Commit Graph

1489 Commits

Author SHA1 Message Date
dependabot-preview[bot]
38ed560d3a build(deps): bump thiserror from 1.0.12 to 1.0.13
Bumps [thiserror](https://github.com/dtolnay/thiserror) from 1.0.12 to 1.0.13.
- [Release notes](https://github.com/dtolnay/thiserror/releases)
- [Commits](https://github.com/dtolnay/thiserror/compare/1.0.12...1.0.13)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2020-03-23 07:12:27 +00:00
dependabot-preview[bot]
9f67de4735 build(deps): bump proc-macro-hack from 0.5.12 to 0.5.14
Bumps [proc-macro-hack](https://github.com/dtolnay/proc-macro-hack) from 0.5.12 to 0.5.14.
- [Release notes](https://github.com/dtolnay/proc-macro-hack/releases)
- [Commits](https://github.com/dtolnay/proc-macro-hack/compare/0.5.12...0.5.14)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2020-03-22 18:40:56 +00:00
dependabot-preview[bot]
ebab8090ee build(deps): bump thiserror from 1.0.11 to 1.0.12
Bumps [thiserror](https://github.com/dtolnay/thiserror) from 1.0.11 to 1.0.12.
- [Release notes](https://github.com/dtolnay/thiserror/releases)
- [Commits](https://github.com/dtolnay/thiserror/compare/1.0.11...1.0.12)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2020-03-21 08:38:25 +00:00
dependabot-preview[bot]
c67e407620 build(deps): bump syn from 1.0.16 to 1.0.17
Bumps [syn](https://github.com/dtolnay/syn) from 1.0.16 to 1.0.17.
- [Release notes](https://github.com/dtolnay/syn/releases)
- [Commits](https://github.com/dtolnay/syn/compare/1.0.16...1.0.17)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2020-03-21 08:38:11 +00:00
Rob Bradford
bdcfe1efbd tests: Add "discard_writes" pmem test
Factorise test_virtio_pmem to test changes are not persisted if file is
readonly.

As virtio-mem is now supported in the upstream kernel we can switch to
using the firmware.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-03-20 14:46:34 +01:00
Rob Bradford
70986022d8 tests: Make the test_virtio_pmem test use a temporary file
Rather than using a raw OS disk image. This will be useful when the test
is extended to doing I/O on the image.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-03-20 14:46:34 +01:00
Rob Bradford
f7197e8415 vmm: Add a "discard_writes=" to --pmem
This opens the backing file read-only, makes the pages in the mmap()
read-only and also makes the KVM mapping read-only. The file is also
mapped with MAP_PRIVATE to make the changes local to this process only.

This is functional alternative to having support for making a
virtio-pmem device readonly. Unfortunately there is no concept of
readonly virtio-pmem (or any type of NVDIMM/PMEM) in the Linux kernel so
to be able to have a block device that is appears readonly in the guest
requires significant specification and kernel changes.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-03-20 14:46:34 +01:00
Rob Bradford
d11a67b0fe vmm: Use more generic MmapRegion constructor
Switch to MmapRegion::build() and fill in the fields appropriately.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-03-20 14:46:34 +01:00
Rob Bradford
7257e890ef vmm: Add "readonly" parameter MemoryManager::create_userspace_mapping
Use this boolean to turn on the KVM_MEM_READONLY flag to indicate that
this memory mapping should not be writable by the VM.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-03-20 14:46:34 +01:00
Samuel Ortiz
03cb26cc70 release: v0.6.0
Expand the release notes and bump Cargo.toml.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2020-03-20 12:26:27 +01:00
Samuel Ortiz
3e9a39ca13 github: Upload the ch-remote asset
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2020-03-20 12:26:27 +01:00
Qiu Wenbo
c503118d16 vmm: fix a corrupted stack caused by get_win_size
According to `asm-generic/termios.h`, the `struct winsize` should be:

struct winsize {
        unsigned short ws_row;
        unsigned short ws_col;
        unsigned short ws_xpixel;
        unsigned short ws_ypixel;
};

The ioctl of TIOCGWINSZ will trigger a segfault on aarch64.

