
ab456affb3 build(deps): bump log from 0.4.11 to 0.4.13
Bumps [log](https://github.com/rust-lang/log) from 0.4.11 to 0.4.13.
- [Release notes](https://github.com/rust-lang/log/releases)
- [Changelog](https://github.com/rust-lang/log/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rust-lang/log/compare/0.4.11...0.4.13)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2021-01-11 12:49:34 +00:00
Rob Bradford
bdfe6a69ef virtio-devices: iommu: Update to latest version of IOMMU spec
This is order to support the latest patches from
https://jpbrucker.net/git/linux/commit/?h=virtio-iommu/devel&id=ddc3e6ce3f534af827a9c8f91e12a7082de8ec61

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-01-11 12:56:05 +01:00
Rob Bradford
e0d79196c8 virtio-devices, vmm: Enhance debugging around virtio device activation
Sometimes when running under the CI tests fail due to a barrier not
being released and the guest blocks on an MMIO write. Add further
debugging to try and identify the issue.

See: #2118

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-01-08 14:06:44 +00:00
Sebastien Boeuf
f70852c04b virtio-devices: Update seccomp filters for virtio-net thread
On aarch64, the openat() syscall was missing from the seccomp filters
list, preventing the test_watchdog from running properly.

Fixes #2103

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-01-08 12:37:32 +00:00
Rob Bradford
315a730128 virtio-devices: net: Reduce debug level of EVENT_IDX messages
This logging is too spammy for info!() level and should be handled as
debug!() level

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-01-06 13:51:26 +01:00
Rob Bradford
fabd63072b misc: Remove unnecessary literal casts
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-01-04 13:46:37 +01:00
Rob Bradford
05cdef17f4 virtio-devices: mem, balloon: Use struct initialisation
error: field assignment outside of initializer for an instance created with Default::default()
   --> virtio-devices/src/mem.rs:496:9
    |
496 |         resp.resp_type = resp_type;
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
note: consider initializing the variable with `mem::VirtioMemResp { resp_type: resp_type, ..Default::default() }` and removing relevant reassignments
   --> virtio-devices/src/mem.rs:495:9
    |
495 |         let mut resp = VirtioMemResp::default();
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#field_reassign_with_default

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-01-04 13:46:37 +01:00
Rob Bradford
9f2e7f455f block_util, vhost_user_block: Avoid unnecessary literal cast
error: casting integer literal to `u64` is unnecessary
  --> block_util/src/lib.rs:35:30
   |
35 | pub const SECTOR_SIZE: u64 = (0x01 as u64) << SECTOR_SHIFT;
   |                              ^^^^^^^^^^^^^ help: try: `0x01_u64`
   |
   = note: `-D clippy::unnecessary-cast` implied by `-D warnings`
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-01-04 13:46:37 +01:00
Rob Bradford
e8c72b1b01 virtio-devices: pci: Improve debugging for activation barriers
On the CI we are seeing issues with the activation barriers not being released:

cloud-hypervisor: 12.452434193s: INFO:vmm/src/vm.rs:413 -- Waiting for barrier
cloud-hypervisor: 12.452499794s: INFO:virtio-devices/src/block.rs:382 -- Changing cache mode to writeback
cloud-hypervisor: 12.452605195s: INFO:vmm/src/vm.rs:413 -- Waiting for barrier
cloud-hypervisor: 12.452684596s: INFO:virtio-devices/src/transport/pci_device.rs:671 -- Waiting for barrier
cloud-hypervisor: 12.452708196s: INFO:virtio-devices/src/transport/pci_device.rs:673 -- Barrier released
cloud-hypervisor: 12.452717596s: INFO:vmm/src/vm.rs:415 -- Barrier released

Add some debugging to try and identify the vause of this issue.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-12-18 16:05:14 +00:00
Rob Bradford
ca48f1c995 virtio-devices: net: Support creating a device from a TAP fd
Add support for creating virtio-net device from existing TAP fd.
Currently only a single fd and thus no-more than 2 queues (one pair) is
suppored.

