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target/i386: add clflushopt to "Skylake-Server" cpu model 

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 <haozhong.zhang@intel.com>
Message-Id: <20171219033730.12748-3-haozhong.zhang@intel.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
This commit is contained in:
Haozhong Zhang 2017-12-19 11:37:30 +08:00 committed by Eduardo Habkost
parent df47ce8af4
commit c68bcb3a99
2 changed files with 6 additions and 1 deletions
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5
include/hw/i386/pc.h
View File

@ -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 \

2
target/i386/cpu.c
View File

@ -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,