Commit Graph

235 Commits

Author SHA1 Message Date
Bo Chen
639a7dd73a vmm: Improve 'test_config_validation' with precise Err assertions
Fixed: #3879

Signed-off-by: Bo Chen <chen.bo@intel.com>
2022-03-25 09:17:05 +00:00
Sebastien Boeuf
afd9f17b73 virtio-fs: Deprecate the DAX feature
Disable the DAX feature from the virtio-fs implementation as the feature
is still not stable. The feature is deprecated, meaning the 'dax'
parameter will be removed in about 2 releases cycles.

In the meantime, the parameter value is ignored and forced to be
disabled.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2022-03-24 10:39:11 -07:00
Rob Bradford
0834eca8d4 vmm: config: Validate IOMMU configuration
Ensure devices that are specified to be on a PCI segment that is behind
the IOMMU are IOMMU enabled if possible or error out for those devices
that do not support it.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2022-03-22 11:13:20 +00:00
Rob Bradford
54b65107b1 vmm: config: Validate vDPA devices in configuration
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2022-03-22 11:13:20 +00:00
Sebastien Boeuf
72169686fe vmm: Add a vDPA device parameter
Introduce a new --vdpa parameter associated with a VdpaConfig for the
future creation of a Vdpa device.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2022-03-18 12:28:40 +01:00
Akira Moroo
2451c4d833 vmm: Implement GDB event handler to enable --gdb flag
This commit adds event fds and the event handler to send/receive
requests and responses from the GDB thread. It also adds `--gdb` flag to
enable GDB stub feature.

Signed-off-by: Akira Moroo <retrage01@gmail.com>
2022-02-23 11:16:09 +00:00
Michael Zhao
0fc3fad363 vmm: Limit "Dies" in VCPU topology on AArch64
`Dies per package` setting of VCPU topology doesnot apply on AArch64.
Now we only accept `1` value. This way we can make the `dies` field
transparent, avoid it from impacting the topology setting.

Signed-off-by: Michael Zhao <michael.zhao@arm.com>
2022-02-22 09:21:00 +08:00
Fabiano Fidêncio
bd024bffb1 vmm: config: Move add_to_config to config.rs
Let's move add_to_config to config.rs so it can be used from both inside
and outside of the vm.rs file.

Signed-off-by: Fabiano Fidêncio <fabiano.fidencio@intel.com>
2022-02-15 11:07:26 -08:00
Rob Bradford
6994b33a24 vmm: Add "iommu_segments" to --platform
This provides a list of segments on which all devices will be placed
behind the IOMMU.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2022-02-11 11:20:04 +00:00
Sebastien Boeuf
052f38fa96 vmm: Enable guest to report free pages through virtio-balloon
Adding a new parameter free_page_reporting=on|off to the balloon device
so that we can enable the corresponding feature from virtio-balloon.

Running a VM with a balloon device where this feature is enabled allows
the guest to report pages that are free from guest's perspective. This
information is used by the VMM to release the corresponding pages on the
host.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2022-02-11 12:10:07 +01:00
Rob Bradford
5e19422fcf vmm: config: Fix PCI segment validation error format string
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2022-02-09 13:50:36 +00:00
Rob Bradford
26d1a76ad9 vmm: config: Validate balloon size is less than RAM size
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2022-02-09 13:50:36 +00:00
Sebastien Boeuf
7b93a8dd78 vmm: config: Allow --kernel to be used with TDX
The TDVF specification has been updated with the ability to provide a
specific payload, which means we will be able to achieve direct kernel
boot.

For that reason, let's not prevent the user from using --kernel
parameter when running with TDX.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2022-02-04 13:57:56 +01:00
Rob Bradford
70af81d755 vmm: config: Fix clippy (unnecessary_to_owned) issue
warning: unnecessary use of `to_string`
    --> vmm/src/config.rs:2199:38
     |
2199 | ...                   .get(&memory_zone.to_string())
     |                            ^^^^^^^^^^^^^^^^^^^^^^^^ help: use: `memory_zone`
     |
     = note: `#[warn(clippy::unnecessary_to_owned)]` on by default
     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_to_owned

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2022-01-07 08:16:26 -08:00
Ziye Yang
61ce4b8f31 vmm: Update comments related with enum Error struct in config.rs
Make the comments style consistent

Signed-off-by: Ziye Yang <ziye.yang@intel.com>
2021-11-26 10:22:57 +01:00
Ziye Yang
896a651b5c vmm: Update some comments and error message info in config.rs
Update some comments and error message info related with TDX.

Signed-off-by: Ziye Yang <ziye.yang@intel.com>
2021-11-24 10:02:00 +01:00
Sebastien Boeuf
a1f1dfddeb vmm: Fix CpusConfig validation error message
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-11-15 17:27:23 +01:00
Sebastien Boeuf
932c8c9713 vmm: Add CPU affinity support
With the introduction of a new option `affinity` to the `cpus`
parameter, Cloud Hypervisor can now let the user choose the set
of host CPUs where to run each vCPU.

