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hypervisor: Add get/set clock API

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Add the hypervisor wrappers to expose KVM_GET_CLOCK and KVM_SET_CLOCK
from the KVM API.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
This commit is contained in:
Sebastien Boeuf
2020-06-23 11:07:06 +02:00
committed by Rob Bradford
parent 4b64f2a027
commit 68ec0eb7a8
2 changed files with 34 additions and 2 deletions
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18
hypervisor/src/kvm/mod.rs
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@@ -57,8 +57,8 @@ pub use kvm_ioctls::{Cap, Kvm};
/// Export generically-named wrappers of kvm-bindings for Unix-based platforms
///
pub use {
kvm_bindings::kvm_create_device as CreateDevice, kvm_bindings::kvm_irq_routing as IrqRouting,
kvm_bindings::kvm_mp_state as MpState,
kvm_bindings::kvm_clock_data as ClockData, kvm_bindings::kvm_create_device as CreateDevice,
kvm_bindings::kvm_irq_routing as IrqRouting, kvm_bindings::kvm_mp_state as MpState,
kvm_bindings::kvm_userspace_memory_region as MemoryRegion,
kvm_bindings::kvm_vcpu_events as VcpuEvents, kvm_ioctls::DeviceFd, kvm_ioctls::IoEventAddress,
kvm_ioctls::VcpuExit,
@@ -211,6 +211,20 @@ impl vm::Vm for KvmVm {
.map_err(|e| vm::HypervisorVmError::EnableSplitIrq(e.into()))?;
Ok(())
}
/// Retrieve guest clock.
#[cfg(target_arch = "x86_64")]
fn get_clock(&self) -> vm::Result<ClockData> {
self.fd
.get_clock()
.map_err(|e| vm::HypervisorVmError::GetClock(e.into()))
}
/// Set guest clock.
#[cfg(target_arch = "x86_64")]
fn set_clock(&self, data: &ClockData) -> vm::Result<()> {
self.fd
.set_clock(data)
.map_err(|e| vm::HypervisorVmError::SetClock(e.into()))
}
}
/// Wrapper over KVM system ioctls.
pub struct KvmHyperVisor {