From: Thomas Garnier <thgarnie@google.com>
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.>
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
Subject: [PATCH v1 07/27] x86: pm-trace - Adapt assembly for PIE support
Date: Wed, 11 Oct 2017 13:30:07 -0700 [thread overview]
Message-ID: <20171011203027.11248-8-thgarnie@google.com> (raw)
In-Reply-To: <20171011203027.11248-1-thgarnie@google.com>
Change assembly to use the new _ASM_GET_PTR macro instead of _ASM_MOV for
the assembly to be PIE compatible.
Position Independent Executable (PIE) support will allow to extended the
KASLR randomization range below the -2G memory limit.
Signed-off-by: Thomas Garnier <thgarnie@google.com>
---
arch/x86/include/asm/pm-trace.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/include/asm/pm-trace.h b/arch/x86/include/asm/pm-trace.h
index 7b7ac42c3661..a3801261f0dd 100644
--- a/arch/x86/include/asm/pm-trace.h
+++ b/arch/x86/include/asm/pm-trace.h
@@ -7,7 +7,7 @@
do { \
if (pm_trace_enabled) { \
const void *tracedata; \
- asm volatile(_ASM_MOV " $1f,%0\n" \
+ asm volatile(_ASM_GET_PTR(1f, %0) "\n" \
".section .tracedata,\"a\"\n" \
"1:\t.word %c1\n\t" \
_ASM_PTR " %c2\n" \
--
2.15.0.rc0.271.g36b669edcc-goog
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next prev parent reply other threads:[~2017-10-11 20:30 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-11 20:30 [PATCH v1 00/27] x86: PIE support and option to extend KASLR randomization Thomas Garnier
2017-10-11 20:30 ` [PATCH v1 01/27] x86/crypto: Adapt assembly for PIE support Thomas Garnier
2017-10-20 8:24 ` Ingo Molnar
2017-10-20 8:28 ` Ard Biesheuvel
2017-10-20 14:48 ` Thomas Garnier
2017-10-11 20:30 ` [PATCH v1 02/27] x86: Use symbol name on bug table " Thomas Garnier
2017-10-11 20:30 ` [PATCH v1 03/27] x86: Use symbol name in jump " Thomas Garnier
2017-10-11 20:30 ` [PATCH v1 04/27] x86: Add macro to get symbol address " Thomas Garnier
2017-10-11 20:30 ` [PATCH v1 05/27] x86: relocate_kernel - Adapt assembly " Thomas Garnier
2017-10-11 20:30 ` [PATCH v1 06/27] x86/entry/64: " Thomas Garnier
2017-10-20 8:26 ` Ingo Molnar
2017-10-20 14:47 ` Thomas Garnier
2017-10-20 15:20 ` Ingo Molnar
2017-10-20 16:27 ` Andy Lutomirski
2017-10-20 17:52 ` Andy Lutomirski
2017-10-11 20:30 ` Thomas Garnier [this message]
2017-10-11 20:30 ` [PATCH v1 08/27] x86/CPU: " Thomas Garnier
2017-10-11 20:30 ` [PATCH v1 09/27] x86/acpi: " Thomas Garnier
2017-10-11 20:30 ` [PATCH v1 10/27] x86/boot/64: " Thomas Garnier
2017-10-11 20:30 ` [PATCH v1 11/27] x86/power/64: " Thomas Garnier
2017-10-11 20:30 ` [PATCH v1 12/27] x86/paravirt: " Thomas Garnier
2017-10-11 20:30 ` [PATCH v1 13/27] x86/boot/64: Use _text in a global " Thomas Garnier
2017-10-11 20:30 ` [PATCH v1 14/27] x86/percpu: Adapt percpu " Thomas Garnier
2017-10-11 20:30 ` [PATCH v1 15/27] compiler: Option to default to hidden symbols Thomas Garnier
2017-10-12 20:02 ` Luis R. Rodriguez
2017-10-18 23:15 ` Thomas Garnier
2017-10-19 19:38 ` Luis R. Rodriguez
2017-10-11 20:30 ` [PATCH v1 16/27] x86/relocs: Handle PIE relocations Thomas Garnier
2017-10-11 20:30 ` [PATCH v1 17/27] xen: Adapt assembly for PIE support Thomas Garnier
2017-10-11 20:30 ` [PATCH v1 18/27] kvm: " Thomas Garnier
2017-10-11 20:30 ` [PATCH v1 19/27] x86: Support global stack cookie Thomas Garnier
2017-10-11 20:30 ` [PATCH v1 20/27] x86/ftrace: Adapt function tracing for PIE support Thomas Garnier
2017-10-11 20:30 ` [PATCH v1 21/27] x86/mm/dump_pagetables: Fix address markers index on x86_64 Thomas Garnier
2017-10-11 20:30 ` [PATCH v1 22/27] x86/modules: Add option to start module section after kernel Thomas Garnier
2017-10-11 20:30 ` [PATCH v1 23/27] x86/modules: Adapt module loading for PIE support Thomas Garnier
2017-10-11 20:30 ` [PATCH v1 24/27] x86/mm: Make the x86 GOT read-only Thomas Garnier
2017-10-11 20:30 ` [PATCH v1 25/27] x86/pie: Add option to build the kernel as PIE Thomas Garnier
2017-10-11 20:30 ` [PATCH v1 26/27] x86/relocs: Add option to generate 64-bit relocations Thomas Garnier
2017-10-11 20:30 ` [PATCH v1 27/27] x86/kaslr: Add option to extend KASLR range from 1GB to 3GB Thomas Garnier
2017-10-11 21:34 ` [PATCH v1 00/27] x86: PIE support and option to extend KASLR randomization Tom Lendacky
2017-10-12 15:34 ` Thomas Garnier
2017-10-12 15:51 ` Markus Trippelsdorf
2017-10-12 16:28 ` Tom Lendacky
2017-10-18 23:17 ` Thomas Garnier
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