From 5e8555e3ea324daaf0e38422bcba48c4df33a0d9 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 07 Nov 2023 06:17:58 +0000
Subject: [PATCH] gmac read mac form eeprom

---
 kernel/arch/x86/kvm/x86.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/kernel/arch/x86/kvm/x86.c b/kernel/arch/x86/kvm/x86.c
index 417abc9..9829e0f 100644
--- a/kernel/arch/x86/kvm/x86.c
+++ b/kernel/arch/x86/kvm/x86.c
@@ -6875,6 +6875,13 @@
 		goto out;
 	}
 
+#ifdef CONFIG_PREEMPT_RT_FULL
+	if (!boot_cpu_has(X86_FEATURE_CONSTANT_TSC)) {
+		printk(KERN_ERR "RT requires X86_FEATURE_CONSTANT_TSC\n");
+		return -EOPNOTSUPP;
+	}
+#endif
+
 	r = kvm_mmu_module_init();
 	if (r)
 		goto out_free_percpu;

--
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