[Xen-devel] [PATCH v4 4/4] x86/cpuid: Enable new SSE/AVX/AVX512 cpu features

[Yang Zhong <yang.zhong@xxxxxxxxx>]

Intel IceLake cpu has added new cpu features: AVX512VBMI2/GFNI/
VAES/AVX512VNNI/AVX512BITALG/VPCLMULQDQ. Those new cpu features
need expose to guest.

The bit definition:
CPUID.(EAX=7,ECX=0):ECX[bit 06] AVX512VBMI2
CPUID.(EAX=7,ECX=0):ECX[bit 08] GFNI
CPUID.(EAX=7,ECX=0):ECX[bit 09] VAES
CPUID.(EAX=7,ECX=0):ECX[bit 10] VPCLMULQDQ
CPUID.(EAX=7,ECX=0):ECX[bit 11] AVX512VNNI
CPUID.(EAX=7,ECX=0):ECX[bit 12] AVX512_BITALG

The release document ref below link:
https://software.intel.com/sites/default/files/managed/c5/15/\
architecture-instruction-set-extensions-programming-reference.pdf

Signed-off-by: Yang Zhong <yang.zhong@xxxxxxxxx>
Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 docs/man/xl.cfg.pod.5.in                    |  3 ++-
 tools/libxl/libxl_cpuid.c                   |  6 ++++++
 tools/misc/xen-cpuid.c                      | 12 +++++++-----
 xen/include/public/arch-x86/cpufeatureset.h |  6 ++++++
 xen/tools/gen-cpuid.py                      |  3 ++-
 5 files changed, 23 insertions(+), 7 deletions(-)

diff --git a/docs/man/xl.cfg.pod.5.in b/docs/man/xl.cfg.pod.5.in
index b7b91d8..d056768 100644
--- a/docs/man/xl.cfg.pod.5.in
+++ b/docs/man/xl.cfg.pod.5.in
@@ -1731,7 +1731,8 @@ perfctr_core perfctr_nb pge pku popcnt pse pse36 psn 
rdrand rdseed rdtscp rtm
 sha skinit smap smep smx ss sse sse2 sse3 sse4.1 sse4.2 sse4_1 sse4_2 sse4a
 ssse3 svm svm_decode svm_lbrv svm_npt svm_nrips svm_pausefilt svm_tscrate
 svm_vmcbclean syscall sysenter tbm tm tm2 topoext tsc tsc-deadline tsc_adjust
-umip vme vmx wdt x2apic xop xsave xtpr
+umip vme vmx wdt x2apic xop xsave xtpr avx512_vbmi2 gfni vaes vpclmulqdq
+avx512_vnni avx512_bitalg
 
 
 The xend syntax is a list of values in the form of
diff --git a/tools/libxl/libxl_cpuid.c b/tools/libxl/libxl_cpuid.c
index e692b61..614991f 100644
--- a/tools/libxl/libxl_cpuid.c
+++ b/tools/libxl/libxl_cpuid.c
@@ -199,6 +199,12 @@ int libxl_cpuid_parse_config(libxl_cpuid_policy_list 
*cpuid, const char* str)
         {"umip",         0x00000007,  0, CPUID_REG_ECX,  2,  1},
         {"pku",          0x00000007,  0, CPUID_REG_ECX,  3,  1},
         {"ospke",        0x00000007,  0, CPUID_REG_ECX,  4,  1},
+        {"avx512_vbmi2", 0x00000007,  0, CPUID_REG_ECX,  6,  1},
+        {"gfni",         0x00000007,  0, CPUID_REG_ECX,  8,  1},
+        {"vaes",         0x00000007,  0, CPUID_REG_ECX,  9,  1},
+        {"vpclmulqdq",   0x00000007,  0, CPUID_REG_ECX, 10,  1},
+        {"avx512_vnni",  0x00000007,  0, CPUID_REG_ECX, 11,  1},
+        {"avx512_bitalg",0x00000007,  0, CPUID_REG_ECX, 12,  1},
 
