KVM: kvm_pdptr_read() may sleep

Annotate it thusly.

Signed-off-by: Avi Kivity <avi@redhat.com>

diff --git a/arch/x86/kvm/kvm_cache_regs.h b/arch/x86/kvm/kvm_cache_regs.h
index cff851c..d2a98f8 100644 (file)
--- a/arch/x86/kvm/kvm_cache_regs.h
+++ b/arch/x86/kvm/kvm_cache_regs.h
@@ -36,6 +36,8 @@ static inline void kvm_rip_write(struct kvm_vcpu *vcpu, unsigned long val)
 
 static inline u64 kvm_pdptr_read(struct kvm_vcpu *vcpu, int index)
 {
+       might_sleep();  /* on svm */
+
        if (!test_bit(VCPU_EXREG_PDPTR,
                      (unsigned long *)&vcpu->arch.regs_avail))
                kvm_x86_ops->cache_reg(vcpu, VCPU_EXREG_PDPTR);