* Matt Fleming <matt@xxxxxxxxxxxxxxxxxxx> wrote: > From: Matt Fleming <matt.fleming@xxxxxxxxx> > > Folks, the below fix from Paolo addresses an issue causing 32-bit > non-PAE kernels to triple fault on EFI boot. The issue is that the > physical address of the GDT that gets used in efi_call_phys_prolog() > won't be covered by the identitty mapping in initial_page_table. > > The following changes since commit 8a53554e12e98d1759205afd7b8e9e2ea0936f48: > > x86/efi: Fix multiple GOP device support (2015-10-14 16:02:43 +0200) > > are available in the git repository at: > > git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/efi.git tags/efi-urgent > > for you to fetch changes up to f5f3497cad8c8416a74b9aaceb127908755d020a: > > x86/setup: Extend low identity map to cover whole kernel range (2015-10-16 10:52:29 +0100) > > ---------------------------------------------------------------- > * Ensure that the identity mapping in initial_page_table is updated > to cover the entire kernel range. This fixes a triple fault on > non-PAE kernels when booting on 32-bit EFI due to accessing an > unmapped GDT in efi_call_phys_prolog() - Paolo Bonzini > > ---------------------------------------------------------------- > Paolo Bonzini (1): > x86/setup: Extend low identity map to cover whole kernel range > > arch/x86/kernel/setup.c | 8 ++++++++ > 1 file changed, 8 insertions(+) Pulled, thanks Matt! Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-efi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
