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[Qemu-devel] [PULL 2/8] target/i386: add clflushopt to "Skylake-Server"
From: |
Eduardo Habkost |
Subject: |
[Qemu-devel] [PULL 2/8] target/i386: add clflushopt to "Skylake-Server" cpu model |
Date: |
Thu, 18 Jan 2018 00:01:51 -0200 |
From: Haozhong Zhang <address@hidden>
CPUID_7_0_EBX_CLFLUSHOPT is missed in current "Skylake-Server" cpu
model. Add it to "Skylake-Server" cpu model on pc-i440fx-2.12 and
pc-q35-2.12. Keep it disabled in "Skylake-Server" cpu model on older
machine types.
Signed-off-by: Haozhong Zhang <address@hidden>
Message-Id: <address@hidden>
Reviewed-by: Eduardo Habkost <address@hidden>
Reviewed-by: Michael S. Tsirkin <address@hidden>
Signed-off-by: Eduardo Habkost <address@hidden>
---
include/hw/i386/pc.h | 5 +++++
target/i386/cpu.c | 2 +-
2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
index 83d825e896..bb49165fe0 100644
--- a/include/hw/i386/pc.h
+++ b/include/hw/i386/pc.h
@@ -323,6 +323,11 @@ bool e820_get_entry(int, uint32_t, uint64_t *, uint64_t *);
#define PC_COMPAT_2_11 \
HW_COMPAT_2_11 \
+ {\
+ .driver = "Skylake-Server" "-" TYPE_X86_CPU,\
+ .property = "clflushopt",\
+ .value = "off",\
+ },
#define PC_COMPAT_2_10 \
HW_COMPAT_2_10 \
diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index ad8196b166..4385853646 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -1382,7 +1382,7 @@ static X86CPUDefinition builtin_x86_defs[] = {
CPUID_7_0_EBX_SMAP | CPUID_7_0_EBX_MPX | CPUID_7_0_EBX_CLWB |
CPUID_7_0_EBX_AVX512F | CPUID_7_0_EBX_AVX512DQ |
CPUID_7_0_EBX_AVX512BW | CPUID_7_0_EBX_AVX512CD |
- CPUID_7_0_EBX_AVX512VL,
+ CPUID_7_0_EBX_AVX512VL | CPUID_7_0_EBX_CLFLUSHOPT,
/* Missing: XSAVES (not supported by some Linux versions,
* including v4.1 to v4.12).
* KVM doesn't yet expose any XSAVES state save component,
--
2.14.3
- [Qemu-devel] [PULL 0/8] x86 queue, 2018-01-17, Eduardo Habkost, 2018/01/17
- [Qemu-devel] [PULL 1/8] pc: add 2.12 machine types, Eduardo Habkost, 2018/01/17
- [Qemu-devel] [PULL 2/8] target/i386: add clflushopt to "Skylake-Server" cpu model,
Eduardo Habkost <=
- [Qemu-devel] [PULL 3/8] i386: Change X86CPUDefinition::model_id to const char*, Eduardo Habkost, 2018/01/17
- [Qemu-devel] [PULL 4/8] i386: Add support for SPEC_CTRL MSR, Eduardo Habkost, 2018/01/17
- [Qemu-devel] [PULL 5/8] i386: Add spec-ctrl CPUID bit, Eduardo Habkost, 2018/01/17
- [Qemu-devel] [PULL 8/8] i386: Add EPYC-IBPB CPU model, Eduardo Habkost, 2018/01/17
- [Qemu-devel] [PULL 6/8] i386: Add FEAT_8000_0008_EBX CPUID feature word, Eduardo Habkost, 2018/01/17
- [Qemu-devel] [PULL 7/8] i386: Add new -IBRS versions of Intel CPU models, Eduardo Habkost, 2018/01/17
- Re: [Qemu-devel] [PULL 0/8] x86 queue, 2018-01-17, Peter Maydell, 2018/01/18