[Xen-devel] [PATCH 0/7] x86emul: misc small adjustments

["Jan Beulich" <JBeulich@xxxxxxxx>]

This is mainly to reduce the amount of fetching of insn bytes past
the initial phase of decoding, as a little bit of preparation for the
intended splitting of decoding and execution stages. Having fully
read all insn bytes by that point would be specifically required if
the first stage alone should become usable to simply size an
instruction

There are, however, unrelated other improvements, with the
fundamental common attribute being the attempt to avoid
open coding in the handling of specific instructions what can be
done by generic code.

1: don't special case fetching the immediate of PUSH
2: don't special case fetching immediates of near and short branches
3: x86emul: all push flavors are data moves
4: fold SrcImmByte fetching
5: don't special case fetching unsigned 8-bit immediates
6: use DstEax where possible
7: introduce SrcImm16

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>


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