From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: [PATCH v3 0/8] Simplify byte/word opcode pair decode Date: Thu, 26 Aug 2010 11:56:05 +0300 Message-ID: <1282812973-20093-1-git-send-email-avi@redhat.com> To: Marcelo Tosatti , kvm@vger.kernel.org Return-path: Received: from mx1.redhat.com ([209.132.183.28]:1247 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753487Ab0HZI4P (ORCPT ); Thu, 26 Aug 2010 04:56:15 -0400 Received: from int-mx02.intmail.prod.int.phx2.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id o7Q8uER8011553 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Thu, 26 Aug 2010 04:56:14 -0400 Received: from cleopatra.tlv.redhat.com (cleopatra.tlv.redhat.com [10.35.255.11]) by int-mx02.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id o7Q8uEdk005401 for ; Thu, 26 Aug 2010 04:56:14 -0400 Sender: kvm-owner@vger.kernel.org List-ID: Many x86 instructions come in pairs - byte and word variants where bit 0 of the opcode determines operand size. Use this to simplify the decode tables. Rebased, plus: Avi Kivity (8): KVM: x86 emulator: support byte/word opcode pairs KVM: x86 emulator: simplify ALU block (opcodes 00-3F) decode flags - v2: fix opcode 25 (AND r/m, imm) to accept a full immediate, not 8-bit KVM: x86 emulator: simplify string instruction decode flags KVM: x86 emulator: simplify instruction decode flags for opcodes 80-8F KVM: x86 emulator: simplify instruction decode flags for opcodes A0-AF KVM: x86 emulator: simplify instruction decode flags for opcodes C0-DF - v3: fix opcode C1 to accept an 8-bit immediate, not full KVM: x86 emulator: simplify instruction decode flags for opcodes E0-FF KVM: x86 emulator: simplify instruction decode flags for opcodes 0F 00-FF arch/x86/kvm/emulate.c | 89 ++++++++++++++++++++++-------------------------- 1 files changed, 41 insertions(+), 48 deletions(-)