Commit Graph

1934 Commits

Author SHA1 Message Date
Wei Liu
f84ddedb1a hypervisor, vmm: introduce trait functions for aarch64 PMU
The original code uses kvm_device_attr directly outside of the
hyeprvisor crate. That leaks hypervisor details.

No functional change intended.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-07-21 23:37:53 +01:00
dependabot[bot]
b5d10eb28b build: bump clap from 3.2.13 to 3.2.14
Bumps [clap](https://github.com/clap-rs/clap) from 3.2.13 to 3.2.14.
- [Release notes](https://github.com/clap-rs/clap/releases)
- [Changelog](https://github.com/clap-rs/clap/blob/master/CHANGELOG.md)
- [Commits](https://github.com/clap-rs/clap/compare/v3.2.13...v3.2.14)

---
updated-dependencies:
- dependency-name: clap
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
2022-07-21 16:07:56 +00:00
dependabot[bot]
269b78ca0f build: bump serde from 1.0.139 to 1.0.140
Bumps [serde](https://github.com/serde-rs/serde) from 1.0.139 to 1.0.140.
- [Release notes](https://github.com/serde-rs/serde/releases)
- [Commits](https://github.com/serde-rs/serde/compare/v1.0.139...v1.0.140)

---
updated-dependencies:
- dependency-name: serde
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
2022-07-21 13:17:32 +00:00
dependabot[bot]
5c20869dd5 build: bump clap from 3.2.12 to 3.2.13
Bumps [clap](https://github.com/clap-rs/clap) from 3.2.12 to 3.2.13.
- [Release notes](https://github.com/clap-rs/clap/releases)
- [Changelog](https://github.com/clap-rs/clap/blob/master/CHANGELOG.md)
- [Commits](https://github.com/clap-rs/clap/compare/v3.2.12...v3.2.13)

---
updated-dependencies:
- dependency-name: clap
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
2022-07-21 12:00:29 +01:00
dependabot[bot]
b440cb7d23 build: bump vmm-sys-util from 0.9.0 to 0.10.0
This patch requires the vhost-user-backend crate to be bumped from 0.5.0
to 0.5.1.

Bumps [vmm-sys-util](https://github.com/rust-vmm/vmm-sys-util) from 0.9.0 to 0.10.0.
- [Release notes](https://github.com/rust-vmm/vmm-sys-util/releases)
- [Changelog](https://github.com/rust-vmm/vmm-sys-util/blob/main/CHANGELOG.md)
- [Commits](https://github.com/rust-vmm/vmm-sys-util/compare/v0.9.0...v0.10.0)

---
updated-dependencies:
- dependency-name: vmm-sys-util
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2022-07-20 09:40:28 +00:00
Wei Liu
f21fc1dcb6 hypervisor: x86: provide a generic MsrEntry structure
Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-07-20 10:13:41 +01:00
Wei Liu
4d2cc3778f hypervisor: move away from MsrEntries type
It is a flexible array. Switch to vector and slice instead.

No functional change intended.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-07-20 10:13:41 +01:00
Wei Liu
05e5106b9b hypervisor x86: provide a generic LapicState structure
This requires making get/set_lapic_reg part of the type.

For the moment we cannot provide a default variant for the new type,
because picking one will be wrong for the other hypervisor, so I just
drop the test cases that requires LapicState::default().

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-07-19 09:38:38 +01:00
Wei Liu
6a8c0fc887 hypervisor: provide a generic FpuState structure
Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-07-18 22:15:30 +01:00
Wei Liu
08135fa085 hypervisor: provide a generic CpudIdEntry structure
Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-07-18 22:15:30 +01:00
Wei Liu
45fbf840db hypervisor, vmm: move away from CpuId type
CpuId is an alias type for the flexible array structure type over
CpuIdEntry. The type itself and the type of the element in the array
portion are tied to the underlying hypervisor.

Switch to using CpuIdEntry slice or vector directly. The construction of
CpuId type is left to hypervisors.

This allows us to decouple CpuIdEntry from hypervisors more easily.

