Changeset 106928 in vbox for trunk/src/VBox/Runtime/r3/darwin/mp-darwin.cpp

Timestamp:

Nov 11, 2024 3:18:06 PM (4 months ago)

Author:

vboxsync

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

165854

Message:

IPRT/mp-darwin.cpp: some musings regarding RTMpCpuId

File:

• trunk/src/VBox/Runtime/r3/darwin/mp-darwin.cpp (modified) (1 diff)

trunk/src/VBox/Runtime/r3/darwin/mp-darwin.cpp

@@ -144 +144 @@
     /* xnu-7195.50.7.100.1/osfmk/arm64/start.s and machine_routines.c sets TPIDRRO_EL0
        to the cpu_data_t::cpu_id value. */
+/** @todo r=bird: set_thread_register() in cswitch.s OTOH, applies MACHDEP_CPUNUM_MASK to 
+ * the value before taking it as the CPU number.  In libsyscall/os/tsd.h it is masked by
+ * the same value in _os_cpu_number(). */
     uint64_t u64Ret;
     __asm__ __volatile__("mrs %0,TPIDRRO_EL0\n\t" : "=r" (u64Ret));