diff options
Diffstat (limited to 'arch/x86/kernel')
| -rw-r--r-- | arch/x86/kernel/reboot.c | 9 | ||||
| -rw-r--r-- | arch/x86/kernel/sysfb_efi.c | 15 |
2 files changed, 24 insertions, 0 deletions
diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c index ab0adc0fa5db..a9b31eb815f2 100644 --- a/arch/x86/kernel/reboot.c +++ b/arch/x86/kernel/reboot.c @@ -535,6 +535,15 @@ static void native_machine_emergency_restart(void) mode = reboot_mode == REBOOT_WARM ? 0x1234 : 0; *((unsigned short *)__va(0x472)) = mode; + /* + * If an EFI capsule has been registered with the firmware then + * override the reboot= parameter. + */ + if (efi_capsule_pending(NULL)) { + pr_info("EFI capsule is pending, forcing EFI reboot.\n"); + reboot_type = BOOT_EFI; + } + for (;;) { /* Could also try the reset bit in the Hammer NB */ switch (reboot_type) { diff --git a/arch/x86/kernel/sysfb_efi.c b/arch/x86/kernel/sysfb_efi.c index 5da924bbf0a0..623965e86b65 100644 --- a/arch/x86/kernel/sysfb_efi.c +++ b/arch/x86/kernel/sysfb_efi.c @@ -68,6 +68,21 @@ struct efifb_dmi_info efifb_dmi_list[] = { [M_UNKNOWN] = { NULL, 0, 0, 0, 0, OVERRIDE_NONE } }; +void efifb_setup_from_dmi(struct screen_info *si, const char *opt) +{ + int i; + + for (i = 0; i < M_UNKNOWN; i++) { + if (efifb_dmi_list[i].base != 0 && + !strcmp(opt, efifb_dmi_list[i].optname)) { + si->lfb_base = efifb_dmi_list[i].base; + si->lfb_linelength = efifb_dmi_list[i].stride; + si->lfb_width = efifb_dmi_list[i].width; + si->lfb_height = efifb_dmi_list[i].height; + } + } +} + #define choose_value(dmivalue, fwvalue, field, flags) ({ \ typeof(fwvalue) _ret_ = fwvalue; \ if ((flags) & (field)) \ |