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| -rw-r--r-- | doc/opal-spec.txt | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/doc/opal-spec.txt b/doc/opal-spec.txt index 9dcad31..4cff78d 100644 --- a/doc/opal-spec.txt +++ b/doc/opal-spec.txt @@ -135,6 +135,14 @@ OPAL_CHECK_TOKEN to test for optional functionality. All parameters to OPAL calls are big endian. Little endian hosts MUST appropriately convert parameters before passing them to OPAL. +Machine state across OPAL calls: +- r1 is preserved +- r12 is scratch +- r13 - 31 preserved +- 64bit HV real mode +- big endian +- external interrupts disabled + Detecting OPAL Support ---------------------- |