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| author |   Sean Christopherson <sean.j.christopherson@intel.com> | 2019-04-16 13:32:44 -0700 |
|---|---|---|
| committer |   Paolo Bonzini <pbonzini@redhat.com> | 2019-04-30 21:32:15 +0200 |
| commit | ee66e453db13d4837a0dcf9d43efa7a88603161b (patch) | |
| tree | 8cea01dbd8e86c1451a9d1e73df6de887a7037ab /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | KVM: VMX: Nop emulation of MSR_IA32_POWER_CTL (diff) | |
| download | wireguard-linux-ee66e453db13d4837a0dcf9d43efa7a88603161b.tar.xz wireguard-linux-ee66e453db13d4837a0dcf9d43efa7a88603161b.zip | |
KVM: lapic: Busy wait for timer to expire when using hv_timer
...now that VMX's preemption timer, i.e. the hv_timer, also adjusts its
programmed time based on lapic_timer_advance_ns. Without the delay, a
guest can see a timer interrupt arrive before the requested time when
KVM is using the hv_timer to emulate the guest's interrupt.
Fixes: c5ce8235cffa0 ("KVM: VMX: Optimize tscdeadline timer latency")
Cc: <stable@vger.kernel.org>
Cc: Wanpeng Li <wanpengli@tencent.com>
Reviewed-by: Liran Alon <liran.alon@oracle.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions