Changeset 19389 in vbox for trunk/src/VBox/Runtime/r0drv/linux

Timestamp:

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

Author:

vboxsync

Message:

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

File:

• trunk/src/VBox/Runtime/r0drv/linux/mp-r0drv-linux.c (modified) (1 diff)

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 */
+}
+