arm64: Add missing Falkor part number for branch predictor hardening

commit 16e574d7 upstream.

References to CPU part number MIDR_QCOM_FALKOR were dropped from the
mailing list patch due to mainline/arm64 branch dependency. So this
patch adds the missing part number.

Fixes: ec82b567 ("arm64: Implement branch predictor hardening for Falkor")
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Shanker Donthineni <shankerd@codeaurora.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

arch/arm64/kernel/cpu_errata.c

@@ -406,6 +406,15 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
 		.capability = ARM64_HARDEN_BP_POST_GUEST_EXIT,
 		MIDR_ALL_VERSIONS(MIDR_QCOM_FALKOR_V1),
 	},
+	{
+		.capability = ARM64_HARDEN_BRANCH_PREDICTOR,
+		MIDR_ALL_VERSIONS(MIDR_QCOM_FALKOR),
+		.enable = qcom_enable_link_stack_sanitization,
+	},
+	{
+		.capability = ARM64_HARDEN_BP_POST_GUEST_EXIT,
+		MIDR_ALL_VERSIONS(MIDR_QCOM_FALKOR),
+	},
 	{
 		.capability = ARM64_HARDEN_BRANCH_PREDICTOR,
 		MIDR_ALL_VERSIONS(MIDR_BRCM_VULCAN),

arch/arm64/kvm/hyp/switch.c

@@ -371,8 +371,10 @@ int __hyp_text __kvm_vcpu_run(struct kvm_vcpu *vcpu)
 		u32 midr = read_cpuid_id();
 
 		/* Apply BTAC predictors mitigation to all Falkor chips */
-		if ((midr & MIDR_CPU_MODEL_MASK) == MIDR_QCOM_FALKOR_V1)
+		if (((midr & MIDR_CPU_MODEL_MASK) == MIDR_QCOM_FALKOR) ||
+		    ((midr & MIDR_CPU_MODEL_MASK) == MIDR_QCOM_FALKOR_V1)) {
 			__qcom_hyp_sanitize_btac_predictors();
+		}
 	}
 
 	fp_enabled = __fpsimd_enabled();