xnu-1504.15.3.tar.gz

[apple/xnu.git] / bsd / dev / i386 / sysctl.c

diff --git a/bsd/dev/i386/sysctl.c b/bsd/dev/i386/sysctl.c
index 597a208c1714bf6643c778fb7b85e6c8438a8d81..c255529a19f02b299649b80d87bd32a7df70f68d 100644 (file)
--- a/bsd/dev/i386/sysctl.c
+++ b/bsd/dev/i386/sysctl.c
@@ -32,6 +32,7 @@
 #include <sys/sysctl.h>
 #include <i386/cpuid.h>
 #include <i386/tsc.h>
+#include <i386/machine_routines.h>
 
 static int
 _i386_cpu_info SYSCTL_HANDLER_ARGS
@@ -105,13 +106,23 @@ cpu_arch_perf SYSCTL_HANDLER_ARGS
     return _i386_cpu_info(oidp, ptr, arg2, req);
 }
 
+static int
+cpu_xsave SYSCTL_HANDLER_ARGS
+{
+    i386_cpu_info_t *cpu_info = cpuid_info();
+    void *ptr = (uint8_t *)cpu_info->cpuid_xsave_leafp + (uintptr_t)arg1;
+    if (cpu_info->cpuid_xsave_leafp == NULL)
+        return ENOENT;
+    return _i386_cpu_info(oidp, ptr, arg2, req);
+}
+
 static int
 cpu_features SYSCTL_HANDLER_ARGS
 {
     __unused struct sysctl_oid *unused_oidp = oidp;
     __unused void *unused_arg1 = arg1;
     __unused int unused_arg2 = arg2; 
-    char buf[256];
+    char buf[512];
 
     buf[0] = '\0';
     cpuid_get_feature_names(cpuid_features(), buf, sizeof(buf));
@@ -125,7 +136,7 @@ cpu_extfeatures SYSCTL_HANDLER_ARGS
     __unused struct sysctl_oid *unused_oidp = oidp;
     __unused void *unused_arg1 = arg1;
     __unused int unused_arg2 = arg2; 
-    char buf[256];
+    char buf[512];
 
     buf[0] = '\0';
     cpuid_get_extfeature_names(cpuid_extfeatures(), buf, sizeof(buf));
@@ -190,6 +201,28 @@ cpu_flex_ratio_max SYSCTL_HANDLER_ARGS
        return SYSCTL_OUT(req, &flex_ratio_max, sizeof(flex_ratio_max));
 }
 
+/*
+ * Populates the {CPU, vector, latency} triple for the maximum observed primary
+ * interrupt latency
+ */
+static int
+misc_interrupt_latency_max(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+       int changed = 0, error;
+       char buf[128];
+       buf[0] = '\0';
+
+       interrupt_populate_latency_stats(buf, sizeof(buf));
+
+       error = sysctl_io_string(req, buf, sizeof(buf), 0, &changed);
+
+       if (error == 0 && changed) {
+               interrupt_reset_latency_stats();
+       }
+
+       return error;
+}
+
 SYSCTL_NODE(_machdep, OID_AUTO, cpu, CTLFLAG_RW|CTLFLAG_LOCKED, 0,
        "CPU info");
 
@@ -332,6 +365,46 @@ SYSCTL_PROC(_machdep_cpu_thermal, OID_AUTO, ACNT_MCNT,
            sizeof(boolean_t),
            cpu_thermal, "I", "ACNT_MCNT capability");
 
+SYSCTL_PROC(_machdep_cpu_thermal, OID_AUTO, core_power_limits,
+           CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED, 
+           (void *)offsetof(cpuid_thermal_leaf_t, core_power_limits),
+           sizeof(boolean_t),
+           cpu_thermal, "I", "Power Limit Notifications at a Core Level");
+
+SYSCTL_PROC(_machdep_cpu_thermal, OID_AUTO, fine_grain_clock_mod,
+           CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED, 
+           (void *)offsetof(cpuid_thermal_leaf_t, fine_grain_clock_mod),
+           sizeof(boolean_t),
+           cpu_thermal, "I", "Fine Grain Clock Modulation");
+
+SYSCTL_PROC(_machdep_cpu_thermal, OID_AUTO, package_thermal_intr,
+           CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED, 
+           (void *)offsetof(cpuid_thermal_leaf_t, package_thermal_intr),
+           sizeof(boolean_t),
+           cpu_thermal, "I", "Packge Thermal interrupt and Status");
+
+SYSCTL_PROC(_machdep_cpu_thermal, OID_AUTO, hardware_feedback,
+           CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED, 
+           (void *)offsetof(cpuid_thermal_leaf_t, hardware_feedback),
+           sizeof(boolean_t),
+           cpu_thermal, "I", "Hardware Coordination Feedback");
+
+SYSCTL_PROC(_machdep_cpu_thermal, OID_AUTO, energy_policy,
+           CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED, 
+           (void *)offsetof(cpuid_thermal_leaf_t, energy_policy),
+           sizeof(boolean_t),
+           cpu_thermal, "I", "Energy Efficient Policy Support");
+
+
+SYSCTL_NODE(_machdep_cpu, OID_AUTO, xsave, CTLFLAG_RW|CTLFLAG_LOCKED, 0,
+       "xsave");
+
+SYSCTL_PROC(_machdep_cpu_xsave, OID_AUTO, extended_state,
+           CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED, 
+           (void *)offsetof(cpuid_xsave_leaf_t, extended_state),
+           sizeof(cpuid_xsave_leaf_t),
+           cpu_xsave, "IU", "XSAVE Extended State");
+
 
 SYSCTL_NODE(_machdep_cpu, OID_AUTO, arch_perf, CTLFLAG_RW|CTLFLAG_LOCKED, 0,
        "arch_perf");
@@ -544,3 +617,13 @@ SYSCTL_QUAD(_machdep_memmap, OID_AUTO, PalCode, CTLFLAG_RD|CTLFLAG_LOCKED, &firm
 SYSCTL_QUAD(_machdep_memmap, OID_AUTO, Reserved, CTLFLAG_RD|CTLFLAG_LOCKED, &firmware_Reserved_bytes, "");
 SYSCTL_QUAD(_machdep_memmap, OID_AUTO, Unusable, CTLFLAG_RD|CTLFLAG_LOCKED, &firmware_Unusable_bytes, "");
 SYSCTL_QUAD(_machdep_memmap, OID_AUTO, Other, CTLFLAG_RD|CTLFLAG_LOCKED, &firmware_other_bytes, "");
+
+SYSCTL_NODE(_machdep, OID_AUTO, tsc, CTLFLAG_RD|CTLFLAG_LOCKED, NULL, "Timestamp counter parameters");
+
+SYSCTL_QUAD(_machdep_tsc, OID_AUTO, frequency, CTLFLAG_RD|CTLFLAG_LOCKED, &tscFreq, "");
+SYSCTL_NODE(_machdep, OID_AUTO, misc, CTLFLAG_RW|CTLFLAG_LOCKED, 0,
+       "Miscellaneous x86 kernel parameters");
+
+SYSCTL_PROC(_machdep_misc, OID_AUTO, interrupt_latency_max, CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_LOCKED, 
+           0, 0,
+           misc_interrupt_latency_max, "A", "Maximum Interrupt latency");