KVM: VMX: Enable XSAVE/XRSTOR for guest

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / x86 / kvm / kvm_cache_regs.h

diff --git a/arch/x86/kvm/kvm_cache_regs.h b/arch/x86/kvm/kvm_cache_regs.h
index cff851cf5322f59db69fc2b69d3ea306480e96d6..6491ac8e755b82f486cabb4cd00247a84ad5f503 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);
@@ -69,4 +71,10 @@ static inline ulong kvm_read_cr4(struct kvm_vcpu *vcpu)
        return kvm_read_cr4_bits(vcpu, ~0UL);
 }
 
+static inline u64 kvm_read_edx_eax(struct kvm_vcpu *vcpu)
+{
+       return (kvm_register_read(vcpu, VCPU_REGS_RAX) & -1u)
+               | ((u64)(kvm_register_read(vcpu, VCPU_REGS_RDX) & -1u) << 32);
+}
+
 #endif