Module Name: src
Committed By: jym
Date: Sat Apr 3 23:17:05 UTC 2010
Modified Files:
src/sys/arch/x86/include: specialreg.h
Log Message:
Fix the comments about cpuid flags, according cpuid documentation by
Intel and AMD.
To generate a diff of this commit:
cvs rdiff -u -r1.38 -r1.39 src/sys/arch/x86/include/specialreg.h
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/x86/include/specialreg.h
diff -u src/sys/arch/x86/include/specialreg.h:1.38 src/sys/arch/x86/include/specialreg.h:1.39
--- src/sys/arch/x86/include/specialreg.h:1.38 Wed Jan 13 12:54:49 2010
+++ src/sys/arch/x86/include/specialreg.h Sat Apr 3 23:17:05 2010
@@ -1,4 +1,4 @@
-/* $NetBSD: specialreg.h,v 1.38 2010/01/13 12:54:49 cegger Exp $ */
+/* $NetBSD: specialreg.h,v 1.39 2010/04/03 23:17:05 jym Exp $ */
/*-
* Copyright (c) 1991 The Regents of the University of California.
@@ -87,7 +87,7 @@
* CPUID "features" bits in %edx
*/
-/* Fn80000001 %edx feature */
+/* Fn00000001 %edx feature */
#define CPUID_FPU 0x00000001 /* processor has an FPU? */
#define CPUID_VME 0x00000002 /* has virtual mode (%cr4's VME/PVI) */
#define CPUID_DE 0x00000004 /* has debugging extension */
@@ -127,26 +127,20 @@
"\30MMX\31FXSR\32SSE\33SSE2\34SS\35HTT\36TM" \
"\37IA64\40SBF"
-/*
- * CPUID Intel extended features - %EDX
- */
+/* Intel Fn80000001 extended features - %edx */
#define CPUID_SYSCALL 0x00000800 /* SYSCALL/SYSRET */
#define CPUID_XD 0x00100000 /* Execute Disable */
#define CPUID_EM64T 0x20000000 /* Intel EM64T */
#define CPUID_INTEL_EXT_FLAGS "\20\14SYSCALL/SYSRET\25XD\36EM64T"
-/*
- * CPUID Intel extended features - %ECX
- */
+/* Intel Fn80000001 extended features - %ecx */
#define CPUID_LAHF 0x00000001 /* LAHF/SAHF in IA-32e mode, 64bit sub*/
#define CPUID_INTEL_FLAGS4 "\20\1LAHF"
-/*
- * AMD/VIA processor specific flags.
- */
+/* AMD/VIA Fn80000001 extended features - %edx */
/* CPUID_SYSCALL SYSCALL/SYSRET */
#define CPUID_MPC 0x00080000 /* Multiprocessing Capable */
#define CPUID_NOX 0x00100000 /* No Execute Page Protection */
@@ -161,8 +155,7 @@
#define CPUID_EXT_FLAGS "\20\14SYSCALL/SYSRET\24MPC\25NOX\27MXX\32FFXSR" \
"\33P1GB\34RDTSCP\36LONG\0373DNOW2\0403DNOW"
-
-/* AMD Fn80000001 %ecx features */
+/* AMD Fn80000001 extended features - %ecx */
#define CPUID_LAHF 0x00000001 /* LAHF/SAHF instruction */
#define CPUID_CMPLEGACY 0x00000002 /* Compare Legacy */
#define CPUID_SVM 0x00000004 /* Secure Virtual Machine */