Signed-off-by: Qiu Wenbo <qiuwenbo@phytium.com.cn>
2020-03-20 07:30:06 +01:00
Rob Bradford
0788600702 build: Remove "pvh_boot" feature flag
This feature is stable and there is no need for this to be behind a
flag. This will also reduce the time needed to run the integration test
as we will not be running them all again under the flag.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-03-19 13:05:44 +00:00
Rob Bradford
477bc17f18 bin: Share VFIO device syntax between cloud-hypervisor and ch-remote
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-03-18 23:38:55 +00:00
dependabot-preview[bot]
96be2dbeff build(deps): bump serde_derive from 1.0.104 to 1.0.105
Bumps [serde_derive](https://github.com/serde-rs/serde) from 1.0.104 to 1.0.105.
- [Release notes](https://github.com/serde-rs/serde/releases)
- [Commits](https://github.com/serde-rs/serde/compare/v1.0.104...v1.0.105)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2020-03-18 20:49:40 +00:00
dependabot-preview[bot]
5a335fc408 build(deps): bump serde from 1.0.104 to 1.0.105
Bumps [serde](https://github.com/serde-rs/serde) from 1.0.104 to 1.0.105.
- [Release notes](https://github.com/serde-rs/serde/releases)
- [Commits](https://github.com/serde-rs/serde/compare/v1.0.104...v1.0.105)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2020-03-18 20:00:16 +00:00
Jose Carlos Venegas Munoz
a31ffef085 openapi: Add hotplug_size for memory hotplug
Add hotplug_size, needed to be defined when hotplug is used.

Signed-off-by: Jose Carlos Venegas Munoz <jose.carlos.venegas.munoz@intel.com>
2020-03-18 19:06:07 +00:00
Rob Bradford
87990f9e67 vmm: Add virtio-pci device to B/D/F hash table
This table currently contains only all the VFIO devices and it should
really contain all the PCI devices.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-03-18 19:05:58 +00:00
Rob Bradford
fb185fa839 vmm: Always return PCI B/D/F from add_virtio_pci_device
Previously this was only returned if the device had an IOMMU mapping and
whether the device should be added to the virtio-iommu. This was already
captured earlier as part of creating the device so use that information
instead.

Always returning the B/D/F is helpful as it facilitates virtio PCI
device hotplug.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-03-18 19:05:58 +00:00
dependabot-preview[bot]
462082c52f build(deps): bump arc-swap from 0.4.4 to 0.4.5
Bumps [arc-swap](https://github.com/vorner/arc-swap) from 0.4.4 to 0.4.5.
- [Release notes](https://github.com/vorner/arc-swap/releases)
- [Changelog](https://github.com/vorner/arc-swap/blob/master/CHANGELOG.md)
- [Commits](https://github.com/vorner/arc-swap/compare/v0.4.4...v0.4.5)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2020-03-18 19:00:24 +00:00
Sergio Lopez
c821e96e2a vhost_user_fs: Implement support for FUSE_LSEEK
Implement missing support for FUSE_LSEEK, which basically implies
calling to libc::lseek on the file handle. As this operation alters
the file offset, we take a write lock on the File's RwLock.

Signed-off-by: Sergio Lopez <slp@redhat.com>
2020-03-18 18:15:28 +00:00
Cathy Zhang
5aa9abca5e docs: Add document for vhost-user-net test with OVS/DPDK
Add a document to illustrate how to test vhost-user-net function with
OpenVSwitch + DPDK as backend.

Signed-off-by: Cathy Zhang <cathy.zhang@intel.com>
2020-03-18 16:43:09 +01:00
Sergio Lopez
6329219749 vm-virtio: queue: Use a SeqCst fence on get_used_event
On x86_64, a hint to the compiler is not enough, we need to issue a
MFENCE instruction. Replace the Acquire fence with a SeqCst one.

Without this, it's still possible to miss an used_event update,
leading to the omission of a notification, possibly stalling the
vring.

Signed-off-by: Sergio Lopez <slp@redhat.com>
2020-03-18 13:36:17 +00:00
Samuel Ortiz
63eeed29cc vm: Comment on the VM config update from memory hotplug
I spent a few minutes trying to understand why we were unconditionally
updating the VM config memory size, even if the guest memory resizing
did not happen.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2020-03-18 12:48:40 +01:00
dependabot-preview[bot]
0895bcb5dd build(deps): bump proc-macro-hack from 0.5.11 to 0.5.12
Bumps [proc-macro-hack](https://github.com/dtolnay/proc-macro-hack) from 0.5.11 to 0.5.12.
- [Release notes](https://github.com/dtolnay/proc-macro-hack/releases)
- [Commits](https://github.com/dtolnay/proc-macro-hack/compare/0.5.11...0.5.12)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2020-03-18 08:21:54 +00:00
dependabot-preview[bot]
0541f5aa54 build(deps): bump proc-macro-nested from 0.1.3 to 0.1.4
Bumps [proc-macro-nested](https://github.com/dtolnay/proc-macro-hack) from 0.1.3 to 0.1.4.
- [Release notes](https://github.com/dtolnay/proc-macro-hack/releases)
- [Commits](https://github.com/dtolnay/proc-macro-hack/commits)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2020-03-17 21:36:51 +00:00
dependabot-preview[bot]
51f51ea17d build(deps): bump libc from 0.2.67 to 0.2.68
Bumps [libc](https://github.com/rust-lang/libc) from 0.2.67 to 0.2.68.
- [Release notes](https://github.com/rust-lang/libc/releases)
- [Commits](https://github.com/rust-lang/libc/compare/0.2.67...0.2.68)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2020-03-17 21:36:38 +00:00
Samuel Ortiz
9cf67d133f arch: x86: Always set the bootloader type
We set it to 0xff, which is for unregistered loaders.
The kernel checks that the bootloader ID is set when e.g. loading
ramdisks, so not setting it when we get a bootparams header from the
loader will prevent the kernel from loading ramdisks.

