KVM: kvm_pdptr_read() may sleep

Annotate it thusly. Signed-off-by: Avi Kivity <avi@redhat.com>
2010-05-04 13:00:55 +03:00 · 2010-05-04 13:00:55 +03:00 · 08acfa1871
parent 914ebccd2d
commit 08acfa1871
1 changed files with 2 additions and 0 deletions
--- 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);