From: Tomas Hruby <tom@minix3.org>
Date: Tue, 26 Oct 2010 21:07:50 +0000 (+0000)
Subject: sys_getcpuinfo()
X-Git-Tag: v3.2.0~763
X-Git-Url: http://zhaoyanbai.com/repos/%22http:/www.isc.org/icons/doxygen.png?a=commitdiff_plain;h=ac780f36a03b7e1c5329fd5902fc3addb84dab95;p=minix.git

sys_getcpuinfo()
---

diff --git a/include/minix/com.h b/include/minix/com.h
index b452f136c..dc3d48a00 100644
--- a/include/minix/com.h
+++ b/include/minix/com.h
@@ -491,6 +491,7 @@
 #   define GET_RANDOMNESS_BIN 20 /* get one randomness bin */
 #   define GET_IDLETSC	  21	/* get cumulative idle time stamp counter */
 #   define GET_AOUTHEADER 22    /* get a.out headers from the boot image */
+#   define GET_CPUINFO    23    /* get information about cpus */
 #define I_ENDPT        m7_i4	/* calling process (may only be SELF) */
 #define I_VAL_PTR      m7_p1	/* virtual address at caller */ 
 #define I_VAL_LEN      m7_i1	/* max length of value */
diff --git a/include/minix/syslib.h b/include/minix/syslib.h
index 12850f4c7..f47d82b7e 100644
--- a/include/minix/syslib.h
+++ b/include/minix/syslib.h
@@ -183,6 +183,7 @@ _PROTOTYPE(int sys_segctl, (int *index, u16_t *seg, vir_bytes *off,
 #define sys_getkinfo(dst)	sys_getinfo(GET_KINFO, dst, 0,0,0)
 #define sys_getloadinfo(dst)	sys_getinfo(GET_LOADINFO, dst, 0,0,0)
 #define sys_getmachine(dst)	sys_getinfo(GET_MACHINE, dst, 0,0,0)
+#define sys_getcpuinfo(dst)     sys_getinfo(GET_CPUINFO, dst, 0,0,0)
 #define sys_getproctab(dst)	sys_getinfo(GET_PROCTAB, dst, 0,0,0)
 #define sys_getprivtab(dst)	sys_getinfo(GET_PRIVTAB, dst, 0,0,0)
 #define sys_getproc(dst,nr)	sys_getinfo(GET_PROC, dst, 0,0, nr)
diff --git a/kernel/system/do_getinfo.c b/kernel/system/do_getinfo.c
index e640a8bcb..c5e23b51a 100644
--- a/kernel/system/do_getinfo.c
+++ b/kernel/system/do_getinfo.c
@@ -63,6 +63,11 @@ PUBLIC int do_getinfo(struct proc * caller, message * m_ptr)
         src_vir = (vir_bytes) &kloadinfo;
         break;
     }
+    case GET_CPUINFO: {
+        length = sizeof(cpu_info);
+        src_vir = (vir_bytes) &cpu_info;
+        break;
+    }
     case GET_HZ: {
         length = sizeof(system_hz);
         src_vir = (vir_bytes) &system_hz;