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--- lsmsr.c.orig 2011-04-05 15:54:04.000000000 -0700
+++ lsmsr.c 2011-09-15 16:44:15.000000000 -0700
@@ -31,6 +31,18 @@
#include "AMD/fam11h.h"
#include "generic_msr.h"
+#if defined(__FreeBSD__)
+# include <sys/param.h>
+# include <sys/ioctl.h>
+# if __FreeBSD_version < 701102
+# define CPUDEV "/dev/cpu%d"
+# include <cpu.h>
+# else
+# define CPUDEV "/dev/cpuctl%d"
+# include <sys/cpuctl.h>
+# endif
+#endif
+
/* Todos:
* - add (list and eventually write) support for write-only MSR
* - add decoding support for bit fields
@@ -116,6 +128,33 @@
fprintf(stdout, "%s version %s\n", g.prog, VERSION);
}
+#if defined(__FreeBSD__)
+
+static int get_msr_val(unsigned int msr, unsigned long long *val)
+{
+#if __FreeBSD_version < 701102
+ cpu_msr_args_t args;
+#else
+ cpuctl_msr_args_t args;
+#endif
+
+ args.msr = msr;
+#if __FreeBSD_version < 701102
+ if (ioctl(g.fd, CPU_RDMSR, &args) != 0) {
+#else
+ if (ioctl(g.fd, CPUCTL_RDMSR, &args) != 0) {
+#endif
+ fflush(stdout);
+ fprintf(stderr,
+ "could not read MSR 0x%8.8x (%s): %s\n",
+ msr, get_reg_name(msr, g.msr_table), strerror(errno));
+ return 0;
+ }
+ *val = args.data;
+
+ return 0;
+}
+#else /* !__FreeBSD__ */
static int get_msr_val(unsigned int msr, unsigned long long *val)
{
off64_t off;
@@ -141,11 +180,17 @@
return 0;
}
+#endif
+
static int open_dev(int cpu)
{
char s[20];
+#ifdef __FreeBSD__
+ snprintf(s, sizeof(s), CPUDEV, cpu);
+#else
snprintf(s, sizeof(s), "/dev/cpu/%d/msr", cpu);
+#endif
g.fd = open(s, O_RDONLY);
if (g.fd < 0)
fprintf(stderr, "could not open device %s: %s\n", s,
@@ -161,7 +206,7 @@
static int _show_msr(struct reg_spec *reg)
{
- unsigned long long val;
+ unsigned long long val = 0;
if (!g.list)
if (get_msr_val(reg->address, &val))
return 1;
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