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hypervisor, vmm: Feature guard KVM specific code

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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>
This commit is contained in:
Muminul Islam
2020-12-04 15:35:29 -08:00
committed by Samuel Ortiz
parent 47f59409db
commit 9ce6c3b75c
8 changed files with 36 additions and 24 deletions
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4
hypervisor/src/cpu.rs
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@@ -272,10 +272,12 @@ pub trait Vcpu: Send + Sync {
/// Setup the model-specific registers (MSR) for this vCPU.
///
fn set_msrs(&self, msrs: &MsrEntries) -> Result<usize>;
#[cfg(feature = "kvm")]
///
/// Returns the vcpu's current "multiprocessing state".
///
fn get_mp_state(&self) -> Result<MpState>;
#[cfg(feature = "kvm")]
///
/// Sets the vcpu's current "multiprocessing state".
///
@@ -312,7 +314,7 @@ pub trait Vcpu: Send + Sync {
/// of the vcpu.
///
fn set_vcpu_events(&self, events: &VcpuEvents) -> Result<()>;
#[cfg(target_arch = "x86_64")]
#[cfg(all(feature = "kvm", target_arch = "x86_64"))]
///
/// Let the guest know that it has been paused, which prevents from
/// potential soft lockups when being resumed.