From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 983DAC433DB for ; Fri, 29 Jan 2021 23:39:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 55B4464DEB for ; Fri, 29 Jan 2021 23:39:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231244AbhA2Xj3 (ORCPT ); Fri, 29 Jan 2021 18:39:29 -0500 Received: from mail.kernel.org ([198.145.29.99]:37394 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229828AbhA2Xj2 (ORCPT ); Fri, 29 Jan 2021 18:39:28 -0500 Received: by mail.kernel.org (Postfix) with ESMTPS id 9EC4C64DEC for ; Fri, 29 Jan 2021 23:38:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1611963527; bh=PrK3Wlc0DA0ICdjtkh2aP+SukoPT9Muy9k0ZUCnuowI=; h=From:To:Subject:Date:In-Reply-To:References:From; b=EXtAtRQLVASaFhLJQNS1vQd2wgPxGf8gReaDecuK0ulmu0ZqE1gkseSFn/riEOvyU 4gJWs4/Z4StT/tBx7a/+I1vRp++9f63Jsip9qJA+gm5jYbt0TXkvMnS3wl8aUU86FB Y3/9GR10Z2GYz2hTZDddW92CvFIdcVjsjK8207126Ufs/cSeE+Y8/SuxpapX0lJYhh YNq0dgiVSt7juBQ69cazGurW3rPXdezEiSvGcrjIEPg8OGDVivzWxlyz5pMo69K8rP pruZ+crqghfwyrnCM0+InZqlmAAXSBRUKCx6VPmSIOTn/23dDhsxYYsMs/lfqz0dw7 jzpMM3aztx/Zw== From: bugzilla-daemon@bugzilla.kernel.org To: kvm@vger.kernel.org Subject: [Bug 211467] Regression affecting 32->64 bit SYSENTER on AMD Date: Fri, 29 Jan 2021 23:38:47 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: AssignedTo virtualization_kvm@kernel-bugs.osdl.org X-Bugzilla-Product: Virtualization X-Bugzilla-Component: kvm X-Bugzilla-Version: unspecified X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: seanjc@google.com X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: virtualization_kvm@kernel-bugs.osdl.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugzilla.kernel.org/ Auto-Submitted: auto-generated MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org https://bugzilla.kernel.org/show_bug.cgi?id=3D211467 Sean Christopherson (seanjc@google.com) changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |seanjc@google.com --- Comment #2 from Sean Christopherson (seanjc@google.com) --- LOL, this is awesome. Presumably you're also exposing an Intel CPU model to the guest, otherwise KVM would inject a #UD on SYSENTER instead of emulatin= g. Anyways, hilarity aside, your patch looks correct as Intel CPUs uncondition= ally transition to 64-bit mode on SYSENTER from compatibility mode. Want to sen= d a formal patch? If you're not set up to send a patch, I'd be happy to write a changelog if you want to provide a Signed-off-by. --=20 You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.=