No functional change intended.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-07-18 22:15:30 +01:00
Wei Liu
f1ab86fecb hypervisor: x86: provide a generic SpecialRegisters structure
Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-07-15 10:21:43 +01:00
Wei Liu
75797827d5 hypervisor: x86: provide a generic SegmentRegister structure
And drop SegmentRegisterOps since it is no longer required.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-07-15 10:21:43 +01:00
Wei Liu
8b7781e267 hypervisor: x86: provide a generic StandardRegisters structure
We only need to do this for x86 since MSHV does not have aarch64 support
yet. This reduces unnecessary code churn.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-07-15 10:21:43 +01:00
dependabot[bot]
2de7121680 build: bump clap from 3.2.11 to 3.2.12
Bumps [clap](https://github.com/clap-rs/clap) from 3.2.11 to 3.2.12.
- [Release notes](https://github.com/clap-rs/clap/releases)
- [Changelog](https://github.com/clap-rs/clap/blob/master/CHANGELOG.md)
- [Commits](https://github.com/clap-rs/clap/compare/v3.2.11...v3.2.12)

---
updated-dependencies:
- dependency-name: clap
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
2022-07-15 00:43:41 +00:00
Wei Liu
4201bf4011 hypervisor: provide a generic ClockData structure
Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-07-14 22:09:04 +01:00
Wei Liu
beb4f86b82 hypervisor, vmm: drop VmState and code
VmState was introduced to hold hypervisor specific VM state. KVM does
not need it and MSHV does not really use it yet.

Just drop the code. It can be easily revived once there is a need.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-07-14 22:09:04 +01:00
Alyssa Ross
a455917db5 vmm: fix missed API or debug events
Previously, we were assuming that every time an eventfd notified us,
there was only a single event waiting for us.  This meant that if,
while one API request was being processed, two more arrived, the
second one would not be processed (until the next one arrived, when it
would be processed instead of that event, and so on).  To fix this,
make sure we're processing the number of API and debug requests we've
been told have arrived, rather than just one.  This is easy to
demonstrate by sending lots of API events and adding some sleeps to
make sure multiple events can arrive while each is being processed.

For other uses of eventfd, like the exit event, this doesn't matter —
even if we've received multiple exit events in quick succession, we
only need to exit once.  So I've only made this change where receiving
an event is non-idempotent, i.e. where it matters that we process the
event the right number of times.

Technically, reset requests are also non-idempotent — there's an
observable difference between a VM resetting once, and a VM resetting
once and then immediately resetting again.  But I've left that alone
for now because two resets in immediate succession doesn't sound like
something anyone would ever want to me.

Signed-off-by: Alyssa Ross <hi@alyssa.is>
2022-07-14 17:44:11 +01:00
Michael Zhao
2d8635f04a hypervisor: Refactor system_registers on AArch64
Function `system_registers` took mutable vector reference and modified
the vector content. Now change the definition to `get/set` style.
And rename to `get/set_sys_regs` to align with other functions.

Signed-off-by: Michael Zhao <michael.zhao@arm.com>
2022-07-14 22:55:19 +08:00
Michael Zhao
c445513976 hypervisor: Refactor core_registers on AArch64
On AArch64, the function `core_registers` and `set_core_registers` are
the same thing of `get/set_regs` on x86_64. Now the names are aligned.
This will benefit supporting `gdb`.

Signed-off-by: Michael Zhao <michael.zhao@arm.com>
2022-07-14 22:55:19 +08:00
dependabot[bot]
fc2cc53d51 build: bump clap from 3.2.8 to 3.2.11
Bumps [clap](https://github.com/clap-rs/clap) from 3.2.8 to 3.2.11.
- [Release notes](https://github.com/clap-rs/clap/releases)
- [Changelog](https://github.com/clap-rs/clap/blob/master/CHANGELOG.md)
- [Commits](https://github.com/clap-rs/clap/compare/v3.2.8...v3.2.11)

---
updated-dependencies:
- dependency-name: clap
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
2022-07-14 14:49:35 +00:00
Wei Liu
0e8769d76a device_manager: assert passthrough_device has the correct type
There is a lot of unsafe code in such a small function. Add an assert
to help detect issues earlier.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-07-14 08:09:50 +01:00
dependabot[bot]
a99c33ccfa build: bump serde from 1.0.138 to 1.0.139
Bumps [serde](https://github.com/serde-rs/serde) from 1.0.138 to 1.0.139.
- [Release notes](https://github.com/serde-rs/serde/releases)
- [Commits](https://github.com/serde-rs/serde/compare/v1.0.138...v1.0.139)

---
updated-dependencies:
- dependency-name: serde
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
2022-07-11 23:54:20 +00:00
Wei Liu
84bbaf06d1 hypervisor: turn boot_msr_entries into a trait method
This allows dispatching to either KVM or MSHV automatically.

