From: Thomas Garnier <thgarnie@google.com>
Subject: [PATCH v1 10/27] x86/boot/64: Adapt assembly for PIE
	support
Date: Wed, 11 Oct 2017 13:30:10 -0700
Message-ID: <20171011203027.11248-11-thgarnie@google.com>
References: <20171011203027.11248-1-thgarnie@google.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Cc: linux-arch@vger.kernel.org, kvm@vger.kernel.org, linux-pm@vger.kernel.org,
 x86@kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
 virtualization@lists.linux-foundation.org, linux-sparse@vger.kernel.org,
 linux-crypto@vger.kernel.org, kernel-hardening@lists.openwall.com,
 xen-devel@lists.xenproject.org
To: Herbert Xu <herbert@gondor.apana.org.au>,
 "David S . Miller" <davem@davemloft.net>,
 Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>,
 "H . Peter Anvin" <hpa@zytor.com>, Peter Zijlstra <peterz@infradead.org>,
 Josh Poimboeuf <jpoimboe@redhat.com>, Arnd Bergmann <arnd@arndb.de>,
 Thomas Garnier <thgarnie@google.com>, Kees Cook <keescook@chromium.org>,
 Andrey Ryabinin <aryabinin@virtuozzo.com>,
 Matthias Kaehlcke <mka@chromium.org>,
 Tom Lendacky <thomas.lendacky@amd.com>, Andy Lutomirski <luto@kernel.org>,
 "Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>,
 Borislav Petkov <bp@suse.de>, "Rafael J . Wysocki" <rjw@rjwysocki.net>,
 Len Brown <len.brown@intel.com>, Pavel Machek <pavel@ucw.cz>,
 Juergen Gross <jgross@suse.com>, Chris Wright <chrisw@sous-sol.org>,
 Alok Kataria <akataria@vmware.com>, Rusty Russell <rusty@rustcorp.com.au>,
 Tejun Heo <tj@kernel.
In-Reply-To: <20171011203027.11248-1-thgarnie@google.com>
Errors-To: xen-devel-bounces@lists.xen.org
Sender: "Xen-devel" <xen-devel-bounces@lists.xen.org>
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