From: Pavel Machek <pavel@ucw.cz>
Subject: Re: [PATCH v3 09/27] x86/acpi: Adapt assembly for PIE support
Date: Tue, 29 May 2018 14:31:14 +0200
Message-ID: <20180529123114.GB21399@amd>
References: <20180523195421.180248-1-thgarnie@google.com>
	<20180523195421.180248-10-thgarnie@google.com>
	<20180524110306.GA20225@amd>
	<CAJcbSZFJ84+VC5xDQZGHctupdqwmMBgqzLzFRqCTBpi5t-2Gvw@mail.gmail.com>
	<20180525091447.GC9666@amd>
	<CAJcbSZH17D01Stk4vRKKzjW6dxvK8x+S9sWL6vUopSP9=-x7Nw@mail.gmail.com>
Mime-Version: 1.0
Content-Type: multipart/mixed; boundary="===============3574584313153394462=="
Cc: Kate Stewart <kstewart@linuxfoundation.org>,
	Nicolas Pitre <nicolas.pitre@linaro.org>,
	the arch/x86 maintainers <x86@kernel.org>,
	Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
	Petr Mladek <pmladek@suse.com>, Len Brown <len.brown@intel.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Yonghong Song <yhs@fb.com>, Christopher Li <sparse@chrisli.org>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	Dominik Brodowski <linux@dominikbrodowski.net>,
	LKML <linux-kernel@vger.kernel.org>,
	Masahiro Yamada <yamada.masahiro@socionext.com>,
	Jan Beulich <JBeulich@suse.com>, "H . Peter Anvin" <hpa@zytor.com>,
	Kernel Hardening <kernel-hardening@lists.openwall.com>,
	Christoph Lameter <cl@linux.com>, Alok Kataria <akataria@vmware.com>,
	Linux Doc Mailing List <linux-doc@vger.kernel.org>,
	linux-arch <linux-arch@vger.kernel.org>, Jonathan Corbet <corbet@lwn.net>,
	Herbert Xu <herbert@gondor.
To: Thomas Garnier <thgarnie@google.com>
In-Reply-To: <CAJcbSZH17D01Stk4vRKKzjW6dxvK8x+S9sWL6vUopSP9=-x7Nw@mail.gmail.com>
Sender: virtualization-bounces@lists.linux-foundation.org
Errors-To: virtualization-bounces@lists.linux-foundation.org


--===============3574584313153394462==
Content-Type: multipart/signed; micalg=pgp-sha1;
	protocol="application/pgp-signature"; boundary="IrhDeMKUP4DT/M7F"
Content-Disposition: inline


--IrhDeMKUP4DT/M7F
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

On Fri 2018-05-25 10:00:04, Thomas Garnier wrote:
> On Fri, May 25, 2018 at 2:14 AM Pavel Machek <pavel@ucw.cz> wrote:
>=20
> > On Thu 2018-05-24 09:35:42, Thomas Garnier wrote:
> > > On Thu, May 24, 2018 at 4:03 AM Pavel Machek <pavel@ucw.cz> wrote:
> > >
> > > > On Wed 2018-05-23 12:54:03, Thomas Garnier wrote:
> > > > > Change the assembly code to use only relative references of symbo=
ls
> for
> > > the
> > > > > kernel to be PIE compatible.
> > > > >
> > > > > Position Independent Executable (PIE) support will allow to
> extended the
> > > > > KASLR randomization range below the -2G memory limit.
> > >
> > > > What testing did this get?
> > >
> > > Tested boot, hibernation and performance on qemu and dedicated machin=
e.
>=20
> > Well, this is suspend, not hibernation code.
>=20
> > So "sudo pm-suspend" or "echo mem > /sys/power/state" would be good
> > way to test this.
>=20
> Thanks, it worked. I added this to the testsuite I use for KASLR.

Thanks!

You can add my Acked-by:.

								Pavel
							=09
--=20
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo=
g.html

--IrhDeMKUP4DT/M7F
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: Digital signature

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1

iEYEARECAAYFAlsNSBIACgkQMOfwapXb+vJcmwCfVtj/DQE+VyxRZUU8UjiQVdHr
BO8AoIc6OVRZyFmsEwBtGucDDnQJI4fU
=APXA
-----END PGP SIGNATURE-----

--IrhDeMKUP4DT/M7F--

--===============3574584313153394462==
Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization
--===============3574584313153394462==--