From 1d9d6bd6721a92ae161bd7a4e9de202691b90da0 Mon Sep 17 00:00:00 2001
From: "plai@redhat.com" <plai@redhat.com>
Date: Tue, 8 May 2018 17:40:48 +0200
Subject: [PATCH 01/17] x86/cpu: Enable new SSE/AVX/AVX512 cpu features
RH-Author: plai@redhat.com
Message-id: <1525801248-24104-1-git-send-email-plai@redhat.com>
Patchwork-id: 80114
O-Subject: [RHEL7.6 PATCH BZ 1513686] x86/cpu: Enable new SSE/AVX/AVX512 cpu features
Bugzilla: 1513686
RH-Acked-by: Eduardo Habkost <ehabkost@redhat.com>
RH-Acked-by: Igor Mammedov <imammedo@redhat.com>
RH-Acked-by: Radim Krcmar <rkrcmar@redhat.com>
From: Yang Zhong <yang.zhong@intel.com>
Intel OTC Virt tested.
Intel IceLake cpu has added new cpu features,AVX512_VBMI2/GFNI/
VAES/VPCLMULQDQ/AVX512_VNNI/AVX512_BITALG. Those new cpu features
need expose to guest VM.
The bit definition:
CPUID.(EAX=7,ECX=0):ECX[bit 06] AVX512_VBMI2
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] AVX512_VNNI
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@intel.com>
Message-Id: <1511335676-20797-1-git-send-email-yang.zhong@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit aff9e6e46a343e1404498be4edd03db1112f0950)
Signed-off-by: Paul Lai <plai@redhat.com>
Resolved Conflicts:
target/i386/cpu.c
target/i386/cpu.h
changes applied to target-i386/cpu.{c,h}
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
---
target-i386/cpu.c | 6 +++---
target-i386/cpu.h | 6 ++++++
2 files changed, 9 insertions(+), 3 deletions(-)
diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index 539c202..48a5507 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -156,9 +156,9 @@ static const char *cpuid_7_0_ebx_feature_name[] = {
static const char *cpuid_7_0_ecx_feature_name[] = {
NULL, "avx512vbmi", NULL, "pku",
- "ospke", NULL, NULL, NULL,
- NULL, NULL, NULL, NULL,
- NULL, NULL, "avx512-vpopcntdq", NULL,
+ "ospke", NULL, "avx512vbmi2", NULL,
+ "gfni", "vaes", "vpclmulqdq", "avx512vnni",
+ "avx512bitalg", NULL, "avx512-vpopcntdq", NULL,
NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL,
diff --git a/target-i386/cpu.h b/target-i386/cpu.h
index da84443..a781639 100644
--- a/target-i386/cpu.h
+++ b/target-i386/cpu.h
@@ -584,6 +584,12 @@ typedef uint32_t FeatureWordArray[FEATURE_WORDS];
#define CPUID_7_0_ECX_UMIP (1U << 2)
#define CPUID_7_0_ECX_PKU (1U << 3)
#define CPUID_7_0_ECX_OSPKE (1U << 4)
+#define CPUID_7_0_ECX_VBMI2 (1U << 6) /* Additional VBMI Instrs */
+#define CPUID_7_0_ECX_GFNI (1U << 8)
+#define CPUID_7_0_ECX_VAES (1U << 9)
+#define CPUID_7_0_ECX_VPCLMULQDQ (1U << 10)
+#define CPUID_7_0_ECX_AVX512VNNI (1U << 11)
+#define CPUID_7_0_ECX_AVX512BITALG (1U << 12)
#define CPUID_7_0_ECX_AVX512_VPOPCNTDQ (1U << 14) /* POPCNT for vectors of DW/QW */
#define CPUID_7_0_ECX_RDPID (1U << 22)
--
1.8.3.1