diff options
| author | Wanpeng Li <[email protected]> | 2021-06-07 00:19:43 -0700 |
|---|---|---|
| committer | Paolo Bonzini <[email protected]> | 2021-06-08 12:22:26 -0400 |
| commit | e898da784aed0ea65f7672d941c01dc9b79e6299 (patch) | |
| tree | 32206b1e1480ff8574a97ef8f569444858c117a4 /drivers/fpga/fpga-bridge.c | |
| parent | 4f13d471e5d11034d56161af56d0f9396bc0b384 (diff) | |
KVM: LAPIC: Write 0 to TMICT should also cancel vmx-preemption timer
According to the SDM 10.5.4.1:
A write of 0 to the initial-count register effectively stops the local
APIC timer, in both one-shot and periodic mode.
However, the lapic timer oneshot/periodic mode which is emulated by vmx-preemption
timer doesn't stop by writing 0 to TMICT since vmx->hv_deadline_tsc is still
programmed and the guest will receive the spurious timer interrupt later. This
patch fixes it by also cancelling the vmx-preemption timer when writing 0 to
the initial-count register.
Reviewed-by: Sean Christopherson <[email protected]>
Signed-off-by: Wanpeng Li <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
Diffstat (limited to 'drivers/fpga/fpga-bridge.c')
0 files changed, 0 insertions, 0 deletions