No functional change.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-07-08 16:49:58 +01:00
Rob Bradford
121729a3b0 vmm: Split signal handling for VM and VMM signals
The VM specific signal (currently only SIGWINCH) should only be handled
when the VM is running.

The generic VMM signals (SIGINT and SIGTERM) need handling at all times.

Split the signal handling into two separate threads which have differing
lifetimes.

Tested by:
1.) Boot full VM and check resize handling (SIGWINCH) works & sending
    SIGTERM leads to cleanup (tested that API socket is removed.)
2.) Start without a VM and send SIGTERM/SIGINT and observe cleanup (API
    socket removed)
3.) Boot full VM, delete VM and observe 2.) holds.
4.) Boot full VM, delete VM, recreate VM and observe 1.) holds.

Fixes: #4269

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2022-07-08 15:15:46 +01:00
Sebastien Boeuf
a650b8645f deps: bump virtio-queue from 0.3.0 to 0.4.0
And along with virtio-queue, we must also bump vhost-user-backend from
0.3.0 to 0.5.0 (since it relies on virtio-queue 0.4.0).

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2022-07-06 16:57:09 +02:00
dependabot[bot]
0b311f6c4c build: bump once_cell from 1.12.1 to 1.13.0
Bumps [once_cell](https://github.com/matklad/once_cell) from 1.12.1 to 1.13.0.
- [Release notes](https://github.com/matklad/once_cell/releases)
- [Changelog](https://github.com/matklad/once_cell/blob/master/CHANGELOG.md)
- [Commits](https://github.com/matklad/once_cell/compare/v1.12.1...v1.13.0)

---
updated-dependencies:
- dependency-name: once_cell
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
2022-07-06 02:35:11 +00:00
dependabot[bot]
4f611c8654 build: bump serde from 1.0.137 to 1.0.138
Bumps [serde](https://github.com/serde-rs/serde) from 1.0.137 to 1.0.138.
- [Release notes](https://github.com/serde-rs/serde/releases)
- [Commits](https://github.com/serde-rs/serde/compare/v1.0.137...v1.0.138)

---
updated-dependencies:
- dependency-name: serde
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
2022-07-06 00:56:48 +00:00
dependabot[bot]
9c0872def7 build: bump once_cell from 1.12.0 to 1.12.1
Bumps [once_cell](https://github.com/matklad/once_cell) from 1.12.0 to 1.12.1.
- [Release notes](https://github.com/matklad/once_cell/releases)
- [Changelog](https://github.com/matklad/once_cell/blob/master/CHANGELOG.md)
- [Commits](https://github.com/matklad/once_cell/compare/v1.12.0...v1.12.1)

---
updated-dependencies:
- dependency-name: once_cell
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
2022-07-05 11:39:42 +00:00
Rob Bradford
93237f0106 vmm: Set MADT "Online Capable" flag
The Linux kernel now checks for this before marking CPUs as
hotpluggable:

commit aa06e20f1be628186f0c2dcec09ea0009eb69778
Author: Mario Limonciello <mario.limonciello@amd.com>
Date:   Wed Sep 8 16:41:46 2021 -0500

    x86/ACPI: Don't add CPUs that are not online capable

    A number of systems are showing "hotplug capable" CPUs when they
    are not really hotpluggable.  This is because the MADT has extra
    CPU entries to support different CPUs that may be inserted into
    the socket with different numbers of cores.

    Starting with ACPI 6.3 the spec has an Online Capable bit in the
    MADT used to determine whether or not a CPU is hotplug capable
    when the enabled bit is not set.

