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From: Yu-cheng Yu <yu-cheng.yu@intel.com>
To: x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>,
	linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org,
	linux-mm@kvack.org, linux-arch@vger.kernel.org,
	linux-api@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>,
	Andy Lutomirski <luto@amacapital.net>,
	Balbir Singh <bsingharora@gmail.com>,
	Borislav Petkov <bp@alien8.de>,
	Cyrill Gorcunov <gorcunov@gmail.com>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	Eugene Syromiatnikov <esyr@redhat.com>,
	Florian Weimer <fweimer@redhat.com>,
	"H.J. Lu" <hjl.tools@gmail.com>, Jann Horn <jannh@google.com>,
	Jonathan Corbet <corbet@lwn.net>,
	Kees Cook <keescook@chromium.org>,
	Mike Kravetz <mike.kravetz@oracle.com>,
	Nadav Amit <nadav.amit@gmail.com>,
	Oleg Nesterov <oleg@redhat.com>, Pavel Machek <pavel@ucw.cz>,
	Peter Zijlstra <peterz@infradead.org>,
	Randy Dunlap <rdunlap@infradead.org>,
	"Ravi V. Shankar" <ravi.v.shankar@intel.com>,
	Vedvyas Shanbhogue <vedvyas.shanbhogue@intel.com>,
	Dave Martin <Dave.Martin@arm.com>
Cc: Yu-cheng Yu <yu-cheng.yu@intel.com>
Subject: [PATCH v7 08/14] x86/cet/ibt: Add ENDBR to op-code-map
Date: Thu,  6 Jun 2019 13:09:20 -0700
Message-ID: <20190606200926.4029-9-yu-cheng.yu@intel.com> (raw)
In-Reply-To: <20190606200926.4029-1-yu-cheng.yu@intel.com>

Add control transfer terminating instructions:

ENDBR64/ENDBR32:
    Mark a valid 64/32-bit control transfer endpoint.

Signed-off-by: Yu-cheng Yu <yu-cheng.yu@intel.com>
---
 arch/x86/lib/x86-opcode-map.txt               | 13 +++++++++++--
 tools/objtool/arch/x86/lib/x86-opcode-map.txt | 13 +++++++++++--
 2 files changed, 22 insertions(+), 4 deletions(-)

diff --git a/arch/x86/lib/x86-opcode-map.txt b/arch/x86/lib/x86-opcode-map.txt
index c5e825d44766..fbc53481bc59 100644
--- a/arch/x86/lib/x86-opcode-map.txt
+++ b/arch/x86/lib/x86-opcode-map.txt
@@ -620,7 +620,16 @@ ea: SAVEPREVSSP (f3)
 # Skip 0xeb-0xff
 EndTable
 
-Table: 3-byte opcode 2 (0x0f 0x38)
+Table: 3-byte opcode 2 (0x0f 0x1e)
+Referrer:
+AVXcode:
+# Skip 0x00-0xf9
+fa: ENDBR64 (f3)
+fb: ENDBR32 (f3)
+#skip 0xfc-0xff
+EndTable
+
+Table: 3-byte opcode 3 (0x0f 0x38)
 Referrer: 3-byte escape 1
 AVXcode: 2
 # 0x0f 0x38 0x00-0x0f
@@ -804,7 +813,7 @@ f6: ADCX Gy,Ey (66) | ADOX Gy,Ey (F3) | MULX By,Gy,rDX,Ey (F2),(v) | WRSS Pq,Qq
 f7: BEXTR Gy,Ey,By (v) | SHLX Gy,Ey,By (66),(v) | SARX Gy,Ey,By (F3),(v) | SHRX Gy,Ey,By (F2),(v)
 EndTable
 
-Table: 3-byte opcode 3 (0x0f 0x3a)
+Table: 3-byte opcode 4 (0x0f 0x3a)
 Referrer: 3-byte escape 2
 AVXcode: 3
 # 0x0f 0x3a 0x00-0xff
diff --git a/tools/objtool/arch/x86/lib/x86-opcode-map.txt b/tools/objtool/arch/x86/lib/x86-opcode-map.txt
index c5e825d44766..fbc53481bc59 100644
--- a/tools/objtool/arch/x86/lib/x86-opcode-map.txt
+++ b/tools/objtool/arch/x86/lib/x86-opcode-map.txt
@@ -620,7 +620,16 @@ ea: SAVEPREVSSP (f3)
 # Skip 0xeb-0xff
 EndTable
 
-Table: 3-byte opcode 2 (0x0f 0x38)
+Table: 3-byte opcode 2 (0x0f 0x1e)
+Referrer:
+AVXcode:
+# Skip 0x00-0xf9
+fa: ENDBR64 (f3)
+fb: ENDBR32 (f3)
+#skip 0xfc-0xff
+EndTable
+
+Table: 3-byte opcode 3 (0x0f 0x38)
 Referrer: 3-byte escape 1
 AVXcode: 2
 # 0x0f 0x38 0x00-0x0f
@@ -804,7 +813,7 @@ f6: ADCX Gy,Ey (66) | ADOX Gy,Ey (F3) | MULX By,Gy,rDX,Ey (F2),(v) | WRSS Pq,Qq
 f7: BEXTR Gy,Ey,By (v) | SHLX Gy,Ey,By (66),(v) | SARX Gy,Ey,By (F3),(v) | SHRX Gy,Ey,By (F2),(v)
 EndTable
 
