Commit Graph

458 Commits

Author SHA1 Message Date
dependabot[bot]
46953db3ca build: bump serde_json from 1.0.70 to 1.0.71
Bumps [serde_json](https://github.com/serde-rs/json) from 1.0.70 to 1.0.71.
- [Release notes](https://github.com/serde-rs/json/releases)
- [Commits](https://github.com/serde-rs/json/compare/v1.0.70...v1.0.71)

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

Signed-off-by: dependabot[bot] <support@github.com>
2021-11-18 00:37:08 +00:00
Wei Liu
6221b6f8a1 hypervisor: aarch64: move a comment to where it should be
No functional change.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2021-11-16 10:13:09 +08:00
Wei Liu
57cc8bc6fe hypervisor: aarch64: remove undefined behaviour in offset__of
The variable tmp was never initialized. Calling assume_init when the
content is not yet initialized causes immediate undefined behaviour.

We also cannot create any intermediate references because they will be
subject to the same requirements for references -- the referred object
must be valid.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2021-11-16 10:13:09 +08:00
dependabot[bot]
608ad4894f build: bump serde_json from 1.0.69 to 1.0.70
Bumps [serde_json](https://github.com/serde-rs/json) from 1.0.69 to 1.0.70.
- [Release notes](https://github.com/serde-rs/json/releases)
- [Commits](https://github.com/serde-rs/json/compare/v1.0.69...v1.0.70)

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

Signed-off-by: dependabot[bot] <support@github.com>
2021-11-16 00:49:38 +00:00
Sebastien Boeuf
611e71826d deps: Downgrade anyhow
Because anyhow version 1.0.46 has been yanked, let's move back to the
previous version 1.0.45.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-11-10 09:43:12 +00:00
dependabot[bot]
a362e85539 build: bump anyhow from 1.0.45 to 1.0.46
Bumps [anyhow](https://github.com/dtolnay/anyhow) from 1.0.45 to 1.0.46.
- [Release notes](https://github.com/dtolnay/anyhow/releases)
- [Commits](https://github.com/dtolnay/anyhow/compare/1.0.45...1.0.46)

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

Signed-off-by: dependabot[bot] <support@github.com>
2021-11-08 23:34:03 +00:00
dependabot[bot]
b4f3e1c2a1 build: bump libc from 0.2.106 to 0.2.107
Bumps [libc](https://github.com/rust-lang/libc) from 0.2.106 to 0.2.107.
- [Release notes](https://github.com/rust-lang/libc/releases)
- [Commits](https://github.com/rust-lang/libc/compare/0.2.106...0.2.107)

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

Signed-off-by: dependabot[bot] <support@github.com>
2021-11-08 10:01:40 +00:00
dependabot[bot]
cc1db2ea13 build: bump serde_json from 1.0.68 to 1.0.69
Bumps [serde_json](https://github.com/serde-rs/json) from 1.0.68 to 1.0.69.
- [Release notes](https://github.com/serde-rs/json/releases)
- [Commits](https://github.com/serde-rs/json/compare/v1.0.68...v1.0.69)

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

Signed-off-by: dependabot[bot] <support@github.com>
2021-11-06 16:37:23 +00:00
dependabot[bot]
960c7027c7 build: bump anyhow from 1.0.44 to 1.0.45
Bumps [anyhow](https://github.com/dtolnay/anyhow) from 1.0.44 to 1.0.45.
- [Release notes](https://github.com/dtolnay/anyhow/releases)
- [Commits](https://github.com/dtolnay/anyhow/compare/1.0.44...1.0.45)

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

Signed-off-by: dependabot[bot] <support@github.com>
2021-11-03 09:43:57 +00:00
dependabot[bot]
21706b02b8 build: bump libc from 0.2.105 to 0.2.106
Bumps [libc](https://github.com/rust-lang/libc) from 0.2.105 to 0.2.106.
- [Release notes](https://github.com/rust-lang/libc/releases)
- [Commits](https://github.com/rust-lang/libc/compare/0.2.105...0.2.106)

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

Signed-off-by: dependabot[bot] <support@github.com>
2021-11-02 06:30:25 +00:00
dependabot[bot]
b5d5ffa969 build: bump libc from 0.2.104 to 0.2.105
Bumps [libc](https://github.com/rust-lang/libc) from 0.2.104 to 0.2.105.
- [Release notes](https://github.com/rust-lang/libc/releases)
- [Commits](https://github.com/rust-lang/libc/compare/0.2.104...0.2.105)

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

Signed-off-by: dependabot[bot] <support@github.com>
2021-10-26 01:32:06 +00:00
Sebastien Boeuf
7f0e7d19a6 Revert "build: bump vm-memory from 0.6.0 to 0.7.0"
This was causing some issues because of the use of 2 different versions
for the vm-memmory crate. We'll wait for all dependencies to be properly
resolved before we move to 0.7.0.

This reverts commit 76b6c62d07.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-10-22 11:09:36 +02:00
Bo Chen
76b6c62d07 build: bump vm-memory from 0.6.0 to 0.7.0
Signed-off-by: Bo Chen <chen.bo@intel.com>
2021-10-21 06:19:02 -07:00
Rob Bradford
70f9fea1c3 hypervisor: aarch64: Use assert!() rather than if+panic
As identified by the new beta clippy.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-10-19 19:42:36 +01:00
Rob Bradford
2f57d1c3f9 hypervisor: mshv: Use assert!() rather than if+panic
As identified by the new beta clippy.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-10-19 19:42:36 +01:00
Rob Bradford
7d7577007a hypervisor: emulator: Print out all exception details
Print out all the details from an emulator exception.

As identified by the new beta clippy.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-10-19 19:42:36 +01:00
dependabot[bot]
feed0efc60 build: bump libc from 0.2.103 to 0.2.104
Bumps [libc](https://github.com/rust-lang/libc) from 0.2.103 to 0.2.104.
- [Release notes](https://github.com/rust-lang/libc/releases)
- [Commits](https://github.com/rust-lang/libc/compare/0.2.103...0.2.104)

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

Signed-off-by: dependabot[bot] <support@github.com>
2021-10-19 11:06:10 +02:00
Muminul Islam
c3d6aceed1 hypervisor: Add Misc register to Save/Restore state for MSHV
Hypercall register needs to be saved and restored for
TLB flush and IPI synthetic features enablement.
Enabling these two synthetic features improves
guest performance.

Signed-off-by: Muminul Islam <muislam@microsoft.com>
2021-10-15 14:54:02 -07:00
dependabot[bot]
610d694f1d build: bump thiserror from 1.0.29 to 1.0.30
Bumps [thiserror](https://github.com/dtolnay/thiserror) from 1.0.29 to 1.0.30.
- [Release notes](https://github.com/dtolnay/thiserror/releases)
- [Commits](https://github.com/dtolnay/thiserror/compare/1.0.29...1.0.30)

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

Signed-off-by: dependabot[bot] <support@github.com>
2021-10-12 09:45:31 +02:00
Sebastien Boeuf
76a036e96d hypervisor: kvm: Add missing MSR related to Hyper-V
When the synthetic interrupt controller is enabled, an extra set of MSRs
must be stored in case of migration. There was one MSR missing in the
list, HV_X64_MSR_SINT14 corresponding to the 15th interrupt source from
the synthetic interrupt controller.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-10-11 15:30:13 +02:00
dependabot[bot]
2f3502eacc build: bump iced-x86 from 1.14.0 to 1.15.0
Bumps [iced-x86](https://github.com/icedland/iced) from 1.14.0 to 1.15.0.
- [Release notes](https://github.com/icedland/iced/releases)
- [Commits](https://github.com/icedland/iced/compare/v1.14.0...v1.15.0)

---
updated-dependencies:
- dependency-name: iced-x86
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
2021-10-08 07:33:42 +00:00
dependabot[bot]
eda0dc20d3 build: bump libc from 0.2.102 to 0.2.103
Bumps [libc](https://github.com/rust-lang/libc) from 0.2.102 to 0.2.103.
- [Release notes](https://github.com/rust-lang/libc/releases)
- [Commits](https://github.com/rust-lang/libc/compare/0.2.102...0.2.103)

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

Signed-off-by: dependabot[bot] <support@github.com>
2021-09-28 10:45:35 +00:00
Wei Liu
86afa38c64 hypervisor: mshv: drop one unsafe in code
The binding already provides a default() method which does the same
thing.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2021-09-20 17:22:31 +02:00
dependabot[bot]
f67b3f79ea build: bump vmm-sys-util from 0.8.0 to 0.9.0
Bumps [vmm-sys-util](https://github.com/rust-vmm/vmm-sys-util) from 0.8.0 to 0.9.0.
- [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/v0.8.0...v0.9.0)

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

This needed a bunch of manual updates as well, including vfio-ioctls and
vhost crates. The vhost crate is being patched with the latest version
from rust-vmm because the version 0.1.0 on crates.io doesn't include the
patches we need yet.