    Link: https://uefi.org/htmlspecs/ACPI_Spec_6_4_html/05_ACPI_Software_Programming_Model/ACPI_Software_Programming_Model.html?#local-apic-flags
    Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
    Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2022-07-01 18:45:05 +01:00
dependabot[bot]
5c22f02f32 build: bump clap from 3.2.7 to 3.2.8
Bumps [clap](https://github.com/clap-rs/clap) from 3.2.7 to 3.2.8.
- [Release notes](https://github.com/clap-rs/clap/releases)
- [Changelog](https://github.com/clap-rs/clap/blob/master/CHANGELOG.md)
- [Commits](https://github.com/clap-rs/clap/compare/v3.2.7...v3.2.8)

---
updated-dependencies:
- dependency-name: clap
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
2022-06-30 22:07:39 +00:00
Rob Bradford
adf5881757 build: #[allow(clippy::significant_drop_in_scrutinee) in some crates
This check is new in the beta version of clippy and exists to avoid
potential deadlocks by highlighting when the test in an if or for loop
is something that holds a lock. In many cases we would need to make
significant refactorings to be able to pass this check so disable in the
affected crates.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2022-06-30 20:50:45 +01:00
Rob Bradford
b57d7b258d build: Fix beta clippy issue (needless_return)
warning: unneeded `return` statement
   --> pci/src/vfio_user.rs:627:13
    |
627 | /             return Err(std::io::Error::new(
628 | |                 std::io::ErrorKind::Other,
629 | |                 format!("Region not found for 0x{:x}", gpa),
630 | |             ));
    | |_______________^
    |
    = note: `#[warn(clippy::needless_return)]` on by default
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
help: remove `return`
    |
627 ~             Err(std::io::Error::new(
628 +                 std::io::ErrorKind::Other,
629 +                 format!("Region not found for 0x{:x}", gpa),
630 +             ))
    |

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2022-06-30 20:50:45 +01:00
Rob Bradford
2716bc3311 build: Fix beta clippy issue (derive_partial_eq_without_eq)
warning: you are deriving `PartialEq` and can implement `Eq`
  --> vmm/src/serial_manager.rs:59:30
   |
59 | #[derive(Debug, Clone, Copy, PartialEq)]
   |                              ^^^^^^^^^ help: consider deriving `Eq` as well: `PartialEq, Eq`
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#derive_partial_eq_without_eq

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2022-06-30 20:50:45 +01:00
dependabot[bot]
3d66e86604 build: bump serde_json from 1.0.81 to 1.0.82
Bumps [serde_json](https://github.com/serde-rs/json) from 1.0.81 to 1.0.82.
- [Release notes](https://github.com/serde-rs/json/releases)
- [Commits](https://github.com/serde-rs/json/compare/v1.0.81...v1.0.82)

---
updated-dependencies:
- dependency-name: serde_json
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
2022-06-30 17:56:47 +01:00
dependabot[bot]
54fe5fb9f5 build: bump clap from 3.2.6 to 3.2.7
Bumps [clap](https://github.com/clap-rs/clap) from 3.2.6 to 3.2.7.
- [Release notes](https://github.com/clap-rs/clap/releases)
- [Changelog](https://github.com/clap-rs/clap/blob/master/CHANGELOG.md)
- [Commits](https://github.com/clap-rs/clap/compare/v3.2.6...v3.2.7)

---
updated-dependencies:
- dependency-name: clap
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
2022-06-29 00:26:54 +00:00
Rob Bradford
2e664dca64 vmm: Always reset the console mode on VMM exit
Tested:

1. SIGTERM based
2. VM shutdown/poweroff
3. Injected VM boot failure after calling Vm::setup_tty()

Fixes: #4248

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2022-06-28 16:45:27 +01:00
Rob Bradford
65ec6631fb vmm: cpu: Store the vCPU snapshots in ascending order
The snapshots are stored in a BTree which is ordered however as the ids
are strings lexical ordering places "11" ahead of "2". So encode the
vCPU id with zero padding so it is lexically sorted.

This fixes issues with CPU restore on aarch64.

See: #4239

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2022-06-27 16:20:57 +01:00
dependabot[bot]
a1a016526f build: bump clap from 3.2.5 to 3.2.6
Bumps [clap](https://github.com/clap-rs/clap) from 3.2.5 to 3.2.6.
- [Release notes](https://github.com/clap-rs/clap/releases)
- [Changelog](https://github.com/clap-rs/clap/blob/master/CHANGELOG.md)
- [Commits](https://github.com/clap-rs/clap/compare/v3.2.5...v3.2.6)

---
updated-dependencies:
- dependency-name: clap
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
2022-06-22 04:35:13 +00:00
dependabot[bot]
eb55d0809e build: bump anyhow from 1.0.57 to 1.0.58
Bumps [anyhow](https://github.com/dtolnay/anyhow) from 1.0.57 to 1.0.58.
- [Release notes](https://github.com/dtolnay/anyhow/releases)
- [Commits](https://github.com/dtolnay/anyhow/compare/1.0.57...1.0.58)

