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>,
Cyrill Gorcunov <gorcunov@gmail.com>,
Dave Hansen <dave.hansen@linux.intel.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@chromiun.org>,
Mike Kravetz <mike.kravetz@oracle.com>,
Nadav Amit <nadav.amit@gmail.com>,
Oleg Nesterov <oleg@redhat.com>,
Pavel Machek <pavel@ucw.cz>Peter
Cc: Yu-cheng Yu <yu-cheng.yu@intel.com>
Subject: [RFC PATCH v3 5/8] x86/cet/ibt: Add ENDBR to op-code-map
Date: Thu, 30 Aug 2018 07:40:06 -0700 [thread overview]
Message-ID: <20180830144009.3314-6-yu-cheng.yu@intel.com> (raw)
In-Reply-To: <20180830144009.3314-1-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
WARNING: multiple messages have this Message-ID (diff)
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>,
Cyrill Gorcunov <gorcunov@gmail.com>,
Dave Hansen <dave.hansen@linux.intel.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@chromiun.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>,
"Ravi V. Shankar" <ravi.v.shankar@intel.com>,
Vedvyas Shanbhogue <vedvyas.shanbhogue@intel.com>
Cc: Yu-cheng Yu <yu-cheng.yu@intel.com>
Subject: [RFC PATCH v3 5/8] x86/cet/ibt: Add ENDBR to op-code-map
Date: Thu, 30 Aug 2018 07:40:06 -0700 [thread overview]
Message-ID: <20180830144009.3314-6-yu-cheng.yu@intel.com> (raw)
Message-ID: <20180830144006.NL7eCOWiOSDvbKeDaYHIj0PCByZ4oSRsBtjKM0Imf-U@z> (raw)
In-Reply-To: <20180830144009.3314-1-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
next prev parent reply other threads:[~2018-08-30 14:40 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-30 14:40 [RFC PATCH v3 0/8] Control Flow Enforcement: Branch Tracking, PTRACE Yu-cheng Yu
2018-08-30 14:40 ` Yu-cheng Yu
2018-08-30 14:40 ` [RFC PATCH v3 1/8] x86/cet/ibt: Add Kconfig option for user-mode Indirect Branch Tracking Yu-cheng Yu
2018-08-30 14:40 ` Yu-cheng Yu
2018-08-30 19:38 ` Randy Dunlap
2018-08-30 19:38 ` Randy Dunlap
2018-08-30 14:40 ` [RFC PATCH v3 2/8] x86/cet/ibt: User-mode indirect branch tracking support Yu-cheng Yu
2018-08-30 14:40 ` Yu-cheng Yu
2018-08-30 14:40 ` [RFC PATCH v3 3/8] x86/cet/ibt: ELF header parsing for IBT Yu-cheng Yu
2018-08-30 14:40 ` Yu-cheng Yu
2018-08-30 14:40 ` [RFC PATCH v3 4/8] x86/cet/ibt: Add arch_prctl functions " Yu-cheng Yu
2018-08-30 14:40 ` Yu-cheng Yu
2018-08-30 14:40 ` Yu-cheng Yu [this message]
2018-08-30 14:40 ` [RFC PATCH v3 5/8] x86/cet/ibt: Add ENDBR to op-code-map Yu-cheng Yu
2018-08-30 14:40 ` [RFC PATCH v3 6/8] mm/mmap: Add IBT bitmap size to address space limit check Yu-cheng Yu
2018-08-30 14:40 ` Yu-cheng Yu
2018-08-30 14:40 ` [RFC PATCH v3 7/8] x86: Insert endbr32/endbr64 to vDSO Yu-cheng Yu
2018-08-30 14:40 ` Yu-cheng Yu
2018-08-30 14:40 ` [RFC PATCH v3 8/8] x86/cet: Add PTRACE interface for CET Yu-cheng Yu
2018-08-30 14:40 ` Yu-cheng Yu
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