This is useful when trying to achieve CPU pinning, as well as making
sure the VM runs on a specific NUMA node.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-11-12 09:40:37 +00:00
Sebastien Boeuf
a4f5ad6076 option_parser: Fix inner bracket support with list of integers
Give the option parser the ability to handle tuples with inner brackets
containing list of integers. The following example can now be handled
correctly "option=[key@[v1-v2,v3,v4]]" which means the option is
assigned a tuple with a key associated with a list of integers between
the range v1 - v2, as well as v3 and v4.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-11-12 09:40:37 +00:00
Sebastien Boeuf
ad521fd4e4 option_parser: Create generic type Tuple
Creates a new generic type Tuple so that the same implementation of
FromStr trait can be reused for both parsing a list of two integers and
parsing a list of one integer associated with a list of integers.

This anticipates the need for retrieving sublists, which will be needed
when trying to describe the host CPU affinity for every vCPU.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-11-09 08:59:59 +01:00
Sebastien Boeuf
b81d758c41 option_parser: Expect commas instead of colons for lists
The elements of a list should be using commas as the correct delimiter
now that it is supported. Deprecate use of colons as delimiter.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-11-09 08:59:59 +01:00
Rob Bradford
7cfeefde57 vmm: Add validation logic to check user specified pci_segment is valid
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-11-02 16:55:42 +00:00
Rob Bradford
f71f6da907 vmm: Add pci_segment option to UserDeviceConfig
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-11-02 16:55:42 +00:00
Rob Bradford
d4f7f42800 vmm: Add pci_segment option to DeviceConfig
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-11-02 16:55:42 +00:00
Rob Bradford
ca955a47ff vmm: Implement pci_segment options for hotpluggable virtio devices
For all the devices that support being hotplugged (disk, net, pmem, fs
and vsock) add "pci_segment" option and propagate that through to the
addition onto the PCI busses.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-11-02 16:55:42 +00:00
Rob Bradford
f8d9c073f0 vmm: Add "--platform"
This currently contains only the number over PCI segments to create.
This is limited to 16 at the moment which should allow 496 user specified
PCI devices.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-11-02 16:55:42 +00:00
Rob Bradford
83066cf58e vmm: Set a default maximum physical address size
When using PVH for booting (which we use for all firmwares and direct
kernel boot) the Linux kernel does not configure LA57 correctly. As such
we need to limit the address space to the maximum 4-level paging address
space.

If the user knows that their guest image can take advantage of the
5-level addressing and they need it for their workload then they can
increase the physical address space appropriately.

This PR removes the TDX specific handling as the new address space limit
is below the one that that code specified.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-10-01 08:59:15 -07:00
Yu Li
08021087ec vmm: add prefault option in memory and memory-zone
The argument `prefault` is provided in MemoryManager, but it can
only be used by SGX and restore.
With prefault (MAP_POPULATE) been set, subsequent page faults will
decrease during running, although it will make boot slower.

This commit adds `prefault` in MemoryConfig and MemoryZoneConfig.
To resolve conflict between memory and restore, argument
`prefault` has been changed from `bool` to `Option<bool>`, when
its value is None, config from memory will be used, otherwise
argument in Option will be used.

Signed-off-by: Yu Li <liyu.yukiteru@bytedance.com>
2021-09-29 14:17:35 +02:00
Rob Bradford
387753ae1d vmm: Remove concept of "input_enabled"
This concept ends up being broken with multiple types on input connected
e.g. console on TTY and serial on PTY. Already the code for checking for
injecting into the serial device checks that the serial is configured.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-09-08 11:26:48 -07:00
Henry Wang
bcae6c41e3 vmm, doc: Forbid same memory zone in multiple NUMA nodes
It is forbidden that the same memory zone belongs to more than one
NUMA node. This commit adds related validation to the `--numa`
parameter to prevent the user from specifying such configuration.

Signed-off-by: Henry Wang <Henry.Wang@arm.com>
2021-08-12 10:49:02 +02:00
Rob Bradford
3efccd0fef vmm: config: Ensure shared memory is enabled if using user-devices
Correct operation of user devices (vfio-user) requires shared memory so
flag this to prevent it from failing in strange ways.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-08-10 16:01:00 +01:00
Rob Bradford
7fbec7113e main, config: Add support for --user-device
This allows the user to specify devices that are running in a different
userspace process and communicated with vfio-user.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-08-10 16:01:00 +01:00
Sebastien Boeuf
6b710209b1 numa: Add optional sgx_epc_sections field to NumaConfig
This new option allows the user to define a list of SGX EPC sections
attached to a specific NUMA node.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-07-09 14:45:30 +02:00
Sebastien Boeuf
9aedabe11e sgx: Add mandatory id field to SgxEpcConfig
In order to uniquely identify each SGX EPC section, we introduce a
mandatory option `id` to the `--sgx-epc` parameter.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-07-09 14:45:30 +02:00
Fei Li
aa27f0e743 virtio-balloon: add deflate_on_oom support
Sometimes we need balloon deflate automatically to give memory
back to guest, especially for some low priority guest processes
under memory pressure. Enable deflate_on_oom to support this.