---
updated-dependencies:
- dependency-name: anyhow
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
2022-06-21 00:46:25 +00:00
Wei Liu
bccd7c7e48 vmm: drop Sync+Send bounds for EndpointHandler
Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-06-20 23:28:57 +01:00
Wei Liu
8fa1098629 vmm: switch from lazy_static to once_cell
Once_cell does not require using macro and is slated to become part of
Rust std at some point.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-06-20 16:03:07 +01:00
Sebastien Boeuf
335a4e1cc0 vmm: api: Expose kvm_hyperv parameter in OpenAPI description
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2022-06-17 15:11:53 +01:00
dependabot[bot]
3800212def build: bump clap from 3.2.4 to 3.2.5
Bumps [clap](https://github.com/clap-rs/clap) from 3.2.4 to 3.2.5.
- [Release notes](https://github.com/clap-rs/clap/releases)
- [Changelog](https://github.com/clap-rs/clap/blob/master/CHANGELOG.md)
- [Commits](https://github.com/clap-rs/clap/compare/v3.2.4...v3.2.5)

---
updated-dependencies:
- dependency-name: clap
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
2022-06-16 10:09:02 +00:00
dependabot[bot]
ed31ca9041 build: bump gdbstub_arch from 0.2.2 to 0.2.3
Bumps [gdbstub_arch](https://github.com/daniel5151/gdbstub) from 0.2.2 to 0.2.3.
- [Release notes](https://github.com/daniel5151/gdbstub/releases)
- [Changelog](https://github.com/daniel5151/gdbstub/blob/master/CHANGELOG.md)
- [Commits](https://github.com/daniel5151/gdbstub/commits)

---
updated-dependencies:
- dependency-name: gdbstub_arch
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
2022-06-15 00:59:21 +00:00
dependabot[bot]
742ca68070 build: bump clap from 3.1.18 to 3.2.4
Bumps [clap](https://github.com/clap-rs/clap) from 3.1.18 to 3.2.4.
- [Release notes](https://github.com/clap-rs/clap/releases)
- [Changelog](https://github.com/clap-rs/clap/blob/master/CHANGELOG.md)
- [Commits](https://github.com/clap-rs/clap/compare/v3.1.18...v3.2.4)

---
updated-dependencies:
- dependency-name: clap
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
2022-06-14 23:58:30 +00:00
dependabot[bot]
1f3321c50e build: bump gdbstub from 0.6.1 to 0.6.2
Bumps [gdbstub](https://github.com/daniel5151/gdbstub) from 0.6.1 to 0.6.2.
- [Release notes](https://github.com/daniel5151/gdbstub/releases)
- [Changelog](https://github.com/daniel5151/gdbstub/blob/master/CHANGELOG.md)
- [Commits](https://github.com/daniel5151/gdbstub/compare/0.6.1...0.6.2)

---
updated-dependencies:
- dependency-name: gdbstub
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
2022-06-14 08:09:13 +00:00
dependabot[bot]
41ac48d332 build: bump uuid from 1.1.1 to 1.1.2
Bumps [uuid](https://github.com/uuid-rs/uuid) from 1.1.1 to 1.1.2.
- [Release notes](https://github.com/uuid-rs/uuid/releases)
- [Commits](https://github.com/uuid-rs/uuid/compare/1.1.1...1.1.2)

---
updated-dependencies:
- dependency-name: uuid
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
2022-06-11 00:25:45 +00:00
Sebastien Boeuf
81ba70a497 pci, vmm: Defer mapping VFIO MMIO regions on restore
When restoring a VM, the restore codepath will take care of mapping the
MMIO regions based on the information from the snapshot, rather than
having the mapping being performed during device creation.

When the device is created, information such as which BARs contain the
MSI-X tables are missing, preventing to perform the mapping of the MMIO
regions.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2022-06-09 09:19:58 +02:00
Sebastien Boeuf
7df7061610 pci, vmm: Add migratable support to vfio-user devices
Based on recent changes to VfioUserPciDevice, the vfio-user devices can
now be migrated.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2022-06-09 09:19:58 +02:00