Fixes: #2052

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-12-17 22:51:30 +01:00
Rob Bradford
03db48306b vmm: Activate virtio device from VMM thread
When a device is ready to be activated signal to the VMM thread via an
EventFd that there is a device to be activated. When the VMM receives a
notification on the EventFd that there is a device to be activated
notify the device manager to attempt to activate any devices that have
not been activated.

As a side effect the VMM thread will create the virtio device threads.

Fixes: #1863

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-12-17 11:23:53 +00:00
Rob Bradford
dee42ebb29 virtio-devices: pci_device: Split out device activation
This can then be used to activate the device from a separate thread.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-12-17 11:23:53 +00:00
Rob Bradford
7cc729c7d9 pci, virtio-devices: Extend barrier returning through PCI code
We need to be able to return the barrier from the code that prepares to
activate the virtio device. This triggered by a write to the
configuration fields stored in the PCI BAR. Since bars can be accessed
by both memory mapping and through PCI config I/O several prototypes
must be changed.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-12-17 11:23:53 +00:00
Rob Bradford
1fc6d50f3e misc: Make Bus::write() return an Option<Arc<Barrier>>
This can be uses to indicate to the caller that it should wait on the
barrier before returning as there is some asynchronous activity
triggered by the write which requires the KVM exit to block until it's
completed.

This is useful for having vCPU thread wait for the VMM thread to proceed
to activate the virtio devices.

See #1863

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-12-17 11:23:53 +00:00
dependabot-preview[bot]
b51f112629 build(deps): bump libc from 0.2.80 to 0.2.81
Bumps [libc](https://github.com/rust-lang/libc) from 0.2.80 to 0.2.81.
- [Release notes](https://github.com/rust-lang/libc/releases)
- [Commits](https://github.com/rust-lang/libc/compare/0.2.80...0.2.81)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2020-12-08 08:13:51 +00:00
Rob Bradford
ffaab46934 misc: Use a more relaxed memory model when possible
When a total ordering between multiple atomic variables is not required
then use Ordering::Acquire with atomic loads and Ordering::Release with
atomic stores.

This will improve performance as this does not require a memory fence
on x86_64 which Ordering::SeqCst will use.

Add a comment to the code in the vCPU handling code where it operates on
multiple atomics to explain why Ordering::SeqCst is required.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-12-02 19:04:30 +01:00
Samuel Ortiz
1fc0b94fcd cargo: Move to crates.io vm-memory 0.4.0
vm-memory 0.4.0 now contains all our fixes.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2020-11-23 10:55:13 +01:00
Samuel Ortiz
72bb255ff6 pci, virtio-devices: Fix rust 1.48 clippy warnings
Unnecessary closure used to substitute value for `Option::None`
See https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_lazy_evaluations

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2020-11-20 17:09:28 +01:00
Rob Bradford
c0827e01b1 build: Update arc-swap dependency to 1.0.0
Also bump the vm-memory version to one that depends on arc-swap 1.0.0
too.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-11-16 14:10:09 +01:00
Rob Bradford
6d4656c68f virtio-devices: seccomp_filters: Add fsync to block io_uring filter
This is required when booting with hypervisor-fw.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-10-27 10:53:54 +00:00
dependabot-preview[bot]
f0d0d8ccaf build(deps): bump libc from 0.2.79 to 0.2.80
Bumps [libc](https://github.com/rust-lang/libc) from 0.2.79 to 0.2.80.
- [Release notes](https://github.com/rust-lang/libc/releases)
- [Commits](https://github.com/rust-lang/libc/compare/0.2.79...0.2.80)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2020-10-26 09:31:03 +00:00
Rob Bradford
d2c7645731 virtio-devices: Add simple virtio-watchdog device
This device operates a single virtq. When the driver offers a descriptor
to the device it is interpreted as a "ping" to indicate that the guest
is alive. A periodic timer fires and if when the timer is fired there
has not been a "ping" from the guest then the device will reset the VM.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-10-21 16:02:39 +01:00
Rob Bradford
cf86ca15c2 virtio-devices: vsock: Fix clippy issue in tests
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-10-19 21:53:38 -07:00
Rob Bradford
05c79119b9 virtio-devices: pci_common_config: Fix clippy issues in tests
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-10-19 21:53:38 -07:00
Sebastien Boeuf
cc8b553e86 virtio-devices: Remove mmio and pci differentiation
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2020-10-19 14:58:48 +01:00
Sebastien Boeuf
0c967e1aa0 virtio-devices: iommu: Update the list of seccomp filters
While using the virtio-iommu device involving L2 scenario, and tearing
things down all the way from L2 back to L0 exposed some bad syscalls
that were not part of the authorized list.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2020-10-14 19:15:09 +02:00
Sebastien Boeuf
30e1162d7c virtio: Replace some repr(C, packed) with repr(C)
The goal here is to replace anywhere possible a virtio structure
with a "C, packed" representation by a "C" representation. Some
virtio structures are not expected to be packed, therefore there's
no reason for using the more restrictive "C, packed" representation.

