On Mon, 2012-08-20 at 14:59 -0700, Olof Johansson wrote:
> > From a quick glance with some grepping, efi reboot and efifb will
> > also no longer work, is that intentional?
>
> That's the very point of this patch, the EFI services won't work since
> there are no runtime services in this state, just boot time setup. If
> efi_enabled is left on, the reboot will panic.
But efifb should still work without EFI runtime services, no? I see this
in setup_arch(),
#ifdef CONFIG_VT
#if defined(CONFIG_VGA_CONSOLE)
if (!efi_enabled || (efi_mem_type(0xa0000) != EFI_CONVENTIONAL_MEMORY))
conswitchp = &vga_con;
#elif defined(CONFIG_DUMMY_CONSOLE)
conswitchp = &dummy_con;
#endif
#endif
but efi_enabled check looks bogus now that efi_enabled has come to mean
"EFI services available?". If we've been passed the dimensions of the
EFI framebuffer I'm unaware of a reason we can't use it.
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