linux-kernel - [PATCH 01/10] x86/insn: Add Key Locker instructions to the opcode map

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Date: Thu,  2 May 2024 13:58:44 +0300
From: Adrian Hunter <adrian.hunter@...el.com>
To: linux-kernel@...r.kernel.org
Cc: "Chang S. Bae" <chang.seok.bae@...el.com>,
	Masami Hiramatsu <mhiramat@...nel.org>,
	Nikolay Borisov <nik.borisov@...e.com>,
	Borislav Petkov <bp@...en8.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	x86@...nel.org,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Jiri Olsa <jolsa@...nel.org>,
	Namhyung Kim <namhyung@...nel.org>,
	Ian Rogers <irogers@...gle.com>,
	linux-perf-users@...r.kernel.org
Subject: [PATCH 01/10] x86/insn: Add Key Locker instructions to the opcode map

From: "Chang S. Bae" <chang.seok.bae@...el.com>

The x86 instruction decoder needs to know these new instructions that
are going to be used in the crypto library as well as the x86 core
code. Add the following:

LOADIWKEY:
	Load a CPU-internal wrapping key.

ENCODEKEY128:
	Wrap a 128-bit AES key to a key handle.

ENCODEKEY256:
	Wrap a 256-bit AES key to a key handle.

AESENC128KL:
	Encrypt a 128-bit block of data using a 128-bit AES key
	indicated by a key handle.

AESENC256KL:
	Encrypt a 128-bit block of data using a 256-bit AES key
	indicated by a key handle.

AESDEC128KL:
	Decrypt a 128-bit block of data using a 128-bit AES key
	indicated by a key handle.

AESDEC256KL:
	Decrypt a 128-bit block of data using a 256-bit AES key
	indicated by a key handle.

AESENCWIDE128KL:
	Encrypt 8 128-bit blocks of data using a 128-bit AES key
	indicated by a key handle.

AESENCWIDE256KL:
	Encrypt 8 128-bit blocks of data using a 256-bit AES key
	indicated by a key handle.

AESDECWIDE128KL:
	Decrypt 8 128-bit blocks of data using a 128-bit AES key
	indicated by a key handle.

AESDECWIDE256KL:
	Decrypt 8 128-bit blocks of data using a 256-bit AES key
	indicated by a key handle.

The detail can be found in Intel Software Developer Manual.

Signed-off-by: Chang S. Bae <chang.seok.bae@...el.com>
Reviewed-by: Dan Williams <dan.j.williams@...el.com>
Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>
---
 arch/x86/lib/x86-opcode-map.txt       | 11 +++++++----
 tools/arch/x86/lib/x86-opcode-map.txt | 11 +++++++----
 2 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/arch/x86/lib/x86-opcode-map.txt b/arch/x86/lib/x86-opcode-map.txt
index 12af572201a2..c94988d5130d 100644
--- a/arch/x86/lib/x86-opcode-map.txt
+++ b/arch/x86/lib/x86-opcode-map.txt
@@ -800,11 +800,12 @@ cb: sha256rnds2 Vdq,Wdq | vrcp28ss/d Vx,Hx,Wx (66),(ev)
 cc: sha256msg1 Vdq,Wdq | vrsqrt28ps/d Vx,Wx (66),(ev)
 cd: sha256msg2 Vdq,Wdq | vrsqrt28ss/d Vx,Hx,Wx (66),(ev)
 cf: vgf2p8mulb Vx,Wx (66)
+d8: AESENCWIDE128KL Qpi (F3),(000),(00B) | AESENCWIDE256KL Qpi (F3),(000),(10B) | AESDECWIDE128KL Qpi (F3),(000),(01B) | AESDECWIDE256KL Qpi (F3),(000),(11B)
 db: VAESIMC Vdq,Wdq (66),(v1)
-dc: vaesenc Vx,Hx,Wx (66)
-dd: vaesenclast Vx,Hx,Wx (66)
-de: vaesdec Vx,Hx,Wx (66)
-df: vaesdeclast Vx,Hx,Wx (66)
+dc: vaesenc Vx,Hx,Wx (66) | LOADIWKEY Vx,Hx (F3) | AESENC128KL Vpd,Qpi (F3)
+dd: vaesenclast Vx,Hx,Wx (66) | AESDEC128KL Vpd,Qpi (F3)
+de: vaesdec Vx,Hx,Wx (66) | AESENC256KL Vpd,Qpi (F3)
+df: vaesdeclast Vx,Hx,Wx (66) | AESDEC256KL Vpd,Qpi (F3)
 f0: MOVBE Gy,My | MOVBE Gw,Mw (66) | CRC32 Gd,Eb (F2) | CRC32 Gd,Eb (66&F2)
 f1: MOVBE My,Gy | MOVBE Mw,Gw (66) | CRC32 Gd,Ey (F2) | CRC32 Gd,Ew (66&F2)
 f2: ANDN Gy,By,Ey (v)
@@ -814,6 +815,8 @@ f6: ADCX Gy,Ey (66) | ADOX Gy,Ey (F3) | MULX By,Gy,rDX,Ey (F2),(v) | WRSSD/Q My,
 f7: BEXTR Gy,Ey,By (v) | SHLX Gy,Ey,By (66),(v) | SARX Gy,Ey,By (F3),(v) | SHRX Gy,Ey,By (F2),(v)
 f8: MOVDIR64B Gv,Mdqq (66) | ENQCMD Gv,Mdqq (F2) | ENQCMDS Gv,Mdqq (F3)
 f9: MOVDIRI My,Gy
+fa: ENCODEKEY128 Ew,Ew (F3)
+fb: ENCODEKEY256 Ew,Ew (F3)
 EndTable
 
