initial commit

2026-05-26 02:08:47 -05:00
commit aac5d72fe4
60 changed files with 12096 additions and 0 deletions
@@ -0,0 +1,41 @@
+--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
+@@ -864,6 +864,27 @@
+ 	}
+ }
+ 
+#ifdef CONFIG_X86_64
+static bool __init x86_has_x86_64_v3(void)
+{
+	return boot_cpu_has(X86_FEATURE_CX16) &&
+	       boot_cpu_has(X86_FEATURE_LAHF_LM) &&
+	       boot_cpu_has(X86_FEATURE_POPCNT) &&
+	       boot_cpu_has(X86_FEATURE_XMM3) &&
+	       boot_cpu_has(X86_FEATURE_SSSE3) &&
+	       boot_cpu_has(X86_FEATURE_XMM4_1) &&
+	       boot_cpu_has(X86_FEATURE_XMM4_2) &&
+	       boot_cpu_has(X86_FEATURE_AVX) &&
+	       boot_cpu_has(X86_FEATURE_AVX2) &&
+	       boot_cpu_has(X86_FEATURE_BMI1) &&
+	       boot_cpu_has(X86_FEATURE_BMI2) &&
+	       boot_cpu_has(X86_FEATURE_F16C) &&
+	       boot_cpu_has(X86_FEATURE_FMA) &&
+	       boot_cpu_has(X86_FEATURE_MOVBE) &&
+	       boot_cpu_has(X86_FEATURE_ABM);
+}
+#endif
+
+ /*
+  * Determine if we were loaded by an EFI loader.  If so, then we have also been
+  * passed the efi memmap, systab, etc., so we should use these data structures
+@@ -931,6 +952,10 @@
+ 
+ 	idt_setup_early_traps();
+ 	early_cpu_init();
+#ifdef CONFIG_X86_64
+	if (!x86_has_x86_64_v3())
+		panic("This kernel requires an x86_64-v3 CPU\n");
+#endif
+ 	jump_label_init();
+ 	static_call_init();
+ 	early_ioremap_init();