1 // SPDX-License-Identifier: GPL-2.0
52  * Reboot options and system auto-detection code provided by
53  * Dell Inc. so their systems "just work". :-)
63 		pr_info("%s series board detected. Selecting %s-method for reboots.\n",  in set_acpi_reboot()
64 			d->ident, "ACPI");  in set_acpi_reboot()
77 		pr_info("%s series board detected. Selecting %s-method for reboots.\n",  in set_bios_reboot()
78 			d->ident, "BIOS");  in set_bios_reboot()
91 		pr_info("%s series board detected. Selecting EFI-method for reboot.\n", d->ident);  in set_efi_reboot()
103 	 * that's what this book in front of me says -- it may only apply to  in machine_real_restart()
108 	 * safe side.  (Yes, CMOS_WRITE does outb_p's. -  Paul G.)  in machine_real_restart()
119 	/* Jump to the identity-mapped low memory code */  in machine_real_restart()
122 		     "rm" (real_mode_header->machine_real_restart_asm),  in machine_real_restart()
126 		     "m" (real_mode_header->machine_real_restart_asm),  in machine_real_restart()
143 		pr_info("%s series board detected. Selecting %s-method for reboots.\n",  in set_pci_reboot()
144 			d->ident, "PCI");  in set_pci_reboot()
153 		pr_info("%s series board detected. Selecting %s-method for reboot.\n",  in set_kbd_reboot()
154 			d->ident, "KBD");  in set_kbd_reboot()
173 	{	/* Handle reboot issue on Acer TravelMate X514-51T */
175 		.ident = "Acer TravelMate X514-51T",
178 			DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate X514-51T"),
233 	{	/* Handle problems with rebooting on ASRock Q1900DC-ITX */
235 		.ident = "ASRock Q1900DC-ITX",
238 			DMI_MATCH(DMI_BOARD_NAME, "Q1900DC-ITX"),
462 	/* Hewlett-Packard */
467 			DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
477 			DMI_MATCH(DMI_PRODUCT_NAME, "ZBOX-CI327NANO-GS-01"),
482 	{	/* Handle problems with rebooting on Sony VGN-Z540N */
484 		.ident = "Sony VGN-Z540N",
487 			DMI_MATCH(DMI_PRODUCT_NAME, "VGN-Z540N"),
533 /* RCU-protected callback to disable virtualization prior to reboot. */
557  * reboot.  VMX blocks INIT if the CPU is post-VMXON, and SVM blocks INIT if
587 	 * use NMIs as IPIs to tell the other CPUs to disable VMX/SVM and halt.  in emergency_reboot_disable_virtualization()
596 		/* Disable VMX/SVM and halt on other CPUs. */  in emergency_reboot_disable_virtualization()
738 	 * not receive the per-cpu timer interrupt which may trigger  in native_machine_shutdown()
798 	.halt = native_machine_halt,
826 	machine_ops.halt();  in machine_halt()
830 void machine_crash_shutdown(struct pt_regs *regs)  in machine_crash_shutdown()  argument
832 	machine_ops.crash_shutdown(regs);  in machine_crash_shutdown()
837 int crashing_cpu = -1;
846 static int crash_nmi_callback(unsigned int val, struct pt_regs *regs)  in crash_nmi_callback()  argument
862 		shootdown_callback(cpu, regs);  in crash_nmi_callback()
872 	halt();  in crash_nmi_callback()
880  * nmi_shootdown_cpus - Stop other CPUs via NMI
898 	 * Avoid certain doom if a shootdown already occurred; re-registering  in nmi_shootdown_cpus()
910 	atomic_set(&waiting_for_crash_ipi, num_online_cpus() - 1);  in nmi_shootdown_cpus()
929 		msecs--;  in nmi_shootdown_cpus()
933 	 * Leave the nmi callback set, shootdown is a one-time thing.  Clearing  in nmi_shootdown_cpus()
950 void run_crash_ipi_callback(struct pt_regs *regs)  in run_crash_ipi_callback()  argument
953 		crash_nmi_callback(0, regs);  in run_crash_ipi_callback()
957 void __noreturn nmi_panic_self_stop(struct pt_regs *regs)  in nmi_panic_self_stop()  argument
961 		run_crash_ipi_callback(regs);  in nmi_panic_self_stop()
974 void run_crash_ipi_callback(struct pt_regs *regs)  in run_crash_ipi_callback()  argument