Date: Mon, 11 Apr 2016 09:01:38 -0400 From: Shawn Webb <shawn.webb@hardenedbsd.org> To: Anish Gupta <anish@FreeBSD.org> Cc: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r297806 - head/sys/amd64/vmm/amd Message-ID: <20160411130138.GA56696@mutt-hardenedbsd> In-Reply-To: <201604110509.u3B59iFs000620@repo.freebsd.org> References: <201604110509.u3B59iFs000620@repo.freebsd.org>
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--17pEHd4RhPHOinZp Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Apr 11, 2016 at 05:09:44AM +0000, Anish Gupta wrote: > Author: anish > Date: Mon Apr 11 05:09:43 2016 > New Revision: 297806 > URL: https://svnweb.freebsd.org/changeset/base/297806 >=20 > Log: > Allow guest writes to AMD microcode update[0xc0010020] MSR without upda= ting actual hardware MSR. This allows guest microcode update to go through = which otherwise failing because wrmsr() was returning EINVAL. Pardon my ignorance, but does that mean that prior to this commit, a bhyve guest on AMD could modify hardware? Thanks, --=20 Shawn Webb HardenedBSD GPG Key ID: 0x6A84658F52456EEE GPG Key Fingerprint: 2ABA B6BD EF6A F486 BE89 3D9E 6A84 658F 5245 6EEE --17pEHd4RhPHOinZp Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBCAAGBQJXC6AwAAoJEGqEZY9SRW7uZsEQALo7TkGvM2miimCzIpx8cxUp tQTGPN9Xm0VBM8cdQ7OLEkpNbQSKuG8sqXpN53l9gufLkVeQxzexCx5h8i2Df7/E W9R+ANKbKcYmLXavTHRfm3BCxuwb/00rvtmXqtfQAoL/Ph1f4YI2LQSLyXNP6IxY aKm510XmvkAUo3kA8rzJ/SZHU58/C7hCbk3Ky3Vn0V0sZeQWtkrJ9bReWMnzbzOI rooVe+LmIqxrUwYjQaavJqKKY88RkFKQGf4zuRKE8HTqigTeolimRjkR5mZXHNsb dS3SsoG5bpeQWm5rPEBpBDfYQnZK+WUOeDWL8EB1Za/PIhryspZC4MY9FsY/BTY0 iw+cC0TNqZzo4qOU7WaU9DJ0meEfbhizUfX6wYXDnifFxF/xlkxkAFuhoSgsTThU VoqMhL+qeoapaXTlV+rwDlt/9LP6fb3KaB6oYYWip799aZNmYcYr/KVEl9fznUWm KT/RWyqhlgp/Mif6F7v1ND6MB9XPiwax1iyAbTFTUCUd5I7quVSzYE6zQBR7s2rj mTjFJ4rPgKM/8My4pSY6LDAMEmMfRiYiV/1Bx/gXnHG0k5VayY6kk1ZNYix7J+Hr Moojs/miMOZUy/jsewfE+yZqFGEsnMNCR6D4qEzaoCQF4scpnAai2XzjDmQWZjWj sItV5l9upa5nFGGh1fpS =S61J -----END PGP SIGNATURE----- --17pEHd4RhPHOinZp--
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