Date: Tue, 25 Jul 2023 08:42:28 -0400 From: mike tancsa <mike@sentex.net> To: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: AMD microcode updates (sysutils/devcpu-data-amd) Message-ID: <fe4ee736-b8ac-8e97-e082-6eaf502b8b2d@sentex.net>
next in thread | raw e-mail | index | archive | help
Hi All, Was looking to update the handful of AMD based servers I have for the Zenbleed patch. I am used to Intel CPUs where they get updated at boot time in /boot/firmware. But when I install the AMD port, I dont see it ever installed there. If I do a userland start # /usr/local/etc/rc.d/microcode_update start Updating CPU Microcode... Done. # it seems to work, in that dmesg shows CPU: AMD EPYC 7302P 16-Core Processor (3000.06-MHz K8-class CPU) Origin="AuthenticAMD" Id=0x830f10 Family=0x17 Model=0x31 Stepping=0 Features=0x178bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2,HTT> Features2=0x7ed8320b<SSE3,PCLMULQDQ,MON,SSSE3,FMA,CX16,SSE4.1,SSE4.2,MOVBE,POPCNT,AESNI,XSAVE,OSXSAVE,AVX,F16C,RDRAND> AMD Features=0x2e500800<SYSCALL,NX,MMX+,FFXSR,Page1GB,RDTSCP,LM> AMD Features2=0x75c237ff<LAHF,CMP,SVM,ExtAPIC,CR8,ABM,SSE4A,MAS,Prefetch,OSVW,IBS,SKINIT,WDT,TCE,Topology,PCXC,PNXC,DBE,PL2I,MWAITX,<b30>> Structured Extended Features=0x219c91a9<FSGSBASE,BMI1,AVX2,SMEP,BMI2,PQM,PQE,RDSEED,ADX,SMAP,CLFLUSHOPT,CLWB,SHA> Structured Extended Features2=0x400004<UMIP,RDPID> XSAVE Features=0xf<XSAVEOPT,XSAVEC,XINUSE,XSAVES> AMD Extended Feature Extensions ID EBX=0x18cf757<CLZERO,IRPerf,XSaveErPtr> SVM: NP,NRIP,VClean,AFlush,DAssist,NAsids=32768 TSC: P-state invariant, performance statistics But how do I know if the microcode got updated ? The dmesg displaying the features are the same. Is there a command to show the microcode version before and after for AMD CPUs ? Thanks! ---Mike
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?fe4ee736-b8ac-8e97-e082-6eaf502b8b2d>