x86/asm: Add DB flag to 32-bit percpu GDT entry

The D/B size flag for the 32-bit percpu GDT entry was not set.

The Intel manual (vol 3, section 3.4.5) only specifies the meaning of
this flag for three cases:

 1) code segments used for %cs -- doesn't apply here

 2) stack segments used for %ss -- doesn't apply

 3) expand-down data segments -- but we don't have the expand-down flag
    set, so it also doesn't apply here

The flag likely doesn't do anything here, although the manual does also
say: "This flag should always be set to 1 for 32-bit code and data
segments [...]" so we should probably do it anyway.

Signed-off-by: Vegard Nossum <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Acked-by: Linus Torvalds <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

0 files changed, 0 insertions, 0 deletions