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HV: operate schedule lock on correct vcpu

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Lock should be on target vcpu in function pause_vcpu(), not current vcpu.

Signed-off-by: Victor Sun <victor.sun@intel.com>
Reviewed-by: Yin Fengwei <fengwei.yin@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Victor Sun 2018-05-16 15:59:16 +08:00 committed by lijinxia
parent 71e1ae17ce
commit a6780652f3
1 changed files with 3 additions and 3 deletions
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6
hypervisor/arch/x86/guest/vcpu.c
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@ -281,11 +281,11 @@ void pause_vcpu(struct vcpu *vcpu, enum vcpu_state new_state)
vcpu->prev_state = vcpu->state; vcpu->prev_state = vcpu->state;
vcpu->state = new_state; vcpu->state = new_state;
get_schedule_lock(pcpu_id); get_schedule_lock(vcpu->pcpu_id);
if (atomic_load_acq_32(&vcpu->running) == 1) { if (atomic_load_acq_32(&vcpu->running) == 1) {
remove_vcpu_from_runqueue(vcpu); remove_vcpu_from_runqueue(vcpu);
make_reschedule_request(vcpu); make_reschedule_request(vcpu);
release_schedule_lock(pcpu_id); release_schedule_lock(vcpu->pcpu_id);
if (vcpu->pcpu_id != pcpu_id) { if (vcpu->pcpu_id != pcpu_id) {
while (atomic_load_acq_32(&vcpu->running) == 1) while (atomic_load_acq_32(&vcpu->running) == 1)
@ -293,7 +293,7 @@ void pause_vcpu(struct vcpu *vcpu, enum vcpu_state new_state)
} }
} else { } else {
remove_vcpu_from_runqueue(vcpu); remove_vcpu_from_runqueue(vcpu);
release_schedule_lock(pcpu_id); release_schedule_lock(vcpu->pcpu_id);
} }
} }