Fixes: #918

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2020-03-17 19:11:38 +01:00
Samuel Ortiz
ad354700c9 arch: x86: Extract common bootparams settings
We're going to add more common settings, so let's avoid duplication
between the 2 branches.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2020-03-17 19:11:38 +01:00
Rob Bradford
28a5f9dc19 vmm: acpi: Remove unused IORT related structures
The IORT table for virtio-iommu use was removed and replaced with a
purely virtio based solution. Although the table construction was
removed these structures were left behind.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-03-17 12:46:26 +00:00
Liu Bo
5c1207c198 vhost-user-fs: handle FS_IO request
Virtiofs's dax window can be used as read/write's source (e.g. mmap a file
on virtiofs), but the dax window area is not shared with vhost-user
backend, i.e. virtiofs daemon.

To make those IO work, addresses of this kind of IO source are routed to
VMM via FS_IO requests to perform a read/write from an fd directly to the
given GPA.

This adds the support of FS_IO request to clh's vhost-user-fs master part.

Signed-off-by: Liu Bo <bo.liu@linux.alibaba.com>
2020-03-17 08:23:38 +01:00
dependabot-preview[bot]
f61f78eac6 build(deps): bump anyhow from 1.0.26 to 1.0.27
Bumps [anyhow](https://github.com/dtolnay/anyhow) from 1.0.26 to 1.0.27.
- [Release notes](https://github.com/dtolnay/anyhow/releases)
- [Commits](https://github.com/dtolnay/anyhow/compare/1.0.26...1.0.27)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2020-03-15 09:03:20 +00:00
Alejandro Jimenez
efb2447801 pvh: Add integration test to validate PVH boot
Add an integration test that builds cloud-hypervisor with
the pvh_boot feature and boots a kernel built with CONFIG_PVH.

Signed-off-by: Alejandro Jimenez <alejandro.j.jimenez@oracle.com>
2020-03-13 18:29:44 +01:00
Alejandro Jimenez
da084fade7 pvh: Add unit tests for initial sregs and control registers
Validate correct GDT entries, initial segment configuration, and control
register bits that are required by PVH boot protocol.

Signed-off-by: Alejandro Jimenez <alejandro.j.jimenez@oracle.com>
2020-03-13 18:29:44 +01:00
Alejandro Jimenez
64941bfcad pvh: Add unit tests for start_info and memory map structures
Expand the unit tests to cover the configure_system() code when
using the PVH boot protocol. Verify the method for adding memory
map table entries in the format specified by PVH boot protocol.

Signed-off-by: Alejandro Jimenez <alejandro.j.jimenez@oracle.com>
2020-03-13 18:29:44 +01:00
Alejandro Jimenez
9e247c4e06 pvh: Introduce "pvh_boot" feature
Use a new feature called "pvh_boot" to enable using the PVH boot
protocol if the guest kernel supports it. The feature can be enabled
by building with:

cargo build [--release] --features "pvh_boot"

Once performance has been evaluated, this can be made part of the
default set of features so that any guest that supports it boots
using PVH as the preferred option as is the case in QEMU.

Signed-off-by: Alejandro Jimenez <alejandro.j.jimenez@oracle.com>
2020-03-13 18:29:44 +01:00
Alejandro Jimenez
a22bc3559f pvh: Write start_info structure to guest memory
Fill the hvm_start_info and related memory map structures as
specified in the PVH boot protocol. Write the data structures
to guest memory at the GPA that will be stored in %rbx when
the guest starts.

Signed-off-by: Alejandro Jimenez <alejandro.j.jimenez@oracle.com>
2020-03-13 18:29:44 +01:00
Alejandro Jimenez
840a9a97ff pvh: Initialize vCPU regs/sregs for PVH boot
Set the initial values of the KVM vCPU registers as specified in
the PVH boot ABI:

https://xenbits.xen.org/docs/unstable/misc/pvh.html

Signed-off-by: Alejandro Jimenez <alejandro.j.jimenez@oracle.com>
2020-03-13 18:29:44 +01:00
Alejandro Jimenez
24f0e42e6a pvh: Introduce EntryPoint struct
In order to properly initialize the kvm regs/sregs structs for
the guest, the load_kernel() return type must specify which
boot protocol to use with the entry point address it returns.

