From owner-freebsd-virtualization@freebsd.org Mon Apr 10 22:32:54 2017 Return-Path: Delivered-To: freebsd-virtualization@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id BFE1BD37319 for ; Mon, 10 Apr 2017 22:32:54 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id AEE9685B for ; Mon, 10 Apr 2017 22:32:54 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from bugs.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id v3AMWr3X000653 for ; Mon, 10 Apr 2017 22:32:54 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-virtualization@FreeBSD.org Subject: [Bug 203994] bhyve kernel module may need to relax some checks when running nested under KVM Date: Mon, 10 Apr 2017 22:32:53 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: CURRENT X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: grehan@FreeBSD.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-virtualization@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-virtualization@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Discussion of various virtualization techniques FreeBSD supports." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 10 Apr 2017 22:32:54 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D203994 --- Comment #14 from Peter Grehan --- Thanks to those who posted MSR output. There are 3 issues: - the INST/OUTS capability isn't advertised on some KVM versions. I need to run a simple test to see if this matters or not in this environment. Hopefu= lly it won't, and this test can be relaxed. - bhyve tests for all variants of INVVPID, but only uses the 2 that are advertised by KVM. This test will be dropped back to just those 2. - bhyve does use both forms of INVEPT, where some versions of KVM only advertise the coarse version. Since the finer-grained version is just an optimization, bhyve will be modified to only use the finer-grained version = if it is available. I'll try and get a patch together shortly so these mods can be tested. --=20 You are receiving this mail because: You are the assignee for the bug.=