Date: Sun, 13 Jan 2008 12:21:02 +0000 From: "Igor Mozolevsky" <igor@hybrid-lab.co.uk> To: "Joe Marcus Clarke" <marcus@freebsd.org> Cc: current <current@freebsd.org> Subject: Re: RFC: Adding a hw.features[2] sysctl Message-ID: <a2b6592c0801130421y11982f77y7373fbe12c900496@mail.gmail.com> In-Reply-To: <1200197787.67286.13.camel@shumai.marcuscom.com> References: <1200197787.67286.13.camel@shumai.marcuscom.com>
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On 13/01/2008, Joe Marcus Clarke <marcus@freebsd.org> wrote: > I find it would be useful to have the list of CPU features available via > a sysctl. Currently, he only ways to get this information are to have > linprocfs mounted, or parse dmesg.boot (if it exists). Attached are > patches to add hw.features and hw.features2 sysctls for i386 and amd64 > (where a list of CPU features is applicable). The results are identical > to the Features and Features2 strings from dmesg: > > hw.features2: 0x41d<SSE3,RSVD2,MON,DS_CPL,CNXT-ID> > hw.features: > 0xbfebfbff<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,HTT,TM,PBE> > > Comments? Would /dev/cpuinfo not be more appropriate for this? Igor
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