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Diffstat (limited to 'doc/opal-api/opal-reinit-cpus-70.txt')
| -rw-r--r-- | doc/opal-api/opal-reinit-cpus-70.txt | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/doc/opal-api/opal-reinit-cpus-70.txt b/doc/opal-api/opal-reinit-cpus-70.txt new file mode 100644 index 0000000..27f6f2e --- /dev/null +++ b/doc/opal-api/opal-reinit-cpus-70.txt @@ -0,0 +1,27 @@ +OPAL_REINIT_CPUS +---------------- + +static int64_t opal_reinit_cpus(uint64_t flags); + +This OPAL call reinitializes some bit of CPU state across *ALL* CPUs. +Consequently, all CPUs must be in OPAL for this call to succeed (either +at boot time or after OPAL_RETURN_CPU is called) + +Arguments: +Currently, possible flags are: +enum { + OPAL_REINIT_CPUS_HILE_BE = (1 << 0), + OPAL_REINIT_CPUS_HILE_LE = (1 << 1), +}; + +Extra flags may be added in the future, so other bits *must* be 0. + +On POWER7 CPUs, only OPAL_REINIT_CPUS_HILE_BE is supported. All other +flags will return OPAL_UNSUPPORTED. + +On POWER8 CPUs, only OPAL_REINIT_CPUS_HILE_BE and OPAL_REINIT_CPUS_HILE_LE +are support and other bits *MUST NOT* be set. + +Returns: +- OPAL_SUCCESS +- OPAL_UNSUPPORTED |