Commit 453d9c57 authored by Jan Kiszka's avatar Jan Kiszka Committed by Marcelo Tosatti

KVM: x86: Issue smp_call_function_many with preemption disabled

smp_call_function_many is specified to be called only with preemption
disabled. Fulfill this requirement.
Signed-off-by: default avatarJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: default avatarMarcelo Tosatti <mtosatti@redhat.com>
parent 97e69aa6
...@@ -3978,8 +3978,10 @@ int kvm_emulate_wbinvd(struct kvm_vcpu *vcpu) ...@@ -3978,8 +3978,10 @@ int kvm_emulate_wbinvd(struct kvm_vcpu *vcpu)
return X86EMUL_CONTINUE; return X86EMUL_CONTINUE;
if (kvm_x86_ops->has_wbinvd_exit()) { if (kvm_x86_ops->has_wbinvd_exit()) {
preempt_disable();
smp_call_function_many(vcpu->arch.wbinvd_dirty_mask, smp_call_function_many(vcpu->arch.wbinvd_dirty_mask,
wbinvd_ipi, NULL, 1); wbinvd_ipi, NULL, 1);
preempt_enable();
cpumask_clear(vcpu->arch.wbinvd_dirty_mask); cpumask_clear(vcpu->arch.wbinvd_dirty_mask);
} }
wbinvd(); wbinvd();
......
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