add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/arch/x86/kernel/crash.c
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@@ -37,7 +37,6 @@
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 #include <linux/kdebug.h>
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 #include <asm/cpu.h>
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 #include <asm/reboot.h>
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-#include <asm/virtext.h>
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 #include <asm/intel_pt.h>
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 #include <asm/crash.h>
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 #include <asm/cmdline.h>
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@@ -93,15 +92,6 @@
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 	 * VMCLEAR VMCSs loaded on all cpus if needed.
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 	 */
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 	cpu_crash_vmclear_loaded_vmcss();
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-
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-	/* Disable VMX or SVM if needed.
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-	 *
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-	 * We need to disable virtualization on all CPUs.
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-	 * Having VMX or SVM enabled on any CPU may break rebooting
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-	 * after the kdump kernel has finished its task.
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-	 */
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-	cpu_emergency_vmxoff();
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-	cpu_emergency_svm_disable();
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 	/*
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 	 * Disable Intel PT to stop its logging
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@@ -161,12 +151,7 @@
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 	 */
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 	cpu_crash_vmclear_loaded_vmcss();
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-	/* Booting kdump kernel with VMX or SVM enabled won't work,
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-	 * because (among other limitations) we can't disable paging
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-	 * with the virt flags.
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-	 */
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-	cpu_emergency_vmxoff();
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-	cpu_emergency_svm_disable();
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+	cpu_emergency_disable_virtualization();
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 	/*
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 	 * Disable Intel PT to stop its logging