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authorJan Kiszka <jan.kiszka@siemens.com>2010-11-01 14:01:13 +0100
committerMarcelo Tosatti <mtosatti@redhat.com>2010-11-05 14:42:27 -0200
commit453d9c57e27b4401bc3e98906bcac31ae8be0165 (patch)
tree53f56dd0d1001b0c78ebfda795cab7d1e0469e1d
parent97e69aa62f8b5d338d6cff49be09e37cc1262838 (diff)
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: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
-rw-r--r--arch/x86/kvm/x86.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 463c65b8f93..cdac9e592aa 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -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();