Signed-off-by: dependabot[bot] <support@github.com>
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-09-16 14:01:19 +01:00
Sebastien Boeuf
02173f42fc deps: Update kvm-ioctls to 0.10.0
Updating kvm-ioctls from 0.9.0 to 0.10.0 now that Cloud Hypervisor
relies on kvm-bindings 0.5.0.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-09-16 12:53:05 +01:00
dependabot[bot]
c1e896dddb build: bump libc from 0.2.101 to 0.2.102
Bumps [libc](https://github.com/rust-lang/libc) from 0.2.101 to 0.2.102.
- [Release notes](https://github.com/rust-lang/libc/releases)
- [Commits](https://github.com/rust-lang/libc/compare/0.2.101...0.2.102)

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

Signed-off-by: dependabot[bot] <support@github.com>
2021-09-15 17:23:46 +00:00
Sebastien Boeuf
bcdac10149 deps: Bump kvm-bindings to v0.5.0
Update the kvm-bindings dependency so that Cloud Hypervisor now depends
on the version 0.5.0, which is based on Linux kernel v5.13.0. We still
have to rely on a forked version to be able to serialize all the KVM
structures we need.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-09-15 16:20:17 +01:00
dependabot[bot]
8836715c2d build: bump serde_json from 1.0.67 to 1.0.68
Bumps [serde_json](https://github.com/serde-rs/json) from 1.0.67 to 1.0.68.
- [Release notes](https://github.com/serde-rs/json/releases)
- [Commits](https://github.com/serde-rs/json/compare/v1.0.67...v1.0.68)

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

Signed-off-by: dependabot[bot] <support@github.com>
2021-09-15 00:06:23 +00:00
dependabot[bot]
f3778a7fc7 build: bump anyhow from 1.0.43 to 1.0.44
Bumps [anyhow](https://github.com/dtolnay/anyhow) from 1.0.43 to 1.0.44.
- [Release notes](https://github.com/dtolnay/anyhow/releases)
- [Commits](https://github.com/dtolnay/anyhow/compare/1.0.43...1.0.44)

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

Signed-off-by: dependabot[bot] <support@github.com>
2021-09-14 00:22:00 +00:00
Wei Liu
9c5b404415 vmm: MSHV now supports VFIO-based device passthrough
Drop a few feature gates and adjust code a bit.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2021-09-07 15:17:08 +01:00
Wei Liu
6e9d3eccd6 hypervisor: implement devicefd management for MSHV
Signed-off-by: Wei Liu <liuwe@microsoft.com>
2021-09-07 15:17:08 +01:00
dependabot[bot]
a20041ba68 build: bump thiserror from 1.0.28 to 1.0.29
Bumps [thiserror](https://github.com/dtolnay/thiserror) from 1.0.28 to 1.0.29.
- [Release notes](https://github.com/dtolnay/thiserror/releases)
- [Commits](https://github.com/dtolnay/thiserror/compare/1.0.28...1.0.29)

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

Signed-off-by: dependabot[bot] <support@github.com>
2021-09-07 08:35:50 +00:00
Alyssa Ross
9a634f07cb build: update Cargo for rust-vmm branch renames
The rust-vmm crates we're pulling from git have renamed their main
branches.  We need to update the branch names we're giving to Cargo,
or people who don't have these dependencies cached will get errors
like this when trying to build:

    error: failed to get `vm-fdt` as a dependency of package `arch v0.1.0 (/home/src/cloud-hypervisor/arch)`

    Caused by:
      failed to load source for dependency `vm-fdt`

    Caused by:
      Unable to update https://github.com/rust-vmm/vm-fdt?branch=master#031572a6

    Caused by:
      object not found - no match for id (031572a6edc2f566a7278f1e17088fc5308d27ab); class=Odb (9); code=NotFound (-3)

Signed-off-by: Alyssa Ross <hi@alyssa.is>
2021-09-02 10:38:25 +01:00
Henry Wang
d74a219add hypervisor: Remove useless check when saving Arm SystemRegs
Signed-off-by: Henry Wang <Henry.Wang@arm.com>
2021-08-31 09:53:57 +02:00
Jiaqi Gao
a90260ffb6 hypervisor: kvm: Update TDX command INIT_VM
Definition of kvm_tdx_init_vm used by INIT_VM has been updated in latest
kernel, needing an update on the Cloud Hypervisor side as well.

Update structure TdxInitVm to fit this change and avoid -EINVAL to be
returned by the kernel.

Signed-off-by: Jiaqi Gao <jiaqi.gao@intel.com>
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-08-30 10:24:37 -07:00
dependabot[bot]
8841e63e2d build: bump thiserror from 1.0.26 to 1.0.28
Bumps [thiserror](https://github.com/dtolnay/thiserror) from 1.0.26 to 1.0.28.
- [Release notes](https://github.com/dtolnay/thiserror/releases)
- [Commits](https://github.com/dtolnay/thiserror/compare/1.0.26...1.0.28)

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

Signed-off-by: dependabot[bot] <support@github.com>
2021-08-30 06:02:02 +00:00
dependabot[bot]
e877718b29 build: bump serde from 1.0.129 to 1.0.130
Bumps [serde](https://github.com/serde-rs/serde) from 1.0.129 to 1.0.130.
- [Release notes](https://github.com/serde-rs/serde/releases)
- [Commits](https://github.com/serde-rs/serde/compare/v1.0.129...v1.0.130)

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

Signed-off-by: dependabot[bot] <support@github.com>
2021-08-30 05:23:16 +00:00
dependabot[bot]
b0d8b50b36 build: bump serde_derive from 1.0.129 to 1.0.130
Bumps [serde_derive](https://github.com/serde-rs/serde) from 1.0.129 to 1.0.130.
- [Release notes](https://github.com/serde-rs/serde/releases)
- [Commits](https://github.com/serde-rs/serde/compare/v1.0.129...v1.0.130)

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

Signed-off-by: dependabot[bot] <support@github.com>
2021-08-30 00:23:14 +00:00
dependabot[bot]
2349b7e753 build: bump serde_json from 1.0.66 to 1.0.67
Bumps [serde_json](https://github.com/serde-rs/json) from 1.0.66 to 1.0.67.
- [Release notes](https://github.com/serde-rs/json/releases)
- [Commits](https://github.com/serde-rs/json/compare/v1.0.66...v1.0.67)

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

Signed-off-by: dependabot[bot] <support@github.com>
2021-08-29 23:28:14 +00:00
dependabot[bot]
f840335922 build: bump libc from 0.2.100 to 0.2.101
Bumps [libc](https://github.com/rust-lang/libc) from 0.2.100 to 0.2.101.
- [Release notes](https://github.com/rust-lang/libc/releases)
- [Commits](https://github.com/rust-lang/libc/compare/0.2.100...0.2.101)

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

Signed-off-by: dependabot[bot] <support@github.com>
2021-08-26 05:11:06 +00:00
dependabot[bot]
8f6a5f979d build: bump serde from 1.0.127 to 1.0.129
Bumps [serde](https://github.com/serde-rs/serde) from 1.0.127 to 1.0.129.
- [Release notes](https://github.com/serde-rs/serde/releases)
- [Commits](https://github.com/serde-rs/serde/compare/v1.0.127...v1.0.129)

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

Signed-off-by: dependabot[bot] <support@github.com>
2021-08-24 07:16:49 +00:00
dependabot[bot]
b8b16c6eec build: bump serde_derive from 1.0.127 to 1.0.129
Bumps [serde_derive](https://github.com/serde-rs/serde) from 1.0.127 to 1.0.129.
- [Release notes](https://github.com/serde-rs/serde/releases)
- [Commits](https://github.com/serde-rs/serde/compare/v1.0.127...v1.0.129)

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

Signed-off-by: dependabot[bot] <support@github.com>
2021-08-24 06:50:04 +00:00
dependabot[bot]
a969d5016c build: bump libc from 0.2.99 to 0.2.100
Bumps [libc](https://github.com/rust-lang/libc) from 0.2.99 to 0.2.100.
- [Release notes](https://github.com/rust-lang/libc/releases)
- [Commits](https://github.com/rust-lang/libc/compare/0.2.99...0.2.100)

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

Signed-off-by: dependabot[bot] <support@github.com>
2021-08-24 05:53:20 +00:00
dependabot[bot]
2a470d9a30 build: bump iced-x86 from 1.13.0 to 1.14.0
Bumps [iced-x86](https://github.com/icedland/iced) from 1.13.0 to 1.14.0.
- [Release notes](https://github.com/icedland/iced/releases)
- [Commits](https://github.com/icedland/iced/compare/v1.13.0...v1.14.0)

---
updated-dependencies:
- dependency-name: iced-x86
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
2021-08-20 08:18:47 +00:00
dependabot[bot]
86b2c17135 build: bump anyhow from 1.0.42 to 1.0.43
Bumps [anyhow](https://github.com/dtolnay/anyhow) from 1.0.42 to 1.0.43.
- [Release notes](https://github.com/dtolnay/anyhow/releases)
- [Commits](https://github.com/dtolnay/anyhow/compare/1.0.42...1.0.43)

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

Signed-off-by: dependabot[bot] <support@github.com>
2021-08-17 00:32:44 +00:00
Rob Bradford
77e147f333 build: Bump dependencies
This has the side effect of also removing the vm-memory 0.5.0
dependency.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-08-10 15:24:28 +01:00
Rob Bradford
f7f2f25a57 build: Use fixed versions in Cargo.toml files
This doesn't really affect the build as we ship a Cargo.lock with fixed
versions in. However for clarity it makes sense to use fixed versions
throughout and let dependabot update them.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-08-06 12:11:39 +02:00
Rob Bradford
b4f887ea80 build: Move from patched vm-memory version to released version
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-08-06 10:08:58 +01:00
Muminul Islam
504ccc32a0 hypervisor: Use MSHV crates from rust-vmm
Moving the MSHV crate form Cloud Hypervisor to rust-vmm
is done. This patch update the MSHV referent to rust-vmm

Signed-off-by: Muminul Islam <muislam@microsoft.com>
2021-08-04 09:26:04 +02:00
Muminul Islam
81895b9b40 hypervisor: Implement start/stop_dirty_log for MSHV
This patch modify the existing live migration code
to support MSHV. Adds couple of new functions to enable
and disable dirty page tracking. Add missing IOCTL
to the seccomp rules for live migration.
Adds necessary flags for MSHV.
This changes don't affect KVM functionality at all.

In order to get better performance it is good to
enable dirty page tracking when we start live migration
and disable it when the migration is done.

Signed-off-by: Muminul Islam <muislam@microsoft.com>
2021-07-29 16:29:53 +01:00
Muminul Islam
6492496cc2 hypervisor: Keep track of dirty memory slots for MSHV
Keep the memory slots for enabling/disabling
dirty page tracking on MSHV.

Signed-off-by: Muminul Islam <muislam@microsoft.com>
2021-07-29 16:29:53 +01:00
Muminul Islam
fdecba6958 hypervisor: MSHV needs gpa to retrieve dirty logs
Right now, get_dirty_log API has two parameters,
slot and memory_size.
MSHV needs gpa to retrieve the page states. GPA is
needed as MSHV returns the state base on PFN.

Signed-off-by: Muminul Islam <muislam@microsoft.com>
2021-07-29 16:29:53 +01:00
Sebastien Boeuf
dcc646f5b1 clippy: Fix redundant allocations
With the new beta version, clippy complains about redundant allocation
when using Arc<Box<dyn T>>, and suggests replacing it simply with
Arc<dyn T>.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-07-29 13:28:57 +02:00
Bo Chen
e7c9954dc1 hypervisor, vmm: Abstract the interfaces to start/stop dirty log
Following KVM interfaces, the `hypervisor` crate now provides interfaces
to start/stop the dirty pages logging on a per region basis, and asks
its users (e.g. the `vmm` crate) to iterate over the regions that needs
dirty pages log. MSHV only has a global control to start/stop dirty
pages log on all regions at once.

