diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h
index 97918336062e..ae4ea1f9594f 100644
--- a/arch/x86/include/asm/cpufeatures.h
+++ b/arch/x86/include/asm/cpufeatures.h
@@ -475,6 +475,7 @@
 #define X86_FEATURE_TSA_SQ_NO          (21*32+11) /* "" AMD CPU not vulnerable to TSA-SQ */
 #define X86_FEATURE_TSA_L1_NO          (21*32+12) /* "" AMD CPU not vulnerable to TSA-L1 */
 #define X86_FEATURE_CLEAR_CPU_BUF_VM   (21*32+13) /* "" Clear CPU buffers using VERW before VMRUN */
+#define X86_FEATURE_IBPB_EXIT_TO_USER  (21*32+14) /* Use IBPB on exit-to-userspace, see VMSCAPE bug */
 
 /*
  * BUG word(s)
diff --git a/arch/x86/include/asm/entry-common.h b/arch/x86/include/asm/entry-common.h
index fb2809b20b0a..bb0a5ecc807f 100644
--- a/arch/x86/include/asm/entry-common.h
+++ b/arch/x86/include/asm/entry-common.h
@@ -83,6 +83,13 @@ static inline void arch_exit_to_user_mode_prepare(struct pt_regs *regs,
 	 * 8 (ia32) bits.
 	 */
 	choose_random_kstack_offset(rdtsc());
+
+	/* Avoid unnecessary reads of 'x86_ibpb_exit_to_user' */
+	if (cpu_feature_enabled(X86_FEATURE_IBPB_EXIT_TO_USER) &&
+	    this_cpu_read(x86_ibpb_exit_to_user)) {
+		indirect_branch_prediction_barrier();
+		this_cpu_write(x86_ibpb_exit_to_user, false);
+	}
 }
 #define arch_exit_to_user_mode_prepare arch_exit_to_user_mode_prepare
 
diff --git a/arch/x86/include/asm/nospec-branch.h b/arch/x86/include/asm/nospec-branch.h
index 04f5a41c3a04..fb469ace3839 100644
--- a/arch/x86/include/asm/nospec-branch.h
+++ b/arch/x86/include/asm/nospec-branch.h
@@ -559,6 +559,8 @@ void alternative_msr_write(unsigned int msr, u64 val, unsigned int feature)
 
 extern u64 x86_pred_cmd;
 
+DECLARE_PER_CPU(bool, x86_ibpb_exit_to_user);
+
 static inline void indirect_branch_prediction_barrier(void)
 {
 	alternative_msr_write(MSR_IA32_PRED_CMD, x86_pred_cmd, X86_FEATURE_USE_IBPB);
diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c
index 332c6f24280d..2f9824aecfbf 100644
--- a/arch/x86/kernel/cpu/bugs.c
+++ b/arch/x86/kernel/cpu/bugs.c
@@ -60,6 +60,14 @@ EXPORT_SYMBOL_GPL(x86_spec_ctrl_base);
 DEFINE_PER_CPU(u64, x86_spec_ctrl_current);
 EXPORT_SYMBOL_GPL(x86_spec_ctrl_current);
 
+/*
+ * Set when the CPU has run a potentially malicious guest. An IBPB will
+ * be needed to before running userspace. That IBPB will flush the branch
+ * predictor content.
+ */
+DEFINE_PER_CPU(bool, x86_ibpb_exit_to_user);
+EXPORT_PER_CPU_SYMBOL_GPL(x86_ibpb_exit_to_user);
+
 u64 x86_pred_cmd __ro_after_init = PRED_CMD_IBPB;
 EXPORT_SYMBOL_GPL(x86_pred_cmd);
 
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 5088065ac704..7238686a49bb 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -10864,6 +10864,15 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
 	if (vcpu->arch.guest_fpu.xfd_err)
 		wrmsrl(MSR_IA32_XFD_ERR, 0);
 
+	/*
+	 * Mark this CPU as needing a branch predictor flush before running
+	 * userspace. Must be done before enabling preemption to ensure it gets
+	 * set for the CPU that actually ran the guest, and not the CPU that it
+	 * may migrate to.
+	 */
+	if (cpu_feature_enabled(X86_FEATURE_IBPB_EXIT_TO_USER))
+		this_cpu_write(x86_ibpb_exit_to_user, true);
+
 	/*
 	 * Consume any pending interrupts, including the possible source of
 	 * VM-Exit on SVM and any ticks that occur between VM-Exit and now.