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    Subject[PATCHv7 04/14] x86/boot/efi: Fix __KERNEL_CS definition of GDT entry on 64-bit configuration
    Date
    Define __KERNEL_CS GDT entry as long mode (.L=1, .D=0) on 64-bit
    configuration.

    Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
    Cc: Matt Fleming <matt@codeblueprint.co.uk>
    ---
    arch/x86/boot/compressed/eboot.c | 9 +++++++--
    1 file changed, 7 insertions(+), 2 deletions(-)

    diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
    index 1d5093d1f319..b75c20f779ea 100644
    --- a/arch/x86/boot/compressed/eboot.c
    +++ b/arch/x86/boot/compressed/eboot.c
    @@ -1059,8 +1059,13 @@ struct boot_params *efi_main(struct efi_config *c,
    desc->p = 1;
    desc->limit = 0xf;
    desc->avl = 0;
    - desc->l = 0;
    - desc->d = SEG_OP_SIZE_32BIT;
    + if (IS_ENABLED(CONFIG_X86_64)) {
    + desc->l = 1;
    + desc->d = 0;
    + } else {
    + desc->l = 0;
    + desc->d = SEG_OP_SIZE_32BIT;
    + }
    desc->g = SEG_GRANULARITY_4KB;
    desc->base2 = 0x00;
    desc++;
    --
    2.11.0
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