This patch refactors related APIs from the `hypervisor` crate to provide
a global control to start/stop dirty pages log (following MSHV's
behaviors), and keeps tracking the regions need dirty pages log for
KVM. It avoids leaking hypervisor-specific behaviors out of the
`hypervisor` crate.

Signed-off-by: Bo Chen <chen.bo@intel.com>
2021-07-28 09:08:32 -07:00
Bo Chen
5e0d498582 hypervisor, vmm: Add dynamic control of logging dirty pages
This patch extends slightly the current live-migration code path with
the ability to dynamically start and stop logging dirty-pages, which
relies on two new methods added to the `hypervisor::vm::Vm` Trait. This
patch also contains a complete implementation of the two new methods
based on `kvm` and placeholders for `mshv` in the `hypervisor` crate.

Fixes: #2858

Signed-off-by: Bo Chen <chen.bo@intel.com>
2021-07-26 09:19:35 -07:00
dependabot[bot]
50e0869a17 build: bump env_logger from 0.8.4 to 0.9.0
Bumps [env_logger](https://github.com/env-logger-rs/env_logger) from 0.8.4 to 0.9.0.
- [Release notes](https://github.com/env-logger-rs/env_logger/releases)
- [Changelog](https://github.com/env-logger-rs/env_logger/blob/main/CHANGELOG.md)
- [Commits](https://github.com/env-logger-rs/env_logger/compare/v0.8.4...v0.9.0)

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

Signed-off-by: dependabot[bot] <support@github.com>
2021-07-15 00:44:49 +00:00
dependabot[bot]
3229fcc900 build: bump iced-x86 from 1.12.0 to 1.13.0
Bumps [iced-x86](https://github.com/icedland/iced) from 1.12.0 to 1.13.0.
- [Release notes](https://github.com/icedland/iced/releases)
- [Commits](https://github.com/icedland/iced/compare/v1.12.0...v1.13.0)

---
updated-dependencies:
- dependency-name: iced-x86
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
2021-07-09 07:21:42 +00:00
dependabot[bot]
5effa20a5b build: bump libc from 0.2.97 to 0.2.98
Bumps [libc](https://github.com/rust-lang/libc) from 0.2.97 to 0.2.98.
- [Release notes](https://github.com/rust-lang/libc/releases)
- [Commits](https://github.com/rust-lang/libc/compare/0.2.97...0.2.98)

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

Signed-off-by: dependabot[bot] <support@github.com>
2021-07-08 04:15:16 +00:00
Sebastien Boeuf
9ec0c981f8 hypervisor: Add enable_sgx_attribute to the Vm API
We need a dedicated function to enable the SGX attribute capability
through the Hypervisor abstraction.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-07-07 14:56:38 +02:00
Wei Liu
1f2915bff0 vmm: hypervisor: split set_user_memory_region to two functions
Previously the same function was used to both create and remove regions.
This worked on KVM because it uses size 0 to indicate removal.

MSHV has two calls -- one for creation and one for removal. It also
requires having the size field available because it is not slot based.

Split set_user_memory_region to {create/remove}_user_memory_region. For
KVM they still use set_user_memory_region underneath, but for MSHV they
map to different functions.

This fixes user memory region removal on MSHV.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2021-07-05 09:45:45 +02:00
Muminul Islam
e214bb9eed hypervisor: implement Display for MSHV VcpuState
This functionality is useful for Snapshot/Restore debugging.

Signed-off-by: Muminul Islam <muislam@microsoft.com>
2021-06-24 09:02:36 -07:00
Muminul Islam
5cd82cb2e2 hypervisor: implement get_suspend_regs for MSHV vcpu trait
This vcpu API is necessary for MSHV related debugging.
These two registers controls the vcpu_run in the
/dev/mshv driver code.

Signed-off-by: Muminul Islam <muislam@microsoft.com>
2021-06-24 09:02:36 -07:00
Bo Chen
5825ab2dd4 clippy: Address the issue 'needless-borrow'
Issue from beta verion of clippy:

Error:    --> vm-virtio/src/queue.rs:700:59
    |
700 |             if let Some(used_event) = self.get_used_event(&mem) {
    |                                                           ^^^^ help: change this to: `mem`
    |
    = note: `-D clippy::needless-borrow` implied by `-D warnings`
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow

Signed-off-by: Bo Chen <chen.bo@intel.com>
2021-06-24 08:55:43 +02:00
Muminul Islam
5432cbfaad hypervisor: Set MTRRdefType in MSHV guest initialization to enable cpu caching
Initialize MTRR defType register the same way the KVM code does - WB caching by default.
Tested with latest mshv code.

Without this patch, these lines are present in guest serial log:
[ 0.000032] x86/PAT: MTRRs disabled, skipping PAT initialization too.
[ 0.000036] CPU MTRRs all blank - virtualized system.
This indicates the guest is detecting the set MTRR.

Signed-off-by: Nuno Das Neves <nudasnev@microsoft.com>
Signed-off-by: Muminul Islam <muislam@microsoft.com>
2021-06-23 17:44:24 +01:00
Muminul Islam
652e30c97d hypervisor: Fix clippy error on MSHV
This patch addresses this issue https://github.com/rust-lang/rust-bindgen/pull/2064.
While we access field of packed struct the compiler can generate the
correct code to create a temporary variable to access the packed struct
field. Access withing {} ensures that.

Signed-off-by: Muminul Islam <muislam@microsoft.com>
2021-06-22 10:37:28 -07:00
Muminul Islam
49e061d15b hypervisor: Fix hv_translate_gva_result_code with correct value
Signed-off-by: Muminul Islam <muislam@microsoft.com>
2021-06-22 10:37:28 -07:00
dependabot[bot]
428c637506 build: bump libc from 0.2.96 to 0.2.97
Bumps [libc](https://github.com/rust-lang/libc) from 0.2.96 to 0.2.97.
- [Release notes](https://github.com/rust-lang/libc/releases)
- [Commits](https://github.com/rust-lang/libc/compare/0.2.96...0.2.97)

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

Signed-off-by: dependabot[bot] <support@github.com>
2021-06-14 09:50:38 +00:00
dependabot[bot]
251708b908 build: bump env_logger from 0.8.3 to 0.8.4
Bumps [env_logger](https://github.com/env-logger-rs/env_logger) from 0.8.3 to 0.8.4.
- [Release notes](https://github.com/env-logger-rs/env_logger/releases)
- [Changelog](https://github.com/env-logger-rs/env_logger/blob/main/CHANGELOG.md)
- [Commits](https://github.com/env-logger-rs/env_logger/compare/v0.8.3...v0.8.4)

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

Signed-off-by: dependabot[bot] <support@github.com>
2021-06-14 08:50:26 +00:00
dependabot[bot]
ee118152ff build: bump iced-x86 from 1.11.3 to 1.12.0
Bumps [iced-x86](https://github.com/icedland/iced) from 1.11.3 to 1.12.0.
- [Release notes](https://github.com/icedland/iced/releases)
- [Commits](https://github.com/icedland/iced/compare/v1.11.3...v1.12.0)

---
updated-dependencies:
- dependency-name: iced-x86
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
2021-06-11 07:04:46 +00:00
Henry Wang
2fe3586eba hypervisor: support AArch64 get_host_ipa_limit
Not all AArch64 platforms support IPAs up to 40 bits. Since the
kvm-ioctl crate now supports `get_host_ipa_limit` for AArch64,
when creating the VM, it is better to get the IPA size from the
host and use that to create the VM.

Signed-off-by: Henry Wang <Henry.Wang@arm.com>
2021-06-10 12:06:17 +02:00
Henry Wang
805cb303d5 hypervisor: Add get_host_ipa_limit for AArch64
This commit adds a helper `get_host_ipa_limit` to the AArch64
`KvmHypervisor` struct. This helper can be used to get the
`Host_IPA_Limit`, which is the maximum possible value for
IPA_Bits on the host and is dependent on the CPU capability
and the kernel configuration.

Signed-off-by: Henry Wang <Henry.Wang@arm.com>
2021-06-10 12:06:17 +02:00
dependabot[bot]
c866ccb3a1 build: bump libc from 0.2.95 to 0.2.96
Bumps [libc](https://github.com/rust-lang/libc) from 0.2.95 to 0.2.96.
- [Release notes](https://github.com/rust-lang/libc/releases)
- [Commits](https://github.com/rust-lang/libc/compare/0.2.95...0.2.96)

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

Signed-off-by: dependabot[bot] <support@github.com>
2021-06-09 07:27:37 +00:00
Wei Liu
c419d3286b hypervisor: emulator: emulate OR instruction
Signed-off-by: Wei Liu <liuwe@microsoft.com>
2021-06-07 11:54:57 -07:00
Wei Liu
d76743ed0b hypervisor: x86: make debug output more useful
The debug output should show the range of memory read from / written to.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2021-06-07 11:54:57 -07:00
Muminul Islam
c7b794a7c5 hypervisor: Fix MSHV set_xsave API call
MSHV set_xsave got changed to fix the Snapshot and restore issue.
This patch fixes the API call.