         {"avx512-4vnniw",0x00000007,  0, CPUID_REG_EDX,  2,  1},
         {"avx512-4fmaps",0x00000007,  0, CPUID_REG_EDX,  3,  1},
diff --git a/tools/misc/xen-cpuid.c b/tools/misc/xen-cpuid.c
index 0831f75..ef15252 100644
--- a/tools/misc/xen-cpuid.c
+++ b/tools/misc/xen-cpuid.c
@@ -120,11 +120,13 @@ static const char *str_Da1[32] =
 
 static const char *str_7c0[32] =
 {
-    [ 0] = "prechwt1", [ 1] = "avx512vbmi",
-    [ 2] = "umip",     [ 3] = "pku",
-    [ 4] = "ospke",
-
-    [5 ... 13] = "REZ",
+    [ 0] = "prechwt1",     [ 1] = "avx512vbmi",
+    [ 2] = "umip",         [ 3] = "pku",
+    [ 4] = "ospke",        [ 5] = "REZ",
+    [ 6] = "avx512_vbmi2", [ 7] = "REZ",
+    [ 8] = "gfni",         [ 9] = "vaes",
+    [10] = "vpclmulqdq",   [11] = "avx512_vnni",
+    [12] = "avx512_bitalg",[13] = "REZ",
 
     [14] = "avx512_vpopcntdq",
 
diff --git a/xen/include/public/arch-x86/cpufeatureset.h 
b/xen/include/public/arch-x86/cpufeatureset.h
index be6da8e..85ad59a 100644
--- a/xen/include/public/arch-x86/cpufeatureset.h
+++ b/xen/include/public/arch-x86/cpufeatureset.h
@@ -228,6 +228,12 @@ XEN_CPUFEATURE(AVX512VBMI,    6*32+ 1) /*A  AVX-512 Vector 
Byte Manipulation Ins
 XEN_CPUFEATURE(UMIP,          6*32+ 2) /*S  User Mode Instruction Prevention */
 XEN_CPUFEATURE(PKU,           6*32+ 3) /*H  Protection Keys for Userspace */
 XEN_CPUFEATURE(OSPKE,         6*32+ 4) /*!  OS Protection Keys Enable */
+XEN_CPUFEATURE(AVX512_VBMI2,  6*32+ 6) /*A  addition AVX-512 VBMI Instructions 
*/
+XEN_CPUFEATURE(GFNI,          6*32+ 8) /*A  Galois Field New Instructions */
+XEN_CPUFEATURE(VAES,          6*32+ 9) /*A  Vector AES instructions */
+XEN_CPUFEATURE(VPCLMULQDQ,    6*32+ 10) /*A  vector PCLMULQDQ instructions */
+XEN_CPUFEATURE(AVX512_VNNI,   6*32+ 11) /*A  Vector Neural Network 
Instructions */
+XEN_CPUFEATURE(AVX512_BITALG, 6*32+ 12) /*A  support for VPOPCNT[B,W] and 
VPSHUFBITQMB */
 XEN_CPUFEATURE(AVX512_VPOPCNTDQ, 6*32+14) /*A  POPCNT for vectors of DW/QW */
 XEN_CPUFEATURE(RDPID,         6*32+22) /*A  RDPID instruction */
 
diff --git a/xen/tools/gen-cpuid.py b/xen/tools/gen-cpuid.py
index 9ec4486..be8df48 100755
--- a/xen/tools/gen-cpuid.py
+++ b/xen/tools/gen-cpuid.py
@@ -255,7 +255,8 @@ def crunch_numbers(state):
         # top of AVX512F
         AVX512F: [AVX512DQ, AVX512IFMA, AVX512PF, AVX512ER, AVX512CD,
                   AVX512BW, AVX512VL, AVX512VBMI, AVX512_4VNNIW,
-                  AVX512_4FMAPS, AVX512_VPOPCNTDQ],
+                  AVX512_4FMAPS, AVX512_VPOPCNTDQ, AVX512_VBMI2,
+                  AVX512_VNNI, AVX512_BITALG],
     }
 
     deep_features = tuple(sorted(deps.keys()))
-- 
1.9.1


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