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>

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 functiona

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>

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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
f

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>

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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
hyper

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>

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hypervisor: kvm: check API compatibility

Signed-off-by: Wei Liu <liuwe@microsoft.com>

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>

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

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>

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vmm: hypervisor: fix white space issues

Signed-off-by: Wei Liu <liuwe@microsoft.com>

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: Mumi

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>

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hypervisor, arch: Fix warnings introduced in hypervisor crate

This commit fixes some warnings introduced in the previous
hyperviosr crate PR.Removed some unused variables from arch/aarch64
module.

hypervisor, arch: Fix warnings introduced in hypervisor crate

This commit fixes some warnings introduced in the previous
hyperviosr crate PR.Removed some unused variables from arch/aarch64
module.

Signed-off-by: Muminul Islam <muislam@microsoft.com>

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hypervisor: Add Hypervisor trait

As the only hypervisor that Cloud-Hypervisor supports is KVM, the
Hypervisor trait accomodates for the upcoming KVM implementation.

This trait will be instanciated

hypervisor: Add Hypervisor trait

As the only hypervisor that Cloud-Hypervisor supports is KVM, the
Hypervisor trait accomodates for the upcoming KVM implementation.

This trait will be instanciated at build time through hypervisor
specific features, i.e. it's not aiming at run-time selection of
hypervisors for Cloud-Hypervisor.

Signed-off-by: Muminul Islam <muislam@microsoft.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

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