Signed-off-by: Muminul Islam <muislam@microsoft.com>
2021-06-03 08:30:50 +01:00
Rob Bradford
9f5325fd52 hypervisor: tdx: Unconditionally enable TDX debug
For now enable the TDX attribute for TDX debug.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-06-01 09:50:22 -07:00
dependabot[bot]
dd92715ed2 build: Bump libc from 0.2.94 to 0.2.95
Bumps [libc](https://github.com/rust-lang/libc) from 0.2.94 to 0.2.95.
- [Release notes](https://github.com/rust-lang/libc/releases)
- [Commits](https://github.com/rust-lang/libc/compare/0.2.94...0.2.95)

Signed-off-by: dependabot[bot] <support@github.com>
2021-05-26 07:18:40 +00:00
Rob Bradford
84454f142d hypervisor: Remove panic from Hypervisor::check_required_extensions()
Remove the panic by replacing the .expect() with a cleaner error
handling.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-05-19 17:11:30 +02:00
Rob Bradford
a335cbb8d5 hypervisor: Unconditional build Hypervisor::create_vm_with_type()
Mark it as unreachable for now in the default implementation as this is
currently only used on tdx code path which is KVM only.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-05-19 17:11:30 +02:00
Rob Bradford
0cf9218d3f hypervisor, vmm: Add default Hypervisor::check_required_extensions()
This allows the removal of KVM specific compile time checks on this
function.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-05-19 17:11:30 +02:00
Rob Bradford
2439625785 hypervisor: Cleanup unused Hypervisor trait members
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-05-19 17:11:30 +02:00
dependabot[bot]
589f93da92 build: Bump kvm-ioctls from 0.8.0 to 0.9.0
Bumps [kvm-ioctls](https://github.com/rust-vmm/kvm-ioctls) from 0.8.0 to 0.9.0.
- [Release notes](https://github.com/rust-vmm/kvm-ioctls/releases)
- [Changelog](https://github.com/rust-vmm/kvm-ioctls/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rust-vmm/kvm-ioctls/compare/v0.8.0...v0.9.0)

Signed-off-by: dependabot[bot] <support@github.com>
2021-05-17 10:16:12 +02:00
Rob Bradford
496ceed1d0 misc: Remove unnecessary "extern crate"
Now all crates use edition = "2018" then the majority of the "extern
crate" statements can be removed. Only those for importing macros need
to remain.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-05-12 17:26:11 +02:00
Rob Bradford
28f383bae9 hypervisor: aarch64: Safer calculation of offset_of
Use a safer method for calculating struct member offsets.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-05-07 07:16:09 +08:00
dependabot-preview[bot]
1bad026377 build(deps): bump libc from 0.2.93 to 0.2.94
Bumps [libc](https://github.com/rust-lang/libc) from 0.2.93 to 0.2.94.
- [Release notes](https://github.com/rust-lang/libc/releases)
- [Commits](https://github.com/rust-lang/libc/compare/0.2.93...0.2.94)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2021-04-28 07:02:14 +00:00
dependabot-preview[bot]
23411d45ba build(deps): bump libc from 0.2.92 to 0.2.93
Bumps [libc](https://github.com/rust-lang/libc) from 0.2.92 to 0.2.93.
- [Release notes](https://github.com/rust-lang/libc/releases)
- [Commits](https://github.com/rust-lang/libc/compare/0.2.92...0.2.93)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2021-04-06 17:03:25 +00:00
dependabot-preview[bot]
b8311cac38 build(deps): bump libc from 0.2.91 to 0.2.92
Bumps [libc](https://github.com/rust-lang/libc) from 0.2.91 to 0.2.92.
- [Release notes](https://github.com/rust-lang/libc/releases)
- [Commits](https://github.com/rust-lang/libc/compare/0.2.91...0.2.92)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2021-03-30 12:09:56 +00:00
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
e294688904 hypervisor: Address Rust 1.51.0 clippy issue (from_over_into)
warning: an implementation of `From` is preferred since it gives you `Into<_>` for free where the reverse isn't true
  --> hypervisor/src/vm.rs:41:1
   |
41 | impl Into<u64> for DataMatch {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: `#[warn(clippy::from_over_into)]` on by default
   = help: consider to implement `From` instead
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#from_over_into

warning: 1 warning emitted

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-03-26 11:32:09 +00:00
Rob Bradford
0c27f69f1c hypervisor: Address Rust 1.51.0 clippy issue (upper_case_acroynms)
warning: name `TranslateGVA` contains a capitalized acronym
  --> hypervisor/src/arch/emulator/mod.rs:51:5
   |
51 |     TranslateGVA(#[source] anyhow::Error),
   |     ^^^^^^^^^^^^ help: consider making the acronym lowercase, except the initial letter: `TranslateGva`
   |
   = note: `#[warn(clippy::upper_case_acronyms)]` on by default
   = 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
Vineeth Pillai
68401e6e4a hypervisor:mshv: Support the move of MSI routing to kernel
Signed-off-by: Vineeth Pillai <viremana@linux.microsoft.com>
2021-03-23 11:06:13 +01:00
Vineeth Pillai
7fad74cb04 hypervisor: refactor vec_with_array_field function
refactor vec_with_array_field to common hypervisor code
so that mshv can also make use of it.

Signed-off-by: Vineeth Pillai <viremana@linux.microsoft.com>
2021-03-23 11:06:13 +01:00
dependabot-preview[bot]
e9793020c2 build(deps): bump libc from 0.2.90 to 0.2.91
Bumps [libc](https://github.com/rust-lang/libc) from 0.2.90 to 0.2.91.
- [Release notes](https://github.com/rust-lang/libc/releases)
- [Commits](https://github.com/rust-lang/libc/compare/0.2.90...0.2.91)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2021-03-23 06:56:04 +00:00
Sebastien Boeuf
d370ea585b deps: bump iced-x86 from 1.10.3 to 1.11.0
Bumps iced-x86 from 1.10.3 to 1.11.0.

Manual update of the code was needed since memory_displacement() was
deprecated and replaced with either memory_displacement32() or
memory_displacement64().

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-03-22 15:17:09 +00:00
dependabot-preview[bot]
e39924d45a build(deps): bump libc from 0.2.89 to 0.2.90
Bumps [libc](https://github.com/rust-lang/libc) from 0.2.89 to 0.2.90.
- [Release notes](https://github.com/rust-lang/libc/releases)
- [Commits](https://github.com/rust-lang/libc/compare/0.2.89...0.2.90)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2021-03-18 21:29:25 +00:00
dependabot-preview[bot]
c85fba0c43 build(deps): bump libc from 0.2.88 to 0.2.89
Bumps [libc](https://github.com/rust-lang/libc) from 0.2.88 to 0.2.89.
- [Release notes](https://github.com/rust-lang/libc/releases)
- [Commits](https://github.com/rust-lang/libc/compare/0.2.88...0.2.89)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2021-03-15 23:40:01 +00:00
Michael Zhao
afc83582be aarch64: Enable IRQ routing for legacy devices
On AArch64, interrupt controller (GIC) is emulated by KVM. VMM need to
set IRQ routing for devices, including legacy ones.

Before this commit, IRQ routing was only set for MSI. Legacy routing
entries of type KVM_IRQ_ROUTING_IRQCHIP were missing. That is way legacy
devices (like serial device ttyS0) does not work.

The setting of X86 IRQ routing entries are not impacted.

Signed-off-by: Michael Zhao <michael.zhao@arm.com>
2021-03-15 20:59:50 +08:00
Rob Bradford
1c54fc3ab7 hypervisor: Support creating a VM of a specified KVM type
This is necessary to support creating a TD VM.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-03-08 18:30:00 +00:00
Rob Bradford
f282cc001a tdx: Add abstraction to call TDX ioctls to hypervisor
Add API to the hypervisor interface and implement for KVM to allow the
special TDX KVM ioctls on the VM and vCPU FDs.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-03-08 18:30:00 +00:00
Rob Bradford
cf9e81c05a build: Update kvm-ioctls and kvm-bindings dependencies
These need to be updated together as the kvm-ioctls depends upon a
strictly newer version of kvm-bindings which requires a rebase in the CH
fork.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-03-08 14:52:30 +00:00
dependabot-preview[bot]
ccfa34d066 build(deps): bump libc from 0.2.87 to 0.2.88
Bumps [libc](https://github.com/rust-lang/libc) from 0.2.87 to 0.2.88.
- [Release notes](https://github.com/rust-lang/libc/releases)
- [Commits](https://github.com/rust-lang/libc/compare/0.2.87...0.2.88)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2021-03-05 18:39:37 +00:00
dependabot-preview[bot]
d433ae1656 build(deps): bump libc from 0.2.86 to 0.2.87
Bumps [libc](https://github.com/rust-lang/libc) from 0.2.86 to 0.2.87.
- [Release notes](https://github.com/rust-lang/libc/releases)
- [Commits](https://github.com/rust-lang/libc/compare/0.2.86...0.2.87)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2021-03-02 11:14:57 +00:00
Wei Liu
74565538ae hypervisor: mshv: hook up TranslateGVA hypercall
At this stage this is the bare minimum needed to make Windows server
2019 work on MSHV.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2021-03-02 07:08:36 +01:00
Wei Liu
030a86db17 hypervisor: mshv: simplify GVA to GPA cache
So far we've only had the need to emulate one instruction. There is no
need to use a HashMap when a simple tuple for the initial mapping will
do.

We can bring back the HashMap once more sophisticated use cases surface.

No functional change.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2021-03-01 17:50:47 +00:00
Wei Liu
3eb5b67dc3 hypervisor: mshv: make SoftTLB part of MshvEmulatorContext
This avoids code complexity down the line when we get around
implementing Windows support.

No functional change.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2021-03-01 17:50:47 +00:00
Rob Bradford
f8875acec2 misc: Bulk upgrade dependencies
In particular update for the vmm-sys-util upgrade and all the other
dependent packages. This requires an updated forked version of
kvm-bindings (due to updated vfio-ioctls) but allowed the removal of our
forked version of kvm-ioctls.

The changes to the API from kvm-ioctls and vmm-sys-util required some
other minor changes to the code.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-02-26 11:31:08 +00:00
Wei Liu
49214cf02b hypervisor: emulator: fix MOVZX
According to Intel's mnemonic (which is used by iced-x86) the first
argument is destination while the second is source.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2021-02-23 07:42:33 +01:00
Rob Bradford
32a2000ecc build: Only build the {kvm,mshv}-{ioctls,bindings} needed
This simplifies the Cloud Hypervisor dependency chain slightly.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-02-19 08:27:30 +01:00
Wei Liu
e22b6ec768 hypervisor: x86: emulate MOVS instruction
Signed-off-by: Wei Liu <liuwe@microsoft.com>
2021-02-17 09:36:19 +01:00
Wei Liu
b59243f6cf hypervisor: mshv: support reading and writing guest memory in emulator
We don't have an easy way to figure out if a GPA points to normal memory
or device memory, but the guest's normal memory regions shouldn't
overlap with device regions. We can simply try to do a normal memory
read / write, and proceed to do device memory read / write if that
fails.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2021-02-17 09:36:19 +01:00
Rob Bradford
07a09eda27 hypervisor: kvm: Remove whitespace from use statements
This allows cargo fmt to correctly order the statements.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-02-16 18:38:57 +01:00
Wei Liu
29881a2d6a hypervisor: mshv: explicitly skip a few IO ports
OVMF would use string IO on those ports. String IO has not been
implemented, so that leads to panics.