Make load_kernel() return an EntryPoint struct containing the
required information. This structure will later be used
in the vCPU configuration methods to setup the appropriate
initial conditions for the guest.

Signed-off-by: Alejandro Jimenez <alejandro.j.jimenez@oracle.com>
2020-03-13 18:29:44 +01:00
Alejandro Jimenez
98b956886e pvh: Add definitions for PVH boot protocol support
Create supporting definitions to use the hvm start info and memory
map table entry struct definitions from the linux-loader crate in
order to enable PVH boot protocol support

Signed-off-by: Alejandro Jimenez <alejandro.j.jimenez@oracle.com>
2020-03-13 18:29:44 +01:00
Rob Bradford
6e6ef8348b build: Fix log dependency
@dependabot bumped the dependency to 0.4.10 but this is no longer a
valid version so downgrade appropriately.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-03-13 17:27:38 +01:00
dependabot-preview[bot]
291f1cef29 build(deps): bump linux-loader from 0c754f3 to 0ce5bfa
Bumps [linux-loader](https://github.com/rust-vmm/linux-loader) from `0c754f3` to `0ce5bfa`.
- [Release notes](https://github.com/rust-vmm/linux-loader/releases)
- [Commits](0c754f380a...0ce5bfa70d)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2020-03-13 16:26:50 +00:00
Sergio Lopez
07cc73bddc vhost_user_fs: add a flag to disable extended attributes
Extended attributes (xattr) support has a huge impact on write
performance. The reason for this is that, if enabled, FUSE sends a
setxattr request after each write operation, and due to the inode
locking inside the kernel during said request, the ability to execute
the operations in parallel becomes heavily limited.

Signed-off-by: Sergio Lopez <slp@redhat.com>
2020-03-13 15:20:34 +00:00
Sergio Lopez
710520e9a1 vhost_user_fs: Process requests in parallel with a thread pool
This change enables vhost_user_fs to process multiple requests in
parallel by scheduling them into a ThreadPool (from the Futures
crate).

Parallelism on a single file is limited by the nature of the operation
executed on it. A recent commit replaced the Mutex that protects the
File within HandleData with a RwLock, to allow some operations (at
this moment, only "read" and "write") to proceed in parallel by
acquiring a read lock.

A more complex approach was also implemented [1], involving
instrumentation through vhost_user_backend to be able to serialize
completions, reducing the pressure on the vring RwLock. This strategy
improved the performance on some corner cases, while making it worse
on other, more common ones. This fact, in addition to it requiring
wider changes through the source code, prompted me to drop it in favor
of this one.

[1] https://github.com/slp/cloud-hypervisor/tree/vuf_async

Signed-off-by: Sergio Lopez <slp@redhat.com>
2020-03-13 15:20:34 +00:00
Sergio Lopez
90309b5106 vm-virtio: queue: Add methods to switch a descriptor context
"DescriptorChain"s are tied to the lifetime of the referenced
GuestMemoryMmap object (for good reasons), but sometimes (i.e., when
processing descriptors from different contexts) we may need to switch
them to point a different GuestMemoryMmap.

Here we introduce the structure DescriptorHead, which holds the data
needed to rebuild a DescriptorChain, the method "get_head" which
returns the DescriptorHead for a DescriptorChain, and the method
"new_from_head", which allows to create a new DescriptorChain with a
DescriptorHead and a new reference to a GuestMemoryMmap.

Signed-off-by: Sergio Lopez <slp@redhat.com>
2020-03-13 15:20:34 +00:00
Sergio Lopez
2294c2d2c9 Add .rustfmt.toml to the project
For rustfmt to accept modern syntax like "async move", a .rustfmt.toml
with "edition = 2018" needs to be created.

https://github.com/rust-lang/rustfmt/issues/3149

Signed-off-by: Sergio Lopez <slp@redhat.com>
2020-03-13 15:20:34 +00:00
Sergio Lopez
48c4885b47 vhost_user_fs: replace HandleData's File Mutex with RwLock
Replace HandleData's File Mutex with a RwLock to have more granularity
on the lock. This allows operations on the same File that are safe to
be run in parallel (at this moment, read and write), to acquire a read
lock to avoid waiting on each other.

Signed-off-by: Sergio Lopez <slp@redhat.com>
2020-03-13 15:20:34 +00:00
Samuel Ortiz
134e64c612 arch, qcow: Fix 1.42.0 clippy warnings
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2020-03-13 12:26:15 +00:00
Samuel Ortiz
6ea85ca86c resources: Dockerfile: Update Rust toolchain
To the latest stable version: 1.42.0

Fixes: #909

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2020-03-13 12:26:15 +00:00
Rob Bradford
4579afa091 vmm: For --disk error if socket and path is specified
This is an error as the path should be specfied by the unmanaged
backend.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-03-13 11:41:52 +00:00