-Table: 3-byte opcode 3 (0x0f 0x3a)
+Table: 3-byte opcode 4 (0x0f 0x3a)
 Referrer: 3-byte escape 2
 AVXcode: 3
 # 0x0f 0x3a 0x00-0xff
-- 
2.17.1


  parent reply index

Thread overview: 72+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-06 20:09 [PATCH v7 00/14] Control-flow Enforcement: Branch Tracking, PTRACE Yu-cheng Yu
2019-06-06 20:09 ` [PATCH v7 01/14] x86/cet/ibt: Add Kconfig option for user-mode Indirect Branch Tracking Yu-cheng Yu
2019-06-06 20:09 ` [PATCH v7 02/14] x86/cet/ibt: User-mode indirect branch tracking support Yu-cheng Yu
2019-06-06 20:09 ` [PATCH v7 03/14] x86/cet/ibt: Add IBT legacy code bitmap setup function Yu-cheng Yu
2019-06-07  8:08   ` Peter Zijlstra
2019-06-07 16:23     ` Yu-cheng Yu
2019-06-07 16:35       ` Andy Lutomirski
2019-06-07 16:39         ` Dave Hansen
2019-06-07 16:45         ` Yu-cheng Yu
2019-06-07 17:05           ` Andy Lutomirski
2019-06-07 17:43       ` Peter Zijlstra
2019-06-07 17:59         ` Dave Hansen
2019-06-07 18:29           ` Andy Lutomirski
2019-06-07 18:58             ` Dave Hansen
2019-06-07 19:56               ` Yu-cheng Yu
2019-06-07 20:40               ` Andy Lutomirski
2019-06-07 21:05                 ` Dave Hansen
2019-06-07 19:49             ` Yu-cheng Yu
2019-06-07 20:00               ` Dave Hansen
2019-06-07 20:06                 ` Yu-cheng Yu
2019-06-07 21:09                   ` Dave Hansen
2019-06-07 22:27                     ` Andy Lutomirski
2019-06-10 16:03                       ` Yu-cheng Yu
2019-06-10 16:05                     ` Yu-cheng Yu
2019-06-10 17:28                       ` Florian Weimer
2019-06-10 17:59                       ` Dave Hansen
2019-06-07 20:43               ` Andy Lutomirski
2019-06-10 15:22                 ` Yu-cheng Yu
2019-06-10 18:02                   ` Dave Hansen
2019-06-10 19:38                     ` Yu-cheng Yu
2019-06-10 19:52                       ` Dave Hansen
2019-06-10 19:55                         ` Andy Lutomirski
2019-06-10 20:27                         ` Yu-cheng Yu
2019-06-10 20:43                           ` Dave Hansen
2019-06-10 20:58                             ` Yu-cheng Yu
2019-06-10 22:02                               ` Dave Hansen
2019-06-10 22:40                                 ` Yu-cheng Yu
2019-06-10 22:59                                   ` Dave Hansen
2019-06-10 23:20                                     ` H.J. Lu
2019-06-10 23:37                                       ` Dave Hansen
2019-06-10 23:54                                     ` Andy Lutomirski
2019-06-11  0:08                                       ` Dave Hansen
2019-06-11  0:36                                         ` Andy Lutomirski
2019-06-14 15:25                                     ` Yu-cheng Yu
2019-06-14 16:13                                       ` Dave Hansen
2019-06-14 17:13                                         ` Yu-cheng Yu
2019-06-14 20:57                                           ` Dave Hansen
2019-06-14 21:34                                             ` Yu-cheng Yu
2019-06-14 22:06                                               ` Dave Hansen
2019-06-15 15:30                                                 ` Andy Lutomirski
2019-06-11  7:24                                 ` Florian Weimer
2019-06-08 20:52           ` Pavel Machek
2019-06-10 15:47             ` Yu-cheng Yu
2019-06-11 10:33               ` Pavel Machek
2019-06-07 19:03   ` Dave Hansen
2019-06-07 19:23     ` Yu-cheng Yu
2019-06-06 20:09 ` [PATCH v7 04/14] x86/cet/ibt: Handle signals for IBT Yu-cheng Yu
2019-06-06 20:09 ` [PATCH v7 05/14] mm/mmap: Add IBT bitmap size to address space limit check Yu-cheng Yu
2019-06-06 20:09 ` [PATCH v7 06/14] x86/cet/ibt: ELF header parsing for IBT Yu-cheng Yu
2019-06-06 20:09 ` [PATCH v7 07/14] x86/cet/ibt: Add arch_prctl functions " Yu-cheng Yu
2019-06-07  8:07   ` Peter Zijlstra
2019-06-06 20:09 ` Yu-cheng Yu [this message]
2019-06-06 20:09 ` [PATCH v7 09/14] x86/vdso: Insert endbr32/endbr64 to vDSO Yu-cheng Yu
2019-06-06 20:26   ` Andy Lutomirski
2019-06-06 20:09 ` [PATCH v7 10/14] x86/vdso/32: Add ENDBR32 to __kernel_vsyscall entry point Yu-cheng Yu
2019-06-06 20:25   ` Andy Lutomirski
2019-06-06 20:09 ` [PATCH v7 11/14] x86/vsyscall/64: Add ENDBR64 to vsyscall entry points Yu-cheng Yu
2019-06-06 20:28   ` Andy Lutomirski
2019-06-06 20:09 ` [PATCH v7 12/14] x86/vsyscall/64: Fixup shadow stack and branch tracking for vsyscall Yu-cheng Yu
2019-06-06 20:27   ` Andy Lutomirski
2019-06-06 20:09 ` [PATCH v7 13/14] x86/cet: Add PTRACE interface for CET Yu-cheng Yu
2019-06-06 20:09 ` [PATCH v7 14/14] x86: Discard .note.gnu.property sections Yu-cheng Yu

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