x86/emul: Simplfy L{ES,DS,SS,FS,GS} handling
%ss, %fs and %gs can be calculated by directly masking the opcode. %es and
%ds cant, but the calculation isn't hard.
Use seg rather than dst.val for storing the calculated segment, which is
appropriately typed. Drop the sel local variable entirely and use dst.val
instead. The mode_64bit() check can be repositioned and simplified to drop
the ext check. Replace opencoding of X86EMUL_OKAY.
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
projects / xen.git / commit