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

arch/x86/kvm/x86.c

+2 −0
Original line number Diff line number Diff line
@@ -3978,8 +3978,10 @@ int kvm_emulate_wbinvd(struct kvm_vcpu *vcpu) 
		return X86EMUL_CONTINUE;



	if (kvm_x86_ops->has_wbinvd_exit()) {

		preempt_disable();

		smp_call_function_many(vcpu->arch.wbinvd_dirty_mask,

				wbinvd_ipi, NULL, 1);

		preempt_enable();

		cpumask_clear(vcpu->arch.wbinvd_dirty_mask);

	}

	wbinvd();