Skip them explicitly in MSHV. Leave a long-ish comment in code to
explain the situation. We should properly implement string IO once it
becomes feasible / necessary.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2021-02-16 10:04:58 +01:00
Rob Bradford
a330a1569a arch, arch_gen, hypervisor: Remove some unnecessary clippy attributes
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-02-15 18:03:27 +01:00
Wei Liu
cf6480f012 hypervisor: mshv: drop some clippy attributes
They were used to suppress warnings during development. At this stage
they aren't needed anymore.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2021-02-15 14:52:26 +01:00
dependabot-preview[bot]
f0b7a09a49 build(deps): bump env_logger from 0.8.2 to 0.8.3
Bumps [env_logger](https://github.com/env-logger-rs/env_logger) from 0.8.2 to 0.8.3.
- [Release notes](https://github.com/env-logger-rs/env_logger/releases)
- [Changelog](https://github.com/env-logger-rs/env_logger/blob/master/CHANGELOG.md)
- [Commits](https://github.com/env-logger-rs/env_logger/compare/v0.8.2...v0.8.3)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2021-02-12 08:15:55 +00:00
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
Wei Liu
aec0d309ee hypervisor: emulator: also set ES segment in MockVMM
Some instructions, such as MOVS, need a valid ES segment.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2021-02-10 11:31:03 +00:00
Wei Liu
5fc12862e6 hypervisor, vmm: minor changes to VmmOps
Swap the last two parameters of guest_mem_{read,write} to be consistent
with other read / write functions.

Use more descriptive parameter names.

No functional change.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2021-02-10 11:31:03 +00:00
Wei Liu
f4159ca016 hypervisor: emulator: drop useless set_ip calls
The instruction pointer is already pointing at the instruction being
emulated.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2021-02-10 11:31:03 +00:00
dependabot-preview[bot]
6d63018d9f build(deps): bump vm-memory from 0.4.0 to 0.5.0
Bumps [vm-memory](https://github.com/rust-vmm/vm-memory) from 0.4.0 to 0.5.0.
- [Release notes](https://github.com/rust-vmm/vm-memory/releases)
- [Changelog](https://github.com/rust-vmm/vm-memory/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rust-vmm/vm-memory/compare/v0.4.0...v0.5.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2021-02-10 11:30:05 +00:00
Rob Bradford
a6b839b35c build: Update to latest kvm-ioctls
Update the version of the fork pointed to which has been rebased on the
latest upstream.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2021-02-08 18:16:18 +00:00
dependabot-preview[bot]
aa3d5cfbfe build(deps): bump libc from 0.2.85 to 0.2.86
Bumps [libc](https://github.com/rust-lang/libc) from 0.2.85 to 0.2.86.
- [Release notes](https://github.com/rust-lang/libc/releases)
- [Commits](https://github.com/rust-lang/libc/compare/0.2.85...0.2.86)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2021-02-08 16:19:06 +00:00
Samuel Ortiz
eee218f1f5 hypervisor: emulator: Add MOVZX unit tests
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2021-02-03 14:11:18 +01:00
Samuel Ortiz
5ada3f59c8 hypervisor: emulator: Emulate MOVZX
MOV R/RM is a special case of MOVZX, so we generalize the mov_r_rm macro
to make it support both instructions.

Fixes: #2227

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2021-02-03 14:11:18 +01:00
dependabot-preview[bot]
89008a49cf build(deps): bump libc from 0.2.84 to 0.2.85
Bumps [libc](https://github.com/rust-lang/libc) from 0.2.84 to 0.2.85.
- [Release notes](https://github.com/rust-lang/libc/releases)
- [Commits](https://github.com/rust-lang/libc/compare/0.2.84...0.2.85)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2021-02-02 07:47:41 +00:00
dependabot-preview[bot]
1df952726a build(deps): bump libc from 0.2.83 to 0.2.84
Bumps [libc](https://github.com/rust-lang/libc) from 0.2.83 to 0.2.84.
- [Release notes](https://github.com/rust-lang/libc/releases)
- [Commits](https://github.com/rust-lang/libc/commits)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2021-01-29 06:21:38 +00:00
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
Vineeth Pillai
7659055eec mshv: Use in-kernel ioeventfd mechanism
Signed-off-by: Vineeth Pillai <viremana@linux.microsoft.com>
2021-01-25 21:20:29 +00:00
Vineeth Pillai
5209bd6120 mshv: Use in-kernel irqfd mechanism
Convert MshvIrqRoutingEntry functions to methods as well.

Signed-off-by: Vineeth Pillai <viremana@linux.microsoft.com>
2021-01-25 21:20:29 +00:00
Wei Liu
fd9972ecc5 hypervisor: fix exception vector numbers
According to Intel SDM, #DE should be 0 and #DB should be 1.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2021-01-25 16:39:08 +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
184baff355 hypervisor: kvm: aarch64: Use struct initialisation
error: field assignment outside of initializer for an instance created with Default::default()
Error:     --> hypervisor/src/kvm/mod.rs:1239:9
     |
1239 |         state.mp_state = self.get_mp_state()?;
     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
     |
     = note: `-D clippy::field-reassign-with-default` implied by `-D warnings`
note: consider initializing the variable with `kvm::aarch64::VcpuKvmState { mp_state: self.get_mp_state()?, ..Default::default() }` and removing relevant reassignments
    --> hypervisor/src/kvm/mod.rs:1237:9
     |
1237 |         let mut state = CpuState::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
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
f452fe7497 hypervisor: kvm: Use struct initialiser where possible
error: field assignment outside of initializer for an instance created with Default::default()
   --> hypervisor/src/kvm/mod.rs:318:9
    |
318 |         cap.cap = KVM_CAP_SPLIT_IRQCHIP;
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: `-D clippy::field-reassign-with-default` implied by `-D warnings`
note: consider initializing the variable with `kvm_bindings::kvm_enable_cap { cap: KVM_CAP_SPLIT_IRQCHIP, ..Default::default() }` and removing relevant reassignments
   --> hypervisor/src/kvm/mod.rs:317:9
    |
317 |         let mut cap: kvm_enable_cap = Default::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
Wei Liu
2aaf0540b6 hypervisor: drop linux-loader dependency
It is not used anywhere inside the hypervisor crate.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2021-01-04 10:17:20 +00:00
Samuel Ortiz
21dcac7721 hypervisor: Bump iced-x86 to 1.10.0
And fix related warnings: op_kind and op_register are being deprecated
as they might panic.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-12-17 18:58:34 +00:00
Muminul Islam
8c85dd32fa hypervisor: Move msr and msr_data macro to arch/x86
Currently these two macros(msr, msr_data) reside both on kvm and mshv
module. Definition is same for both module. Moving them to arch/x86
module eliminates redundancy and makes more sense.

Signed-off-by: Muminul Islam <muislam@microsoft.com>
2020-12-11 00:59:46 +01:00
Muminul Islam
aac86f4523 hypervisor: Fix clippy errors in the mshv module
Signed-off-by: Muminul Islam <muislam@microsoft.com>
2020-12-10 19:43:58 +00:00
Muminul Islam
ef3fad8388 hypervisor: mshv: Implement CPU state for MshvVcpu
Signed-off-by: Muminul Islam <muislam@microsoft.com>
2020-12-09 14:55:20 +01:00
Muminul Islam
2b42f6c835 hypervisor: mhsv: Implement CPU run loop
Handle CPU exits, adding instruction emulations.
Keep CPU specific data inside vmm for later use.

Co-Developed-by: Nuno Das Neves <nudasnev@microsoft.com>
Signed-off-by: Nuno Das Neves <nudasnev@microsoft.com>
Co-Developed-by: Praveen Paladugu <prapal@microsoft.com>
Signed-off-by: Praveen Paladugu <prapal@microsoft.com>
Co-Developed-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Co-Developed-by: Wei Liu <liuwe@microsoft.com>
Signed-off-by: Wei Liu <liuwe@microsoft.com>
Signed-off-by: Muminul Islam <muislam@microsoft.com>
2020-12-09 14:55:20 +01:00
Muminul Islam
7acb5c6437 hypervisor, mshv: Define MshvEmulatorContext
This patch adds the definition and implementation
MshvEmulatorContext which is platform emulation for Hyper-V.

Co-Developed-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Co-Developed-by: Wei Liu <liuwe@microsoft.com>
Signed-off-by: Wei Liu <liuwe@microsoft.com>
Signed-off-by: Muminul Islam <muislam@microsoft.com>
2020-12-09 14:55:20 +01:00
Muminul Islam
63f356b75b hypervisor: mhsv: Define software emulated TLB
A software emulated TLB. This is mostly used by
the instruction emulator to cache gva to gpa
translations passed from the hypervisor.

Co-Developed-by: Nuno Das Neves <nudasnev@microsoft.com>
Signed-off-by: Nuno Das Neves <nudasnev@microsoft.com>
Co-Developed-by: Praveen Paladugu <prapal@microsoft.com>
Signed-off-by: Praveen Paladugu <prapal@microsoft.com>
Co-Developed-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Co-Developed-by: Wei Liu <liuwe@microsoft.com>
Signed-off-by: Wei Liu <liuwe@microsoft.com>
Signed-off-by: Muminul Islam <muislam@microsoft.com>
2020-12-09 14:55:20 +01:00
Muminul Islam
fd0ef6cfb5 hypervisor: mshv: Emulate IrqFd and IOEventFd for mshv module
We don't have IrqFd and IOEventFd support in the kernel for now.
So an emulation layer is needed. In the future, we will be adding this
support in the kernel.

Co-Developed-by: Wei Liu <liuwe@microsoft.com>
Signed-off-by: Wei Liu <liuwe@microsoft.com>
Signed-off-by: Muminul Islam <muislam@microsoft.com>
2020-12-09 14:55:20 +01:00
Muminul Islam
286a23fbd4 hypervisor: mshv: Add vmmops to MshvVm struct
vmmops trait object is needed to get access some
of the upper level vmm functionalities i.e guest
memory access, IO read write etc.

