From: "Jan Beulich" <JBeulich@suse.com>
To: xen-devel <xen-devel@lists.xenproject.org>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>
Subject: [PATCH 0/7] x86emul: misc small adjustments
Date: Thu, 11 Aug 2016 05:53:23 -0600 [thread overview]
Message-ID: <57AC83530200007800105078@prv-mh.provo.novell.com> (raw)
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@suse.com>
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next reply other threads:[~2016-08-11 11:53 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-11 11:53 Jan Beulich [this message]
2016-08-11 12:03 ` [PATCH 1/7] x86emul: don't special case fetching the immediate of PUSH Jan Beulich
2016-08-11 12:58 ` Andrew Cooper
2016-08-11 13:26 ` Jan Beulich
2016-08-11 17:33 ` Andrew Cooper
2016-08-11 12:04 ` [PATCH 2/7] x86emul: don't special case fetching immediates of near and short branches Jan Beulich
2016-08-11 13:19 ` Andrew Cooper
2016-08-11 13:27 ` Jan Beulich
2016-08-11 12:04 ` [PATCH 3/7] x86emul: all push flavors are data moves Jan Beulich
2016-08-11 13:40 ` Andrew Cooper
2016-08-11 12:05 ` [PATCH 4/7] x86emul: fold SrcImmByte fetching Jan Beulich
2016-08-11 13:41 ` Andrew Cooper
2016-08-11 14:09 ` Jan Beulich
2016-08-11 15:06 ` Andrew Cooper
2016-08-11 12:06 ` [PATCH 5/7] x86emul: don't special case fetching unsigned 8-bit immediates Jan Beulich
2016-08-11 16:32 ` Andrew Cooper
2016-08-11 16:44 ` Jan Beulich
2016-08-11 17:38 ` Andrew Cooper
2016-08-12 10:50 ` Jan Beulich
2016-08-12 11:47 ` Andrew Cooper
2016-08-11 12:06 ` [PATCH 6/7] x86emul: use DstEax where possible Jan Beulich
2016-08-11 16:41 ` Andrew Cooper
2016-08-11 12:07 ` [PATCH 7/7] x86emul: introduce SrcImm16 Jan Beulich
2016-08-11 17:23 ` Andrew Cooper
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