This is important since "packed" representation can still cause
undefined behaviors with Rust 2018.

By removing the need for "packed" representation, we can simplify a
bit of code by deriving the Serialize trait without writing the
implementation ourselves.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2020-10-07 22:11:36 +02:00
Sebastien Boeuf
1e3a6cb450 vmm: Simplify some of the io_uring code
Small patch creating a dedicated `block_io_uring_is_supported()`
function for the non-io_uring case, so that we can simplify the
code in the DeviceManager.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2020-10-07 14:26:49 +02:00
dependabot-preview[bot]
c2cc26fc82 build(deps): bump libc from 0.2.78 to 0.2.79
Bumps [libc](https://github.com/rust-lang/libc) from 0.2.78 to 0.2.79.
- [Release notes](https://github.com/rust-lang/libc/releases)
- [Commits](https://github.com/rust-lang/libc/compare/0.2.78...0.2.79)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2020-10-05 07:02:05 +00:00
Rob Bradford
6a9934d933 build: Fix vm-memory bump build error
A new version of vm-memory was released upstream which resulted in some
components pulling in that new version. Update the version number used
to point to the latest version but continue to use our patched version
due to the fix for #1258

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-10-02 16:38:02 +01:00
Hui Zhu
c75f8b2f89 virtio-balloon: Add memory_actual_size to vm.info to show memory actual size
The virtio-balloon change the memory size is asynchronous.
VirtioBalloonConfig.actual of balloon device show current balloon size.

This commit add memory_actual_size to vm.info to show memory actual size.

Signed-off-by: Hui Zhu <teawater@antfin.com>
2020-10-01 17:46:30 +02:00
dependabot-preview[bot]
76c3230e08 build(deps): bump libc from 0.2.77 to 0.2.78
Bumps [libc](https://github.com/rust-lang/libc) from 0.2.77 to 0.2.78.
- [Release notes](https://github.com/rust-lang/libc/releases)
- [Commits](https://github.com/rust-lang/libc/compare/0.2.77...0.2.78)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2020-10-01 05:40:02 +00:00
Hui Zhu
d03a48162f balloon.rs: BalloonEpollHandler: Fix wrong error in handle_event
error!("Unknown event for virtio-mem");
This error should be
error!("Unknown event for virtio-balloon");

Signed-off-by: Hui Zhu <teawater@antfin.com>
2020-09-25 08:36:23 +02:00
Josh Soref
5c3f4dbe6f ch: Fix various misspelled words
Misspellings were identified by https://github.com/marketplace/actions/check-spelling
* Initial corrections suggested by Google Sheets
* Additional corrections by Google Chrome auto-suggest
* Some manual corrections

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>
2020-09-23 08:59:31 +01:00
Sebastien Boeuf
46d972e402 virtio-devices: mem: Add missing syscall to seccomp filters
The missing syscall rt_sigprocmask(2) was triggered for the musl build
upon rebooting the VM, and was causing the VM to be killed.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2020-09-16 19:20:04 +02:00