Yes, but as far I can see, the commit (which is not in RHEL-6) changes
*how* the operand of ljmp is decoded.
From "opcode_table" in RHEL-6's "arch/x86/kvm/emulate.c":
/* 0xE8 - 0xEF */
SrcImm | Stack, SrcImm | ImplicitOps,
SrcImmU | Src2Imm16 | No64, SrcImmByte | ImplicitOps,
^^^^^^^^^^^^^^^^^^^^^^^^^^
and the patch changes that to
SrcImmFAddr | No64
and adds new logic to fetch this source operand type.
... Which then seems to have an effect on what goes into
load_segment_descriptor() as segment selector, in the emulation of 0xea.
Of course I'm insufficiently equipped to debate this with you in earnest
:), but it seemed relevant to me.