Commit c68bcb3a authored by Haozhong Zhang's avatar Haozhong Zhang Committed by Eduardo Habkost
Browse files

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: default avatarHaozhong Zhang <haozhong.zhang@intel.com>
Message-Id: <20171219033730.12748-3-haozhong.zhang@intel.com>
Reviewed-by: default avatarEduardo Habkost <ehabkost@redhat.com>
Reviewed-by: default avatarMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: default avatarEduardo Habkost <ehabkost@redhat.com>
parent df47ce8a

include/hw/i386/pc.h

+5 −0
Original line number Diff line number Diff line
@@ -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 \

target/i386/cpu.c

+1 −1
Original line number Diff line number Diff line
@@ -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,