Commit Graph

251 Commits

Author SHA1 Message Date
Muminul Islam 3096f1d42f hypervisor: Fix few register names on MSHV
Recently generated mshv-bindings has most of the registers
renamed. This patch renames some of the MSHV registers.

Signed-off-by: Muminul Islam <muislam@microsoft.com>
2023-04-10 14:28:41 -07:00
Alyssa Ross 755cabea4c hypervisor: use proper doc tests for examples
It seems like these examples were always intended to be doctests,
since there are lines marked with "#" so that they are excluded from
the generated documentation, but they were not recognised as doc tests
because they were not formatted correctly.

The code needed some adjustments so that it would actually compile and
run as doctests.

Signed-off-by: Alyssa Ross <hi@alyssa.is>
2023-04-05 11:22:47 +01:00
Wei Liu de3ca97095 hypervisor: rename get_cpuid to get_supported_cpuid
To better reflect its nature and avoid confusion with get_cpuid2.

No functional change.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2023-02-23 13:03:12 +00:00
Jinank Jain 8914ce9da8 build: Bump mshv-ioctls from 10d0c52 to ef01a5a
With this bump there was a change in one of the externally exposed
variable. Thus, the use of that variable in CLH must be adjusted
accordingly.

Signed-off-by: Jinank Jain <jinankjain@microsoft.com>
2022-12-20 10:10:34 +00:00
Wei Liu d272113d0c hypervisor: mshv: modify two safety comments
Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-11-18 12:50:01 +00:00
Wei Liu 2e2ce47271 hypervisor: do not get and set MSR_IA32_TSC for MSHV
Setting that MSR causes the reference TSC page to be disabled.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-11-15 10:19:57 +00:00
Bo Chen a9ec0f33c0 misc: Fix clippy issues
Signed-off-by: Bo Chen <chen.bo@intel.com>
2022-11-02 09:41:43 +01:00
Wei Liu bec47ebcc9 hypervisor: simplify LapicState
Both KVM and MSHV share the same layout. We can drop one level of
indirection.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-07-28 08:52:28 +01:00
Rob Bradford b1a87cb698 hypervisor: mshv: Remove more #[allow(dead_code)] and unused code
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2022-07-25 10:09:46 +01:00
Wei Liu aa66526ea0 hypervisor: add a function to check availability
Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-07-22 12:50:12 +01:00
Wei Liu c3ce5aa5b1 hypervisor: adjust new function return type
Make them return wrapped trait object directly.

No functional change.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-07-22 12:50:12 +01:00
Wei Liu 9fc3379e8d hypervisor: add a function to return hypervisor type
Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-07-22 12:50:12 +01:00
Wei Liu a96a5d7816 hypervisor, vmm: use new vfio-ioctls
Use the new vfio-ioctls APIs. Drop Cloud Hypervisor's Device trait
since it is no longer needed.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-07-21 23:37:53 +01:00
Wei Liu eca6609dbb hypervisor: mshv: create_device returns DeviceFd directly
This aligns with KVM's code. No functional change.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-07-21 23:37:53 +01:00
Wei Liu 422bf89d4d hypervisor: drop create_device from Vm trait
This then avoids the need for creating a generic DeviceFd type in the
hypervisor crate.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-07-21 23:37:53 +01:00
Wei Liu b5270e0b45 hypervisor: allow downcasting to hypervisor VM types
Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-07-21 23:37:53 +01:00
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 563919fc4a hypervisor: x86: drop get_msr_list from hypervisor trait
It is not needed by code outside of the hypervisor crate.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-07-19 09:38:38 +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 d461daa7fa hypervisor: x86: drop get/set VcpuEvents from vcpu trait
Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-07-19 09:38:38 +01:00
Wei Liu 58dbf07453 hypervisor: x86: drop get/set Xcrs from Vcpu trait
Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-07-19 09:38:38 +01:00
Wei Liu c8d9a43072 hypervisor: x86: drop get/set Xsave from Vcpu trait
They are only needed internally within the hypervisor crate.

