Re: [PATCHv7 05/14] x86/boot/efi: Define __KERNEL32_CS GDT on 64-bit configurations

From: Matt Fleming
Date: Thu Jun 08 2017 - 10:18:59 EST


On Tue, 06 Jun, at 02:31:24PM, Kirill A. Shutemov wrote:
> We would need to switch temporarily to compatibility mode during booting
> with 5-level paging enabled. It would require 32-bit code segment
> descriptor.
>
> Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
> Cc: Matt Fleming <matt@xxxxxxxxxxxxxxxxxxx>
> ---
> arch/x86/boot/compressed/eboot.c | 25 +++++++++++++++++++++++--
> 1 file changed, 23 insertions(+), 2 deletions(-)

Reviewed-by: Matt Fleming <matt@xxxxxxxxxxxxxxxxxxx>