Co-Developed-by: Praveen Paladugu <prapal@microsoft.com>
Signed-off-by: Praveen Paladugu <prapal@microsoft.com>
Signed-off-by: Muminul Islam <muislam@microsoft.com>
2020-12-09 14:55:20 +01:00
Muminul Islam
3a93487b82 hypervisor: mshv: Add Microsoft Hypervisor specific data to Mshv{Vm,Vcpu}
Adding hv_state (hyperv state) to Vm and Vcpu struct for mshv.
This state is needed to keep some kernel data(for now hypercall page)
in the vmm.

Co-Developed-by: Praveen Paladugu <prapal@microsoft.com>
Signed-off-by: Praveen Paladugu <prapal@microsoft.com>
Signed-off-by: Muminul Islam <muislam@microsoft.com>
2020-12-09 14:55:20 +01:00
Muminul Islam
23c46b162e hypervisor, vmm: Implement the mshv module and add mshv support in vmm
Implement hypervisor, Vm, Vcpu crate at a minimal
functionalities. Also adds the mshv feature gate,
separates out the functionalities between kvm and
mshv inside the vmm crate.

Co-Developed-by: Nuno Das Neves <nudasnev@microsoft.com>
Signed-off-by: Nuno Das Neves <nudasnev@microsoft.com>
Co-Developed-by: Praveen Paladugu <prapal@microsoft.com>
Signed-off-by: Praveen Paladugu <prapal@microsoft.com>
Co-Developed-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Co-Developed-by: Wei Liu <liuwe@microsoft.com>
Signed-off-by: Wei Liu <liuwe@microsoft.com>
Signed-off-by: Muminul Islam <muislam@microsoft.com>
2020-12-09 14:55:20 +01:00
Muminul Islam
f4af668d76 hypervisor, vmm: Implement MsiInterruptOps for mshv
Co-Developed-by: Wei Liu <liuwe@microsoft.com>
Signed-off-by: Wei Liu <liuwe@microsoft.com>
Signed-off-by: Muminul Islam <muislam@microsoft.com>
2020-12-09 14:55:20 +01:00
Muminul Islam
7fe5d276a3 hypervisor: mshv: Add x86_64 module
Add x86_64 specific definitions as we only plan
to support x86_64 for the moment.

Signed-off-by: Muminul Islam <muislam@microsoft.com>
2020-12-09 14:55:20 +01:00
Muminul Islam
e664fa386b hypervisor: Modify toml file to add mshv-{bindings, ioctls) crates
Signed-off-by: Muminul Islam <muislam@microsoft.com>
2020-12-09 14:55:20 +01:00
Muminul Islam
9919dec1d9 hypervisor: Introduce mshv module in the hypervisor
This is the initial folder structure of the mshv module inside
the hypervisor crate. The aim of this module is to support Microsoft
Hyper-V as a supported Hypervisor.

Signed-off-by: Muminul Islam <muislam@microsoft.com>
2020-12-09 14:55:20 +01:00
Muminul Islam
9ce6c3b75c hypervisor, vmm: Feature guard KVM specific code
There are some code base and function which are purely KVM specific for
now and we don't have those supports in mshv at the moment but we have plan
for the future. We are doing a feature guard with KVM. For example, KVM has
mp_state, cpu clock support,  which we don't have for mshv. In order to build
those code we are making the code base for KVM specific compilation.

Signed-off-by: Muminul Islam <muislam@microsoft.com>
2020-12-09 14:55:20 +01:00
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
9594ecec0d build: Only pull in iced-x86 for x86_64 builds
Fixes: #2024

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-12-07 17:42:42 +00:00
Wei Liu
6d38612f6c hypervisor: x86: move RFLAGS bits to regs.rs
Signed-off-by: Wei Liu <liuwe@microsoft.com>
2020-12-07 14:35:35 +01:00
Wei Liu
a44d96c9cc hypervisor: emulator: switch to use vec in MockVMM
The customized hashmap macro can't be lifted to common MockVMM code.
MockVMM only needs a collection to iterate over to get initial register
states. A vector is just as good as a hashmap.

Switch to use a vector to store initial register states. This allows us
to drop the hashmap macro everywhere.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2020-12-07 14:35:35 +01:00
Wei Liu
93b7dcac12 hypervisor: emulator: emulate CMP
Unfortunately Rust stable does not yet have inline ASM support the flag
calculation will have to be implemented in software.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2020-12-07 14:35:35 +01:00
Wei Liu
dd3844a892 hypervisor: emulator: drop imm_op macro
It is not needed anymore.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2020-12-07 14:35:35 +01:00
Wei Liu
0c3ef986fa hypervisor: emulator: rewrite MOV emulation with get/set_op
Signed-off-by: Wei Liu <liuwe@microsoft.com>
2020-12-07 14:35:35 +01:00
Wei Liu
53c3b00fb0 hypervisor: emulator: introduce get/set_op
Provide two helpers to get and set operands. This reduces repetition.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2020-12-07 14:35:35 +01:00
Rob Bradford
2cc312b65c build: Fix cargo fuzz build
Unfortunately it seems patch entries are ignored when obtaining
dependencies from another workspace.

Remove the problematic kvm-ioctls and kvm-bindings patch entries and use
the forked repository directly.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-12-04 11:38:44 +00:00
Wei Liu
90ae4676c8 hypervisor: x86: emulator: drop unneeded curly brackets
There is no need to have a pair of curly brackets for structures without
any member.

No functional change.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2020-12-03 14:52:00 +01:00
Wei Liu
c352b59857 hypervisor: emulator: drop InstructionMap
It is not needed anymore.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2020-12-02 19:45:36 +01:00
Wei Liu
ab89b48143 hypervisor: emulator: use static mapping to dispatch emulation
The mapping between code and its handler is static. We can drop the
HashMap in favour of a static match expression.

This has two benefits:
1. No more memory allocation and deallocation for the HashMap.
2. Shorter look-up time.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2020-12-02 19:45:36 +01:00
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
15f0451c34 hypervisor: emulator: Format instructions on error paths
Formatting instructions might be costly, so we only want to do that on
the emulation error paths.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2020-12-01 11:13:54 +01:00
Samuel Ortiz
3fa6e17cc4 hypervisor: x86: Make imm_op available to all emulated instructions
By moving it to the instructions root module.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2020-12-01 11:13:54 +01:00
Wei Liu
e2c81f9ed8 hypervisor: x86: Extend the imm_op() macro
To support every kind of immediate operands.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2020-12-01 11:13:54 +01:00
Wei Liu
ba71390d6a hypervisor: drop arc-swap dependency
It is no longer needed after 0fec32658.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2020-11-30 16:47:32 +00:00
Samuel Ortiz
f6892f2ede hypervisor: emulator: Add a negative instruction fetch unit test
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2020-11-30 13:09:19 +00:00
Samuel Ortiz
251434862f hypervisor: emulator: Fix logic bug in MockVMM
emulate_first_insn() really means we want only the first instruction to
be emulated.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2020-11-30 13:09:19 +00:00
Samuel Ortiz
1ac4c42a84 hypervisor: emulator: Add initial fetch support
When the x86 instruction decoder tells us about some missing bytes from
the instruction stream, we call into the platform fetch method and
emulate one last instruction.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2020-11-30 13:09:19 +00:00
Samuel Ortiz
7dc92d1dac hypervisor: emulator: Decoding loop restructuring
In preparation for the instruction fetching step, we modify the decoding
loop so that we can check what the last decoding error is.

We also switch to explictly using decode_out() which removes a 32 bytes
copy compared to decode().

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2020-11-30 13:09:19 +00:00
Samuel Ortiz
7a4edecd29 hypervisor: x86: Add an address linearization method to CpuStateManager
From a CPU state and a segment, we can translate a logical (segmented)
address into a linear one.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2020-11-30 13:09:19 +00:00
Samuel Ortiz
d419e30df1 hypervisor: x86: Add a SegmentRegistorOps trait
In order to validate emulated memory accesses, we need to be able to get
all the segments descriptor attributes.

This is done by abstracting the SegmentRegister attributes through a
trait that each hypervisor will have to implement.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2020-11-30 13:09:19 +00:00
Samuel Ortiz
3faffcb087 hypervisor: emulator: Add a CPU mode getter to CpuStateManager
We need to be able to build the CPU mode from its state in order to
start implementing mode related checks in the x86 emulator.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2020-11-30 13:09:19 +00:00
Samuel Ortiz
b3a1f5f1be hypervisor: Start moving register definitions to the hypervisor crate
Most of arch/src/x86_64/regs.rs will eventually move unde
hypervisor/src/x86/regs.rs.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2020-11-30 13:09:19 +00:00
Samuel Ortiz
a3d957ba4d hypervisor: emulator: Clean the MockVMM initialization path
Separate the standalone _init_and_run() function into 2 MockVMM methods:
new() and emulate_insn().

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2020-11-27 19:17:35 +01:00
Samuel Ortiz
5bd63efa45 hypervisor: emulator: Move MockVMM into a shared test module
The MockVMM platform will be used by other instructions emulation
implementations, but also by the emulator framework.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2020-11-27 19:17:35 +01:00
Wei Liu
66b001665f hypervisor: x86: only calculate address when necessary in MOV emulation
Only calculate the address when the operand is memory.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2020-11-26 16:12:23 +01:00
Wei Liu
c6aea5af5d hypervisor: x86: drop an extraneous box indirection
There is no need to put a box into another box.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2020-11-26 12:02:47 +00:00
Wei Liu
c8b655490e hypervisor: x86: reference PlatformEmulator in Emulator
The observation here is PlatformEmulator can be seen as the context for
emulation to take place. It should be rather easy to construct a context
that satisfies the lifetime constraints for instruction emulation.

The thread doing the emulation will have full ownership over the
context, so this removes the need to wrap PlatformEmulator in Arc and
Mutex, as well as the need for the context to be either Clone or Copy.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2020-11-26 12:14:40 +01:00
Wei Liu
a6ad85dc40 hypervisor: x86: handle more registers in emulator
List all GPRs documented in Intel's SDM.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2020-11-25 20:18:40 +01:00
Samuel Ortiz
0f4f30dbde hypervisor: x86: Add MOV to the emulator instruction map
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2020-11-25 17:02:11 +01:00
Samuel Ortiz
fe5401223b hypervisor: x86: Emulate MOV
And add a few unit tests based on a Mock platform.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2020-11-25 17:02:11 +01:00
Samuel Ortiz
12b7a498d9 hypervisor: x86: Add an instruction emulator
The emulator gets a CPU state from a CpuStateManager instance, emulates
the passed instructions stream and returns the modified CPU state.

