Re: CentOS 6 / Intel CPU support

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> Am 11.05.2017 um 16:29 schrieb Leon Fauster <leonfauster@xxxxxxxxxxxxxx>:
> 
>> Am 11.05.2017 um 14:48 schrieb Leon Fauster <leonfauster@xxxxxxxxxxxxxx>:
>> 
>> https://access.redhat.com/support/policy/intel
>> 
>> shows mainly Xeon CPUs. What about
>> 
>> Intel Core i7-6700 Quad-Core Skylake
>> 
>> has the current EL6 variant support for it?
>> 
>> Any experience? Feedback would be greatly appreciated.
> 
> 
> I found this
> 
> linux-2.6.32-696.1.1.el6/arch/x86/kernel/setup.c
> 
> 796     if ((boot_cpu_data.x86_vendor == X86_VENDOR_INTEL) &&
> 797         ((boot_cpu_data.x86 == 6))) {
> 798         switch (boot_cpu_data.x86_model) {
> 799         case 94: /* Skylake-S */
> 800         case 86: /* Broadwell-DE SoC */
> 801         case 85: /* Purley */
> 802         case 79: /* Broadwell-EP and EX */
> 803         case 78: /* Skylake-Y */
> 804         case 77: /* Atom Avoton */
> 805         case 71: /* Broadwell-H */
> 806         case 70: /* Crystal Well */
> 807             break;
> 808         default:
> 809             if (boot_cpu_data.x86_model > 63) {
> 810                 printk(KERN_CRIT
> 811                        "Detected CPU family %d model %d\n",
> 812                        boot_cpu_data.x86,
> 813                        boot_cpu_data.x86_model);
> 814                 mark_hardware_unsupported("Intel CPU model");
> 815             }
> 816             break;
> 817         }
> 818     }
> 
> not sure if "case 94: /* Skylake-S */" means support for Intel Core i7-6700 Quad-Core Skylake ...


for the record:

model 94 seems to be supported since EL6.7. 

A quick install could be booted without issues.


# cat /proc/cpuinfo | head -26 ; uname -a
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 94
model name	: Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz
stepping	: 3
microcode	: 85
cpu MHz		: 3408.025
cache size	: 8192 KB
physical id	: 0
siblings	: 8
core id		: 0
cpu cores	: 4
apicid		: 0
initial apicid	: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 22
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch ida arat epb xsaveopt pln pts dtherm hwp hwp_noitfy hwp_act_window hwp_epp tpr_shadow vnmi flexpriority ept vpid fsgsbase bmi1 hle avx2 smep bmi2 erms invpcid rtm rdseed adx
bogomips	: 6816.05
clflush size	: 64
cache_alignment	: 64
address sizes	: 39 bits physical, 48 bits virtual
power management:

Linux srv-s01.ccds.de 2.6.32-696.1.1.el6.x86_64 #1 SMP Tue Apr 11 17:13:24 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

--
LF

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