diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h
index 1c8cde00df02..9fe8a408f182 100644
--- a/arch/x86/include/asm/cpufeatures.h
+++ b/arch/x86/include/asm/cpufeatures.h
@@ -439,6 +439,7 @@
 #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 f27d6cecd803..4ab6de4682de 100644
--- a/arch/x86/include/asm/entry-common.h
+++ b/arch/x86/include/asm/entry-common.h
@@ -86,6 +86,13 @@ static inline void arch_exit_to_user_mode_prepare(struct pt_regs *regs,
 	 * 6 (ia32) bits.
 	 */
 	choose_random_kstack_offset(rdtsc() & 0xFF);
+
+	/* 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 b62ce153a3c4..0a366da54087 100644
--- a/arch/x86/include/asm/nospec-branch.h
+++ b/arch/x86/include/asm/nospec-branch.h
@@ -396,6 +396,8 @@ 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 9e313ee9ba66..dd3379c00c4a 100644
--- a/arch/x86/kernel/cpu/bugs.c
+++ b/arch/x86/kernel/cpu/bugs.c
@@ -59,6 +59,14 @@ 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 52c59c3bcb91..2ba297da7bde 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -10023,6 +10023,15 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
 
 	static_call(kvm_x86_handle_exit_irqoff)(vcpu);
 
+	/*
+	 * 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.