The emulator is a skeleton for now since it comes with an empty
instruction mnemonic map.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2020-11-25 17:02:11 +01:00
Samuel Ortiz
1fc97e91a4 hypervisor: x86: Add an InstructionHandler interface
And an InstructionMap helper structure to map x86 mnemonic codes
to instruction handlers.

Any instruction emulation implementation should then boil down with
implementing InstructionHandler for any supported mnemonic.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2020-11-25 17:02:11 +01:00
Samuel Ortiz
fc5d6c96be hypervisor: x86: Add a minimal CpuStateManager implementation
Minimal will be defined by the amount of emulated instructions.
Carrying all GPRs, all CRs, segment registers and table registers should
cover quite a few instructions.

Co-developed-by: Wei Liu <liuwe@microsoft.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2020-11-25 17:02:11 +01:00
Samuel Ortiz
546778ebfb hypervisor: x86: Add a CpuStateManager interface
For efficiently emulating x86 instructions, we need to build and pass a
CPU state copy/reference to instruction emulation handlers. Those handlers
will typically modify the CPU state and let the caller commit those
changes back through the PlatformEmulator trait set_cpu_state method.

Hypervisors typically have internal CPU state structures, that maps back
to the correspinding kernel APIs. By implementing the CpuState trait,
instruction emulators will be able to directly work on CPU state
instances that are directly consumable by the underlying hypervisor and
its kernel APIs.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2020-11-25 17:02:11 +01:00
Samuel Ortiz
f0360aff83 hypervisor: Architecture agnostic instruction emulation interface
In order to emulate instructions, we need a way to get access to some of
the guest resources. The PlatformEmulator interface provides guest
memory and CPU state access to emulator implementations.

Typically, an hypervisor will implement PlatformEmulator for architecture
specific instruction emulators to build their framework on top of.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2020-11-25 17:02:11 +01:00
Samuel Ortiz
ae96aeda65 arch: Move the gdt module to the hypervisor crate
We will need the GDT API for the hypervisor's x86 instruction
emulator implementation, it's better if the arch crate depends on the
hypervisor one rather than the other way around.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2020-11-25 17:02:11 +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
Rob Bradford
0fec326582 hypervisor, vmm: Remove shared ownership of VmmOps
This interface is used by the vCPU thread to delegate responsibility for
handling MMIO/PIO operations and to support different approaches than a
VM exit.

During profiling I found that we were spending 13.75% of the boot CPU
uage acquiring access to the object holding the VmmOps via
ArcSwap::load_full()

    13.75%     6.02%  vcpu0            cloud-hypervisor    [.] arc_swap::ArcSwapAny<T,S>::load_full
            |
            ---arc_swap::ArcSwapAny<T,S>::load_full
               |
                --13.43%--<hypervisor::kvm::KvmVcpu as hypervisor::cpu::Vcpu>::run
                          std::sys_common::backtrace::__rust_begin_short_backtrace
                          core::ops::function::FnOnce::call_once{{vtable-shim}}
                          std::sys::unix:🧵:Thread:🆕:thread_start

However since the object implementing VmmOps does not need to be mutable
and it is only used from the vCPU side we can change the ownership to
being a simple Arc<> that is passed in when calling create_vcpu().

This completely removes the above CPU usage from subsequent profiles.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-11-19 00:16:02 +01:00
Rob Bradford
041724a7cf hypervisor: Add ability to get dirty logged pages
Return a bitmap of pages that have been dirtied (written to) since it
was last called.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-11-17 16:57:11 +00:00
Rob Bradford
8baa244ec1 hypervisor: Add control for dirty page logging
When creating a userspace mapping provide a control for enabling the
logging of dirty pages.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-11-17 16:57:11 +00:00
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
46e736973e hypervisor: kvm: Correctly share VmmOps between Kvm{Vm,Vcpu}
Cloning the ArcSwapOption (like the ArcSwap) does not act like a
.clone() on an Arc, instead an entirely new ArcSwap is created with the
same contents. To correctly share the ArcSwap needs to be placed inside
an Arc.

See: 2433d5719b (diff-6c6d94533c44c19bd1416ef17bad1a878e63dca6e98d59181228fbe8f967c62bR6)

Due to this being wrongly used ::clone() was removed from
ArcSwap/ArcSwapOption in 1.0.0.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-11-16 14:10:09 +01:00
Michael Zhao
093a581ee1 vmm: Implement VM rebooting on AArch64
The logic to handle AArch64 system event was: SHUTDOWN and RESET were
all treated as RESET.

Now we handle them differently:
- RESET event will trigger Vmm::vm_reboot(),
- SHUTDOWN event will trigger Vmm::vm_shutdown().

Signed-off-by: Michael Zhao <michael.zhao@arm.com>
2020-10-30 17:14:44 +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
Sebastien Boeuf
28e12e9f3a vmm, hypervisor: Fix snapshot/restore for Windows guest
The snasphot/restore feature is not working because some CPU states are
not properly saved, which means they can't be restored later on.

First thing, we ensure the CPUID is stored so that it can be properly
restored later. The code is simplified and pushed down to the hypervisor
crate.

Second thing, we identify for each vCPU if the Hyper-V SynIC device is
emulated or not. In case it is, that means some specific MSRs will be
set by the guest. These MSRs must be saved in order to properly restore
the VM.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2020-10-21 19:11:03 +01:00
Muminul Islam
5867a1af4a hypervisor: Update Author and license info in the toml file
Signed-off-by: Muminul Islam <muislam@microsoft.com>
2020-10-20 11:51:32 +01:00
Rob Bradford
c4dc25de09 hypervisor: kvm: aarch64: Trigger reset upon KVM_SYSTEM_EVENT_RESET
This will trigger Vm::vm_reboot to make the VM reboot.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-10-20 12:46:35 +08:00
Rob Bradford
573a5c63cf hypervisor: kvm: Use unstable_sort() to keep clippy happy
"Using a stable sort consumes more memory and cpu cycles. Because values
which compare equal are identical, preserving their relative order (the
guarantee that a stable sort provides) means nothing, while the extra
costs still apply."

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-10-09 10:49:54 +02:00
Sebastien Boeuf
2fac41f154 deps: Patch kvm-ioctls and kvm-bindings crates
Instead of having the hypervisor crate embedding Cloud-Hypervisor forks
from the rust-vmm project, it's more appropriate to leave the rust-vmm
references in the hypervisor crate, and have the root Cargo.toml being
patched.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2020-10-08 18:45:42 +02:00
Wei Liu
ed1fdd1f7d hypervisor, arch: rename "OneRegister" and relevant code
The OneRegister literally means "one (arbitrary) register". Just call it
"Register" instead. There is no need to inherit KVM's naming scheme in
the hypervisor agnostic code.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2020-10-08 08:55:10 +02:00
Wei Liu
9ad14e6b3a aarch64: Add OneReg to the list required extensions for KVM
Without that capability save / restore for aarch64 won't work.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2020-10-08 08:54:38 +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
Praveen Paladugu
71c435ce91 hypervisor, vmm: Introduce VmmOps trait
Run loop in hypervisor needs a callback mechanism to access resources
like guest memory, mmio, pio etc.

VmmOps trait is introduced here, which is implemented by vmm module.
While handling vcpuexits in run loop, this trait allows hypervisor
module access to the above mentioned resources via callbacks.

Signed-off-by: Praveen Paladugu <prapal@microsoft.com>
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2020-10-02 16:42:55 +01:00
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
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
Praveen Paladugu
4b32252028 hypervisor, vmm: fix clippy warnings
Signed-off-by: Praveen Paladugu <prapal@microsoft.com>
2020-09-26 14:07:12 +01:00
Henry Wang
89a6b63e6e hypervisor: Implement get_device_attr method for AArch64
This commit implements the `get_device_attr` method for the
`KVM_GET_DEVICE_ATTR` ioctl. This ioctl will be used in retrieving
the GIC status.

Signed-off-by: Henry Wang <Henry.Wang@arm.com>
2020-09-23 12:37:25 +01:00
Henry Wang
ffafeda4b6 AArch64: Implement AArch64 vCPU states save/restore
This commit adds methods to save/restore AArch64 vCPU registers,
including:

1. The AArch64 `VcpuKvmState` structure.

2. Some `Vcpu` trait methods of the `KvmVcpu` structure to
enable the save/restore of the AArch64 vCPU states.

Signed-off-by: Henry Wang <Henry.Wang@arm.com>
2020-09-23 12:37:25 +01:00
Henry Wang
e3d45be6f7 AArch64: Preparation for vCPU save/restore
This commit ports code from firecracker and refactors the existing
AArch64 code as the preparation for implementing save/restore
AArch64 vCPU, including:

1. Modification of `arm64_core_reg` macro to retrive the index of
arm64 core register and implemention of a helper to determine if
a register is a system register.

2. Move some macros and helpers in `arch` crate to the `hypervisor`
crate.

3. Added related unit tests for above functions and macros.

Signed-off-by: Henry Wang <Henry.Wang@arm.com>
2020-09-23 12:37:25 +01:00
Rob Bradford
da642fcf7f hypervisor: Add "HyperV" exit to list of KVM exits
Currently we don't need to do anything to service these exits but when
the synthetic interrupt controller is active an exit will be triggered
to notify the VMM of details of the synthetic interrupt page.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-09-16 16:08:01 +01:00
Rob Bradford
9b48ee38cb hypervisor: Support enabling HyperV synthetic interrupt controller
This adds a KVM HyperV synthetic interrupt controller in place of the
emulated PIC.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-09-16 16:08:01 +01:00
dependabot-preview[bot]
f24a12913a build(deps): bump libc from 0.2.76 to 0.2.77
Bumps [libc](https://github.com/rust-lang/libc) from 0.2.76 to 0.2.77.
- [Release notes](https://github.com/rust-lang/libc/releases)
- [Commits](https://github.com/rust-lang/libc/compare/0.2.76...0.2.77)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2020-09-10 06:45:09 +00:00
Wei Liu
53f4fed516 hypervisor: drop get_api_version from Hypervisor trait
The new function already checks if the API version is compatible. There
is no need to expose the get_api_version function to code outside
hypervisor crate.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2020-09-07 11:59:08 +01:00
Wei Liu
d73971e407 hypervisor: kvm: check API compatibility
Signed-off-by: Wei Liu <liuwe@microsoft.com>
2020-09-07 11:59:08 +01:00
Rob Bradford
c266e56a02 hypervisor: Fix copy and pasted error enum entries
Remove unused GetNrVcpus error and fix duplicated error message for
GetCpuId.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-09-02 10:24:48 -07:00
Michael Zhao
afc98a5ec9 vmm: Fix AArch64 clippy warnings of vmm and other crates
Signed-off-by: Michael Zhao <michael.zhao@arm.com>
2020-08-24 10:59:08 +02:00
Muminul Islam
92b4499c1e vmm, hypervisor: Add vmstate to snapshot and restore path
Signed-off-by: Muminul Islam <muislam@microsoft.com>
2020-08-24 08:48:15 +02:00
Muminul Islam
77e901a602 hypervisor: Introduce VM state to Vm hypervisor trait
We may need to store hypervisor speciific data to the VM. This support is
needed for Microsoft hyperv implementations. This patch introduces two
new definitions to Vm trait and implements for KVM.

