arm64: KVM: Report SMCCC_ARCH_WORKAROUND_1 BP hardening support

[android-x86/kernel.git] / arch / arm / include / asm / kvm_host.h

diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h
index 2d19e02..9fe1043 100644 (file)
--- a/arch/arm/include/asm/kvm_host.h
+++ b/arch/arm/include/asm/kvm_host.h
@@ -57,6 +57,9 @@ struct kvm_arch {
        /* VTTBR value associated with below pgd and vmid */
        u64    vttbr;
 
+       /* The last vcpu id that ran on each physical CPU */
+       int __percpu *last_vcpu_ran;
+
        /* Timer */
        struct arch_timer_kvm   timer;
 
@@ -315,4 +318,10 @@ static inline int kvm_arm_vcpu_arch_has_attr(struct kvm_vcpu *vcpu,
        return -ENXIO;
 }
 
+static inline bool kvm_arm_harden_branch_predictor(void)
+{
+       /* No way to detect it yet, pretend it is not there. */
+       return false;
+}
+
 #endif /* __ARM_KVM_HOST_H__ */