diff options
| author | Matt Fleming <matt.fleming@intel.com> | 2014-06-13 12:22:22 +0100 |
|---|---|---|
| committer | Matt Fleming <matt.fleming@intel.com> | 2014-07-18 21:23:51 +0100 |
| commit | 8562c99cdd30217dea3609e268572f8764f401a5 (patch) | |
| tree | 4a494dab6d089e0030255d2c5f6521b35321b97f /drivers/firmware | |
| parent | f4f75ad5741fe0331bbe1f5c42b906cda299f26b (diff) | |
efi/reboot: Add generic wrapper around EfiResetSystem()
Implement efi_reboot(), which is really just a wrapper around the
EfiResetSystem() EFI runtime service, but it does at least allow us to
funnel all callers through a single location.
It also simplifies the callsites since users no longer need to check to
see whether EFI_RUNTIME_SERVICES are enabled.
Cc: Tony Luck <tony.luck@intel.com>
Tested-by: Mark Salter <msalter@redhat.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Diffstat (limited to 'drivers/firmware')
| -rw-r--r-- | drivers/firmware/efi/Makefile | 2 | ||||
| -rw-r--r-- | drivers/firmware/efi/reboot.c | 26 |
2 files changed, 27 insertions, 1 deletions
diff --git a/drivers/firmware/efi/Makefile b/drivers/firmware/efi/Makefile index a204d1474ce..d8be608a9f3 100644 --- a/drivers/firmware/efi/Makefile +++ b/drivers/firmware/efi/Makefile @@ -1,7 +1,7 @@ # # Makefile for linux kernel # -obj-$(CONFIG_EFI) += efi.o vars.o +obj-$(CONFIG_EFI) += efi.o vars.o reboot.o obj-$(CONFIG_EFI_VARS) += efivars.o obj-$(CONFIG_EFI_VARS_PSTORE) += efi-pstore.o obj-$(CONFIG_UEFI_CPER) += cper.o diff --git a/drivers/firmware/efi/reboot.c b/drivers/firmware/efi/reboot.c new file mode 100644 index 00000000000..81bf925f70f --- /dev/null +++ b/drivers/firmware/efi/reboot.c @@ -0,0 +1,26 @@ +/* + * 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> + +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; + } + + efi.reset_system(efi_mode, EFI_SUCCESS, 0, NULL); +} |