cloud-hypervisor/vmm
Sebastien Boeuf b92fe648e9 vmm: cpu: Disable KVM_FEATURE_ASYNC_PF_INT in CPUID
By disabling this KVM feature, we prevent the guest from using APF
(Asynchronous Page Fault) mechanism. The kernel has recently switched to
using interrupts to notify about a page being ready, but for some
reasons, this is causing unexpected behavior with Cloud Hypervisor, as
it will make the vcpu thread spin at 100%.

While investigating the issue, it's better to disable the KVM feature to
prevent 100% CPU usage in some cases.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2021-04-15 10:08:45 +01:00
..
src vmm: cpu: Disable KVM_FEATURE_ASYNC_PF_INT in CPUID 2021-04-15 10:08:45 +01:00
Cargo.toml build(deps): bump libc from 0.2.92 to 0.2.93 2021-04-06 17:03:25 +00:00