Date: Thu, 30 Jun 2005 06:02:38 GMT From: Peter Wemm <peter@FreeBSD.org> To: Perforce Change Reviews <perforce@freebsd.org> Subject: PERFORCE change 79246 for review Message-ID: <200506300602.j5U62cBJ084220@repoman.freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=79246 Change 79246 by peter@peter_overcee on 2005/06/30 06:02:12 It helps to initialize the variable. I don't know what happened to the original version. Affected files ... .. //depot/projects/hammer/sys/i386/i386/identcpu.c#23 edit Differences ... ==== //depot/projects/hammer/sys/i386/i386/identcpu.c#23 (text+ko) ==== @@ -172,6 +172,13 @@ } } + /* Detect AMD features (PTE no-execute bit, Long mode etc) */ + if (strcmp(cpu_vendor, "GenuineIntel") == 0 || + strcmp(cpu_vendor, "AuthenticAMD") == 0) { + do_cpuid(0x80000001, regs); + amd_feature = regs[3] & ~(cpu_feature & 0x0183f3ff); + } + if (strcmp(cpu_vendor, "GenuineIntel") == 0) { if ((cpu_id & 0xf00) > 0x300) { u_int brand_index;
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