From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:44988) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fTfzW-0008Mz-FD for qemu-devel@nongnu.org; Fri, 15 Jun 2018 00:05:39 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fTfzS-0007Yv-8P for qemu-devel@nongnu.org; Fri, 15 Jun 2018 00:05:38 -0400 Date: Fri, 15 Jun 2018 13:40:33 +1000 From: David Gibson Message-ID: <20180615034033.GP4129@umbus.fritz.box> References: <152882087494.112322.15549780953419438229.stgit@bahia.lab.toulouse-stg.fr.ibm.com> <152882305541.114463.3137854902721347235.stgit@bahia.lan> <20180613004506.GM30690@umbus.fritz.box> <20180613101915.4cc9485b@bahia.lab.toulouse-stg.fr.ibm.com> <20180615000020.2a3372a5@bahia.lan> <20180615014501.GI4129@umbus.fritz.box> <9a1e00ab-5b80-0402-4335-cc340ba6b582@linaro.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="uQ3BaAlxDi9XKvis" Content-Disposition: inline In-Reply-To: <9a1e00ab-5b80-0402-4335-cc340ba6b582@linaro.org> Subject: Re: [Qemu-devel] [PATCH 3/3] target/ppc: filter out non-zero PCR values when using TCG List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Richard Henderson Cc: Greg Kurz , qemu-ppc@nongnu.org, qemu-devel@nongnu.org --uQ3BaAlxDi9XKvis Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Jun 14, 2018 at 05:38:16PM -1000, Richard Henderson wrote: > On 06/14/2018 03:45 PM, David Gibson wrote: > >>> To wit, the instructions are recognized and transactions always fail.= Which is > >>> not a bad way to test the required fallback paths that rarely fail on= hardware. > >>> ;-) > >> > >> If TM instructions don't cause an exception, I guess its reasonable to= say > >> they're supported :) > >=20 > > That argument has come up before, and I disagree. I don't think it's > > reasonable to advertise TM support as available if the instructions > > always fail. >=20 > Is it possible to turn it on from the command-line? Not at present.. attempting to is what gives the error message discussed above. > Like one can with -cpu foo,+opt on x86 or -cpu foo,opt=3Don on s390? >=20 >=20 > r~ >=20 --=20 David Gibson | I'll have my music baroque, and my code david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_ | _way_ _around_! http://www.ozlabs.org/~dgibson --uQ3BaAlxDi9XKvis Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEEdfRlhq5hpmzETofcbDjKyiDZs5IFAlsjNSwACgkQbDjKyiDZ s5J7cw//bu5If5BfdPqFamSdFtctHCZoo/wty8IEm5ROdV/boKHzItsor9x/JNyx fWQ9MuDTnIPfVKP8fj3K/kgaNY7wRGU0/AwkKsBCsHn0+PN41Kl1tt666Axszsmc LuTMM7QuCBxa+L7xIpUMQBEbQSw6paIlfaWnIkyq+2AVV0hi+1rtf0edpXqPYkvQ DQm5FSkTNlD5XAuI7CVXu1MgmunnZyFFI3vjRM7CDHakJTwGa05yjsyCNxo85Hny 294iA1jJ3iwrpgdB/7iYeX5Km6DMoxPSgFTleKqofyjoeGN1MGi5ItaBKR3hnMay Y0SOfFT213laT3+8qkZsBZUURe3JEPM3qDECIsbXnZloZlrpwGuFJO5N2pDWbcBq nTEydqUDuAIFx+sgxYqQ/xgUBqa9Q8/J9WNXJcE0p6uIs+6qFZG+7JpeMwP6DB4G CxOGjvrGttEcyNrpRygkYAS0p3sDiyMuk4rMgS01Yt1qRm0l+wZYB7Bbzjywag6t 5aJGyXWpUV59tlRCPGC3vtP4sxPLP2P62pBNJ0TiWsvI5cxEnyYD841wMFU7dH+o Ur+zY4A9PF6u66WvHdFFkMZMJ4/Nu9RSVOyHo2zw+NIM8080qH2TGcBoc4VlB8cE jrm8uYBgxixx+LXUQ/ePtxc2sjQHtwNbIwwY+MLrbsBaOuxrhcE= =JbUN -----END PGP SIGNATURE----- --uQ3BaAlxDi9XKvis--