Usage: --balloon "size=0,deflate_on_oom=on" \

Signed-off-by: Fei Li <lifei.shirley@bytedance.com>
2021-06-16 09:55:22 +02:00
Rob Bradford
30b74e74cd vmm: tdx: Reject attempt to use --kernel with --tdx
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-05-10 15:12:41 +01:00
Sebastien Boeuf
b5c6b04b36 virtio-devices, vmm: vhost: net: Add client mode support
Adding the support for an OVS vhost-user backend to connect as the
vhost-user client. This means we introduce with this patch a new
option to our `--net` parameter. This option is called 'server' in order
to ask the VMM to run as the server for the vhost-user socket.

Fixes #1745

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-05-05 16:05:51 +02:00
Rob Bradford
7e0ccce225 vmm: config: Validate that vCPUs is sufficient for MQ queue count
Fixes: #2563

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-05-04 19:49:34 +02:00
Rob Bradford
86e4067437 vmm: config: Reject reserved fd from network config
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-04-13 14:29:18 +02:00
Rob Bradford
e0c0d0e142 vmm: config: Validate network configuration
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-04-13 14:29:18 +02:00
Bo Chen
b176ddfe2a virtio-devices, vmm: Add rate limiter for the TX queue of virtio-net
Partially fixes: #1286

Signed-off-by: Bo Chen <chen.bo@intel.com>
2021-03-30 19:47:43 +02:00
Gaelan Steele
21506a4a76 vmm: reorder constructor fields to match struct
Satisfies nightly clippy.

Signed-off-by: Gaelan Steele <gbs@canishe.com>
2021-03-29 09:55:29 +02:00
Rob Bradford
3c6dfd7709 tdx: Address Rust 1.51.0 clippy issue (upper_case_acroynms)
error: name `FinalizeTDX` contains a capitalized acronym
   --> vmm/src/vm.rs:274:5
    |
274 |     FinalizeTDX(hypervisor::HypervisorVmError),
    |     ^^^^^^^^^^^ help: consider making the acronym lowercase, except the initial letter: `FinalizeTdx`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#upper_case_acronyms

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-03-26 11:32:09 +00:00
Rob Bradford
9762c8bc28 vmm: Address Rust 1.51.0 clippy issue (upper_case_acroynms)
warning: name `LocalAPIC` contains a capitalized acronym
   --> vmm/src/cpu.rs:197:8
    |
197 | struct LocalAPIC {
    |        ^^^^^^^^^ help: consider making the acronym lowercase, except the initial letter: `LocalApic`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#upper_case_acronyms

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-03-26 11:32:09 +00:00
Bo Chen
af8def364d virtio-devices, vmm: add I/O rate limiter on block device
This patch is based on the 'rate_limiter' module from firecracker[1]. To
simplify dependencies, we reply on 'vmm-sys-util::TimerFd' instead of
the `timerfd` crate.

[1]https://github.com/firecracker-microvm/firecracker/tree/master/src/rate_limiter

Fixes: #1285

Signed-off-by: Bo Chen <chen.bo@intel.com>
2021-03-12 09:35:03 +01:00
Rob Bradford
835a31e283 vmm: config: Require max and boot vCPUs to be equal for TDX
CPU hotplug is not possible with TDX

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-03-08 18:30:00 +00:00
Rob Bradford
57c8c250fd tdx: Permit starting Cloud Hypervisor without --kernel
This is not required if TDX is present.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-03-08 18:30:00 +00:00
Rob Bradford
66a3bed086 vmm: config: Add "--tdx" option parsing
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-03-08 18:30:00 +00:00
Bo Chen
d361fc1a36 vmm: config: Fix and complete the help info for the '--disk' option
The help information displayed for our `--disk` option is incorrect and
incomplete, e.g. missing the `direct` and `poll_queue` field.

Signed-off-by: Bo Chen <chen.bo@intel.com>
2021-02-23 08:55:33 +01:00
Rob Bradford
9c5be6f660 build: Remove unnecessary Result<> returns
If the function can never return an error this is now a clippy failure:

error: this function's return value is unnecessarily wrapped by `Result`
   --> virtio-devices/src/watchdog.rs:215:5
    |
215 | /     fn set_state(&mut self, state: &WatchdogState) -> io::Result<()> {
216 | |         self.common.avail_features = state.avail_features;
217 | |         self.common.acked_features = state.acked_features;
218 | |         // When restoring enable the watchdog if it was previously enabled. We reset the timer
...   |
223 | |         Ok(())
224 | |     }
    | |_____^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_wraps

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-02-11 18:18:44 +00:00