From patchwork Thu Jun 13 15:16:17 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: 2717271 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 E0AE39F99D for ; Thu, 13 Jun 2013 15:16:42 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 7EFAD20385 for ; Thu, 13 Jun 2013 15:16:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2370220363 for ; Thu, 13 Jun 2013 15:16:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757370Ab3FMPQg (ORCPT ); Thu, 13 Jun 2013 11:16:36 -0400 Received: from mail-pb0-f48.google.com ([209.85.160.48]:50635 "EHLO mail-pb0-f48.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756552Ab3FMPQf (ORCPT ); Thu, 13 Jun 2013 11:16:35 -0400 Received: by mail-pb0-f48.google.com with SMTP id ma3so5012349pbc.35 for ; Thu, 13 Jun 2013 08:16:34 -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; bh=5aYYYP/TF52IOMwBPi/nrZWOavkHVh2JaY2H8+dXs/I=; b=w1AGQppMYd82Gxja60gvnUF67/7Fh47kDp5V1fMSxrE6iOn4uAGqVmGXmmp0/cu80A iCnDYwAF0UvvuVuLzRz6Cv39viIDjauVfLGKbgSquZnkzS3DHO5CCJOkvaBUHc068qu1 ILO2KqH4WflDwnUxU4EppQGx+hbZWHFuf9FwMOOY+85J7qJT7jTgImmXP6GlTbst5Nrt RWMye/oHs5O2JTEHTZcx6fzmT4fmE7/Were17KE0m6dcBPV1yvOvAieq3BZ/MRVdvQoz v1iE8t9f3BS5xptJeD0yCICGlId6umVyZM2LBCz2dx+A4/OzUD9SM4oJ9PjWCE4dNvIT 0YOg== X-Received: by 10.68.245.170 with SMTP id xp10mr1359227pbc.41.1371136594421; Thu, 13 Jun 2013 08:16:34 -0700 (PDT) Received: from Blade1-02.Blade1-02 ([162.105.146.101]) by mx.google.com with ESMTPSA id vb8sm23762437pbc.11.2013.06.13.08.16.30 for (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Thu, 13 Jun 2013 08:16:33 -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 1/2] kvm-unit-tests: Add a func to run instruction in emulator Date: Thu, 13 Jun 2013 23:16:17 +0800 Message-Id: <1371136578-4047-1-git-send-email-yzt356@gmail.com> X-Mailer: git-send-email 1.7.9.5 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Spam-Status: No, score=-7.2 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 a function trap_emulator to run an instruction in emulator. Set inregs first (%rax is invalid because it is used as return address), put instruction codec in alt_insn and call func with alt_insn_length. Get results in outregs. Signed-off-by: Arthur Chunqi Li --- x86/emulator.c | 132 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 132 insertions(+) diff --git a/x86/emulator.c b/x86/emulator.c index 96576e5..4981bfb 100644 --- a/x86/emulator.c +++ b/x86/emulator.c @@ -11,6 +11,16 @@ int fails, tests; static int exceptions; +struct regs { + u64 rax, rbx, rcx, rdx; + u64 rsi, rdi, rsp, rbp; + u64 r8, r9, r10, r11; + u64 r12, r13, r14, r15; + u64 rip, rflags; +}; +static struct regs inregs, outregs; +extern struct regs save; + void report(const char *name, int result) { ++tests; @@ -685,6 +695,128 @@ static void test_shld_shrd(u32 *mem) report("shrd (cl)", *mem == ((0x12345678 >> 3) | (5u << 29))); } +extern u8 insn_start[], insn_end[]; +extern u8 insn_emulate_start[], insn_emulate_end[]; + +static void mk_insn_page(uint8_t *insn_page, uint8_t *alt_insn_page, + uint8_t *alt_insn, int alt_insn_length) +{ + int i, emul_offset; + for (i=1; i