From patchwork Fri Aug 9 16:00:35 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Adalbert_Laz=C4=83r?= X-Patchwork-Id: 11087093 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id B6AFB6C5 for ; Fri, 9 Aug 2019 16:16:08 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A3CC41FF73 for ; Fri, 9 Aug 2019 16:16:08 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 87DDE2015F; Fri, 9 Aug 2019 16:16:08 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 44C852022B for ; Fri, 9 Aug 2019 16:16:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2437143AbfHIQQH (ORCPT ); Fri, 9 Aug 2019 12:16:07 -0400 Received: from mx01.bbu.dsd.mx.bitdefender.com ([91.199.104.161]:53040 "EHLO mx01.bbu.dsd.mx.bitdefender.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2437089AbfHIQPD (ORCPT ); Fri, 9 Aug 2019 12:15:03 -0400 Received: from smtp.bitdefender.com (smtp02.buh.bitdefender.net [10.17.80.76]) by mx01.bbu.dsd.mx.bitdefender.com (Postfix) with ESMTPS id 3B133305D362; Fri, 9 Aug 2019 19:01:40 +0300 (EEST) Received: from localhost.localdomain (unknown [89.136.169.210]) by smtp.bitdefender.com (Postfix) with ESMTPSA id D678C305B7A0; Fri, 9 Aug 2019 19:01:39 +0300 (EEST) From: =?utf-8?q?Adalbert_Laz=C4=83r?= To: kvm@vger.kernel.org Cc: linux-mm@kvack.org, virtualization@lists.linux-foundation.org, Paolo Bonzini , =?utf-8?b?UmFkaW0gS3LEjW3DocWZ?= , Konrad Rzeszutek Wilk , Tamas K Lengyel , Mathieu Tarral , =?utf-8?q?Samuel_Laur=C3=A9?= =?utf-8?q?n?= , Patrick Colp , Jan Kiszka , Stefan Hajnoczi , Weijiang Yang , Zhang@vger.kernel.org, Yu C , =?utf-8?q?Mihai_Don=C8=9Bu?= , =?utf-8?q?Adalbert_L?= =?utf-8?q?az=C4=83r?= Subject: [RFC PATCH v6 80/92] kvm: x86: emulate movss xmm, m32 Date: Fri, 9 Aug 2019 19:00:35 +0300 Message-Id: <20190809160047.8319-81-alazar@bitdefender.com> In-Reply-To: <20190809160047.8319-1-alazar@bitdefender.com> References: <20190809160047.8319-1-alazar@bitdefender.com> MIME-Version: 1.0 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Mihai Donțu This is needed in order to be able to support guest code that uses movss to write into pages that are marked for write tracking. Signed-off-by: Mihai Donțu Signed-off-by: Adalbert Lazăr --- arch/x86/kvm/emulate.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index 9d38f892beea..b8a412b8b087 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -1184,9 +1184,13 @@ static u8 simd_prefix_to_bytes(const struct x86_emulate_ctxt *ctxt, switch (ctxt->b) { case 0x11: + /* movss xmm, m32 */ /* movsd xmm, m64 */ /* movups xmm, m128 */ - if (simd_prefix == 0xf2) { + if (simd_prefix == 0xf3) { + bytes = 4; + break; + } else if (simd_prefix == 0xf2) { bytes = 8; break; } @@ -4550,7 +4554,7 @@ static const struct gprefix pfx_0f_2b = { }; static const struct gprefix pfx_0f_10_0f_11 = { - I(Unaligned, em_mov), I(Unaligned, em_mov), I(Unaligned, em_mov), N, + I(Unaligned, em_mov), I(Unaligned, em_mov), I(Unaligned, em_mov), I(Unaligned, em_mov), }; static const struct gprefix pfx_0f_28_0f_29 = {