Signed-off-by: Muminul Islam <muislam@microsoft.com>
2020-08-24 08:48:15 +02:00
dependabot-preview[bot]
57ff608be9 build(deps): bump libc from 0.2.74 to 0.2.76
Bumps [libc](https://github.com/rust-lang/libc) from 0.2.74 to 0.2.76.
- [Release notes](https://github.com/rust-lang/libc/releases)
- [Commits](https://github.com/rust-lang/libc/compare/0.2.74...0.2.76)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2020-08-21 07:08:35 +00:00
Sebastien Boeuf
0f1ab38ded hypervisor: kvm: Make MSRs set/get more flexible
Based on the way KVM_GET_MSRS and KVM_SET_MSRS work, both function are
very unlikely to fail, as they simply stop looping through the list of
MSRs as soon as getting or setting one fails. This is causing some
issues with the snapshot/restore feature, as on some platforms, we only
save a subset of the list of MSRs, leading to unproper way of saving the
VM.

The way to address this issue is by checking the number of MSRs get/set
matches the expected amount from the list. In case it does not match, we
simply ignore the failing MSR and continue getting/setting the rest of
the list. By doing this by iterations, we end up getting/setting as many
MSRs as the platform can support.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2020-08-05 14:52:35 +01:00
dependabot-preview[bot]
12c5b7668a build(deps): bump libc from 0.2.73 to 0.2.74
Bumps [libc](https://github.com/rust-lang/libc) from 0.2.73 to 0.2.74.
- [Release notes](https://github.com/rust-lang/libc/releases)
- [Commits](https://github.com/rust-lang/libc/compare/0.2.73...0.2.74)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2020-07-28 20:46:37 +00:00
Michael Zhao
ddf1b76906 hypervisor: Refactor create_passthrough_device() for generic type
Changed the return type of create_passthrough_device() to generic type
hypervisor::Device.

Signed-off-by: Michael Zhao <michael.zhao@arm.com>
2020-07-21 16:22:02 +02:00
Michael Zhao
e7288888cf hypervisor: Extend hypervisor crate with Device trait
Added Device trait and KvmDevice struct for KVM-emulated devices.

Signed-off-by: Michael Zhao <michael.zhao@arm.com>
2020-07-21 16:22:02 +02:00
Wei Liu
e1af251c9f vmm, hypervisor: adjust set_gsi_routing / set_gsi_routes
Make set_gsi_routing take a list of IrqRoutingEntry. The construction of
hypervisor specific structure is left to set_gsi_routing.

Now set_gsi_routes, which is part of the interrupt module, is only
responsible for constructing a list of routing entries.

This further splits hypervisor specific code from hypervisor agnostic
code.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2020-07-20 07:32:32 +02:00
dependabot-preview[bot]
12b37ef13b build(deps): bump libc from 0.2.72 to 0.2.73
Bumps [libc](https://github.com/rust-lang/libc) from 0.2.72 to 0.2.73.
- [Release notes](https://github.com/rust-lang/libc/releases)
- [Commits](https://github.com/rust-lang/libc/compare/0.2.72...0.2.73)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2020-07-20 05:15:24 +00:00
Wei Liu
ff8d7bfe83 hypervisor: add create_passthrough_device call to Vm trait
That function is going to return a handle for passthrough related
operations.

Move create_kvm_device code there.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2020-07-17 20:21:39 +02:00
Wei Liu
a83bd97e0d hypervisor: introduce a new function
It returns an hypervisor object depending on which hypervisor is
configured.  Currently it only supports KVM.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2020-07-15 17:21:07 +02:00
Sebastien Boeuf
e10d9b13d4 arch, hypervisor, vmm: Patch CPUID subleaves to expose EPC sections
The support for SGX is exposed to the guest through CPUID 0x12. KVM
passes static subleaves 0 and 1 from the host to the guest, without
needing any modification from the VMM itself.

But SGX also relies on dynamic subleaves 2 through N, used for
describing each EPC section. This is not handled by KVM, which means
the VMM is in charge of setting each subleaf starting from index 2
up to index N, depending on the number of EPC sections.

These subleaves 2 through N are not listed as part of the supported
CPUID entries from KVM. But it's important to set them as long as index
0 and 1 are present and indicate that SGX is supported.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2020-07-15 15:08:56 +02:00
Michael Zhao
cce6237536 pci: Enable GSI routing (MSI type) for AArch64
In this commit we saved the BDF of a PCI device and set it to "devid"
in GSI routing entry, because this field is mandatory for GICv3-ITS.

Signed-off-by: Michael Zhao <michael.zhao@arm.com>
2020-07-14 14:34:54 +01:00
Michael Zhao
82a0e29c7a hypervisor: Export check_extension() API from hypervisor::Vm
Signed-off-by: Michael Zhao <michael.zhao@arm.com>
2020-07-14 14:34:54 +01:00
Wei Liu
5bfac796b3 build: add a default feature KVM
It gets bubbled all the way up from hypervsior crate to top-level
Cargo.toml.

Cloud Hypervisor can't function without KVM at this point, so make it
a default feature.

Fix all scripts that use --no-default-features.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2020-07-08 11:07:15 +01:00
Wei Liu
a4f484bc5e hypervisor: Define a VM-Exit abstraction
In order to move the hypervisor specific parts of the VM exit handling
path, we're defining a generic, hypervisor agnostic VM exit enum.

This is what the hypervisor's Vcpu run() call should return when the VM
exit can not be completely handled through the hypervisor specific bits.
For KVM based hypervisors, this means directly forwarding the IO related
exits back to the VMM itself. For other hypervisors that e.g. rely on the
VMM to decode and emulate instructions, this means the decoding itself
would happen in the hypervisor crate exclusively, and the rest of the VM
exit handling would be handled through the VMM device model implementation.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

Fix test_vm unit test by using the new abstraction and dropping some
dead code.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2020-07-06 12:59:43 +01:00
Wei Liu
cfa758fbb1 vmm, hypervisor: introduce and use make_user_memory_region
This removes the last KVM-ism from memory_manager. Also make use of that
method in other places.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2020-07-06 12:31:19 +02:00
Samuel Ortiz
618722cdca hypervisor: cpu: Rename state getter and setter
vcpu.{set_}cpu_state() is a stutter.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2020-07-06 09:35:30 +01:00
Rob Bradford
8e43f886e1 build: Bump kvm-ioctls dependency after rebase
ch branch is now rebased on latest upstream master

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2020-07-01 18:46:05 +02:00
Sebastien Boeuf
e35d4c5b28 hypervisor: Store all supported MSRs
On x86 architecture, we need to save a list of MSRs as part of the vCPU
state. By providing the full list of MSRs supported by KVM, this patch
fixes the remaining snapshot/restore issues, as the vCPU is restored
with all its previous states.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2020-06-30 14:03:03 +01:00
Sebastien Boeuf
49b4fba283 hypervisor: Retrieve list of supported MSRs
Add a new function to the hypervisor trait so that the caller can
retrieve the list of MSRs supported by this hypervisor.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2020-06-30 14:03:03 +01:00
Sebastien Boeuf
e2b5c78dc5 hypervisor: Re-order vCPU state for storing and restoring
Some vCPU states such as MP_STATE can be modified while retrieving
other states. For this reason, it's important to follow a specific
order that will ensure a state won't be modified after it has been
saved. Comments about ordering requirements have been copied over
from Firecracker commit 57f4c7ca14a31c5536f188cacb669d2cad32b9ca.

This patch also set the previously saved VCPU_EVENTS, as this was
missing from the restore codepath.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2020-06-30 14:03:03 +01:00
Wei Liu
24c051c663 vmm: hypervisor: drop duplicate comment
Signed-off-by: Wei Liu <liuwe@microsoft.com>
2020-06-29 21:51:59 +01:00
Wei Liu
2518b9e3cd vmm: hypervisor: fix white space issues
Signed-off-by: Wei Liu <liuwe@microsoft.com>
2020-06-29 21:51:59 +01:00
Muminul Islam
72ae1577ed hypervisor: Update license to Apache-2.0 OR BSD-3-Clause
Initially the licensing was just Apache-2.0. This patch changes
the licensing to dual license Apache-2.0 OR BSD-3-Clause

Signed-off-by: Muminul Islam <muislam@microsoft.com>
2020-06-27 00:06:39 +02:00
Wei Liu
1741af74ed hypervisor: add safety statement in set_user_memory_region
When set_user_memory_region was moved to hypervisor crate, it was turned
into a safe function that wrapped around an unsafe call. All but one
call site had the safety statements removed. But safety statement was
not moved inside the wrapper function.

Add the safety statement back to help reasoning in the future. Also
remove that one last instance where the safety statement is not needed .

No functional change.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2020-06-25 10:25:13 +02:00
Wei Liu
b27439b6ed arch, hypervisor, vmm: KvmHyperVisor -> KvmHypervisor
"Hypervisor" is one word. The "v" shouldn't be capitalised.

No functional change.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2020-06-25 10:25:13 +02:00
Sebastien Boeuf
309924eca8 hypervisor: Add guest pause notification
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2020-06-24 12:38:56 +02:00