Re: [PATCH 10/18] efi: Enable secure boot lockdown automaticallywhen enabled in firmware

[Matthew Garrett]

On Sun, Aug 25, 2013 at 06:22:43PM +0200, Pavel Machek wrote:
> On Thu 2013-08-22 19:01:49, Lee, Chun-Yi wrote:
> > From: Matthew Garrett <mjg@xxxxxxxxxx>
> > 
> > The firmware has a set of flags that indicate whether secure boot is enabled
> > and enforcing. Use them to indicate whether the kernel should lock itself
> > down.  We also indicate the machine is in secure boot mode by adding the
> > EFI_SECURE_BOOT bit for use with efi_enabled.
> 
> > +	status = efi_call_phys5(sys_table->runtime->get_variable,
> > +				L"SecureBoot", &var_guid, NULL, &datasize, &sb);
> 
> What is this L"..." thing?

http://en.wikipedia.org/wiki/C_syntax#Wide_character_strings
-- 
Matthew Garrett | mjg59@xxxxxxxxxxxxx
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