From patchwork Tue Jun 25 08:51:31 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arthur Chunqi Li X-Patchwork-Id: 2775311 Return-Path: X-Original-To: patchwork-kvm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 7F6429F3A0 for ; Tue, 25 Jun 2013 08:52:05 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 4C8732019A for ; Tue, 25 Jun 2013 08:52:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 17179201B0 for ; Tue, 25 Jun 2013 08:52:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752800Ab3FYIv5 (ORCPT ); Tue, 25 Jun 2013 04:51:57 -0400 Received: from mail-pd0-f182.google.com ([209.85.192.182]:47398 "EHLO mail-pd0-f182.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752753Ab3FYIvy (ORCPT ); Tue, 25 Jun 2013 04:51:54 -0400 Received: by mail-pd0-f182.google.com with SMTP id r10so842180pdi.41 for ; Tue, 25 Jun 2013 01:51:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id:x-mailer:in-reply-to:references; bh=9dQLTDBd/e4Wxcni6q72ZeKRHK47N3IiPQtbfc2yuLc=; b=fPZGeqGnnp2ZZc7EBNO2GIfFeAkVLP7bcAigq5sEtrB+Oib8JB+w3etENg6llTlh0i sWhvL17g+zciCwcAso3Iw7gnzws1Ae1TfpwgH01R6N3egCcZLXxilEeVa89Qc6IHUl+X p828ELE91lmnFIegHXIq/spswi4kIYpfq4ipNhz4McFHsw8hLm36In8DciBdbp00yy4i ILsYI774XXOzifnqWFytVl1gHbC4CtJD67J5pdQ8NiFn5VTTIxAhjFeqfGOoGX7phdvs JgCGWBmjQ7fzl4+CPGlyt62P2RXuDCA5kSPGz5JSz2eS9U0JfkHOtWwiwHpq5VeMp3yp lr+Q== X-Received: by 10.68.104.196 with SMTP id gg4mr27596040pbb.25.1372150314028; Tue, 25 Jun 2013 01:51:54 -0700 (PDT) Received: from Blade1-02.Blade1-02 ([162.105.146.101]) by mx.google.com with ESMTPSA id pb5sm22184793pbc.29.2013.06.25.01.51.50 for (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Tue, 25 Jun 2013 01:51:53 -0700 (PDT) From: Arthur Chunqi Li To: kvm@vger.kernel.org Cc: gleb@redhat.com, pbonzini@redhat.com, jan.kiszka@web.de, Arthur Chunqi Li Subject: [PATCH 3/3] emulator: Add spl/bpl/sil/dil access via modrm Date: Tue, 25 Jun 2013 16:51:31 +0800 Message-Id: <1372150291-31096-3-git-send-email-yzt356@gmail.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1372150291-31096-1-git-send-email-yzt356@gmail.com> References: <1372150291-31096-1-git-send-email-yzt356@gmail.com> Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Spam-Status: No, score=-8.1 required=5.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, FREEMAIL_FROM, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, T_DKIM_INVALID, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add test case of accessing spl/bpl/sil/dil via modrm in emulator. Signed-off-by: Arthur Chunqi Li --- x86/emulator.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/x86/emulator.c b/x86/emulator.c index bd02d5c..bea9513 100755 --- a/x86/emulator.c +++ b/x86/emulator.c @@ -840,6 +840,31 @@ static void test_nopl(uint64_t *mem, void *alt_insn_page) report("nopl", 1); } +static void test_modrm(uint64_t *mem, void *alt_insn_page) +{ + + MK_INSN(modrm_spl,"mov %al, %spl\n\t"); + MK_INSN(modrm_bpl,"mov %cl, %bpl\n\t"); + MK_INSN(modrm_sil,"mov %dl, %sil\n\t"); + MK_INSN(modrm_dil,"mov %bl, %dil\n\t"); + + inregs = (struct regs){ .rax = 0x1234 }; + trap_emulator(mem, alt_insn_page, &insn_modrm_spl); + report("access spl via modr/m", outregs.rax == 0x1234); + + inregs = (struct regs){ .rcx = 0x1234 }; + trap_emulator(mem, alt_insn_page, &insn_modrm_bpl); + report("access bpl via modr/m", outregs.rcx == 0x1234); + + inregs = (struct regs){ .rdx = 0x1234 }; + trap_emulator(mem, alt_insn_page, &insn_modrm_sil); + report("access sil via modr/m", outregs.rdx == 0x1234); + + inregs = (struct regs){ .rbx = 0x1234 }; + trap_emulator(mem, alt_insn_page, &insn_modrm_dil); + report("access dil via modr/m", outregs.rbx == 0x1234); +} + static void test_crosspage_mmio(volatile uint8_t *mem) { volatile uint16_t w, *pw; @@ -1037,6 +1062,7 @@ int main() test_mmx_movq_mf(mem, alt_insn_page); test_movabs(mem, alt_insn_page); test_nopl(mem, alt_insn_page); + test_modrm(mem, alt_insn_page); test_crosspage_mmio(mem);