Date: Tue, 6 Jan 2015 13:44:02 +0800 From: Jia-Shiun Li <jiashiun@gmail.com> To: Neel Natu <neelnatu@gmail.com> Cc: FreeBSD current <freebsd-current@freebsd.org>, Andrey Fesenko <f0andrey@gmail.com> Subject: Re: Haswell CPU Feature Message-ID: <CAHNYxxO0ZV5iF243PqbXEeDZiix4AFR2vzBUUd77%2BE1tXV5Uxw@mail.gmail.com> In-Reply-To: <CAFgRE9GOMHs=Wj0Yt0Q08bPd2Dk7apkhS4otVzBk3zN6m4xaLg@mail.gmail.com> References: <54AB306F.2070509@ignoranthack.me> <CAFgRE9Fg=YtoOXD3P2b_w9-rF4QCrMqWxqa2SGLLN-Gx00koVQ@mail.gmail.com> <54AB394E.5040601@ignoranthack.me> <CA%2BK5SrPBn5DCVseMJYneL04y-QBmNmfxf8gXr9P6zicwC4g5uw@mail.gmail.com> <54AB49C2.9020005@ignoranthack.me> <CAFgRE9GOMHs=Wj0Yt0Q08bPd2Dk7apkhS4otVzBk3zN6m4xaLg@mail.gmail.com>
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On Tue, Jan 6, 2015 at 1:23 PM, Neel Natu <neelnatu@gmail.com> wrote: > Hi Sean, > > On Mon, Jan 5, 2015 at 6:34 PM, Sean Bruno <sbruno@ignoranthack.me> wrote: > > I'm thinking something like this: > > > > Index: sys/x86/x86/identcpu.c > > =================================================================== > > - --- sys/x86/x86/identcpu.c (revision 276729) > > +++ sys/x86/x86/identcpu.c (working copy) > > @@ -781,7 +781,7 @@ > > "\011TM2" /* Thermal Monitor 2 */ > > "\012SSSE3" /* SSSE3 */ > > "\013CNXT-ID" /* L1 context ID > available */ > > - - "\014<b11>" > > + "\014SDBG" /* IA32_DEBUG_INTERFACE > debug*/ > > "\015FMA" /* Fused Multiply Add */ > > "\016CX16" /* CMPXCHG16B > Instruction */ > > "\017xTPR" /* Send Task Priority > Messages*/ > > > > > > Looks good. > Maybe also this for completeness? # svnlite diff Index: sys/x86/include/specialreg.h =================================================================== --- sys/x86/include/specialreg.h (revision 276737) +++ sys/x86/include/specialreg.h (working copy) @@ -154,6 +154,7 @@ #define CPUID2_TM2 0x00000100 #define CPUID2_SSSE3 0x00000200 #define CPUID2_CNXTID 0x00000400 +#define CPUID2_SDBG 0x00000800 #define CPUID2_FMA 0x00001000 #define CPUID2_CX16 0x00002000 #define CPUID2_XTPR 0x00004000 -Jia-Shiun
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