| Message ID | 1409324757-12607-1-git-send-email-ard.biesheuvel@linaro.org |
|---|---|
| State | New |
| Headers | show |
Hi Ard, On Fri, Aug 29, 2014 at 04:05:56PM +0100, Ard Biesheuvel wrote: > If UEFI Runtime Services are available, they are preferred over direct > PSCI calls or other methods to power down the system. Could you elaborate on why they should be preferred? Mark. > Enable the existing efi_reboot() code by supplying a definition of > efi_poweroff_required() that returns true. > > Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> > --- > arch/arm64/kernel/efi.c | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/arch/arm64/kernel/efi.c b/arch/arm64/kernel/efi.c > index e72f3100958f..78c85c4252bc 100644 > --- a/arch/arm64/kernel/efi.c > +++ b/arch/arm64/kernel/efi.c > @@ -475,3 +475,11 @@ err_unmap: > return -1; > } > early_initcall(arm64_enter_virtual_mode); > + > +/* > + * Override the weak definition in drivers/firmware/efi/reboot.c > + */ > +bool efi_poweroff_required(void) > +{ > + return true; > +} > -- > 1.8.3.2 > > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel >
diff --git a/arch/arm64/kernel/efi.c b/arch/arm64/kernel/efi.c index e72f3100958f..78c85c4252bc 100644 --- a/arch/arm64/kernel/efi.c +++ b/arch/arm64/kernel/efi.c @@ -475,3 +475,11 @@ err_unmap: return -1; } early_initcall(arm64_enter_virtual_mode); + +/* + * Override the weak definition in drivers/firmware/efi/reboot.c + */ +bool efi_poweroff_required(void) +{ + return true; +}
If UEFI Runtime Services are available, they are preferred over direct PSCI calls or other methods to power down the system. Enable the existing efi_reboot() code by supplying a definition of efi_poweroff_required() that returns true. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> --- arch/arm64/kernel/efi.c | 8 ++++++++ 1 file changed, 8 insertions(+)