[PATCHv7 04/14] x86/boot/efi: Fix __KERNEL_CS definition of GDT entry on 64-bit configuration

[Kirill A. Shutemov]

Define __KERNEL_CS GDT entry as long mode (.L=1, .D=0) on 64-bit
configuration.

Signed-off-by: Kirill A. Shutemov <kirill.shute...@linux.intel.com>
Cc: Matt Fleming <m...@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