 Table: 3-byte opcode 2 (0x0f 0x3a)
diff --git a/tools/arch/x86/lib/x86-opcode-map.txt b/tools/arch/x86/lib/x86-opcode-map.txt
index 12af572201a2..c94988d5130d 100644
--- a/tools/arch/x86/lib/x86-opcode-map.txt
+++ b/tools/arch/x86/lib/x86-opcode-map.txt
@@ -800,11 +800,12 @@ cb: sha256rnds2 Vdq,Wdq | vrcp28ss/d Vx,Hx,Wx (66),(ev)
 cc: sha256msg1 Vdq,Wdq | vrsqrt28ps/d Vx,Wx (66),(ev)
 cd: sha256msg2 Vdq,Wdq | vrsqrt28ss/d Vx,Hx,Wx (66),(ev)
 cf: vgf2p8mulb Vx,Wx (66)
+d8: AESENCWIDE128KL Qpi (F3),(000),(00B) | AESENCWIDE256KL Qpi (F3),(000),(10B) | AESDECWIDE128KL Qpi (F3),(000),(01B) | AESDECWIDE256KL Qpi (F3),(000),(11B)
 db: VAESIMC Vdq,Wdq (66),(v1)
-dc: vaesenc Vx,Hx,Wx (66)
-dd: vaesenclast Vx,Hx,Wx (66)
-de: vaesdec Vx,Hx,Wx (66)
-df: vaesdeclast Vx,Hx,Wx (66)
+dc: vaesenc Vx,Hx,Wx (66) | LOADIWKEY Vx,Hx (F3) | AESENC128KL Vpd,Qpi (F3)
+dd: vaesenclast Vx,Hx,Wx (66) | AESDEC128KL Vpd,Qpi (F3)
+de: vaesdec Vx,Hx,Wx (66) | AESENC256KL Vpd,Qpi (F3)
+df: vaesdeclast Vx,Hx,Wx (66) | AESDEC256KL Vpd,Qpi (F3)
 f0: MOVBE Gy,My | MOVBE Gw,Mw (66) | CRC32 Gd,Eb (F2) | CRC32 Gd,Eb (66&F2)
 f1: MOVBE My,Gy | MOVBE Mw,Gw (66) | CRC32 Gd,Ey (F2) | CRC32 Gd,Ew (66&F2)
 f2: ANDN Gy,By,Ey (v)
@@ -814,6 +815,8 @@ f6: ADCX Gy,Ey (66) | ADOX Gy,Ey (F3) | MULX By,Gy,rDX,Ey (F2),(v) | WRSSD/Q My,
 f7: BEXTR Gy,Ey,By (v) | SHLX Gy,Ey,By (66),(v) | SARX Gy,Ey,By (F3),(v) | SHRX Gy,Ey,By (F2),(v)
 f8: MOVDIR64B Gv,Mdqq (66) | ENQCMD Gv,Mdqq (F2) | ENQCMDS Gv,Mdqq (F3)
 f9: MOVDIRI My,Gy
+fa: ENCODEKEY128 Ew,Ew (F3)
+fb: ENCODEKEY256 Ew,Ew (F3)
 EndTable
 
 Table: 3-byte opcode 2 (0x0f 0x3a)
-- 
2.34.1