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 edf6dda705 hypervisor: mshv: drop get_suspend_regs
It is not used (yet).

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-07-18 11:02:51 +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 d2b194c4f1 hypervisor: x86: provide a generic DescriptorTable 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
Wei Liu d20f647b32 hypervisor: provide a generic IrqRoutingEntry structure
Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-07-15 10:21:43 +01:00
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
Wei Liu 72d552e5e1 hypervisor: provide a generic CpuState structure
Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-07-14 22:09:04 +01:00
Wei Liu f9f0a60dcf hypervisor: provide a generic IoEventAddress structure
Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-07-14 22:09:04 +01:00
Wei Liu 9810ed4496 hypervisor: provide a generic MpState structure
It is however only used for KVM right now because MSHV does not need it
yet.

Nonetheless a stub MSHV constructor should be there and get/set
functions should be implemented for MSHV.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-07-14 22:09:04 +01:00
Wei Liu 02866fccb0 hypervisor: drop unused IrqRouting struct from MSHV
Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-07-14 22:09:04 +01:00
Wei Liu 4a1eab11b4 hypervisor: do not export VcpuExit
It is not used anywhere outside of the hypervisor crate.

Signed-off-by: Dev Rajput <t-devrajput@microsoft.com>
Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-07-14 16:37:47 +01:00
Wei Liu 47b5581c50 hypervisor: drop a level of indirection for MSHV's DeviceFd
Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-07-14 08:09:50 +01:00
Wei Liu ddad5f3510 hypervisor: allow downcasting to KVM / MSHV device fd
Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-07-14 08:09:50 +01:00
Wei Liu e1cf889dbd hypervisor: use UserMemoryRegion in the Vm trait
Signed-off-by: Dev Rajput <t-devrajput@microsoft.com>
Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-07-14 07:55:48 +01:00
Wei Liu 5894b5370c hypervisor: transform between UserMemoryRegion and hypervisor structs
Signed-off-by: Dev Rajput <t-devrajput@microsoft.com>
Signed-off-by: Wei Liu <liuwe@microsoft.com>
2022-07-14 07:55:48 +01:00
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
Jinank Jain ada85f68f6 hypervisor: mshv: Override hypervisor R/W behavior for unknown MSR
By default Microsoft Hypervisor send a GP to the guest if it tries
read/write an unimplemented MSR from the hypervisor prospective. Instead
change this behavior to ignore read/write operations for unimplemented
MSRs

Signed-off-by: Jinank Jain <jinankjain@microsoft.com>
2022-06-09 20:53:58 +01:00
Maksym Pavlenko 3a0429c998 cargo: Clean up serde dependencies
There is no need to include serde_derive separately,
as it can be specified as serde feature instead.

Signed-off-by: Maksym Pavlenko <pavlenko.maksym@gmail.com>
2022-05-18 08:21:19 +02:00
Rob Bradford 4ff0686d37 hypervisor: mshv: Move CpuIdEntry alias into x86_64 module
This is consistent with kvm and correctly reflects the architectural
dependency.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2022-05-13 15:39:22 +02:00
Rob Bradford 3ffc105f83 hypervisor, vm-device: Relocate InterruptSourceConfig
Move this enum from vm-device to hypervisor crate so that hypervisor
crate does not gain an extra dependency.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2022-05-11 11:19:14 +01:00
Rob Bradford 3f9e8d676a hypervisor: Move creation of irq routing struct to hypervisor crate
This removes the requirement to leak as many datastructures from the
hypervisor crate into the vmm crate.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2022-05-11 11:19:14 +01:00
Rob Bradford 387d56879b vmm, hypervisor: Clean up nomenclature around offloading VM operations
The trait and functionality is about operations on the VM rather than
the VMM so should be named appropriately. This clashed with with
existing struct for the concrete implementation that was renamed
appropriately.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2022-05-10 13:10:01 +01:00