Changeset 19389 in vbox for trunk/src/VBox/Runtime

Timestamp:

May 5, 2009 5:12:48 PM (16 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

46899

Message:

IPRT: Implemented RTMpPokeCpu where it made sense (untested).

Location:

trunk/src/VBox/Runtime

Files:

• Makefile.kmk (modified) (4 diffs)
• r0drv/darwin/mp-r0drv-darwin.cpp (modified) (1 diff)
• r0drv/freebsd/mp-r0drv-freebsd.c (modified) (1 diff)
• r0drv/generic/RTMpPokeCpu-r0drv-generic.cpp (added)
• r0drv/linux/mp-r0drv-linux.c (modified) (1 diff)

trunk/src/VBox/Runtime/Makefile.kmk

@@ -1109 +1109 @@
         generic/mppresent-generic.cpp \
         nt/RTErrConvertFromNtStatus.cpp \
+        r0drv/generic/RTMpPokeCpu-r0drv-generic.cpp \
         r0drv/memobj-r0drv.cpp \
         r0drv/mpnotification-r0drv.c \
@@ -1315 +1316 @@
 ifdef VBOX_WITH_SOLARIS_VBI
  RuntimeR0Drv_SOURCES.solaris += \
+        r0drv/generic/RTMpPokeCpu-r0drv-generic.cpp \
         r0drv/solaris/vbi/mpnotification-r0drv-solaris.c \
         r0drv/solaris/vbi/alloc-r0drv-solaris.c \
@@ -1351 +1353 @@
         generic/RTMpIsCpuOnline-generic.cpp \
         r0drv/generic/RTMpIsCpuWorkPending-r0drv-generic.cpp \
-        r0drv/generic/RTMpOn-r0drv-generic.cpp
+        r0drv/generic/RTMpOn-r0drv-generic.cpp \
+        r0drv/generic/RTMpPokeCpu-r0drv-generic.cpp
  else
   # Use mp-r0drv-solaris.c.
   RuntimeR0Drv_SOURCES.solaris += \
-        r0drv/solaris/mp-r0drv-solaris.c
+        r0drv/solaris/mp-r0drv-solaris.c \
+        r0drv/generic/RTMpPokeCpu-r0drv-generic.cpp
 #       r0drv/solaris/mpnotification-r0drv-solaris.c
  endif
@@ -1399 +1403 @@
         r0drv/generic/RTMpIsCpuWorkPending-r0drv-generic.cpp \
         r0drv/generic/RTMpOn-r0drv-generic.cpp \
+        r0drv/generic/RTMpPokeCpu-r0drv-generic.cpp \
         r0drv/generic/mpnotification-r0drv-generic.cpp \
         r0drv/solaris/alloc-r0drv-solaris.c \

trunk/src/VBox/Runtime/r0drv/darwin/mp-r0drv-darwin.cpp

@@ -275 +275 @@
 }
 
+
+RTDECL(int) RTMpPokeCpu(RTCPUID idCpu)
+{
+    /* no unicast IPI */
+    return VERR_NOT_SUPPORTED;
+}
+

trunk/src/VBox/Runtime/r0drv/freebsd/mp-r0drv-freebsd.c

@@ -233 +233 @@
 }
 
+
+#if __FreeBSD_version >= 700000
+/**
+ * Dummy callback for RTMpPokeCpu.
+ * @param   pvArg   Ignored
+ */
+static void rtmpFreeBSDPokeCallback(void *pvArg)
+{
+    NOREF(pvArg);
+}
+
+
+RTDECL(int) RTMpPokeCpu(RTCPUID idCpu)
+{
+    cpumask_t   Mask;
+
+    /* Will panic if no rendezvouing cpus, so make sure the cpu is online. */
+    if (!RTMpIsCpuOnline(idCpu))
+        return VERR_CPU_NOT_FOUND;
+
+    Mask = (cpumask_t)1 << idCpu;
+    smp_rendezvous_cpus(Mask, NULL, rtmpFreeBSDPokeCallback, NULL, NULL);
+
+    return VINF_SUCCESS;
+}
+
+#else  /* < 7.0 */
+RTDECL(int) RTMpPokeCpu(RTCPUID idCpu)
+{
+    return VERR_NOT_SUPPORTED;
+}
+#endif /* < 7.0 */
+

trunk/src/VBox/Runtime/r0drv/linux/mp-r0drv-linux.c

@@ -320 +320 @@
 }
 
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 19)
+/**
+ * Dummy callback used by RTMpPokeCpu.
+ *
+ * @param   pvInfo      Ignored.
+ */
+static void rtmpLinuxPokeCpuCallback(void *pvInfo)
+{
+    NOREF(pvInfo);
+}
+#endif
+
+
+RTDECL(int) RTMpPokeCpu(RTCPUID idCpu)
+{
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 19)
+    int rc;
+
+    if (!RTMpIsCpuPossible(idCpu))
+        return VERR_CPU_NOT_FOUND;
+    if (!RTMpIsCpuOnline(idCpu))
+        return VERR_CPU_OFFLINE;
+
+# if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)
+    rc = smp_call_function_single(idCpu, rtmpLinuxPokeCpuCallback, NULL, 0 /* wait */);
+# elif LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 19)
+    rc = smp_call_function_single(idCpu, rtmpLinuxPokeCpuCallback, NULL, 0 /* retry */, 0 /* wait */);
+# else  /* older kernels */
+#  error oops
+# endif /* older kernels */
+    Assert(rc == 0);
+    return VINF_SUCCESS;
+
+#else  /* older kernels */
+    /* no unicast here? */
+    return VERR_NOT_SUPPORTED;
+#endif /* older kernels */
+}
+