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/*
* Copyright (C) 2014 Intel Corporation; author Matt Fleming
* Copyright (c) 2014 Red Hat, Inc., Mark Salter <msalter@redhat.com>
*/
#include <linux/efi.h>
#include <linux/reboot.h>
int efi_reboot_quirk_mode = -1;
void efi_reboot(enum reboot_mode reboot_mode, const char *__unused)
{
int efi_mode;
if (!efi_enabled(EFI_RUNTIME_SERVICES))
return;
switch (reboot_mode) {
case REBOOT_WARM:
case REBOOT_SOFT:
efi_mode = EFI_RESET_WARM;
break;
default:
efi_mode = EFI_RESET_COLD;
break;
}
/*
* If a quirk forced an EFI reset mode, always use that.
*/
if (efi_reboot_quirk_mode != -1)
efi_mode = efi_reboot_quirk_mode;
efi.reset_system(efi_mode, EFI_SUCCESS, 0, NULL);
}
bool __weak efi_poweroff_required(void)
{
return false;
}
static void efi_power_off(void)
{
efi.reset_system(EFI_RESET_SHUTDOWN, EFI_SUCCESS, 0, NULL);
}
static int __init efi_shutdown_init(void)
{
if (!efi_enabled(EFI_RUNTIME_SERVICES))
return -ENODEV;
if (efi_poweroff_required())
pm_power_off = efi_power_off;
return 0;
}
late_initcall(efi_shutdown_init);
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