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hypervisor: Add guest pause notification

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Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
This commit is contained in:
Sebastien Boeuf
2020-06-23 16:42:00 +02:00
parent 9fa8438063
commit 309924eca8
2 changed files with 21 additions and 0 deletions
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10
hypervisor/src/kvm/mod.rs
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@@ -525,6 +525,16 @@ impl cpu::Vcpu for KvmVcpu {
.get_vcpu_events()
.map_err(|e| cpu::HypervisorCpuError::GetVcpuEvents(e.into()))
}
#[cfg(target_arch = "x86_64")]
///
/// Let the guest know that it has been paused, which prevents from
/// potential soft lockups when being resumed.
///
fn notify_guest_clock_paused(&self) -> cpu::Result<()> {
self.fd
.kvmclock_ctrl()
.map_err(|e| cpu::HypervisorCpuError::NotifyGuestClockPaused(e.into()))
}
#[cfg(any(target_arch = "arm", target_arch = "aarch64"))]
fn vcpu_init(&self, kvi: &VcpuInit) -> cpu::Result<()> {
self.fd