Merge tag 'kvm-4.20-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm

[sfrench/cifs-2.6.git] / arch / arm64 / kvm / hyp / sysreg-sr.c

diff --git a/arch/arm64/kvm/hyp/sysreg-sr.c b/arch/arm64/kvm/hyp/sysreg-sr.c
index 8dc28531820414061040c657e6066815d248e589..68d6f7c3b237dc1713fa36bc55d4a27fef2e5949 100644 (file)
--- a/arch/arm64/kvm/hyp/sysreg-sr.c
+++ b/arch/arm64/kvm/hyp/sysreg-sr.c
@@ -305,3 +305,14 @@ void kvm_vcpu_put_sysregs(struct kvm_vcpu *vcpu)
 
        vcpu->arch.sysregs_loaded_on_cpu = false;
 }
+
+void __hyp_text __kvm_enable_ssbs(void)
+{
+       u64 tmp;
+
+       asm volatile(
+       "mrs    %0, sctlr_el2\n"
+       "orr    %0, %0, %1\n"
+       "msr    sctlr_el2, %0"
+       : "=&r" (tmp) : "L" (SCTLR_ELx_DSSBS));
+}