diff options
Diffstat (limited to 'src/interface/efi/efi_reboot.c')
| -rw-r--r-- | src/interface/efi/efi_reboot.c | 32 |
1 files changed, 29 insertions, 3 deletions
diff --git a/src/interface/efi/efi_reboot.c b/src/interface/efi/efi_reboot.c index 35919221e..cc35ef7ad 100644 --- a/src/interface/efi/efi_reboot.c +++ b/src/interface/efi/efi_reboot.c @@ -22,6 +22,7 @@ */ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); +FILE_SECBOOT ( PERMITTED ); /** * @file @@ -31,19 +32,44 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); */ #include <errno.h> +#include <string.h> #include <ipxe/efi/efi.h> +#include <ipxe/efi/Guid/GlobalVariable.h> #include <ipxe/reboot.h> /** * Reboot system * - * @v warm Perform a warm reboot + * @v flags Reboot flags */ -static void efi_reboot ( int warm ) { +static void efi_reboot ( int flags ) { EFI_RUNTIME_SERVICES *rs = efi_systab->RuntimeServices; + static CHAR16 wname[] = EFI_OS_INDICATIONS_VARIABLE_NAME; + UINT64 osind; + UINT32 attrs; + EFI_RESET_TYPE type; + EFI_STATUS efirc; + int rc; + + /* Request boot to firmware setup, if applicable */ + if ( flags & REBOOT_SETUP ) { + osind = EFI_OS_INDICATIONS_BOOT_TO_FW_UI; + attrs = ( EFI_VARIABLE_BOOTSERVICE_ACCESS | + EFI_VARIABLE_RUNTIME_ACCESS | + EFI_VARIABLE_NON_VOLATILE ); + if ( ( efirc = rs->SetVariable ( wname, &efi_global_variable, + attrs, sizeof ( osind ), + &osind ) ) != 0 ) { + rc = -EEFI ( efirc ); + DBGC ( efi_systab, "EFI could not set %ls: %s\n", + wname, strerror ( rc ) ); + /* Continue to reboot anyway */ + } + } /* Use runtime services to reset system */ - rs->ResetSystem ( ( warm ? EfiResetWarm : EfiResetCold ), 0, 0, NULL ); + type = ( ( flags & REBOOT_WARM ) ? EfiResetWarm : EfiResetCold ); + rs->ResetSystem ( type, 0, 0, NULL ); } /** |